readerinfocontrollepro.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.Hashtable;
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.ReaderInfo;

public class ReaderInfoControllePro extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ReaderInfoControllePro() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @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 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 {
		
			request.setCharacterEncoding("gb2312");
			if(request.getParameter("name").equals("ReaderInfo"))
			{
				ArrayList al=null;
				HttpSession session=request.getSession();
				al=(ArrayList)session.getAttribute("userInfo");
				String ReaderID=(String)al.get(0);
				ReaderInfo ri=new ReaderInfo();
				Hashtable hs1=null;
				hs1=ri.getReaderInfo(ReaderID);
				System.out.println(ReaderID);
				request.setAttribute("ReaderInfo",hs1);
				
				
				request.setAttribute("title","读者信息");
				request.setAttribute("URL","/view/ReaderInfo.jsp");
				RequestDispatcher dis=this.getServletContext().getRequestDispatcher("/index.jsp");
				dis.forward(request,response);	
			}
			if(request.getParameter("name").equals("updatePassword"))
			{
				String zjh=request.getParameter("zjh");
				String userName=request.getParameter("userName");
				String userPassword=request.getParameter("userPassword");
				
				ReaderInfo ri=new ReaderInfo();
				int i=ri.getUserPassword(userPassword,userName,zjh);
				if(i>0)
				{
					RequestDispatcher dis=this.getServletContext().getRequestDispatcher("/ReaderInfoControllePro?name=ReaderInfo");
					dis.forward(request,response);	
				}
				else
				{
					request.setAttribute("error","用户修改错误！");
					request.setAttribute("title","读者信息");
					request.setAttribute("URL","/error/error.jsp");
					RequestDispatcher dis=this.getServletContext().getRequestDispatcher("/index.jsp");
					dis.forward(request,response);	
				}
			}
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		
		// Put your code here
	}

}