spring MVC JSR303校验

pom.xml:

<!--jsr 303 验证-->    <dependency>      <groupId>org.hibernate</groupId>      <artifactId>hibernate-validator</artifactId>      <version>5.4.1.Final</version>    </dependency>

springmvc.xml:

 <!-- 装配自定义的类型转换器 -->      <mvc:annotation-driven conversion-service="conversionService"/>      <!-- 自定义的类型转换器 -->      <bean id="conversionService"            class="org.springframework.context.support.ConversionServiceFactoryBean">            <property name="converters">                  <list>                        <bean class="util.StringToDate"                              p:datePattern="yyyy-MM-dd"></bean>                  </list>            </property>      </bean>

pojo:

package model;import org.hibernate.validator.constraints.Email;import org.hibernate.validator.constraints.Length;import org.hibernate.validator.constraints.NotBlank;import org.springframework.format.annotation.DateTimeFormat;import javax.validation.constraints.Pattern;import java.io.Serializable;import java.util.Date;public class User implements Serializable{    @NotBlank(message = "登录名不能为空")    private String loginName;    @NotBlank(message = "密码不能为空")    @Length(min=6,max = 8,message = "密码在6到8之间")    private String password;    private String userName;    @DateTimeFormat(pattern = "yyyy-MM-dd")    private Date birthday;    @Pattern(regexp = "[1][3,5-8][3,6,9][0-9]{8}",message = "无效电话")    private String tel;    @Email(message = "必须是合法的邮箱")    private String email;    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 Date getBirthday() {        return birthday;    }    public void setBirthday(Date birthday) {        this.birthday = birthday;    }    public String getTel() {        return tel;    }    public void setTel(String tel) {        this.tel = tel;    }    public String getEmail() {        return email;    }    public void setEmail(String email) {        this.email = email;    }    public void setUserName(String userName){        this.userName = userName;    }    public User(){}    public User(String loginName , String password , String userName){        this.password = password;        this.loginName = loginName;        this.userName = userName;    }    public User(String loginName , String password , String userName,Date birthday){        this.password = password;        this.loginName = loginName;        this.userName = userName;        this.birthday = birthday;    }    public User(String loginName,String password,String userName , Date birthday ,String tel , String email){        this.loginName = loginName;        this.password = password;        this.userName = userName;        this.birthday = birthday;        this.tel = tel;        this.email = email;    }}

自定义转换器：

package util;import org.springframework.core.convert.converter.Converter;import java.text.SimpleDateFormat;import java.util.Date;public class StringToDate  implements Converter<String,Date>{    private String datePattern;    public void setDatePattern(String datePattern){        this.datePattern = datePattern;    }    //实现Converter后必须实现的方法    public Date convert(String date) {        try{            SimpleDateFormat simpleDateFormat =  new SimpleDateFormat(this.datePattern);            return simpleDateFormat.parse(date);        }catch (Exception e){            e.printStackTrace();            return null;        }    }}

控制层：

package controller;import model.User;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.validation.Errors;import org.springframework.web.bind.annotation.*;import javax.validation.Valid;@Controllerpublic class UserController {    @RequestMapping(value="/{formName}")    public String loginForm(            @PathVariable String formName,            Model model){        User user = new User();        model.addAttribute("user",user); //在request中一定要有user        // 动态跳转页面        return formName;    }    // 数据校验使用@Valid，后面跟着Errors对象保存校验信息    @RequestMapping(value="/login",method=RequestMethod.POST)    public String login(            @Valid @ModelAttribute  User user,            Errors  errors,            Model model) {        if(errors.hasErrors()){            return "registForm";        }        model.addAttribute("user", user);        return "successValid";    }}

成功页面：

<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %><%--  Created by IntelliJ IDEA.  User: Administrator  Date: 2017/12/19 0019  Time: 19:51  To change this template use File | Settings | File Templates.--%><%@ page contentType="text/html;charset=UTF-8" language="java" %><html><head>    <title>JSR303测试</title></head><body><h3>JSR303测试</h3>登录名：${requestScope.user.loginName}<br>密码：${requestScope.user.password}<br>邮箱：${requestScope.user.email}<br>手机：${requestScope.user.tel}<br>生日：<fmt:formatDate value="${requestScope.user.birthday}" pattern="yyyy年MM月dd日"></fmt:formatDate><br></body></html>