xiaoshoujsppagefilter.java

自己写的一个java购销系统

package com.yuanjin.mtgx.action.filter;

import java.io.IOException;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.yuanjin.mtgx.entity.YongHu;

public class XiaoShouJspPageFilter extends HttpFilter{
	
	  public void doFilter(HttpServletRequest request,
              HttpServletResponse response,
                    FilterChain chain)throws ServletException, IOException{
		  String errorMassage=null;
		  HttpSession session = request.getSession(false);
		  YongHu yh=(YongHu) session.getAttribute("yongHu");
		  if(yh == null){
			  errorMassage="您还未登陆！";
		      request.setAttribute("errorMassage", errorMassage);
		      request.getRequestDispatcher("/JSP-PAGE/errorpage.jsp").forward(request,response);
		      return;
		  }else if(!yh.getCzqx().equals("2")){
		      errorMassage="你没有销售管理这一模块的使用权限！";
		      request.setAttribute("errorMassage", errorMassage);
		      request.getRequestDispatcher("/JSP-PAGE/errorpage.jsp").forward(request,response);
		      return;
		  }
		  chain.doFilter(request, response);
	  }
}