admindeleteservlet.java

网上购书系统！jsp+servlet+jdbc实现！数据库sqlserver2

package myservlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import beans.BookInfoBean;
import serives.AdminerServer;

public class AdminDeleteServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";
    BookInfoBean bean = new BookInfoBean();
    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        request.setCharacterEncoding("GBK");
        bean.setNum(request.getParameter("booknum"));
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        if (AdminerServer.isSelectBookNum(bean)) {
            AdminerServer.deleteBookInfo(bean);
            response.sendRedirect("book.jsp");
        } else {
            out.println("您要删除书的编号不存在!");
        }

    }

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

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