bookservlet.java~2~

通过jsp,servlet,javaBean,三成架构实现的好友通讯录系统

package com.servelet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.entity.*;
import com.Dao.bookDao;

public class BookServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
       doPost(request, response);

    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
         response.setContentType(CONTENT_TYPE);
      int bookId=Integer.parseInt(request.getParameter("BookId"));
      int result=0;
      bookDao bookdao=new bookDao();
      result=bookdao.delBookById(bookId);
      if(result==1)
      {
          request.getRequestDispatcher("selectservlet").forward(request,response);
      }
      else
      {
          request.getRequestDispatcher("err.jsp").forward(request,response);
      }
    }

    //Clean up resources
    public void destroy() {
    }
}