Servlet--获取Session对象

   

    

     

      

     
     

      

       package servlet08;
      
     
    

     

      

     
     

      
 
      
     
    

     

      

     
     

      

       import java.io.IOException;
      
     
    

     

      

     
     

      

       import java.io.PrintWriter;
      
     
    

     

      

     
     

      
 
      
     
    

     

      

     
     

      

       import javax.servlet.ServletException;
      
     
    

     

      

     
     

      

       import javax.servlet.http.HttpServlet;
      
     
    

     

      

     
     

      

       import javax.servlet.http.HttpServletRequest;
      
     
    

     

      

     
     

      

       import javax.servlet.http.HttpServletResponse;
      
     
    

     

      

     
     

      

       import javax.servlet.http.HttpSession;
      
     
    

     

      

     
     

      
 
      
     
    

     

      

     
     

      

       public class SessionServlet extends HttpServlet {
      
     
    

     

      

     
     

      
 
      
     
    

     

      

     
     

      
	
      
     
    

     

      

     
     

      
	public void doGet(HttpServletRequest request, HttpServletResponse response)
      
     
    

     

      

     
     

      
			throws ServletException, IOException {
      
     
    

     

      

     
     

      
 
      
     
    

     

      

     
     

      

       		response.setContentType("text/html;charset=UTF-8");
      
     
    

     

      

     
     

      
		PrintWriter out = response.getWriter();
      
     
    

     

      

     
     

      
		// 获取session对象
      
     
    

     

      

     
     

      
		HttpSession  session = request.getSession();
      
     
    

     

      

     
     

      

       		System.out.println("-----session内存地址："+session+"<br/>");
      
     
    

     

      

     
     

      

       		System.out.println("-----sessionID为："+session.getId());
      
     
    

     

      

     
     

      

       	}
      
     
    

     

      

     
     

      
 
      
     
    

     

      

     
     

      
	
      
     
    

     

      

     
     

      
	
      
     
    

     

      

     
     

      

       }
      
     
   
  

   

    

     

      

     
     

      

       <?xml version="1.0" encoding="UTF-8"?>
      
     
    

     

      

     
     

      

       <web-app version="3.0"
      
     
    

     

      

     
     

      
    xmlns="http://java.sun.com/xml/ns/javaee"
      
     
    

     

      

     
     

      
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      
     
    

     

      

     
     

      
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
      
     
    

     

      

     
     

      
  <servlet>
      
     
    

     

      

     
     

      
    <description>This is the description of my J2EE component</description>
      
     
    

     

      

     
     

      
    <display-name>This is the display name of my J2EE component</display-name>
      
     
    

     

      

     
     

      
    <servlet-name>SessionServlet</servlet-name>
      
     
    

     

      

     
     

      
    <servlet-class>servlet08.SessionServlet</servlet-class>
      
     
    

     

      

     
     

      
  </servlet>
      
     
    

     

      

     
     

      
 
      
     
    

     

      

     
     

      
  <servlet-mapping>
      
     
    

     

      

     
     

      
    <servlet-name>SessionServlet</servlet-name>
      
     
    

     

      

     
     

      
    <url-pattern>/sessionservlet</url-pattern>
      
     
    

     

      

     
     

      
  </servlet-mapping>
      
     
    

     

      

     
     

      
 
      
     
    

     

      

     
     

      

       </web-app>