?? passedcheck.java
字號(hào):
package com.x3408.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.x3408.office.Constants;
public class PassedCheck implements Filter {
public void destroy() {
// TODO Auto-generated method stub
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest httpRequest=(HttpServletRequest) request;
HttpServletResponse httpResponse=(HttpServletResponse) response;
HttpSession session=httpRequest.getSession();
String passed=(String) session.getAttribute("passed");
if (passed==null){
httpRequest.setAttribute("passed", "wrong");
StringBuffer requestURL=httpRequest.getRequestURL();
String query=httpRequest.getQueryString();
requestURL.append(query==null?"":"?"+query);
session.setAttribute("originalURL",requestURL.toString());
httpRequest.getRequestDispatcher(Constants.S_LOGIN_JSP).forward(httpRequest,httpResponse);
}else{
chain.doFilter(httpRequest,httpResponse);
}
}
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
}
}
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