ownerscontrol.java~31~

基于mvc的宠物管理系统。servlet+jsp

package com.richard.control;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.richard.dto.*;
import com.richard.dao.*;
import com.richard.service.*;

public class OwnersControl 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 {
        request.setCharacterEncoding("GB2312");
        response.setCharacterEncoding("GB2312");
        response.setContentType(CONTENT_TYPE);
        String param = request.getParameter("param"); //接收param参数，用于判断servlet处理何种操作
        InterfaceOfOwners objOwners = Factory.createOwners();
        HttpSession objSession = request.getSession();
        if (param != null) { //判断接收参数不为空
            if (param.equals("query")) { //处理查询

                String pageNumber = request.getParameter("pageNumber");
                if (pageNumber != null) {
                    if (pageNumber.equals("firstPage")) {
                        ArrayList objArrayList = new ArrayList();
                        objSession.setAttribute("ownersTotalPages",
                                                objOwners.totalPages());

                        objArrayList = objOwners.ownersQueryAll(12, 1);
                        request.setAttribute("queryResult", objArrayList); //将返回的ArrayList传递给queryemployee.jsp页面
                        request.setAttribute("currentPage", 1);
                        RequestDispatcher objDispatcher = request.
                                getRequestDispatcher(
                                        "context/queryowners.jsp");
                        objDispatcher.forward(request, response);

                    } else if (pageNumber.equals("endPage")) {
                        ArrayList objArrayList = objOwners.ownersQueryAll(
                                12,
                                Integer.parseInt(objSession.getAttribute(
                                "ownersTotalPages").
                                                 toString()));
                        request.setAttribute("queryResult", objArrayList); //将返回的ArrayList传递给queryemployee.jsp页面
                        request.setAttribute("currentPage",
                                             Integer.parseInt(objSession.
                                getAttribute("ownersTotalPages").toString())); //将返回的ArrayList传递给queryemployee.jsp页面
                        RequestDispatcher objDispatcher = request.
                                getRequestDispatcher(
                                        "context/queryowners.jsp");
                        objDispatcher.forward(request, response);

                    } else {
                        int queryPage = Integer.parseInt(pageNumber);
                        ArrayList objArrayList = objOwners.
                                                 ownersQueryAll(12,
                                queryPage);
                        request.setAttribute("queryResult", objArrayList); //将返回的ArrayList传递给queryemployee.jsp页面
                        request.setAttribute("currentPage", queryPage);
                        RequestDispatcher objDispatcher = request.
                                getRequestDispatcher(
                                        "context/queryowners.jsp");
                        objDispatcher.forward(request, response);

                    }
                }

            }
            if (param.equals("addOwners")) {     //处理新增
                RequestDispatcher objDispatcher = request.
                                                  getRequestDispatcher(
                        "context/addowners.jsp");
                objDispatcher.forward(request, response);

            }
            if (param.equals("addSave")) {     //处理新增保存

                String name = request.getParameter("name");
                String address = request.getParameter("address");
                String city = request.getParameter("city");
                String telephone = request.getParameter("telephone");

                if (name != null || address != null || city != null ||
                    telephone != null) {
                    Owners ownersBean = new Owners();
                    ownersBean.setAddress(address);
                    ownersBean.setCity(city);
                    ownersBean.setName(name);
                    ownersBean.setTelephone(telephone);
                    objOwners.ownersInsert(ownersBean);
                    //新增成功后返回分页查询的最后一页
                    ArrayList objArrayList = objOwners.ownersQueryAll(
                            12,
                            Integer.parseInt(objSession.getAttribute(
                            "ownersTotalPages").
                                             toString()));
                    request.setAttribute("queryResult", objArrayList); //将返回的ArrayList传递给queryemployee.jsp页面
                    request.setAttribute("currentPage",
                                         Integer.parseInt(objSession.
                            getAttribute("ownersTotalPages").toString())); //将返回的ArrayList传递给queryemployee.jsp页面
                    RequestDispatcher objDispatcher = request.
                            getRequestDispatcher(
                                   "context/addowners.jsp");
                    objDispatcher.forward(request, response);

                }
            }

            if(param.equals("update"))
            {
                String updateId=request.getParameter("updateId");
                String updateName=new String(request.getParameter("updateName").getBytes("ISO8859_1"));
                String updateAddress=new String(request.getParameter("updateAddress").getBytes("ISO8859_1"));
                String updateCity=new String(request.getParameter("updateCity").getBytes("ISO8859_1"));
                String updateTelephone=new String(request.getParameter("updateTelephone").getBytes("ISO8859_1"));
                String pageNumber=new String(request.getParameter("pageNumber"));
                request.setAttribute("updateId",updateId);
                request.setAttribute("updateName",updateName);
                request.setAttribute("updateAddress",updateAddress);
                request.setAttribute("updateCity",updateCity);
                request.setAttribute("updateTelephone",updateTelephone);
                request.setAttribute("pageNumber",pageNumber);
                ArrayList objArrayList=new ArrayList();
                objArrayList.add("北京");
                objArrayList.add("上海");
                objArrayList.add("天津");
                objArrayList.add("广州");
                objArrayList.add("重庆");
                objArrayList.add("湖北");
                objArrayList.add("湖南");
                objArrayList.add("河南");
                objArrayList.add("河北");
                objArrayList.add("山东");
                objArrayList.add("山西");
                objArrayList.add("广东");
                objArrayList.add("广西");
                objArrayList.add("四川");
                objArrayList.add("江西");
                objArrayList.add("安徽");
                request.setAttribute("allCity",objArrayList);
                RequestDispatcher objDispatcher=request.getRequestDispatcher("context/updateowners.jsp");
                objDispatcher.forward(request,response);
            }

            if(param.equals("updateSave"))
            {
                int pageNumer=Integer.parseInt(request.getParameter("pageNumer"));
                int id=Integer.parseInt(request.getParameter("id"));
                String name=request.getParameter("name");
                String address=request.getParameter("address");
                String city=request.getParameter("city");
                String telephone=request.getParameter("telephone");
                Owners ownersBean=new Owners();
                ownersBean.setId(id);
                ownersBean.setName(name);
                ownersBean.setAddress(address);
                ownersBean.setCity(city);
                ownersBean.setTelephone(telephone);
                Factory.createOwners().ownersUpdate(ownersBean);
                RequestDispatcher objDispatcher=request.getRequestDispatcher("ownerscontrol?param=query&pageNumer="+pageNumer);
                objDispatcher.forward(request,response);
            }
            if(param.equals("delete"))
            {
                int deleteId=Integer.parseInt(request.getParameter("deleteid"));
                String queryPage=request.getParameter("pageNumber");
                Owners ownersBean=new Owners();
                ownersBean.setId(deleteId);
                objOwners.ownersDelete(ownersBean);
                ArrayList objArrayList = objOwners.
                                                 ownersQueryAll(12,
                                Integer.parseInt(queryPage));
                        request.setAttribute("queryResult", objArrayList); //将返回的ArrayList传递给queryemployee.jsp页面
                        request.setAttribute("currentPage", queryPage);
                        objSession.setAttribute("ownersTotalPages",
                                                objOwners.totalPages());
                        RequestDispatcher objDispatcher = request.
                                getRequestDispatcher(
                                        "context/queryowners.jsp");
                        objDispatcher.forward(request, response);

            }

        }
    }

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

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