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AllFilter.java
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44 lines (35 loc) · 1.33 KB
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package com.filter;
import java.io.IOException;
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 AllFilter implements Filter {
private FilterConfig fc;
public void destroy() {
this.fc=null;
}
public void doFilter(ServletRequest sRequest, ServletResponse sResponse,FilterChain chain) throws IOException, ServletException {
HttpServletRequest request=(HttpServletRequest)sRequest;
HttpSession session=request.getSession();
Boolean mark=(Boolean)session.getAttribute("activation");
request.setCharacterEncoding("gb2312");
if(mark!=null&&mark)
chain.doFilter(sRequest,sResponse);
else{
String message="<li>对不起，您已经与服务器断开！请<a href='goIndex'>【重新访问】</a></li>";
request.setAttribute("message",message);
String forward=fc.getServletContext().getInitParameter("messagePage");
RequestDispatcher rd=request.getRequestDispatcher(forward);
rd.forward(sRequest,sResponse);
}
}
public void init(FilterConfig fc) throws ServletException {
this.fc=fc;
}
}