cangchuvirtualpathfilter.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 CangChuVirtualPathFilter 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("1")){
		    	errorMassage="你没有仓储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);
	  }

}