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ʵÏÖjavax.servlet.Filter½Ó¿Ú
FilterClass.java
1 import javax.servlet.*;
2 import javax.servlet.http.HttpServletResponse;
3
4 import java.io.*;
5 /**
6  * ¹ýÂËËùÓÐ ¡¸*.jsp¡¹µÄÇëÇó
7  * ͨ¹ýʵÏÖservletÖеÄFilter½Ó¿Ú
8  */
9 public class FilterClass implements Filter {
10
11     public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
12             FilterChain chain) throws IOException, ServletException {
13         // Sample---ËùÓеÄ*.jspµÄÇëÇó£¬Ìø×ªµ½Action
14         HttpServletResponse response = (HttpServletResponse) servletResponse;
15         response.sendRedirect("login.action");
16     }
17
18     public void destroy() {
19         // TODO Auto-generated method stub
20        
21     }
22
23     public void init(FilterConfig arg0) throws ServletException {
24         // TODO Auto-generated method stub
25        
26     }
27 }
ÔÚweb.xmlÅäÖÃÎļþÖУ¬Ìí¼ÓFilter¹ýÂË
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<filter>
    <filter-name>sample</filter-name>
    <filter-class>test.FilterClass</filter-class&


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