2023-09-22 21:57:28 +08:00
<!DOCTYPE html> < html lang = "zh-CN" data-theme = "light" > < head > < meta charset = "UTF-8" > < meta http-equiv = "X-UA-Compatible" content = "IE=edge" > < meta name = "viewport" content = "width=device-width, initial-scale=1.0,viewport-fit=cover" > < title > 数据校验 | The Blog< / title > < meta name = "author" content = "Jason" > < meta name = "copyright" content = "Jason" > < meta name = "format-detection" content = "telephone=no" > < meta name = "theme-color" content = "#ffffff" > < meta name = "description" content = " ， ， >
< meta property = "og:type" content = "article" >
< meta property = "og:title" content = "数据校验" >
2024-05-10 10:21:35 +08:00
< meta property = "og:url" content = "https://qingling.icu/posts/27166.html" >
2023-09-22 21:57:28 +08:00
< meta property = "og:site_name" content = "The Blog" >
< meta property = "og:description" content = " ， ， >
< meta property = "og:locale" content = "zh_CN" >
2024-05-13 22:30:15 +08:00
< meta property = "og:image" content = "https://qingling.icu/img/4.png" >
2023-09-22 21:57:28 +08:00
< meta property = "article:published_time" content = "2023-06-12T08:54:11.000Z" >
< meta property = "article:modified_time" content = "2023-09-11T23:36:48.000Z" >
< meta property = "article:author" content = "Jason" >
< meta property = "article:tag" content = "Java" >
< meta name = "twitter:card" content = "summary" >
2024-06-14 22:00:25 +08:00
< meta name = "twitter:image" content = "https://qingling.icu/img/4.png" > < link rel = "shortcut icon" href = "/img/%E5%9B%BE%E6%A0%87.png" > < link rel = "canonical" href = "https://qingling.icu/posts/27166.html" > < link rel = "preconnect" href = "//fastly.jsdelivr.net" / > < link rel = "preconnect" href = "//busuanzi.ibruce.info" / > < link rel = "stylesheet" href = "/css/index.css" > < link rel = "stylesheet" href = "/cdn/icon/fontawesome-free/css/all.min.css" media = "print" onload = "this.media='all'" > < link rel = "stylesheet" href = "/cdn/css/snackbar.min.css" media = "print" onload = "this.media='all'" > < link rel = "stylesheet" href = "/cdn/css/fancybox.min.css" media = "print" onload = "this.media='all'" > < script > c o n s t G L O B A L _ C O N F I G = {
2023-09-22 21:57:28 +08:00
root: '/',
algolia: undefined,
localSearch: {"path":"/search.xml","preload":true,"top_n_per_article":1,"unescape":false,"languages":{"hits_empty":"找不到您查询的内容：${query}","hits_stats":"共找到 ${hits} 篇文章"}},
translate: undefined,
noticeOutdate: undefined,
highlight: {"plugin":"highlighjs","highlightCopy":true,"highlightLang":true,"highlightHeightLimit":400},
copy: {
success: '复制成功',
error: '复制错误',
noSupport: '浏览器不支持'
},
relativeDate: {
homepage: true,
post: true
},
runtime: '天',
dateSuffix: {
just: '刚刚',
min: '分钟前',
hour: '小时前',
day: '天前',
month: '个月前'
},
copyright: undefined,
lightbox: 'mediumZoom',
2023-12-09 14:21:01 +08:00
Snackbar: {"chs_to_cht":"你已切换为繁体","cht_to_chs":"你已切换为简体","day_to_night":"你已切换为深色模式","night_to_day":"你已切换为浅色模式","bgLight":"#006650","bgDark":"#006650","position":"top-center"},
2023-09-22 21:57:28 +08:00
source: {
justifiedGallery: {
2023-09-30 18:36:25 +08:00
js: 'https://fastly.jsdelivr.net/npm/flickr-justified-gallery/dist/fjGallery.min.js',
css: 'https://fastly.jsdelivr.net/npm/flickr-justified-gallery/dist/fjGallery.min.css'
2023-09-22 21:57:28 +08:00
}
},
isPhotoFigcaption: false,
islazyload: false,
2023-12-10 21:57:00 +08:00
isAnchor: true,
2023-09-22 21:57:28 +08:00
percent: {
toc: true,
rightside: false,
},
2023-12-09 19:59:36 +08:00
autoDarkmode: true
2023-09-22 21:57:28 +08:00
}< / script > < script id = "config-diff" > v a r G L O B A L _ C O N F I G _ S I T E = {
title: '数据校验',
isPost: true,
isHome: false,
isHighlightShrink: false,
isToc: true,
postUpdate: '2023-09-12 07:36:48'
}< / script > < noscript > < style type = "text/css" >
#nav {
opacity: 1
}
.justified-gallery img {
opacity: 1
}
#recent-posts time,
#post-meta time {
display: inline !important
}
< / style > < / noscript > < script > ( w i n = > {
win.saveToLocal = {
set: function setWithExpiry(key, value, ttl) {
if (ttl === 0) return
const now = new Date()
const expiryDay = ttl * 86400000
const item = {
value: value,
expiry: now.getTime() + expiryDay,
}
localStorage.setItem(key, JSON.stringify(item))
},
get: function getWithExpiry(key) {
const itemStr = localStorage.getItem(key)
if (!itemStr) {
return undefined
}
const item = JSON.parse(itemStr)
const now = new Date()
if (now.getTime() > item.expiry) {
localStorage.removeItem(key)
return undefined
}
return item.value
}
}
win.getScript = url => new Promise((resolve, reject) => {
const script = document.createElement('script')
script.src = url
script.async = true
script.onerror = reject
script.onload = script.onreadystatechange = function() {
const loadState = this.readyState
if (loadState & & loadState !== 'loaded' & & loadState !== 'complete') return
script.onload = script.onreadystatechange = null
resolve()
}
document.head.appendChild(script)
})
win.getCSS = (url,id = false) => new Promise((resolve, reject) => {
const link = document.createElement('link')
link.rel = 'stylesheet'
link.href = url
if (id) link.id = id
link.onerror = reject
link.onload = link.onreadystatechange = function() {
const loadState = this.readyState
if (loadState & & loadState !== 'loaded' & & loadState !== 'complete') return
link.onload = link.onreadystatechange = null
resolve()
}
document.head.appendChild(link)
})
win.activateDarkMode = function () {
document.documentElement.setAttribute('data-theme', 'dark')
if (document.querySelector('meta[name="theme-color"]') !== null) {
document.querySelector('meta[name="theme-color"]').setAttribute('content', '#0d0d0d')
}
}
win.activateLightMode = function () {
document.documentElement.setAttribute('data-theme', 'light')
if (document.querySelector('meta[name="theme-color"]') !== null) {
document.querySelector('meta[name="theme-color"]').setAttribute('content', '#ffffff')
}
}
const t = saveToLocal.get('theme')
2023-12-09 19:59:36 +08:00
const isDarkMode = window.matchMedia('(prefers-color-scheme: dark)').matches
const isLightMode = window.matchMedia('(prefers-color-scheme: light)').matches
const isNotSpecified = window.matchMedia('(prefers-color-scheme: no-preference)').matches
const hasNoSupport = !isDarkMode & & !isLightMode & & !isNotSpecified
if (t === undefined) {
if (isLightMode) activateLightMode()
else if (isDarkMode) activateDarkMode()
else if (isNotSpecified || hasNoSupport) {
const now = new Date()
const hour = now.getHours()
const isNight = hour < = 8 || hour >= 22
isNight ? activateDarkMode() : activateLightMode()
}
window.matchMedia('(prefers-color-scheme: dark)').addListener(function (e) {
if (saveToLocal.get('theme') === undefined) {
e.matches ? activateDarkMode() : activateLightMode()
}
})
} else if (t === 'light') activateLightMode()
else activateDarkMode()
2023-09-22 21:57:28 +08:00
const asideStatus = saveToLocal.get('aside-status')
if (asideStatus !== undefined) {
if (asideStatus === 'hide') {
document.documentElement.classList.add('hide-aside')
} else {
document.documentElement.classList.remove('hide-aside')
}
}
const detectApple = () => {
if(/iPad|iPhone|iPod|Macintosh/.test(navigator.userAgent)){
document.documentElement.classList.add('apple')
}
}
detectApple()
2024-06-14 22:00:25 +08:00
})(window)< / script > < script src = "https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js" > < / script > < script type = "text/javascript" src = "/js/welcome.js" > < / script > < script src = "/js/sweetalert.js" > < / script > < link rel = "stylesheet" href = "/css/sweetalert.css" > <!-- hexo injector head_end start --> < link rel = "stylesheet" href = "https://npm.elemecdn.com/hexo-butterfly-swiper/lib/swiper.min.css" media = "print" onload = "this.media='all'" > < link rel = "stylesheet" href = "https://npm.elemecdn.com/hexo-butterfly-swiper/lib/swiperstyle.css" media = "print" onload = "this.media='all'" > <!-- hexo injector head_end end --> < meta name = "generator" content = "Hexo 6.3.0" > < / head > < body > < div id = "sidebar" > < div id = "menu-mask" > < / div > < div id = "sidebar-menus" > < div class = "avatar-img is-center" > < img src = "/img/avatar.jpg" onerror = "onerror=null;src='/img/loading.gif'" alt = "avatar" / > < / div > < div class = "sidebar-site-data site-data is-center" > < a href = "/archives/" > < div class = "headline" > 文章< / div > < div class = "length-num" > 60< / div > < / a > < a href = "/tags/" > < div class = "headline" > 标签< / div > < div class = "length-num" > 39< / div > < / a > < a href = "/categories/" > < div class = "headline" > 分类< / div > < div class = "length-num" > 10< / div > < / a > < / div > < br / > < div class = "menus_items" > < div class = "menus_item" > < a class = "site-page" target = "_blank" rel = "noopener" href = "https://www.tutorialspoint.com/compile_java8_online.php" > < i class = "fa-fw fas fa-code" > < / i > < span > 代码< / span > < / a > < / div > < div class = "menus_item" > < a class = "site-page" href = "/notice/" > < i class = "fa-fw fas fa-stream" > < / i > < span > 公告< / span > < / a > < / div > < div class = "menus_item" > < a class = "site-page" href = "/website/" > < i class = "fa-fw fas fa-list" > < / i > < span > 网址< / span > < / a > < / div > < div class = "menus_item" > < a class = "site-page" href = "/" > < i class = "fa-fw fas fa-home" > < / i > < span > 主页< / span > < / a > < / div > < / div > < / div > < / div > < div class = "post" id = "body-wrap" > < header class = "not-top-img" id = "page-header" > < nav id = "nav" > < span id = "blog-info" > < a href = "/" title = "The Blog" > < img class = "site-icon" src = "/img/logo.png" / > < span class = "site-name" > The Blog< / span > < / a > < / span > < div id = "menus" > < div id = "search-button" > < a class = "site-page social-icon search" href = "javascript:void(0);" > < i class = "fas fa-search fa-fw" > < / i > < span > 搜索< / span > < / a > < / div > < div class = "menus_items" > < div class = "menus_item" > < a class = "site-page" target = "_blank" rel = "noopener" href = "https://www.tutorialspoint.com/compile_java8_online.php" > < i class = "fa-fw fas fa-code" > < / i > < span > 代码< / span > < / a > < / div > < div class = "menus_item" > < a class = "site-page" href = "/notice/" > < i class = "fa-fw fas fa-stream" > < / i > < span > 公告< / span > < / a > < / div > < div class = "menus_item" > < a class = "site-page" href = "/website/" > < i class = "fa-fw fas fa-list" > < / i > < span > 网址< / span > < / a > < / div > < div class = "menus_item" > < a class = "site-page" href = "/" > < i class = "fa-fw fas fa-home" > < / i > < span > 主页< / span > < / a > < / div > < / div > < div id = "toggle-menu" > < a class = "site-page" href = "javascript:void(0);" > < i class = "fas fa-bars fa-fw" > < / i > < / a > < / div > < / div > < / nav > < / header > < main class = "layout" id = "content-inner" > < div id = "post" > < div id = "post-info" > < h1 class = "post-title" > 数据校验< / h1 > < div id = "post-meta" > < div class = "meta-firstline" > < span class = "post-meta-date" > < i class = "far fa-calendar-alt fa-fw post-meta-icon" > < / i > < span class = "post-meta-label" > 发表于< / span > < time class = "post-meta-date-created" datetime = "2023-06-12T08:54:11.000Z" title = "发表于 2023-06-12 16:54:11" > 2023-06-12< / time > < span class = "post-meta-separator" > |< / span > < i class = "fas fa-history fa-fw post-meta-icon" > < / i > < span class = "post-meta-label" > 更新于< / span > < time class = "post-meta-date-updated" datetime = "2023-09-11T23:36:48.000Z" title = "更新于 2023-09-12 07:36:48" > 2023-09-12< / time > < / span > < span class = "post-meta-categories" > < span class = "post-meta-separator" > |< / span > < i class = "fas fa-inbox fa-fw post-meta-icon" > < / i > < a class = "post-meta-categories" href = "/categories/%E5%90%8E%E7%AB%AF/" > 后端< / a > < / span > < / div > < div class = "meta-secondline" > < span class = "post-meta-separator" > |< / span > < span class = "post-meta-wordcount" > < i class = "far fa-file-word fa-fw post-meta-icon" > < / i > < span class = "post-meta-label" > 字数总计:< / span > < span class = "word-count" > 2.3k<
2023-09-22 21:57:28 +08:00
< h2 id = "一-JSR303数据校验" > < a href = "#一-JSR303数据校验" class = "headerlink" title = "一.JSR303数据校验" > < / a > 一.JSR303数据校验< / h2 > < h3 id = "1-引入依赖" > < a href = "#1-引入依赖" class = "headerlink" title = "1.引入依赖" > < / a > 1.引入依赖< / h3 > < figure class = "highlight xml" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "tag" > < < span class = "name" > dependency< / span > > < / span > < / span > < br > < span class = "line" > < span class = "tag" > < < span class = "name" > groupId< / span > > < / span > org.hibernate< span class = "tag" > < /< span class = "name" > groupId< / span > > < / span > < / span > < br > < span class = "line" > < span class = "tag" > < < span class = "name" > artifactId< / span > > < / span > hibernate-validator< span class = "tag" > < /< span class = "name" > artifactId< / span > > < / span > < / span > < br > < span class = "line" > < span class = "tag" > < < span class = "name" > version< / span > > < / span > 6.0.7.Final< span class = "tag" > < /< span class = "name" > version< / span > > < / span > < / span > < br > < span class = "line" > < span class = "tag" > < /< span class = "name" > dependency< / span > > < / span > < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< h3 id = "2-给实体类添加校验注解， > < a href = "#2-给实体类添加校验注解， class = "headerlink" title = "2.给实体类添加校验注解， > < / a > 2.给实体类添加校验注解， < / h3 > < p > < strong > 常用的检验注解< / strong > < / p >
< img src = "/pictures/image-20230612170704286.png" alt = "image-20230612170704286" style = "zoom:150%;" / >
< p > < strong > 示例< / strong > < / p >
< figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < span class = "line" > 25< / span > < br > < span class = "line" > 26< / span > < br > < span class = "line" > 27< / span > < br > < span class = "line" > 28< / span > < br > < span class = "line" > 29< / span > < br > < span class = "line" > 30< / span > < br > < span class = "line" > 31< / span > < br > < span class = "line" > 32< / span > < br > < span class = "line" > 33< / span > < br > < span class = "line" > 34< / span > < br > < span class = "line" > 35< / span > < br > < span class = "line" > 36< / span > < br > < span class = "line" > 37< / span > < br > < span class = "line" > 38< / span > < br > < span class = "line" > 39< / span > < br > < span class = "line" > 40< / span > < br > < span class = "line" > 41< / span > < br > < span class = "line" > 42< / span > < br > < span class = "line" > 43< / span > < br > < span class = "line" > 44< / span > < br > < span class = "line" > 45< / span > < br > < span class = "line" > 46< / span > < br > < span class = "line" > 47< / span > < br > < span class = "line" > 48< / span > < br > < span class = "line" > 49< / span > < br > < span class = "line" > 50< / span > < br > < span class = "line" > 51< / span > < br > < span class = "line" > 52< / span > < br > < span class = "line" > 53< / span > < br > < span class = "line" > 54< / span > < br > < span class = "line" > 55< / span > < br > < span class = "line" > 56< / span > < br > < span class = "line" > 57< / span > < br > < span class = "line" > 58< / span > < br > < span class = "line" > 59< / span > < br > < span class = "line" > 60< / span > < br > < span class = "line" > 61< / span > < br > < span class = "line" > 62< / span > < br > < span class = "line" > 63< / span > < br > < span class = "line" > 64< / span > < br > < span class = "line" > 65< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "keyword" > package< / span > com.atguigu.gulimall.product.entity;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > com.baomidou.mybatisplus.annotation.TableId;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > com.baomidou.mybatisplus.annotation.TableName;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > java.io.Serializable;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > lombok.Data;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > org.hibernate.validator.constraints.URL;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > javax.validation.constraints.Min;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > javax.validation.constraints.NotBlank;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > javax.validation.constraints.NotEmpty;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > javax.validation.constraints.Pattern;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * 品牌< / span > < / span > < br > < span class = "line" > < span class = "comment" > *< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @author< / span > JasonGong< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @email< / span > JasonGong@gmail.com< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @date< / span > 2023-05-19 00:23:36< / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "meta" > @Data< / span > < / span > < br > < span class = "line" > < span class = "meta" > @TableName(" pms_brand" )< / span > < / span > < br > < span class = "line" > < span cla
< h3 id = "3-开启校验功能-Valid" > < a href = "#3-开启校验功能-Valid" class = "headerlink" title = "3.开启校验功能@Valid" > < / a > 3.开启校验功能@Valid< / h3 > < figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * 保存< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @Valid< / span > 注解开启校验< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @param< / span > result 检验之后响应的结果信息< / span > < / span > < br > < span class = "line" > < span class = "comment" > * 给校验的bean后紧跟一个BindingResult， < / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "meta" > @RequestMapping(" /save" )< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > R < span class = "title function_" > save< / span > < span class = "params" > (< span class = "meta" > @Valid< / span > < span class = "meta" > @RequestBody< / span > BrandEntity brand, BindingResult result< span class = "comment" > /*紧跟在需要校验的字段后面*/< / span > )< / span > { < / span > < br > < span class = "line" > < span class = "keyword" > if< / span > (result.hasErrors()){ < span class = "comment" > //判断有没有校验的错误< / span > < / span > < br > < span class = "line" > Map< String,String> map = < span class = "keyword" > new< / span > < span class = "title class_" > HashMap< / span > < > ();< / span > < br > < span class = "line" > < span class = "comment" > //获取检验的错误结果, result.getFieldErrors()：校验出错的字段的集合< / span > < / span > < br > < span class = "line" > < span class = "keyword" > for< / span > (FieldError fieldError : result.getFieldErrors()) { < / span > < br > < span class = "line" > < span class = "type" > String< / span > < span class = "variable" > defaultMessage< / span > < span class = "operator" > =< / span > fieldError.getDefaultMessage();< span class = "comment" > //获取到错误的提示< / span > < / span > < br > < span class = "line" > < span class = "type" > String< / span > < span class = "variable" > field< / span > < span class = "operator" > =< / span > fieldError.getField();< span class = "comment" > //获取错误的属性（字段）的名字< / span > < / span > < br > < span class = "line" > < span class = "comment" > //封装在一个集合中方便后期统一通过R返回结果< / span > < / span > < br > < span class = "line" > map.put(field,defaultMessage);< / span > < br > < span class = "line" > } < / span > < br > < span class = "line" > < span class = "keyword" > return< / span > R.error(< span class = "number" > 400< / span > ,< span class = "string" > " 提交的数据不合法" < / span > ).put(< span class = "string" > " data" < / span > ,map);< / span > < br > < span class = "line" > } < span class = "keyword" > else< / span > { < / span > < br > < span class = "line" > < span class = "comment" > //校验合格的话，就做进行业务的处理< / span > < / span > < br > < span class = "line" > brandService.save(brand);< / span > < br > < span class = "line" > } < / span > < br > < span class = "line" > < span class = "keyword" > return< / span > R.ok();< / span > < br > < span class = "line" > } < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< p > 测试查看返回的数据的格式,这里我们输入的都是不合法的数据格式，返回的结果如下< / p >
< figure class = "highlight json" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "punctuation" > { < / span > < / span > < br > < span class = "line" > < span class = "attr" > " msg" < / span > < span class = "punctuation" > :< / span > < span class = "string" > " 提交的数据不合法" < / span > < span class = "punctuation" > ,< / span > < / span > < br > < span class = "line" > < span class = "attr" > " code" < / span > < span class = "punctuation" > :< / span > < span class = "number" > 400< / span > < span class = "punctuation" > ,< / span > < / span > < br > < span class = "line" > < span class = "attr" > " data" < / span > < span class = "punctuation" > :< / span > < span class = "punctuation" > { < / span > < / span > < br > < span class = "line" > < span class = "attr" > " name" < / span > < span class = "punctuation" > :< / span > < span class = "string" > " 品牌名必须提交" < / span > < span class = "punctuation" > ,< / span > < span class = "comment" > //字段:错误信息< / span > < / span > < br > < span class = "line" > < span class = "attr" > " logo" < / span > < span class = "punctuation" > :< / span > < span class = "string" > " logo必须是一个合法的URL地址" < / span > < span class = "punctuation" > ,< / span > < / span > < br > < span class = "line" > < span class = "attr" > " sort" < / span > < span class = "punctuation" > :< / span > < span class = "string" > " 排序必须大于等于0" < / span > < span class = "punctuation" > ,< / span > < / span > < br > < span class = "line" > < span class = "attr" > " firstLetter" < / span > < span class = "punctuation" > :< / span > < span class = "string" > " 检索首字母必须是一个字母" < / span > < / span > < br > < span class = "line" > < span class = "punctuation" > } < / span > < / span > < br > < span class = "line" > < span class = "punctuation" > } < / span > < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< p > 参数没有错误之后返回的数据< / p >
< figure class = "highlight json" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "punctuation" > { < / span > < / span > < br > < span class = "line" > < span class = "attr" > " msg" < / span > < span class = "punctuation" > :< / span > < span class = "string" > " success" < / span > < span class = "punctuation" > ,< / span > < / span > < br > < span class = "line" > < span class = "attr" > " code" < / span > < span class = "punctuation" > :< / span > < span class = "number" > 0< / span > < / span > < br > < span class = "line" > < span class = "punctuation" > } < / span > < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< h3 id = "4-上面的代码过于冗余-我们可以直接使用统一异常处理处理数据校验的异常" > < a href = "#4-上面的代码过于冗余-我们可以直接使用统一异常处理处理数据校验的异常" class = "headerlink" title = "4.上面的代码过于冗余,我们可以直接使用统一异常处理处理数据校验的异常" > < / a > 4.上面的代码过于冗余,我们可以直接使用统一异常处理处理数据校验的异常< / h3 > < p > 在统一异常处理类上加上数据校验异常的异常处理< / p >
< figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < span class = "line" > 25< / span > < br > < span class = "line" > 26< / span > < br > < span class = "line" > 27< / span > < br > < span class = "line" > 28< / span > < br > < span class = "line" > 29< / span > < br > < span class = "line" > 30< / span > < br > < span class = "line" > 31< / span > < br > < span class = "line" > 32< / span > < br > < span class = "line" > 33< / span > < br > < span class = "line" > 34< / span > < br > < span class = "line" > 35< / span > < br > < span class = "line" > 36< / span > < br > < span class = "line" > 37< / span > < br > < span class = "line" > 38< / span > < br > < span class = "line" > 39< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "keyword" > package< / span > com.atguigu.gulimall.product.exception;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > com.atguigu.common.utils.R;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > lombok.extern.slf4j.Slf4j;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > org.springframework.validation.BindingResult;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > org.springframework.validation.FieldError;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > org.springframework.web.bind.MethodArgumentNotValidException;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > org.springframework.web.bind.annotation.ExceptionHandler;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > org.springframework.web.bind.annotation.RestControllerAdvice;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > java.util.HashMap;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > java.util.Map;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @author< / span > Jason Gong< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @version< / span > 1.0< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @Date< / span > 2023/6/12< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @Description< / span > 异常处理类< / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "meta" > @Slf4j< / span > < / span > < br > < span class = "line" > < span class = "meta" > @RestControllerAdvice(basePackages = " com.atguigu.gulimall.product.controller" )< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > < span class = "keyword" > class< / span > < span class = "title class_" > GulimallExceptionControllerAdvice< / span > { < / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "meta" > @ExceptionHandler(value = MethodArgumentNotValidException.class)< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > R < span class = "title function_" > handleValidException< / span > < span class = "params" > (MethodArgumentNotValidException e)< / span > { < / span > < br > < span class = "line" > log.error(< span class = "string" > " 数据校验出现问题:{ } ,异常类型:{ } " < / span > ,e.getMessage(),e.getClass());< / span > < br > < span class = "line" > Map< String,String> map = < span class = "keyword" > new< / span > < span class = "title class_" > HashMap< / span > < > ();
< p > 这个时候上面的代码就可以简化为下面的格式，数据校验出现问题之后就直接在统一异常处理中处理了< / p >
< figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * 保存< / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "meta" > @RequestMapping(" /save" )< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > R < span class = "title function_" > save< / span > < span class = "params" > (< span class = "meta" > @Valid< / span > < span class = "meta" > @RequestBody< / span > BrandEntity brand )< / span > { < / span > < br > < span class = "line" > brandService.save(brand);< / span > < br > < span class = "line" > < span class = "keyword" > return< / span > R.ok();< / span > < br > < span class = "line" > } < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< h3 id = "5-分组校验功能" > < a href = "#5-分组校验功能" class = "headerlink" title = "5.分组校验功能" > < / a > 5.分组校验功能< / h3 > < pre > < code > 例如:当我们在添加一个品牌的时候， ， ， ， ，
< / code > < / pre >
< h4 id = "5-1-定义空接口-作为分组校验的组" > < a href = "#5-1-定义空接口-作为分组校验的组" class = "headerlink" title = "5.1 定义空接口,作为分组校验的组" > < / a > 5.1 定义空接口,作为分组校验的组< / h4 > < p > 添加操作的组< / p >
< figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "keyword" > package< / span > com.atguigu.common.valid;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > < span class = "keyword" > interface< / span > < span class = "title class_" > AddGroup< / span > { < / span > < br > < span class = "line" > } < / span > < br > < span class = "line" > < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< p > 修改操作的组< / p >
< figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "keyword" > package< / span > com.atguigu.common.valid;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > < span class = "keyword" > interface< / span > < span class = "title class_" > UpdateGroup< / span > { < / span > < br > < span class = "line" > } < / span > < br > < span class = "line" > < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< h4 id = "5-2-在实体类上添加上分组的信息" > < a href = "#5-2-在实体类上添加上分组的信息" class = "headerlink" title = "5.2 在实体类上添加上分组的信息" > < / a > 5.2 在实体类上添加上分组的信息< / h4 > < p > < strong > 注意:使用了分组校验之后,其余的字段也要加上分组信息，否则没有加上分组信息的会失效< / strong > < / p >
< figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< /span>< br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < span class = "line" > 25< / span > < br > < span class = "line" > 26< / span > < br > < span class = "line" > 27< / span > < br > < span class = "line" > 28< / span > < br > < span class = "line" > 29< / span > < br > < span class = "line" > 30< / span > < br > < span class = "line" > 31< / span > < br > < span class = "line" > 32< / span > < br > < span class = "line" > 33< / span > < br > < span class = "line" > 34< / span > < br > < span class = "line" > 35< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "keyword" > package< / span > com.atguigu.gulimall.product.entity;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > com.atguigu.common.valid.AddGroup;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > com.atguigu.common.valid.UpdateGroup;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > com.baomidou.mybatisplus.annotation.TableId;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > com.baomidou.mybatisplus.annotation.TableName;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > java.io.Serializable;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > lombok.Data;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > org.hibernate.validator.constraints.URL;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > javax.validation.constraints.*;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "meta" > @Data< / span > < / span > < br > < span class = "line" > < span class = "meta" > @TableName(" pms_brand" )< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > < span class = "keyword" > class< / span > < span class = "title class_" > BrandEntity< / span > < span class = "keyword" > implements< / span > < span class = "title class_" > Serializable< / span > { < / span > < br > < span class = "line" > < span class = "keyword" > private< / span > < span class = "keyword" > static< / span > < span class = "keyword" > final< / span > < span class = "type" > long< / span > < span class = "variable" > serialVersionUID< / span > < span class = "operator" > =< / span > < span class = "number" > 1L< / span > ;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * 品牌id< / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "meta" > @NotNull(message = " 修改必须指定品牌id" , groups = { UpdateGroup.class} )< / span > < span class = "comment" > //在修改的时候进行校验< / span > < / span > < br > < span class = "line" > < span class = "meta" > @Null(message = " 新增不能指定id" , groups = { AddGroup.class} )< / span > < span class = "comment" > //在添加的时候进行校验< / span > < / span > < br > < span class = "line" > < span class = "meta" > @TableId< / span > < / span > < br > < span class = "line" > < span class = "keyword" > private< / span > Long brandId;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * 品牌名< / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "meta" > @NotBlank(message = " 品牌名
< h4 id = "5-3-在控制层添加上相应的注解信息-指定当前是操作属于的分组" > < a href = "#5-3-在控制层添加上相应的注解信息-指定当前是操作属于的分组" class = "headerlink" title = "5.3 在控制层添加上相应的注解信息,指定当前是操作属于的分组" > < / a > 5.3 在控制层添加上相应的注解信息,指定当前是操作属于的分组< / h4 > < p > < strong > 注意:这里如果产生数据校验的出现问题的异常，会由统一异常处理进行处理< / strong > < / p >
< p > 保存的控制器方法上添加上添加分组信息< / p >
< figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * 保存< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @Validated< / span > ({ AddGroup.class} ) 指定使用添加分组的校验< / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "meta" > @RequestMapping(" /save" )< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > R < span class = "title function_" > save< / span > < span class = "params" > (< span class = "meta" > @Validated({ AddGroup.class} )< / span > < span class = "meta" > @RequestBody< / span > BrandEntity brand )< / span > { < / span > < br > < span class = "line" > brandService.save(brand);< / span > < br > < span class = "line" > < span class = "keyword" > return< / span > R.ok();< / span > < br > < span class = "line" > } < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< p > 修改的分组上添加上修改的分组信息< / p >
< figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * 修改< / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "meta" > @RequestMapping(" /update" )< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > R < span class = "title function_" > update< / span > < span class = "params" > (< span class = "meta" > @Validated({ UpdateGroup.class} )< / span > < span class = "meta" > @RequestBody< / span > BrandEntity brand)< / span > { < / span > < br > < span class = "line" > brandService.updateById(brand);< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > return< / span > R.ok();< / span > < br > < span class = "line" > } < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< p > 测试:我们在新增的时候加上品牌的id， < / p >
< p > < img src = "/pictures/image-20230614105450858.png" alt = "image-20230614105450858" > < / p >
< p > 修改的时候不带品牌的id信息< / p >
< p > < img src = "/pictures/image-20230614111024292.png" alt = "image-20230614111024292" > < / p >
< h3 id = "6-自定义校验" > < a href = "#6-自定义校验" class = "headerlink" title = "6.自定义校验" > < / a > 6.自定义校验< / h3 > < p > < strong > 这里我们以编写一个输入的值只能是指定值的注解为例< / strong > < / p >
< figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * 显示状态[0-不显示； < / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "comment" > //注意:我们使用了分组校验， < / span > < / span > < br > < span class = "line" > < span class = "meta" > @ListValue(vals = { 0, 1} , groups = { AddGroup.class, UpdateGroup.class} )< / span > < span class = "comment" > //自定义的注解， < / span > < / span > < br > < span class = "line" > < span class = "keyword" > private< / span > Integer showStatus;< / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< h4 id = "6-1-编写一个自定义的校验注解" > < a href = "#6-1-编写一个自定义的校验注解" class = "headerlink" title = "6.1 编写一个自定义的校验注解" > < / a > 6.1 编写一个自定义的校验注解< / h4 > < p > 编写自定义注解< / p >
< figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < span class = "line" > 25< / span > < br > < span class = "line" > 26< / span > < br > < span class = "line" > 27< / span > < br > < span class = "line" > 28< / span > < br > < span class = "line" > 29< / span > < br > < span class = "line" > 30< / span > < br > < span class = "line" > 31< / span > < br > < span class = "line" > 32< / span > < br > < span class = "line" > 33< / span > < br > < span class = "line" > 34< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "keyword" > package< / span > com.atguigu.common.valid;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > javax.validation.Constraint;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > javax.validation.Payload;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > java.lang.annotation.Documented;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > java.lang.annotation.Retention;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > java.lang.annotation.Target;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > < span class = "keyword" > static< / span > java.lang.annotation.ElementType.*;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > < span class = "keyword" > static< / span > java.lang.annotation.ElementType.TYPE_USE;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > < span class = "keyword" > static< / span > java.lang.annotation.RetentionPolicy.RUNTIME;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @author< / span > Jason Gong< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @version< / span > 1.0< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @Date< / span > 2023/6/15< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @Description< / span > 自定义的校验注解< / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "meta" > @Documented< / span > < / span > < br > < span class = "line" > < span class = "meta" > @Constraint(validatedBy = { } )< / span > < span class = "comment" > //校验注解使用的校验器< / span > < / span > < br > < span class = "line" > < span class = "meta" > @Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE} )< / span > < span class = "comment" > //注解可以标注的位置< / span > < / span > < br > < span class = "line" > < span class = "meta" > @Retention(RUNTIME)< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > < span class = "meta" > @interface< / span > ListValue { < / span > < br > < span class = "line" > < / span > < br > < span class = "line" > String < span class = "title function_" > message< / span > < span class = "params" > ()< / span > < span class = "keyword" > default< / span > < span class = "string" > " { com.atguigu.common.valid.ListValue.message} " < / span > ;< span class = "comment" > //在配置文件中指明< / span > < / span > < br > < span class = "line" > < / span > < br > < span class = "line" > Class< ?> [] groups() < span class = "keyword" > default< / span > { } ;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > Class< ? < span class = "keyword" > extends< / span > < span class = "titl
< p > 编写注解中默认提示消息的配置文件< / p >
< p > < strong > ValidationMessages.properties< / strong > < / p >
< figure class = "highlight properties" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "attr" > com.atguigu.common.valid.ListValue.message< / span > =< span class = "string" > 必须提交指定的值< / span > < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< h4 id = "6-2-编写一个自定义的校验器" > < a href = "#6-2-编写一个自定义的校验器" class = "headerlink" title = "6.2 编写一个自定义的校验器" > < / a > 6.2 编写一个自定义的校验器< / h4 > < figure class = "highlight java" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < span class = "line" > 25< / span > < br > < span class = "line" > 26< / span > < br > < span class = "line" > 27< / span > < br > < span class = "line" > 28< / span > < br > < span class = "line" > 29< / span > < br > < span class = "line" > 30< / span > < br > < span class = "line" > 31< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "keyword" > package< / span > com.atguigu.common.valid;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > javax.validation.ConstraintValidator;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > javax.validation.ConstraintValidatorContext;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > java.util.HashSet;< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > java.util.Set;< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "comment" > /**< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @author< / span > Jason Gong< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @version< / span > 1.0< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @Date< / span > 2023/6/15< / span > < / span > < br > < span class = "line" > < span class = "comment" > * < span class = "doctag" > @Description< / span > 自定义的校验器< / span > < / span > < br > < span class = "line" > < span class = "comment" > */< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > < span class = "keyword" > class< / span > < span class = "title class_" > ListValueConstraintValidator< / span > < span class = "keyword" > implements< / span > < span class = "title class_" > ConstraintValidator< / span > < ListValue,Integer> { < / span > < br > < span class = "line" > < span class = "keyword" > private< / span > Set< Integer> set = < span class = "keyword" > new< / span > < span class = "title class_" > HashSet< / span > < > ();< span class = "comment" > //创建一个set集合 用于存储指定输入的值0和1< / span > < / span > < br > < span class = "line" > < span class = "comment" > //初始化方法< / span > < / span > < br > < span class = "line" > < span class = "meta" > @Override< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > < span class = "keyword" > void< / span > < span class = "title function_" > initialize< / span > < span class = "params" > (ListValue constraintAnnotation)< / span > { < / span > < br > < span class = "line" > < span class = "type" > int< / span > [] vals = constraintAnnotation.vals();< span class = "comment" > //@ListValue(vals = { 0, 1} )< / span > < / span > < br > < span class = "line" > < span class = "keyword" > for< / span > (< span class = "type" > int< / span > val : vals) { < / span > < br > < span class = "line" > set.add(val);< / span > < br > < span class = "line" > } < / span > < br > < span class = "line" > } < / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "comment" > //判断是否校验成功< / span > < / span > < br > < span class = "line" > < span class = "comment" > //value:需要校验的值< / span > < / span > < br > < span class = "line" > < span class = "meta" > @Override< / span > < / span > < br > < span class = "line" > < span class = "keyword" > public< / span > < span class
< h4 id = "6-3-关联自定义的校验器和校验注解" > < a href = "#6-3-关联自定义的校验器和校验注解" class = "headerlink" title = "6.3 关联自定义的校验器和校验注解" > < / a > 6.3 关联自定义的校验器和校验注解< / h4 > < p > 在自定义的注解上面关联上上面自定义的校验规则< / p >
< p > < img src = "/pictures/image-20230615151144311.png" alt = "image-20230615151144311" > < / p >
< p > 测试自定义的注解< / p >
< p > < img src = "/pictures/image-20230615152331597.png" alt = "image-20230615152331597" > < / p >
2024-06-14 22:00:25 +08:00
< / article > < div class = "tag_share" > < div class = "post-meta__tag-list" > < a class = "post-meta__tags" href = "/tags/Java/" > Java< / a > < / div > < div class = "post_share" > < div class = "social-share" data-image = "/img/4.png" data-sites = "wechat,weibo,qq" > < / div > < link rel = "stylesheet" href = "/cdn/css/share.min.css" media = "print" onload = "this.media='all'" > < script src = "/cdn/js/social-share.min.js" defer > < / script > < / div > < / div > < div class = "post-reward" > < div class = "reward-button" > < i class = "fas fa-qrcode" > < / i > 打赏< / div > < div class = "reward-main" > < ul class = "reward-all" > < li class = "reward-item" > < a href = "/img/wechat.jpg" target = "_blank" > < img class = "post-qr-code-img" src = "/img/wechat.jpg" alt = "微信" / > < / a > < div class = "post-qr-code-desc" > 微信< / div > < / li > < li class = "reward-item" > < a href = "/img/alipay.jpg" target = "_blank" > < img class = "post-qr-code-img" src = "/img/alipay.jpg" alt = "支付宝" / > < / a > < div class = "post-qr-code-desc" > 支付宝< / div > < / li > < / ul > < / div > < / div > < br / > < div id = "post-comment" > < div class = "comment-head" > < div class = "comment-headline" > < i class = "far fa-comment-alt fa-fw" > < / i > < span > 评论< / span > < / div > < / div > < div class = "comment-wrap" > < div > < div id = "gitalk-container" > < / div > < / div > < / div > < / div > < / div > < div class = "aside-content" id = "aside-content" > < div class = "card-widget card-info" > < div class = "is-center" > < div class = "avatar-img" > < img src = "/img/avatar.jpg" onerror = "this.onerror=null;this.src='/img/loading.gif'" alt = "avatar" / > < / div > < div class = "author-info__name" > Jason< / div > < div class = "author-info__description" > Debug the World！ < / div > < / div > < div class = "card-info-data site-data is-center" > < a href = "/archives/" > < div class = "headline" > 文章< / div > < div class = "length-num" > 60< / div > < / a > < a href = "/tags/" > < div class = "headline" > 标签< / div > < div class = "length-num" > 39< / div > < / a > < a href = "/categories/" > < div class = "headline" > 分类< / div > < div class = "length-num" > 10< / div > < / a > < / div > < a id = "card-info-btn" > < i class = "fab fa-microsoft" > < / i > < span > Ctrl + D 收藏< / span > < / a > < div class = "card-info-social-icons is-center" > < a class = "social-icon" href = "https://github.com/JasonsGong" target = "_blank" title = "Github" > < i class = "fab fa-github" > < / i > < / a > < a class = "social-icon" href = "tencent://AddContact/?fromId=45&fromSubId=1&subcmd=all&uin=2602183349&website=www.oicqzone.com" target = "_blank" title = "QQ" > < i class = "fab fa-qq" > < / i > < / a > < a class = "social-icon" href = "mailto:2602183349@qq.com" target = "_blank" title = "Email" > < i class = "fas fa-envelope-open-text" > < / i > < / a > < a class = "social-icon" href = "https://github.com/JasonsGong?tab=repositories" target = "_blank" title = "代码仓库" > < i class = "fas fa-database" > < / i > < / a > < / div > < / div > < div class = "card-widget card-announcement" > < div class = "item-headline" > < i class = "fas fa-bullhorn fa-shake" > < / i > < span > 公告< / span > < / div > < div class = "announcement_content" > 本网站是静态网站,更新页面资源请使用Ctrl+F5;若网站内文章对你有帮助,请使用Ctrl+D收藏该网站！ < / div > < / div > < div class = "sticky_layout" > < div class = "card-widget" id = "card-toc" > < div class = "item-headline" > < i class = "fas fa-stream" > < / i > < span > 目录< / span > < span class = "toc-percentage" > < / span > < / div > < div class = "toc-content is-expand" > < ol class = "toc" > < li class = "toc-item toc-level-2" > < a class = "toc-link" href = "#%E4%B8%80-JSR303%E6%95%B0%E6%8D%AE%E6%A0%A1%E9%AA%8C" > < span class = "toc-text" > 一.JSR303数据校验< / span > < / a > < ol class = "toc-child" > < li class = "toc-item toc-level-3" > < a class = "toc-link" href = "#1-%E5%BC%95%E5%85%A5%E4%BE%9D%E8%B5%96" > < span class = "toc-text" > 1.引入依赖< / span > < / a > < / li > < li class = "toc-item toc-level-3" > < a class = "toc-link" href = "#2-%E7%BB%99%E5%AE%9E%E4%BD%93%E7%B1%BB%E6%B7%BB%E5%8A%A0%E6%A0%A1%E9%AA%8C%E6%B3%A8%E8%A7%A3%EF%BC%8C%E5%B9%B6%E5%AE%9A%E4%B9%89%E8%87%AA%E5%B7%B1%E7%9A%84message%E6%8F%90%E7%A4%BA" > < span class = "toc-text" > 2.给实体类添加校验注解， < / span > < / a > < / li > < li class = "toc-item toc-level-3" > < a class = "toc-link" href = "#3-%E5%BC%80%E5%90%AF%E6%A0%A1%E9%AA%8C%E5%8A%9F%E8%83%BD-Valid" > < span class = "toc-text" > 3.开启校验功能@Valid< / span > < / a > < / li > < li class = "toc-item toc-level-3" > < a class = "toc-link" href = "#4-%E4%B8%8A%E9%9D%A2%E7%9A%8
2024-01-13 16:32:52 +08:00
function initGitalk () {
var gitalk = new Gitalk(Object.assign({
clientID: '00fb27b1e484536359c2',
clientSecret: 'be41a12281c68b6e228d1a27e8d08aeb91541145',
repo: 'BlogComment',
owner: 'JasonsGong',
admin: ['JasonsGong'],
id: '05144bb8c6d4bc0349c38e79416e2f6f',
updateCountCallback: commentCount
},null))
gitalk.render('gitalk-container')
}
if (typeof Gitalk === 'function') initGitalk()
else {
2024-01-13 17:50:17 +08:00
getCSS('/cdn/css/gitalk.min.css')
getScript('/cdn/js/gitalk.min.js').then(initGitalk)
2024-01-13 16:32:52 +08:00
}
}
function commentCount(n){
let isCommentCount = document.querySelector('#post-meta .gitalk-comment-count')
if (isCommentCount) {
isCommentCount.textContent= n
}
}
if ('Gitalk' === 'Gitalk' || !true) {
if (true) btf.loadComment(document.getElementById('gitalk-container'), loadGitalk)
else loadGitalk()
} else {
function loadOtherComment () {
loadGitalk()
}
}< / script > < / div > < script async data-pjax src = "//busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js" > < / script > < div id = "local-search" > < div class = "search-dialog" > < nav class = "search-nav" > < span class = "search-dialog-title" > 搜索< / span > < span id = "loading-status" > < / span > < button class = "search-close-button" > < i class = "fas fa-times" > < / i > < / button > < / nav > < div class = "is-center" id = "loading-database" > < i class = "fas fa-spinner fa-pulse" > < / i > < span > 数据库加载中< / span > < / div > < div class = "search-wrap" > < div id = "local-search-input" > < div class = "local-search-box" > < input class = "local-search-box--input" placeholder = "搜索文章" type = "text" / > < / div > < / div > < br / > < div class = "no-result" id = "local-search-results" > < / div > < div id = "local-search-stats-wrap" > < / div > < / div > < / div > < div id = "search-mask" > < / div > < script src = "/js/search/local-search.js" > < / script > < / div > < / div > <!-- hexo injector body_end start --> < script data-pjax >
2023-09-22 21:57:28 +08:00
function butterfly_swiper_injector_config(){
2024-01-13 22:42:28 +08:00
var parent_div_git = document.getElementById('recent-posts');
2024-06-14 22:00:25 +08:00
var item_html = '< div class = "recent-post-item" style = "height: auto;width: 100%" > < div class = "blog-slider swiper-container-fade swiper-container-horizontal" id = "swiper_container" > < div class = "blog-slider__wrp swiper-wrapper" style = "transition-duration: 0ms;" > < div class = "blog-slider__item swiper-slide" style = "width: 750px; opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;" > < a class = "blog-slider__img" href = "posts/19306.html" alt = "" > < img width = "48" height = "48" src = "/img/1.png" alt = "" onerror = "this.src=https://unpkg.zhimg.com/akilar-candyassets/image/loading.gif; this.onerror = null;" / > < / a > < div class = "blog-slider__content" > < span class = "blog-slider__code" > 2023-04-21< / span > < a class = "blog-slider__title" href = "posts/19306.html" alt = "" > Docker容器化技术< / a > < div class = "blog-slider__text" > Docker< / div > < a class = "blog-slider__button" href = "posts/19306.html" alt = "" > 详情 < / a > < / div > < / div > < div class = "blog-slider__item swiper-slide" style = "width: 750px; opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;" > < a class = "blog-slider__img" href = "posts/47003.html" alt = "" > < img width = "48" height = "48" src = "/img/5.png" alt = "" onerror = "this.src=https://unpkg.zhimg.com/akilar-candyassets/image/loading.gif; this.onerror = null;" / > < / a > < div class = "blog-slider__content" > < span class = "blog-slider__code" > 2023-03-10< / span > < a class = "blog-slider__title" href = "posts/47003.html" alt = "" > 常用正则表达式大全< / a > < div class = "blog-slider__text" > 正则表达式< / div > < a class = "blog-slider__button" href = "posts/47003.html" alt = "" > 详情 < / a > < / div > < / div > < div class = "blog-slider__item swiper-slide" style = "width: 750px; opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;" > < a class = "blog-slider__img" href = "posts/20683.html" alt = "" > < img width = "48" height = "48" src = "/img/8.png" alt = "" onerror = "this.src=https://unpkg.zhimg.com/akilar-candyassets/image/loading.gif; this.onerror = null;" / > < / a > < div class = "blog-slider__content" > < span class = "blog-slider__code" > 2023-06-05< / span > < a class = "blog-slider__title" href = "posts/20683.html" alt = "" > Linux中开发环境的搭建< / a > < div class = "blog-slider__text" > 环境搭建< / div > < a class = "blog-slider__button" href = "posts/20683.html" alt = "" > 详情 < / a > < / div > < / div > < div class = "blog-slider__item swiper-slide" style = "width: 750px; opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;" > < a class = "blog-slider__img" href = "posts/63333.html" alt = "" > < img width = "48" height = "48" src = "/img/10.png" alt = "" onerror = "this.src=https://unpkg.zhimg.com/akilar-candyassets/image/loading.gif; this.onerror = null;" / > < / a > < div class = "blog-slider__content" > < span class = "blog-slider__code" > 2023-06-03< / span > < a class = "blog-slider__title" href = "posts/63333.html" alt = "" > 开发环境的搭建< / a > < div class = "blog-slider__text" > 环境搭建< / div > < a class = "blog-slider__button" href = "posts/63333.html" alt = "" > 详情 < / a > < / div > < / div > < / div > < div class = "blog-slider__pagination swiper-pagination-clickable swiper-pagination-bullets" > < / div > < / div > < / div > ';
2024-01-13 22:42:28 +08:00
if (parent_div_git !== null & & typeof parent_div_git !== 'undefined') {
parent_div_git.insertAdjacentHTML("afterbegin",item_html)
}
2023-09-22 21:57:28 +08:00
}
var elist = 'undefined'.split(',');
var cpage = location.pathname;
2023-10-28 10:47:20 +08:00
var epage = 'all';
2023-09-22 21:57:28 +08:00
var flag = 0;
for (var i=0;i< elist.length ; i + + ) {
if (cpage.includes(elist[i])){
flag++;
}
}
if ((epage ==='all')& & (flag == 0)){
butterfly_swiper_injector_config();
}
else if (epage === cpage){
butterfly_swiper_injector_config();
}
2024-01-13 22:10:58 +08:00
< / script > < script defer src = "https://npm.elemecdn.com/hexo-butterfly-swiper/lib/swiper.min.js" > < / script > < script defer data-pjax src = "https://npm.elemecdn.com/hexo-butterfly-swiper/lib/swiper_init.js" > < / script > <!-- hexo injector body_end end --> < / body > < / html >
