Spring MVC中使用WebBindingInitializer注册全局自定义编辑器转换数据

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我是靠谱客的博主悲凉柜子，最近开发中收集的这篇文章主要介绍Spring MVC中使用WebBindingInitializer注册全局自定义编辑器转换数据，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

一领域模型

package org.fkit.domain;

import java.io.Serializable;
import java.util.Date;


public class User implements Serializable{

    private static final long serialVersionUID = 1L;
    
    private String loginname;
    private Date birthday;

    public User() {
        super();
        // TODO Auto-generated constructor stub
    }

    public String getLoginname() {
        return loginname;
    }

    public void setLoginname(String loginname) {
        this.loginname = loginname;
    }

    public Date getBirthday() {
        return birthday;
    }

    public void setBirthday(Date birthday) {
        this.birthday = birthday;
    }

    @Override
    public String toString() {
        return "User [loginname=" + loginname + ", birthday=" + birthday + "]";
    }

    
    
}

二自定义属性编辑器

package org.fkit.converter;

import java.beans.PropertyEditorSupport;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;


// 自定义属性编辑器
public class DateEditor extends PropertyEditorSupport {

    // 将传如的字符串数据转换成Date类型
    @Override
    public void setAsText(String text) throws IllegalArgumentException {
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        try {
            Date date = dateFormat.parse(text);
            setValue(date);
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }
    
}

三注册自定义编辑器

package org.fkjava.binding;

import java.util.Date;
import org.fkit.converter.DateEditor;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.support.WebBindingInitializer;



// 实现WebBindingInitializer接口
public class DateBindingInitializer implements WebBindingInitializer {

    @Override
    public void initBinder(WebDataBinder binder) {
        // 注册自定义编辑器
        binder.registerCustomEditor(Date.class, new DateEditor());
        
    }

}

四控制器

package org.fkit.controller;

import org.fkit.domain.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;


/**
*  HelloWorldController是一个基于注解的控制器,
*  可以同时处理多个请求动作，并且无须实现任何接口。
*  org.springframework.stereotype.Controller注解用于指示该类是一个控制器
*/
@Controller
public class UserController{
     
    @GetMapping(value="/registerForm")
     public String registerForm(){
        // 跳转到注册页面
        return "registerForm";
    }
     
     @PostMapping(value="/register")
     public String register(
             @ModelAttribute User user,
             Model model) {
         System.out.println(user);
         model.addAttribute("user", user);
         return "success";
     }

}

五配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
     xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans
         http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd     
        http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context.xsd">
        
    <!-- spring可以自动去扫描base-pack下面的包或者子包下面的java文件，
      如果扫描到有Spring的相关注解的类，则把这些类注册为Spring的bean  -->
    <context:component-scan base-package="org.fkit.controller"/>
    <!-- 视图解析器  p:prefix属性表示前缀  p:suffix 表示后缀  -->
     <bean id="viewResolver"
           class="org.springframework.web.servlet.view.InternalResourceViewResolver"
          p:prefix="/WEB-INF/content/" p:suffix=".jsp"/>
    
    <!-- 通过RequestMappingHandlerAdapter装配自定义编辑器 -->
    <bean
           class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
           <property name="webBindingInitializer">
                <bean  class="org.fkjava.binding.DateBindingInitializer" />
           </property>
     </bean>
     
</beans>

六视图

1 registerForm.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"  "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;  charset=UTF-8">
<title>测试WebBindingInitializer</title>
</head>
<body>
<h3>测试WebBindingInitializer</h3>
<form action="register" method="post">
     <table>
         <tr>
            <td><label>登录名: </label></td>
             <td><input type="text" id="loginname"  name="loginname" ></td>
         </tr>
          <tr>
            <td><label>生日: </label></td>
             <td><input type="text" id="birthday" name="birthday"  ></td>
         </tr>
         <tr>
             <td><input id="submit" type="submit" value="登录"></td>
         </tr>
     </table>
</form>
</body>
</html>

2 success.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"  "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;  charset=UTF-8">
<title>测试WebBindingInitializer</title>
</head>
<body>
登录名：${requestScope.user.loginname }
生日：<fmt:formatDate value="${requestScope.user.birthday}"
     pattern="yyyy年MM月dd日"/>
</body>
</html>

七测试