deletebookbean.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 删除图书处理bean
*************************************************************************/
package library.control;

import java.io.IOException;
import java.sql.Date;
import java.util.ArrayList;

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.DeleteBookDB;

public class DeleteBookBean extends HttpServlet{

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		if(req.getParameter("name").equals("deletebook"))
		{

			System.out.println("图书删除");
			req.setAttribute("title","图书删除");
			req.setAttribute("URL","//manager/view/deleteBook.jsp");
			RequestDispatcher dis=this.getServletContext().getRequestDispatcher("/manager/index.jsp");
			dis.forward(req,resp);
		}
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		req.setCharacterEncoding("gb2312");
		HttpSession session=req.getSession();
		
		if(req.getParameter("name").equals("delete"))
		{
			DeleteBookDB dbdb = new DeleteBookDB();
			
			String isbn = req.getParameter("isbn");
			dbdb.DeleteBook(isbn);
			
			ArrayList al=new ArrayList();
			al.add("删除成功!");
			session.setAttribute("delmsg",al);
			
			req.setAttribute("title","图书删除");
			req.setAttribute("URL","//manager/view/deleteBook.jsp");
			
			RequestDispatcher dis=this.getServletContext().getRequestDispatcher("//manager/index.jsp");
			dis.forward(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 DeleteBookBean() {
		// TODO Auto-generated constructor stub
		super();
	}

}