验证码js可以获取到但后台获取不到
来源:4-13 前后端联调验证整体模块功能
小丶冬瓜
2018-01-30
js代码总我输出了varifyCodeActual是可以获取到验证码的输入内容的,图一中verifyCodeActual获取的值控制台输出为null,然后转到HttpServletRequestUtil类getString方法中,控制台打印result也为null,请问一下这是哪里出的问题?
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2回答
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以下是翔仔没问题的代码,请同学对比下:)
spring-web.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"> <!-- 配置SpringMVC --> <!-- 1.开启SpringMVC注解模式 --> <mvc:annotation-driven /> <!-- 2.静态资源默认servlet配置 (1)加入对静态资源的处理:js,gif,png (2)允许使用"/"做整体映射 --> <mvc:resources mapping="/resources/**" location="/resources/" /> <mvc:default-servlet-handler /> <!-- 3.定义视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/html/"></property> <property name="suffix" value=".html"></property> </bean> <!-- 文件上传解析器 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="utf-8"></property> <!-- 1024 * 1024 * 20 = 20M --> <property name="maxUploadSize" value="20971520"></property> <property name="maxInMemorySize" value="20971520"></property> </bean> <!-- 4.扫描web相关的bean --> <context:component-scan base-package="com.imooc.o2o.web" /> </beans>
shopoperation.js
/** * */ $(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(); } }); }); })
controller对应的方法
@RequestMapping(value = "/registershop", method = RequestMethod.POST) @ResponseBody private Map<String, Object> registerShop(HttpServletRequest request) { Map<String, Object> modelMap = new HashMap<String, Object>(); if (!CodeUtil.checkVerifyCode(request)) { modelMap.put("success", false); modelMap.put("errMsg", "输入了错误的验证码"); return modelMap; } // 1.接收并转化相应的参数,包括店铺信息以及图片信息 String shopStr = HttpServletRequestUtil.getString(request, "shopStr"); ObjectMapper mapper = new ObjectMapper(); Shop shop = null; try { shop = mapper.readValue(shopStr, Shop.class); } catch (Exception e) { modelMap.put("success", false); modelMap.put("errMsg", e.getMessage()); return modelMap; } CommonsMultipartFile shopImg = null; CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver( request.getSession().getServletContext()); if (commonsMultipartResolver.isMultipart(request)) { MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest) request; shopImg = (CommonsMultipartFile) multipartHttpServletRequest.getFile("shopImg"); } else { modelMap.put("success", false); modelMap.put("errMsg", "上传图片不能为空"); return modelMap; } // 2.注册店铺 if (shop != null && shopImg != null) { PersonInfo owner = (PersonInfo) request.getSession().getAttribute("user"); shop.setOwner(owner); ShopExecution se; try { ImageHolder imageHolder = new ImageHolder(shopImg.getOriginalFilename(), shopImg.getInputStream()); se = shopService.addShop(shop, imageHolder); if (se.getState() == ShopStateEnum.CHECK.getState()) { modelMap.put("success", true); // 该用户可以操作的店铺列表 @SuppressWarnings("unchecked") List<Shop> shopList = (List<Shop>) request.getSession().getAttribute("shopList"); if (shopList == null || shopList.size() == 0) { shopList = new ArrayList<Shop>(); } shopList.add(se.getShop()); request.getSession().setAttribute("shopList", shopList); } else { modelMap.put("success", false); modelMap.put("errMsg", se.getStateInfo()); } } catch (ShopOperationException e) { modelMap.put("success", false); modelMap.put("errMsg", e.getMessage()); } catch (IOException e) { modelMap.put("success", false); modelMap.put("errMsg", e.getMessage()); } return modelMap; } else { modelMap.put("success", false); modelMap.put("errMsg", "请输入店铺信息"); return modelMap; } }
请仔细核对,改了之后记得清缓存
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翔仔
2018-01-30
除了验证码,请问别的formData里的值是否能获取得到,如果可以,那么同学的varifyCodeActual这个key是否写对?并且它是怎么在前端塞入formData里的
PS:单词varifyCodeActual拼写错啦,verifyCodeActual才对 :)
032018-01-30
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