exitsystemservlet.java

该系统具体分为2个部分：前台和后台。 1．前台主要用于用户进行浏览和搜索

package ynuServlet;


import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;


public class ExitSystemServlet extends HttpServlet {
	public void init()throws ServletException
    {
    	
    }
    
    public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
    	HttpSession session = request.getSession();
    	//清空所有session
    	//session.removeAttribute("userName");
    	session.removeAttribute("username");
    	session.removeAttribute("errInf");
    	session.removeAttribute("PesticideList");
    	session.removeAttribute("OrderList");
    	session.invalidate();
    	
    	String toJsp="/index.jsp";
    	RequestDispatcher dispatcher = request.getRequestDispatcher(toJsp);	
    	//dispatcher = request.getRequestDispatcher(toJsp);   	
    	response.setHeader("Refresh", "0.1; URL=/PesticideInfoManagement"+toJsp+"");
    	dispatcher.forward(request, response);
    }       
    
    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
        doGet(request, response);
    }
}