wareservlet.java~15~

销售管理系统 随着我国国民经济的持续发展

package com.webtier;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.dao.WareDao;
import com.domain.WareVO;

//商品信息的Servelt
public class WareServlet
    extends HttpServlet {
  private int method;
  private WareDao dao;
  private WareVO vo;
  public void doGet(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    request.setCharacterEncoding("gb2312");
    this.method = Integer.parseInt(request.getParameter("method"));
    this.vo = new WareVO();
    this.dao = new WareDao();
    switch (method) {
      case 0: {
        this.wareSelect(request, response);
        break;
      }
      case 1: {
        this.wareSelectOne(request, response);
        break;
      }
      case 2: {
        this.wareUpdate(request, response);
        break;
      }
      case 3: {
        this.wareInsert(request, response);
        break;
      }
      case 4: {
      this.wareDelete(request, response);
      break;
    }

    }
  }

  public void wareDelete(HttpServletRequest request,
                         HttpServletResponse response) throws
      ServletException, IOException {
    dao.wareDelete(Integer.valueOf(request.getParameter("id")));
    request.setAttribute("success", "删除信息成功！！！");
    RequestDispatcher requestDispatcher = request.getRequestDispatcher(
        "ware/success.jsp");
    requestDispatcher.forward(request, response);
  }

  public void wareInsert(HttpServletRequest request,
                         HttpServletResponse response) throws
      ServletException, IOException {
    String operate = request.getParameter("operate");
    String url = null;
    if (operate == null) {
      url = "ware/insertWare.jsp";
    }
    else {
      String number = "noNumber";
      vo.setNumber(number);
      vo.setName(request.getParameter("name"));
      vo.setKind(request.getParameter("kind"));
      vo.setBusiness(request.getParameter("business"));
      vo.setAccount(Integer.valueOf(request.getParameter("account")));
      vo.setMeasure(request.getParameter("unit"));
      vo.setMoney(Float.parseFloat(request.getParameter("money")));
      vo.setRemark(request.getParameter("remark"));
      dao.wareInsert(vo);
      WareVO ware = dao.wareSelectOne(number);
      dao.wareUpdateNumber(ware.getId(), number);
      request.setAttribute("success", "添加信息成功");

      url = "ware/success.jsp";
    }

    RequestDispatcher requestDispatcher = request.getRequestDispatcher(url);
    requestDispatcher.forward(request, response);
  }

  public void wareUpdate(HttpServletRequest request,
                         HttpServletResponse response) throws
      ServletException, IOException {
    vo.setName(request.getParameter("name"));
    vo.setKind(request.getParameter("kind"));
    vo.setBusiness(request.getParameter("business"));
    vo.setAccount(Integer.valueOf(request.getParameter("account")));
    vo.setMeasure(request.getParameter("unit"));
    vo.setMoney(Float.parseFloat(request.getParameter("money")));
    vo.setRemark(request.getParameter("remark"));
    vo.setId(Integer.valueOf(request.getParameter("id")));
    dao.wareUpdate(vo);
    request.setAttribute("success", "修改信息成功！！！");
    RequestDispatcher requestDispatcher = request.getRequestDispatcher(
        "ware/success.jsp");
    requestDispatcher.forward(request, response);
  }

  public void wareSelectOne(HttpServletRequest request,
                            HttpServletResponse response) throws
      ServletException, IOException {
    String url = "";
    request.setAttribute("ware",
                         dao.wareSelectOne(request.getParameter("number")));
    if (request.getParameter("ware") == null) {
      url = "ware/selectOneWare.jsp";
    }
    else {
      url = "ware/updateWare.jsp";
    }
    RequestDispatcher requestDispatcher = request.getRequestDispatcher(
        url);
    requestDispatcher.forward(request, response);
  }

  public void wareSelect(HttpServletRequest request,
                         HttpServletResponse response) throws
      ServletException, IOException {
    List list = dao.wareSelect();
    int pageNumber = list.size(); //计算出有多少条记录
    int maxPage = pageNumber; //计算有多少页数
    String number = request.getParameter("i");
    if (maxPage % 5 == 0) {
      maxPage = maxPage / 5;
    }
    else {
      maxPage = maxPage / 5 + 1;
    }
    if (number == null) {
      number = "0";
    }
    request.setAttribute("number", String.valueOf(number));
    request.setAttribute("maxPage", String.valueOf(maxPage));
    request.setAttribute("pageNumber", String.valueOf(pageNumber));
    request.setAttribute("list", list);
    RequestDispatcher requestDispatcher = request.getRequestDispatcher(
        "ware/wareSelect.jsp");
    requestDispatcher.forward(request, response);
  }

  public void doPost(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    doGet(request, response);
  }

}