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package com.filter;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
public class WordsFilter implements Filter {
              
               private Map< String, String>map = new HashMap< String, String>();
               // ¹ýÂËÆ÷µÄ³õʼ»¯
               public void init(FilterConfig config) throws ServletException {
                               String filePath = config.getInitParameter("filePath");
                               // ´ÓÅäÖÃÎļþÖÐÈ¡µÃÎļþµÄÏà¶Ô·¾¶
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<table width=100% border="0" align="center" cellpadding="0"
 cellspacing="0">
 <tr>
  <td height="1" class="gray1"></td>
 </tr>
</table>
<tiles:insert attribute="footer" />
</body>
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        v512_servlet+jsp
01 ÔÚÐÞ¸ÄÍêCookieºó,Ò»¶¨Òª¼ÓÉÏresponse.addCookie(c);
   CookieÖÐÖ»Äܱ£´æ×Öĸ»òÊý×ÖÐÅÏ¢;
02 req.getSession()Óëreq.getSession(boolean create)
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