returnbookbean.java

本系统完成简单的图书管理系统

/***********************************************************************
*                          湖南大学图书管理系统
* @author Administrator                                                         
* @since 2008.06                                                  
* @version 1.0                                                           															  
* @category 还书处理bean
*************************************************************************/

package library.control;

import java.io.IOException;
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 library.DBaccess.BorrowedBookDB;
import library.DBaccess.ReturnDB;

public class ReturnBookBean extends HttpServlet{

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		req.setCharacterEncoding("gb2312");
		if (req.getParameter("name").equals("returnbook")) {
			System.out.println("归还图书");
			req.setAttribute("title", "归还图书");
			req.setAttribute("URL", "//manager/view/returnBook.jsp");
			RequestDispatcher dis = this.getServletContext()
					.getRequestDispatcher("/manager/index.jsp");
			dis.forward(req, resp);
		}
		super.doGet(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		if (req.getParameter("name").equals("return")) {
		String username = req.getParameter("username");
		String isbn = req.getParameter("isbn");
		ReturnDB rdb= new ReturnDB(); 
		rdb.ReturnBook(isbn, username);
		req.setAttribute("title", "归还图书");
		req.setAttribute("URL", "//manager/view/returnsuc.jsp");
		RequestDispatcher dis = this.getServletContext()
				.getRequestDispatcher("/manager/index.jsp");
		dis.forward(req, resp);
		}
		// TODO Auto-generated method stub
		super.doPost(req, resp);
	}

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		super.destroy();
	}

	@Override
	public void init() throws ServletException {
		// TODO Auto-generated method stub
		super.init();
	}

	public ReturnBookBean() {
		// TODO Auto-generated constructor stub
		super();
	}

}