borrowbookcontrolpro.java

简单的图书馆管理系统

package com.controller;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Vector;

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;

import com.common.DBaccess.BorrowBookProcess;

public class BorrowBookControlPro extends HttpServlet
{
	public BorrowBookControlPro()
	{
		
	}
	
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}
	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException
	{
		doPost(request,response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException
	{
		
		if(request.getParameter("name")!=null)
		{
			if(request.getParameter("name").equals("query2"))
			{
				request.setCharacterEncoding("gb2312");
				
				request.setAttribute("title","借阅历史");
				request.setAttribute("URL","/view/BorrowBook.jsp");
				
				RequestDispatcher dis=this.getServletContext().getRequestDispatcher("/index.jsp");
				dis.forward(request,response);
			}
			if(request.getParameter("name").equals("query"))
			{
				String incept=request.getParameter("textfield");
				String stop=request.getParameter("textfield2");
				System.out.println("sadsafsafsaf");
				Vector v=new Vector();
				System.out.println(stop);
				HttpSession session=request.getSession();
				System.out.println(session);
				ArrayList al=(ArrayList)session.getAttribute("userInfo");
				System.out.println(session);
				String id=(String)al.get(0);
				log(id);
				BorrowBookProcess bbp=new BorrowBookProcess();
				v=bbp.getQueryDate(incept,stop,id);
				request.setAttribute("history",v);
				
				request.setAttribute("title","借阅历史");
				request.setAttribute("URL","/view/BorrowBook.jsp");
				
				RequestDispatcher disd=this.getServletContext().getRequestDispatcher("/index.jsp");
				disd.forward(request,response);		
			}
		}
		
	}

}