<!-- 配置验证器 -->

       <bean id="myvalidator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">

           <property name="providerClass" value="org.hibernate.validator.HibernateValidator"></property>

       </bean> 

       <mvc:annotation-driven validator="myvalidator"/>

package cn.happy.entity;

import javax.validation.constraints.Max;

import javax.validation.constraints.Min;

import javax.validation.constraints.NotNull;

import javax.validation.constraints.Pattern;

import javax.validation.constraints.Size;

import org.hibernate.validator.constraints.NotEmpty;

import org.jboss.logging.Message;

public class UserInfo {

     //必须是0到100之间

    @NotNull(message="成绩不能为空")

    @Min(value=0,message="成绩最小值为{value}")

    @Max(value=100,message="成绩最大值为{value}")

    private Integer score;

   //手机号码必须不能为空,必须是以1 开头 第二位3,4,5,6,7,8,9   最后9位随意

    @NotEmpty(message="手机号码不允许为空")

    @Pattern(regexp="^1[3,4,5,6,7,8,9]\\d{9}$",message="手机号码不正确")

  private String phone;

    //不能为空

    //必须是6个字符以上

     @NotEmpty(message="用户名不能为空")

    @Size(min=6,message="名称至少6个字符")

  private String name;

    public Integer getScore() {

        return score;

    }

    public void setScore(Integer score) {

        this.score = score;

    }

    public String getPhone() {

        return phone;

    }

    public void setPhone(String phone) {

        this.phone = phone;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

}

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;

@Controller

public 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");

        }

        return mv ;

    }

}