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Çë½ÌJava Filter¹ýÂËÆ÷ÖÐÒ³ÃæµÄÌø×ªÎÊÌâ

  ÔÚserveletµÄdoGet()»òdoPost()µ÷ÓÃRequestDispatcherµÄforward(request, response)¶¼Ã»ÓÐÎÊÌ⣬ÔÚ¸ÃÀàÖУ¬µ¯³öÐÅϢҲûÓÐÎÊÌ⣬¾ÍÊDz»Ìø×ªµ½Ö¸¶¨µÄµÇÂ½Ò³Ãæindex.jsp¡£ÏÂÃæÊÇ´úÂëºÍtomcatµÄ´íÎóÐÅÏ¢£ºÇë½Ì¸ßÊÖ£¬Ð»Ð»£¡
  import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

public class OnlineFilter implements Filter
{

public OnlineFilter()
{
}

public void destroy()
{
}

public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException
{
response.setCharacterEncoding("utf-8");//½â¾öÖÐÎÄÂÒÂë

HttpServletRequest req =(HttpServletRequest)request;
HttpSession session =req.getSession(true);
  // HttpServletResponse res = (HttpServletResponse) response;
// ´Ósession ÀïÃæ»ñÈ¡Óû§ÃûµÄÐÅÏ¢
String user =(String)session.getAttribute("loginname");
user=req.getParameter("userId");
if(


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import java.sql.Date;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
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execlÔõôµ÷ÓÃjava³ÌÐò - C/C++ / CÓïÑÔ

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JavaScriptµÄdTreeÎÊÌ⣬ÔÚÏßµÈ - Java / Web ¿ª·¢

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