SpringMvc Servlet 继承结构

Servlet 的继承结构



web.xml  代码：

  <servlet>

  <servlet-name>test</servlet-name>

  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

  <load-on-startup>1</load-on-startup>

  </servlet>

  

  <servlet-mapping>

  <servlet-name>test</servlet-name>

  <url-pattern>/</url-pattern>

  </servlet-mapping>

springmvc 配置文件：

<?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-4.0.xsd 

     http://www.springframework.org/schema/context 

     http://www.springframework.org/schema/context/spring-context-4.0.xsd

     http://www.springframework.org/schema/mvc 

     http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">   

    <mvc:annotation-driven />

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

</beans>

测试类：

package com.Controller;

import org.springframework.context.EnvironmentAware;

import org.springframework.core.env.Environment;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.ResponseBody;

@Controller

public class TestController implements EnvironmentAware{

@RequestMapping("/test")
@ResponseBody
public String test(){
return "test";
}

private Environment environment ;

@Override
public void setEnvironment(Environment environment) {

  this.environment = environment;
}
 

}

依赖jar 包：



debug 启动项目：



ServletContextPropertySource  中保存的就是 ServletContext