若报表应用设置了权限，则需要将如下代码：

package com.fr;

import java.io.IOException;

import java.io.PrintStream;

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.HttpSession;

public class filter implements Filter

{

public void doFilter(ServletRequest req, ServletResponse res, FilterChain filterChain)

throws IOException, ServletException

{

HttpServletRequest re = (HttpServletRequest)req;

HttpSession session = re.getSession(false);

//获取session中保留的信息

String user = (String)session.getAttribute("edu.yale.its.tp.cas.client.filter.user");

re.getSession().setAttribute("fr_username", user);

re.getSession().setAttribute("fr_password", user);

filterChain.doFilter(req, res);

System.out.println("sds");

}

public void init(FilterConfig filterconfig)

throws ServletException

{

}

public void destroy()

{

}

}