第一次进入页面，验证码显示不正确
来源：4-13 前后端联调验证整体模块功能
qq_颜控狗_0
2018-04-21
只有第一次进入界面时，验证码显示和Session值不匹配
如图，界面值为c8fb，而Session值却是geax。
怀疑是第一次进入界面后Session值又更新了一次，而图片没有更改。
因为我重新做了一个Controller验证后端的问题，
并没有出现上述状况
写回答
6回答
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同学由于你提供的信息不充足，我这边没办法帮你判断，只能说我这边是没有问题的，别的同学也是没有问题的，同学这块不知道为什么会重刷了一遍，请检查你js代码，记得清理下浏览器缓存
/** * */ $(function() { // 从URL里获取shopId参数的值 var shopId = getQueryString('shopId'); // 由于店铺注册和编辑使用的是同一个页面， // 该标识符用来标明本次是添加还是编辑操作 var isEdit = shopId ? true : false; // 用于店铺注册时候的店铺类别以及区域列表的初始化的URL var initUrl = '/o2o/shopadmin/getshopinitinfo'; // 注册店铺的URL var registerShopUrl = '/o2o/shopadmin/registershop'; // 编辑店铺前需要获取店铺信息，这里为获取当前店铺信息的URL var shopInfoUrl = "/o2o/shopadmin/getshopbyid?shopId=" + shopId; // 编辑店铺信息的URL var editShopUrl = '/o2o/shopadmin/modifyshop'; // 判断是编辑操作还是注册操作 if (!isEdit) { getShopInitInfo(); } else { getShopInfo(shopId); } // 通过店铺Id获取店铺信息 function getShopInfo(shopId) { $.getJSON(shopInfoUrl, function(data) { if (data.success) { // 若访问成功，则依据后台传递过来的店铺信息为表单元素赋值 var shop = data.shop; $('#shop-name').val(shop.shopName); $('#shop-addr').val(shop.shopAddr); $('#shop-phone').val(shop.phone); $('#shop-desc').val(shop.shopDesc); // 给店铺类别选定原先的店铺类别值 var shopCategory = '<option data-id="' + shop.shopCategory.shopCategoryId + '" selected>' + shop.shopCategory.shopCategoryName + '</option>'; var tempAreaHtml = ''; // 初始化区域列表 data.areaList.map(function(item, index) { tempAreaHtml += '<option data-id="' + item.areaId + '">' + item.areaName + '</option>'; }); $('#shop-category').html(shopCategory); // 不允许选择店铺类别 $('#shop-category').attr('disabled', 'disabled'); $('#area').html(tempAreaHtml); // 给店铺选定原先的所属的区域 $("#area option[data-id='" + shop.area.areaId + "']").attr( "selected", "selected"); } }); } // 取得所有二级店铺类别以及区域信息，并分别赋值进类别列表以及区域列表 function getShopInitInfo() { $.getJSON(initUrl, function(data) { if (data.success) { var tempHtml = ''; var tempAreaHtml = ''; data.shopCategoryList.map(function(item, index) { tempHtml += '<option data-id="' + item.shopCategoryId + '">' + item.shopCategoryName + '</option>'; }); data.areaList.map(function(item, index) { tempAreaHtml += '<option data-id="' + item.areaId + '">' + item.areaName + '</option>'; }); $('#shop-category').html(tempHtml); $('#area').html(tempAreaHtml); } }); } // 提交按钮的事件响应，分别对店铺注册和编辑操作做不同响应 $('#submit').click(function() { // 创建shop对象 var shop = {}; if (isEdit) { // 若属于编辑，则给shopId赋值 shop.shopId = shopId; } // 获取表单里的数据并填充进对应的店铺属性中 shop.shopName = $('#shop-name').val(); shop.shopAddr = $('#shop-addr').val(); shop.phone = $('#shop-phone').val(); shop.shopDesc = $('#shop-desc').val(); // 选择选定好的店铺类别 shop.shopCategory = { shopCategoryId : $('#shop-category').find('option').not(function() { return !this.selected; }).data('id') }; // 选择选定好的区域信息 shop.area = { areaId : $('#area').find('option').not(function() { return !this.selected; }).data('id') }; // 获取上传的图片文件流 var shopImg = $('#shop-img')[0].files[0]; // 生成表单对象，用于接收参数并传递给后台 var formData = new FormData(); // 添加图片流进表单对象里 formData.append('shopImg', shopImg); // 将shop json对象转成字符流保存至表单对象key为shopStr的的键值对里 formData.append('shopStr', JSON.stringify(shop)); // 获取表单里输入的验证码 var verifyCodeActual = $('#j_captcha').val(); if (!verifyCodeActual) { $.toast('请输入验证码！'); return; } formData.append('verifyCodeActual', verifyCodeActual); // 将数据提交至后台处理相关操作 $.ajax({ url : (isEdit ? editShopUrl : registerShopUrl), type : 'POST', data : formData, contentType : false, processData : false, cache : false, success : function(data) { if (data.success) { $.toast('提交成功！'); if (!isEdit) { // 若为注册操作，成功后返回店铺列表页 window.location.href = "/o2o/shopadmin/shoplist"; } } else { $.toast('提交失败！' + data.errMsg); } // 点击验证码图片的时候，注册码会改变 $('#captcha_img').click(); } }); }); })062018-04-23 -
qq_颜控狗_0
提问者
2018-04-23
第一次进入页面，Kaptcha图像文件和页面值 不一致，而右侧才是对应Session值的图片
072018-04-24 -
翔仔
2018-04-23
我这边chrome和ie都没问题，应该还是哪里设置错了，可以对比web.xml代码
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1" metadata-complete="true"> <display-name>Archetype Created Web Application</display-name> <welcome-file-list> <welcome-file>aaa.jsp</welcome-file> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>Kaptcha</servlet-name> <servlet-class>com.google.code.kaptcha.servlet.KaptchaServlet</servlet-class> <!-- 是否有边框 --> <init-param> <param-name>kaptcha.border</param-name> <param-value>no</param-value> </init-param> <!-- 字体颜色 --> <init-param> <param-name>kaptcha.textproducer.font.color</param-name> <param-value>red</param-value> </init-param> <!-- 图片宽度 --> <init-param> <param-name>kaptcha.image.width</param-name> <param-value>135</param-value> </init-param> <!-- 使用哪些字符生成验证码 --> <init-param> <param-name>kaptcha.textproducer.char.string</param-name> <param-value>ACDEFHKPRSTWX345679</param-value> </init-param> <!-- 图片高度 --> <init-param> <param-name>kaptcha.image.height</param-name> <param-value>50</param-value> </init-param> <!-- 字体大小 --> <init-param> <param-name>kaptcha.textproducer.font.size</param-name> <param-value>43</param-value> </init-param> <!-- 干扰线的颜色 --> <init-param> <param-name>kaptcha.noise.color</param-name> <param-value>black</param-value> </init-param> <!-- 字符个数 --> <init-param> <param-name>kaptcha.textproducer.char.length</param-name> <param-value>4</param-value> </init-param> <!-- 字体 --> <init-param> <param-name>kaptcha.textproducer.font.names</param-name> <param-value>Arial</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>Kaptcha</servlet-name> <url-pattern>/Kaptcha</url-pattern> </servlet-mapping> <servlet> <servlet-name>spring-dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/spring-*.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>spring-dispatcher</servlet-name> <!-- 默认匹配所有的请求 --> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
也可以用之前说的办法规避
012018-04-23 -
翔仔
2018-04-23
<script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "//hm.baidu.com/hm.js?ba76f8230db5f616edc89ce066670710"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script>请问这段代码是干嘛的。。 同学你要不先直接复制我的
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>SUI Mobile Demo</title> <meta name="description" content="MSUI: Build mobile apps with simple HTML, CSS, and JS components."> <meta name="author" content="阿里巴巴国际UED前端"> <meta name="viewport" content="initial-scale=1, maximum-scale=1"> <link rel="shortcut icon" href="/favicon.ico"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <meta name="format-detection" content="telephone=no"> <!-- Google Web Fonts --> <link rel="stylesheet" href="//g.alicdn.com/msui/sm/0.6.2/css/sm.min.css"> <link rel="stylesheet" href="//g.alicdn.com/msui/sm/0.6.2/css/sm-extend.min.css"> <link rel="apple-touch-icon-precomposed" href="/assets/img/apple-touch-icon-114x114.png"> </head> <body> <div class="page-group"> <div id="page-label-input" class="page"> <header class="bar bar-nav"> <a class="button button-link button-nav pull-left back" href="/demos/form"> <span class="icon icon-left"></span> 返回 </a> <h1 class="title">商店信息</h1> </header> <div class="content"> <div class="list-block"> <ul> <!-- Text inputs --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">商铺名称</div> <div class="item-input"> <input type="text" id="shop-name" placeholder="商铺名称"> </div> </div> </div> </li> <!-- 商铺分类 下拉列表 --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">商铺分类</div> <div class="item-input"> <select id="shop-category"> </select> </div> </div> </div> </li> <!-- 区域分类 下拉列表 --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">所属区域</div> <div class="item-input"> <select id="area"> </select> </div> </div> </div> </li> <!-- 详细地址 text --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">详细地址</div> <div class="item-input"> <input type="text" id="shop-addr" placeholder="详细地址"> </div> </div> </div> </li> <!-- 联系电话 text --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">联系电话</div> <div class="item-input"> <input type="text" id="shop-phone" placeholder="联系电话"> </div> </div> </div> </li> <!-- 缩略图 上传控件 --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">缩略图</div> <div class="item-input"> <input type="file" id="shop-img"> </div> </div> </div> </li> <!-- 店铺简介 textarea --> <li class="align-top"> <div class="item-content"> <div class="item-inner"> <div class="item-title label">店铺简介</div> <div class="item-input"> <textarea id="shop-desc" placeholder="店铺简介"></textarea> </div> </div> </div> </li> <!-- 验证码 ka --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">验证码</div> <input type="text" id="j_captcha" placeholder="验证码"> <div class="item-input"> <img id="captcha_img" alt="点击更换" title="点击更换" onclick="changeVerifyCode(this)" src="../Kaptcha" /> </div> </div> </div> </li> </ul> </div> <div class="content-block"> <div class="row"> <div class="col-50"> <a href="/o2o/shopadmin/shopmanagement" class="button button-big button-fill button-danger">返回</a> </div> <div class="col-50"> <a href="#" class="button button-big button-fill button-success" id="submit">提交</a> </div> </div> </div> </div> </div> </div> <script type='text/javascript' src='//g.alicdn.com/sj/lib/zepto/zepto.min.js' charset='utf-8'></script> <script type='text/javascript' src='//g.alicdn.com/msui/sm/0.6.2/js/sm.min.js' charset='utf-8'></script> <script type='text/javascript' src='//g.alicdn.com/msui/sm/0.6.2/js/sm-extend.min.js' charset='utf-8'></script> <script type='text/javascript' src='../resources/js/common/common.js' charset='utf-8'></script> <script type='text/javascript' src='../resources/js/shop/shopoperation.js' charset='utf-8'></script> </body> </html>
022018-04-23 -
qq_颜控狗_0
提问者
2018-04-23
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>店铺信息</title> <meta name="description" content="MSUI: Build mobile apps with simple HTML, CSS, and JS components."> <meta name="author" content="阿里巴巴国际UED前端"> <meta name="viewport" content="initial-scale=1, maximum-scale=1"> <link rel="shortcut icon" href="/favicon.ico"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <meta name="format-detection" content="telephone=no"> <!-- Google Web Fonts --> <link rel="stylesheet" href="//g.alicdn.com/msui/sm/0.6.2/css/sm.min.css"> <link rel="stylesheet" href="//g.alicdn.com/msui/sm/0.6.2/css/sm-extend.min.css"> <script> //ga </script> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "//hm.baidu.com/hm.js?ba76f8230db5f616edc89ce066670710"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script> </head> <body> <div class="page-group"> <div id="page-label-input" class="page"> <header class="bar bar-nav"> <a class="button button-link button-nav pull-left back" href="/demos/form"> <span class="icon icon-left"></span> 返回 </a> <h1 class="title">商家注册</h1> </header> <div class="content"> <div class="list-block"> <ul> <!-- 店铺名称 --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">店铺名称</div> <div class="item-input"> <input type="text" placeholder="店铺名称" id="shop-name"> </div> </div> </div> </li> <!-- 店铺分类 --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">店铺分类</div> <div class="item-input"> <select id="shop-category"> </select> </div> </div> </div> </li> <!-- 区域 --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">所在区域</div> <div class="item-input"> <select id="area"> </select> </div> </div> </div> </li> <!-- 详细地址 --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">详细地址</div> <div class="item-input"> <input type="text" placeholder="详细地址" id="shop-addr"> </div> </div> </div> </li> <!-- 联系电话 --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">联系电话</div> <div class="item-input"> <input type="text" placeholder="联系电话" id="shop-phone"> </div> </div> </div> </li> <!-- 缩略图 --> <li> <div class="item-content"> <div class="item-inner"> <div class="item-title label">店铺logo</div> <div class="item-input"> <input type="file" id="shop-img"> </div> </div> </div> </li> <!-- 店铺简介 --> <li class="align-top"> <div class="item-content"> <div class="item-inner"> <div class="item-title label">店铺简介</div> <div class="item-input"> <textarea placeholder="店铺简介" id="shop-desc"></textarea> </div> </div> </div> </li> <!-- 验证码 --> <li class="align-top"> <div class="item-content"> <div class="item-inner"> <div class="item-title label">验证码</div> <input type="text" placeholder="请输入验证码" id="kaptcha_input" /> <div class="item-input"> <img alt="点击更换" title="点击更换" id="captcha_img" onclick="changeVerifyCode(this)" src="../Kaptcha"/> </div> </div> </div> </li> </ul> </div> <div class="content-block"> <div class="row"> <div class="col-50"> <a href="#" class="button button-big button-fill button-danger">返回</a> </div> <div class="col-50"> <a href="#" class="button button-big button-fill button-success" id="submit">提交</a> </div> </div> </div> </div> </div> </div> <script type='text/javascript' src='//g.alicdn.com/sj/lib/zepto/zepto.min.js' charset='utf-8'></script> <script type='text/javascript' src='//g.alicdn.com/msui/sm/0.6.2/js/sm.min.js' charset='utf-8'></script> <script type='text/javascript' src='//g.alicdn.com/msui/sm/0.6.2/js/sm-extend.min.js' charset='utf-8'></script> <script type='text/javascript' src='../resources/js/shop/shopoperation.js' charset='utf-8'></script> <script type='text/javascript' src='../resources/js/common/common.js' charset='utf-8'></script> </body> </html>00 -
qq_颜控狗_0
提问者
2018-04-23
/** * */ $(function(){ var initUrl = '/o2o/shopadmin/getshopinitinfo'; var registerShopUrl = '/o2o/shopadmin/shopregister'; getShopInitInfo(); function getShopInitInfo(){ $.getJSON(initUrl, function(data){ if(data.success){ var tempHtml = ''; var tempAreaHtml = ''; data.shopCategoryList.map(function(item, index){ tempHtml += '<option data-id="' + item.shopCategoryId + '">' + item.shopCategoryName + '</option>'; }); data.areaList.map(function(item, index){ tempAreaHtml += '<option data-id="' + item.areaId + '">' + item.areaName + '</option>'; }); $('#shop-category').html(tempHtml); $('#area').html(tempAreaHtml); } }); $('#submit').click(function(){ var shop = {}; shop.shopName = $('#shop-name').val(); shop.shopAddr = $('#shop-addr').val(); shop.shopPhone = $('#shop-phone').val(); shop.shopDesc = $('#shop-desc').val(); shop.shopCategory = { shopCategoryId : $('#shop-category').find('option').not(function(){ return !this.selected; }).data('id') }; shop.area = { areaId : $('#area').find('option').not(function(){ return !this.selected; }).data('id') }; var shopImg = $('#shop-img')[0].files[0]; var formData = new FormData(); formData.append('shopImg', shopImg); formData.append('shopStr', JSON.stringify(shop)); var verifyCodeInput = $('#kaptcha_input').val(); if(!verifyCodeInput){ $.toast("请输入验证码！"); return; } formData.append('verifyCodeInput', verifyCodeInput); $.ajax({ url : registerShopUrl, type : 'POST', data : formData, contentType : false, processData : false, cache : false, success : function(data){ if(data.success){ $.toast('提交成功'); }else { $.toast('提交失败:'+data.errorMsg); console.error(data.errorMsg); } $('#captcha_img').click(); } }); }); } })00
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