SpringMVC_入门项目

    本项目是SpringMVC的入门项目，用于演示SpringMVC的项目配置、各层结构，功能较简单

一、Eclipse中创建maven项目

二、pom.xml添加依赖

< dependency >
    < groupId >javax.servlet</ groupId >
    < artifactId >javax.servlet-api</ artifactId >
    < version >3.1.0</ version >
</ dependency >
< dependency >
    < groupId >javax.servlet.jsp</ groupId >
    < artifactId >jsp-api</ artifactId >
    < version >2.2</ version >
</ dependency >

<!--① 依赖的Spring模块类库 -->
< dependency >
    < groupId >org.springframework</ groupId >
    < artifactId >spring-context</ artifactId >
    < version >3.1.1.RELEASE</ version >
</ dependency >
< dependency >
    < groupId >org.springframework</ groupId >
    < artifactId >spring-beans</ artifactId >
    < version >3.1.1.RELEASE</ version >
</ dependency >
< dependency >
    < groupId >org.springframework</ groupId >
    < artifactId >spring-web</ artifactId >
    < version >3.2.3.RELEASE</ version >
</ dependency >
< dependency >
    < groupId >org.springframework</ groupId >
    < artifactId >spring-webmvc</ artifactId >
    < version >3.2.3.RELEASE</ version >
</ dependency >

三、web.config配置文件

<? xml version = "1.0" encoding = "UTF-8" ?>
< web-app version = "2.4" xmlns = "http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    < display-name >SpringMVC</ display-name >

    <!-- Spring应用上下文， 理解层次化的ApplicationContext -->
    < context-param >
        < param-name >contextConfigLocation</ param-name >
        < param-value >/WEB-INF/applicationContext.xml</ param-value >
    </ context-param >
    < listener >
        < listener-class >org.springframework.web.context.ContextLoaderListener</ listener-class >
    </ listener >


    <!-- DispatcherServlet, Spring MVC的核心 -->
    < servlet >
        < servlet-name >mvc-dispatcher</ servlet-name >
        < servlet-class >org.springframework.web.servlet.DispatcherServlet</ servlet-class >
        <!-- DispatcherServlet对应的上下文配置， 默认为/WEB-INF/$servlet-name$-servlet.xml -->
        < init-param >
            < param-name >contextConfigLocation</ param-name >
            < param-value >/WEB-INF/mvc-dispatcher-servlet.xml</ param-value >
        </ init-param >
        < load-on-startup >1</ load-on-startup >
    </ servlet >
    < servlet-mapping >
        < servlet-name >mvc-dispatcher</ servlet-name >
        <!-- mvc-dispatcher拦截所有的请求 -->
        < url-pattern >/</ url-pattern >
    </ servlet-mapping >
</ web-app >

四、添加applicationContext.xml配置文件 
        文件路径对应web.xml中<context-param><param-value>节点值

<? 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"
    xmlns:aop = "http://www.springframework.org/schema/aop" xmlns:tx = "http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-3.1.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-3.1.xsd">

    <!-- 扫描类包，将标注Spring注解的类自动转化Bean，同时完成Bean的注入 -->
    < context:component-scan base-package = "com.james" />
</ beans >

五、添加mvc-dispatcher-servlet.xml配置文件

        文件路径对应web.xml中<servlet><init-param><param-value>节点值

<? 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"
    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 = "com.james" >
        < context:include-filter type = "annotation"
            expression = "org.springframework.stereotype.Controller" />
    </ context:component-scan >

    <!-- 扩充了注解驱动，可以将请求参数绑定到控制器参数 -->
    < mvc:annotation-driven />

    <!-- 静态资源处理， css， js， imgs -->
    < mvc:resources mapping = "/resources/**" location = "/resources/" />

    <!-- /WEB-INF/views/ 对应jsp文件路径 -->
    < bean
        class = "org.springframework.web.servlet.view.InternalResourceViewResolver" >
        < property name = "viewClass"
            value = "org.springframework.web.servlet.view.JstlView" />
        < property name = "prefix" value = "/WEB-INF/views/" />
        < property name = "suffix" value = ".jsp" />
    </ bean >
</ beans >

六、添加web、service、dao层及类

        1、HelloController.java  包自定义

package com.web.controller;

import javax.servlet.http.HttpSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.james.service.HelloService;

@Controller
@RequestMapping ( "/hello" )
public class HelloController {

    @Autowired
    private HelloService service;

    @RequestMapping ( "/mvc" )
    public String helloMvc(HttpSession httpSession) {

        System.out.println( "进入：HelloController-->helloMvc" );
        this .service.helloMvc();

        // 视图渲染，/WEB-INF/views/home.jsp
        return "home" ;
    }
}

        2、HelloService.java

package com.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.dao.HelloDao;

@Service
public class HelloService {

    @Autowired
    private HelloDao dao;

    public void helloMvc() {
        System.out.println( "进入：HelloService-->helloMvc" );

        this .dao.helloMvc();
    }
}

        3、HelloDao.java

package com.dao;

import org.springframework.stereotype.Repository;

@Repository
public class HelloDao {
    public void helloMvc() {
        System.out.println( "进入：HelloDao-->helloMvc" );

        System.out.println( "进入：HelloDao-->helloMvc2" );
    }
}

七、利用jetty启动mvc并查看输出

来自为知笔记(Wiz)

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