Spring MVC 例子

最新推荐文章于 2024-11-30 20:48:36 发布

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最新推荐文章于 2024-11-30 20:48:36 发布

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原文链接：http://www.cnblogs.com/kaifamengmeng/archive/2013/03/13/2957863.html

本文介绍了一个使用Spring MVC框架实现的简单示例应用，包括用户注册和登录功能。该应用涉及的关键组件有appctx.xml配置文件、UserController控制器、User实体类和服务层实现UserService。

一些重要的代码：

appctx.xml

<?xml version="1.0" encoding="UTF-8"?>

<! DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd" >
< beans >
< bean id ="userService" class ="com.service.UserService" >
</ bean >

</ beans >

UserController.java

package com.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.domain.User;
import com.service.UserService;

@Controller
@RequestMapping( " /user " )
public class UserController{
    @Autowired
     private UserService userService;


    @RequestMapping( " /register " )
     public ModelAndView createUser(User user){
        userService.register(user);

        ModelAndView mav = new ModelAndView();

        mav.setViewName( " registerOk " );
        mav.addObject(user);

         return mav;
    }

    @RequestMapping( " /login " )
     public ModelAndView login(User user){
        userService.login(user);

        ModelAndView mav = new ModelAndView();

        mav.setViewName( " loginOk " );
        mav.addObject(user);

         return mav;
    }
}

User.java

package com.domain;

public class User{
     private String userName;

     private String userPswd;

     public String getUserName() {
         return userName;
    }
     public void setUserName(String userName) {
         this .userName = userName;
    }
     public String getUserPswd() {
         return userPswd;
    }
     public void setUserPswd(String userPswd) {
         this .userPswd = userPswd;
    }
}

UserService.java

package com.service;

import com.domain.User;

public class UserService{
     public boolean login(User user){
         return true ;
    }

     public boolean register(User user){
         return true ;
    }
}

spring-servlet.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:p ="http://www.springframework.org/schema/p"
    xmlns:context ="http://www.springframework.org/schema/context"
    xsi:schemaLocation ="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd" >

     < context:annotation-config />

     
     < context:component-scan base-package ="com.controller" />

     
     < bean class ="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

     
     < bean
         class ="org.springframework.web.servlet.view.InternalResourceViewResolver"
        p:prefix ="/" p:suffix =".jsp" />

     < bean id ="multipartResolver"
        class ="org.springframework.web.multipart.commons.CommonsMultipartResolver"
        p:defaultEncoding ="utf-8" />
</ beans >

web.xml

<?xml version="1.0" encoding="UTF-8"?>

< web-app version ="2.5" xmlns ="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation ="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" >
     < display-name > SpringMVCSample01 </ display-name >

     < welcome-file-list >
         < welcome-file > index.jsp </ welcome-file >
     </ welcome-file-list >

     < context-param >
         < param-name > contextConfigLocation </ param-name >
         < param-value > classpath:appctx.xml </ param-value >
     </ context-param >
     < listener >
         < listener-class > org.springframework.web.context.ContextLoaderListener </ listener-class >
     </ listener >

     < servlet >
         < servlet-name > spring </ servlet-name >
         < servlet-class > org.springframework.web.servlet.DispatcherServlet </ servlet-class >
         < load-on-startup > 1 </ load-on-startup >
     </ servlet >
     < servlet-mapping >
         < servlet-name > spring </ servlet-name >
         < url-pattern > *.html </ url-pattern >
     </ servlet-mapping >
</ web-app >

login.jsp

<% @ page contentType = " text/html; charset=UTF-8 " %>
<% @ taglib uri = " http://java.sun.com/jsp/jstl/core " prefix = " c " %>

<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" >
< html >
     < head >
         < title > 登录页面 </ title >
     </ head >

     < body >
        登录 < br />
         < form method ="post" action ="<c:url value=" /user/login.html" /> ">
             < input type ="text" name ="userName" />< br />
             < input type ="password" name ="userPswd" />< br />
             < input type ="submit" name ="提交" >
         </ form >
     </ body >
</ html >

loginOk.jsp