SpringMvc后台校验实现
第一步:meven添加依赖包，也可自行下载，注意jboss.logging与hibernate-validator的版本要能对应上：
<dependency>
<groupId>org.hibernategroupId>
<artifactId>hibernate-validatorartifactId>
<version>4.3.1.Finalversion>
dependency>
<dependency>
<groupId>javax.validationgroupId>
<artifactId>validation-apiartifactId>
<version>1.0.0.GAversion>
dependency>
<dependency>
<groupId>org.jboss.logginggroupId>
<artifactId>jboss-loggingartifactId>
<version>3.1.0.CR2version>
dependency> 第二步:在配置文件中添加校验的bean配置
<bean id="validator"
class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
<property name="providerClass" value="org.hibernate.validator.HibernateValidator" />
<property name="validationMessageSource" ref="messageSource" />
bean>
<bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basenames">
<list>
<value>classpath:CustomValidationMessagesvalue>
list>
property>
<property name="fileEncodings" value="UTF-8" />
<property name="defaultEncoding" value="UTF-8"/>
<property name="cacheSeconds" value="120" />
bean> 这里注意
第三步:新建错误信息配置文件，如我这里是CustomValidationMessages.properties，配置文件如下：
#校验错误信息的配置文件
marketing.jgdm.error=机构代码不能为空
marketing.yyrq.error=预约日期不能为空第四步:在Pojo类中配置校验规则，如下所示，更多校验如@NotNull、@Null、@Max等可自行网上查阅
@Size(min=1,message="{marketing.jgdm.error}")
private String jgdm; //机构代码第五步:Controller中使用该校验
@RequestMapping(value="/insertDepositMarketing.action",method={RequestMethod.POST,RequestMethod.GET})
public String insertDepositMarketing(@Validated DepositMarketing depositMarketing,BindingResult bindingResult
,Model model) throws Exception{
List allErrors = bindingResult.getAllErrors();
if(bindingResult.hasErrors()){
for(ObjectError error : allErrors){
System.out.println(error.getDefaultMessage());
}
model.addAttribute("allErrors",allErrors);
return "fail";
}
int yybh = depositMarketingService.insertDepositMarketing(depositMarketing);
if(yybh > 0){
//插入成功
return "forward:queryDepositMarketing.action";
}else{
return "fail";
}
} 使用@Validated对Po类进行校验，并用BindingResult接收校验
第六步:页面输出错误信息
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'MyJsp.jsp' starting pagetitle>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
head>
<body>
<c:if test="${allErrors!= null}">
<c:forEach items="${allErrors}" var="item">
${item.defaultMessage}
c:forEach>
c:if>
<center> 操作居然失败了，真遗憾！center><br>
body>
html>
分组校验
第一步:新建一个校验分组接口，如下：
public interface MarketingValidationGroup {
}这个接口仅仅是标志校验分组
第二步:在Pojo类中给不同的校验规则划分分组，如下：
//将次校验划到校验分组:MarketingValidationGroup中去
@Size(min=1,message="{marketing.jgdm.error}",groups=MarketingValidationGroup.class)第散步步:在Controller中使用校验分组，如下：
public String insertDepositMarketing(@Validated(value={MarketingValidationGroup.class}) DepositMarketing depositMarketing,BindingResult bindingResult
,Model model) throws Exception{
//代码省略
}