managepro.java

在网上书店买书

import java.io.*;
import java.net.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import Model.DataOperation;
/**
 *
 * @author Administrator
 * @version
 */
public class ManagePro extends HttpServlet {
    
    /** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        String ISBN=request.getParameter("ISBN");
        String start=request.getParameter("Start");
        String end=request.getParameter("End");
        double discount=Double.parseDouble(request.getParameter("Dicount"));
        DataOperation db=new DataOperation();
        String promtionID=request.getParameter("PromtionID");
        Connection con=db.getConnection();
        try{
            Statement st=con.createStatement();
            String sql="insert into Promtions values('"+promtionID+"',"+discount+",'"+start+"','"+end+"',)";
            out.println("sql");
            
            st.execute(sql);
            response.sendRedirect("ManagePromtion.html");
        }
        catch(Exception e)
        {
            out.println("插入信息失败！");
        }
        out.close();
    }
    
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Returns a short description of the servlet.
     */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}