1 package sanglp.servlet;
2
3 import javax.servlet.*;
4 import javax.servlet.annotation.WebListener;
5 import javax.servlet.http.HttpServletRequest;
6
7 /**
8 * Created by Administrator on 2016/10/5.
9 */
10 @WebListener
11 public class RequestListener implements ServletRequestListener,ServletRequestAttributeListener {
12
13 //用户请求到底，被初始化时触发该方法
14 @Override
15 public void requestInitialized(ServletRequestEvent servletRequestEvent) {
16 HttpServletRequest request=(HttpServletRequest)servletRequestEvent.getServletRequest();
17 System.out.println("发向"+request.getRequestURI()+"请求被初始化");
18 }
19 //用户请求到底，被销毁时触发该方法
20 @Override
21 public void requestDestroyed(ServletRequestEvent servletRequestEvent) {
22 HttpServletRequest request=(HttpServletRequest)servletRequestEvent.getServletRequest();
23 System.out.println("发向"+request.getRequestURI()+"请求被销毁");
24
25 }
26
27 @Override
28 public void attributeAdded(ServletRequestAttributeEvent servletRequestAttributeEvent) {
29 ServletContext application=servletRequestAttributeEvent.getServletContext();
30 //获取添加的属性名和属性值
31 String name=servletRequestAttributeEvent.getName();
32 Object value=servletRequestAttributeEvent.getValue();
33 System.out.println(application+"范围内添加了"+name+"值为"+value+"的属性");
34
35 }
36
37 @Override
38 public void attributeRemoved(ServletRequestAttributeEvent servletRequestAttributeEvent) {
39 ServletContext application=servletRequestAttributeEvent.getServletContext();
40 //获取添加的属性名和属性值
41 String name=servletRequestAttributeEvent.getName();
42 Object value=servletRequestAttributeEvent.getValue();
43 System.out.println(application+"范围内删除了"+name+"值为"+value+"的属性");
44 }
45
46 @Override
47 public void attributeReplaced(ServletRequestAttributeEvent servletRequestAttributeEvent) {
48 ServletContext application=servletRequestAttributeEvent.getServletContext();
49 //获取添加的属性名和属性值
50 String name=servletRequestAttributeEvent.getName();
51 Object value=servletRequestAttributeEvent.getValue();
52 System.out.println(application+"范围内替换了"+name+"值为"+value+"的属性");
53 }
54 }
