由于Validation框架通过硬编码完成数据校验，在实际开发中会显得比较麻烦，因此现代开发更加推荐使用JSR303完成数据校验。

JSR303是java为bean数据合法性校验锁提供的一个标准规范，叫做Bean Validation。它是一个运行时的数据验证框架，在验证之后验证的错误信息会被马上返回。

JSR303是一个规范，它的核心接口是javax.validation.Validator,该接口根据目标对象类中所标注的校验注解进行数据校验，并得到校验结果。

目前有两个实现，第一个是Hibernate Validator(下载地址http://hibernate.org/validator/)，第二个Apache bval

 

package com.domain;import java.io.Serializable;import java.util.Date;import javax.validation.constraints.Pattern;import org.hibernate.validator.constraints.Email;import org.hibernate.validator.constraints.Length;import org.hibernate.validator.constraints.NotBlank;import org.hibernate.validator.constraints.Range;import org.springframework.format.annotation.DateTimeFormat;public class User implements Serializable{        @NotBlank(message="NotBlank.user.loginname")    private String loginname;    @NotBlank(message="NotBlank.user.password")    @Length(min=6,max=8,message="Length.user.password")    private String password;    @NotBlank(message="NotBlank.user.username")    private String username;    @Email(message="Email.user.youxiang")    private String youxiang;    @Range(min=15,max=60,message="Range.user.nianling")    private String nianling;    //日期使用注解方式转换    @DateTimeFormat(pattern="yyyy-MM-dd")    private Date shengri;    @Pattern(regexp="[1],[3,8],[3,6,9][0-9]{8}",message="Patter.user.dianhua")    private String dianhua;    public String getLoginname() {        return loginname;    }    public void setLoginname(String loginname) {        this.loginname = loginname;    }    public String getPassword() {        return password;    }    public void setPassword(String password) {        this.password = password;    }    public String getUsername() {        return username;    }    public void setUsername(String username) {        this.username = username;    }    public String getYouxiang() {        return youxiang;    }    public void setYouxiang(String youxiang) {        this.youxiang = youxiang;    }    public String getNianling() {        return nianling;    }    public void setNianling(String nianling) {        this.nianling = nianling;    }    public Date getShengri() {        return shengri;    }    public void setShengri(Date shengri) {        this.shengri = shengri;    }    public String getDianhua() {        return dianhua;    }    public void setDianhua(String dianhua) {        this.dianhua = dianhua;    }        }

package com.controller;import javax.validation.Valid;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.validation.Errors;import org.springframework.web.bind.annotation.ModelAttribute;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import com.domain.User;@Controllerpublic class UserController {    @RequestMapping(value="/{formName}")    public String loginForm(@PathVariable String formName,Model model)    {        User user = new User();        model.addAttribute("user", user);        return formName;     }        //使用@Valid注解对提交的数据进行校验    @RequestMapping(value="/login",method=RequestMethod.POST)    public String login(@Valid @ModelAttribute User user,Errors errors,Model model)    {        if(errors.hasErrors())        {            return "registerForm";        }        return "success";    }    }

             
      
                   
        
                         
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        /WEB-INF/content/
                   
                  
                      
       
        .jsp