springmvc+spring搭建简记

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本文介绍了一个基于SpringMVC的项目结构配置，并通过具体示例展示了如何配置Spring IOC容器、DispatcherServlet以及相关的组件扫描等内容。同时，还提供了一个简单的控制器类与业务逻辑类的实现，帮助读者理解SpringMVC的工作流程。

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项目结构：

web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>WebApp</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
   
   
   <!-- 配置启动 Spring IOC 容器的 Listener -->  
    <!-- needed for ContextLoaderListener -->  
    <context-param>  
        <param-name>contextConfigLocation</param-name>  
        <param-value>classpath:spring.xml</param-value>  
    </context-param>  
  
    <!-- Bootstraps the root web application context before servlet initialization -->  
    <listener>  
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
    </listener>
    
    
    <!-- springmvc配置 -->
   <servlet>
      <servlet-name>springmvc</servlet-name>
      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
      <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc-servlet.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>

springmvc配置文件 springmvc-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: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-4.3.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">                    

    <!-- scan the package and the sub package -->
    <context:component-scan base-package="xyz.jangle.action"/>

    <!-- don't handle the static resource -->
    <mvc:default-servlet-handler />

    <!-- if you use annotation you must configure following setting -->
    <mvc:annotation-driven />
    
    <!-- configure the InternalResourceViewResolver -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" 
            id="internalResourceViewResolver">
        <!-- 前缀 -->
        <property name="prefix" value="/WEB-INF/jsp/" />
        <!-- 后缀 -->
        <property name="suffix" value=".jsp" />
        
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />  
    </bean>
    
    
</beans>

spring配置文件：spring.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"  
        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-4.3.xsd">  
      
        <context:component-scan base-package="xyz.jangle.service">  
            <context:exclude-filter type="annotation"   
                expression="org.springframework.stereotype.Controller"/>  
            <context:exclude-filter type="annotation"   
                expression="org.springframework.web.bind.annotation.ControllerAdvice"/>  
        </context:component-scan>  
      
        <!-- 配置数据源, 整合其他框架, 事务等. -->  
      
    </beans>

控制器类，MvcController.java :

package xyz.jangle.action;

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

import xyz.jangle.service.UserService;

@Controller
@RequestMapping("/mvc")
public class MvcController {
	
	@Autowired
	private UserService userService;
	
	@RequestMapping("/hello")
	public String hello(){
		
		System.out.println("hello,哇塞，我被执行到了");
		
		return userService.getUser();
	}

}

业务类接口，UserService.java :

package xyz.jangle.service;

public interface UserService {
	public String getUser();

}

业务类实现，UserServiceImpl.java :

package xyz.jangle.service.impl;

import org.springframework.stereotype.Service;

import xyz.jangle.service.UserService;

@Service
public class UserServiceImpl implements UserService {

	@Override
	public String getUser() {
		
		System.out.println("UserServiceImpl Method.");
		return "hello";
	}

}

首页页面 index.html:

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
hi,boy.
</body>
</html>

WEB-INF下建立jsp文件夹并建立hello.jsp文件：

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
 hello,I'm helloJsp.
</body>
</html>

编译部署到服务器（如：tomcat），访问：

http://127.0.0.1:8080/mvc/hello 访问spring-mvc 映射的jsp页面。

http://127.0.0.1:8080/ 访问主页。

项目下载地址：

https://download.youkuaiyun.com/download/bof_jangle/10479303