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