1、需要导入的jar包:

slf4j-api-1.7.21.jar

validation-api-1.0.0.GA.jar

hibernate-validator-4.0.1.GA.jar

 

 

2、访问页面编码：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%>                               
数据校验
    
     
                       成绩:
       
      ${scoremsg }
      
      
                 姓名:
      
      ${namemsg }
      
      
               电话:
      
      ${phonemsg }
      
      
       
          
     
  

3、applicationContext.xml

4、controller控制器

package cn.happy.controller;import javax.validation.Valid;import org.springframework.stereotype.Controller;import org.springframework.validation.BindingResult;import org.springframework.validation.FieldError;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.servlet.ModelAndView;import cn.happy.entity.UserInfo;@Controllerpublic class FirstController {    @RequestMapping("/first.do")    public ModelAndView doFirst(@Valid UserInfo info,BindingResult br){        ModelAndView mv=new ModelAndView();        mv.setViewName("/WELCOME.jsp");        //记录到底是哪个字段验证失败了        //有一个可以侦测到验证错误总数的方法        int errorCount = br.getErrorCount();        if (errorCount>0) {            //证明模型验证失败            FieldError score = br.getFieldError("score");            FieldError name = br.getFieldError("name");            FieldError phone = br.getFieldError("phone");            if (score!=null) {                mv.addObject("scoremsg",score.getDefaultMessage());            }                        if (name!=null) {                mv.addObject("namemsg",name.getDefaultMessage());            }                        if (phone!=null) {                mv.addObject("phonemsg",phone.getDefaultMessage());            }            mv.setViewName("/index.jsp");        }                //高中  英文版的吻别        return mv ;    }}