spring3.1.1 Getting explain two (comment article)

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In the first blog is mainly explained how to build and run the sample project framework spring; simplify the development in this article mainly on how to use the notes the way!

First, prepare papers ready -jar package

Not described in detail here on refer to a blog entry --spring3.1.1 explain a (non-annotated chapter) to prepare papers explain in

Second, the environment to build articles

1, added to the web.xml configuration file to keep up with a configuration code as a direct copy in the past on the line.

2, the configuration spring-mvc.xml, the focus is here

Key configuration is as follows:

1), if we use as a non-annotated way to create and access controller controller, we need to add the following configuration file in a spring-mvc.xml

<span style="white-space:pre">	</span><bean name="/hello" class="com.spring.mvc.HelloWorldController"/>  <span style="font-family: Arial, Helvetica, sans-serif;">

2), so if we annotate the way you create and control access controller, we do not need to configure it spring-mvc.xml bean; however need to add the following configuration spring-mvc.xml:

<!-- 在com.spring.mvc包下寻找控制器组件 -->    
    <context:component-scan base-package="com.spring.mvc"></context:component-scan>

The role of the above configuration is to allow spring to automatically scan com.spring.mvc package following controller class (of course, when we create @Controller controller also need to add annotations to mark).

3. Create a package in the src com.spring.mvc below, then add the controller class: HelloWorldAnnocationController.java

package com.spring.mvc;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

/**
 * 页面控制器
 * 
 * @version 1.0 2015-02-11 下午05:39:25
 */
//使用注解@Controller声明该类是一个控制器     
@Controller
@RequestMapping(value="helloWorldAnnocationController")
public class HelloWorldAnnocationController{
	 //使用注解@RequestMapping声明这个控制器处理index.html的请求     
	  @RequestMapping("/hello")
	  public ModelAndView helloAnotherWorld( final HttpServletRequest request){   
		  ModelAndView mv = new ModelAndView();
	        // 添加模型数据，可以是任意的POJO对象
	        mv.addObject("message", "Hello World!");
	        // 设置逻辑视图名，视图解析器会根据该名字解析到具体的视图页面，然后就自动从WebContent/view/下面查找hello.jsp视图页面
	        mv.setViewName("hello");
	    //将model的数据交给文件名为helloSpringMVC，后缀名为vm（在applicationContext.xml里面设置）的文件显示     
	    return mv;    
	  }
}

4, add the following hello.jsp page view / directory

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!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>Insert title here</title>
    </head>
    <body>
        ${message}
    </body>
</html>

5, annotated version of the controller Access Controller:

Reproduced in: https: //my.oschina.net/mapsh/blog/598142

spring3.1.1 Getting explain two (comment article)

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