chargeservlet.java

这是中国移动的一个管理系统

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package com.mobile.serlvet;

import com.mobile.mode.ChargeManager;
import com.mobile.mode.Constants;
import java.io.*;

import javax.servlet.*;
import javax.servlet.http.*;

/**
 *
 * @author st
 */
public class ChargeServlet 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 {
       request.setCharacterEncoding("GBK");
       String code = request.getParameter("D1");
       String charge = request.getParameter("T1");
       double dcharge = Double.parseDouble(charge);
       
       
       String errorMessage = "";
       ChargeManager manager = ChargeManager.getInstance();
       boolean is = manager.updateCharge(code, dcharge);
       
       if(is == true){
         String ends = manager.getCharges();
         PrintWriter po = response.getWriter();
         po.println(ends+"<a href='main.jsp'>back</a>");
         po.close();
       }else{
         request.setAttribute(Constants.USER_MESSAGE, "更新失败请检查后再试");
         request.getRequestDispatcher("Charge.jsp").forward(request, response);
       }

    } 

    // <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>
}