超市订单管理

超市订单管理系统

package controller;

import com.alibaba.fastjson.JSONArray;
import entity.Bill;
import entity.Provider;
import entity.Role;
import entity.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.*;
import service.BillService;
import service.ProvideService;
import service.UserService;

import javax.annotation.Resource;
import javax.servlet.http.HttpSession;
import java.util.Date;
import java.util.HashMap;
import java.util.List;

@Controller
public class BillController {
    @Resource
    private BillService billService;
    @Resource
    private ProvideService provideService;
    @Resource
    private UserService userService;
    /**
     * 分页
     */
    @RequestMapping（value = “/Blist.html“）
    public String userlist（Model model String queryProductName String queryProviderIdString queryIsPayment String pageIndex）{
        List providerList = null;
        int _queryProviderId = 0;
        int _queryIsPayment = 0;
        //设置当前页码
        int currentPageNo = 1;
        //设置页面总量
        int pageSize = 8;
        if（queryProductName == null）{
            queryProductName=““;
        }
        if（queryProviderId != null && !queryProviderId.equals（““））{
            _queryProviderId = Integer.parseInt（queryProviderId）;
        }
        if（queryIsPayment != null && !queryIsPayment.equals（““））{
            _queryIsPayment = Integer.parseInt（queryIsPayment）;
        }
        if（pageIndex != null）{
            try {
                currentPageNo = Integer.valueOf（pageIndex）;
            }catch （NumberFormatException e）{
                return null;
            }
        }
        //表数据总量
        int totalCount = billService.Count（queryProductName _queryProviderId _queryIsPayment）;
        //总页数
        int pageCount = totalCount%pageSize==0?totalCount/pageSize:totalCount/pageSize+1;

        providerList = billService.getUserList（queryProductName_queryProviderId_queryIsPaymentcurrentPageNopageSize）;
        List providers = provideService.XLK（）;
        model.addAttribute（“providers“providers）;
        model.addAttribute（“providerList“providerList）;
        model.addAttribute（“queryProductName“queryProductName）;
        model.addAttribute（“queryProviderId“_queryProviderId）;
        model.addAttribute（“queryIsPayment“_queryIsPayment）;
        model.addAttribute（“pageCount“pageCount）;
        model.addAttribute（“totalCount“totalCount）;
        model.addAttribute（“currentPageNo“currentPageNo）;
        return “jsp/billlist“;
    }
    /**
     * 为添加方法写一个空的Provider
     * @param bill
     * @param model
     * @return
     */
    @RequestMapping（value = “/Billadd.do“method = RequestMethod.GET）
    public String toAdd（@ModelAttribute（“bill“） Bill bill Model model）{
        List list = provideService

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