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spring mvc 数据转换

项目目录结构

User.java

package org.mythsky.springmvcdemo.model;

import org.springframework.format.annotation.DateTimeFormat;

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

public class User implements Serializable {
    private String loginname;

    private Date birthday;

    public User() {
        super();
    }

    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;
    }
}

View Code

DateEditor.java

package org.mythsky.springmvcdemo.converter;

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

public class DateEditor extends PropertyEditorSupport {
    public void setAsText(String text) throws java.lang.IllegalArgumentException {
        try{
            SimpleDateFormat dateFormat=new SimpleDateFormat("yyyy-MM-dd");
            Date date=dateFormat.parse(text);
            setValue(date);
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }
}

View Code

UserController.java

package org.mythsky.springmvcdemo.controller;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.mythsky.springmvcdemo.converter.DateEditor;
import org.mythsky.springmvcdemo.model.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.*;

import java.util.Date;

@Controller
public class UserController {
    private static final Log logger= LogFactory.getLog(UserController.class);
    @InitBinder
    public void initBinder(WebDataBinder binder){
        binder.registerCustomEditor(Date.class,new DateEditor());
    }
    @RequestMapping(value = "/{formName}")
    public String loginForm(@PathVariable String formName){
        return formName;
    }
    @RequestMapping(value = "/register",method = RequestMethod.POST)
    public String register(@ModelAttribute User user,Model model){
        logger.info(user);
        model.addAttribute("user",user);
        return "success";
    }
}

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registerForm.jsp

<%--
  Created by IntelliJ IDEA.
  User: mythsky
  Date: 2017/11/21
  Time: 22:31
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>注册</title>
</head>
<body>
<h3>注册页面</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 type="submit" value="登录"></td></tr>
    </table>
</form>
</body>
</html>

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success.jsp

<%--
  Created by IntelliJ IDEA.
  User: mythsky
  Date: 2017/11/21
  Time: 22:39
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>登录成功</title>
</head>
<body>
登录名：${requestScope.user.loginname}<br>
生日：${requestScope.user.birthday}<br>
</body>
</html>

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web.xml

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/services.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

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services.xml

<?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:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <context:component-scan base-package="org.mythsky.springmvcdemo"></context:component-scan>
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>
</beans>

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pom.xml

<dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.0.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>5.0.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.0.1.RELEASE</version>
        </dependency>
    </dependencies>

View Code

运行结果

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原文地址：https://www.cnblogs.com/uptothesky/p/7876045.html