《超市订单管理系统》项目源码 Mybatis+Spring+SpringMVC 框架

package cn.smbms.controller;

import cn.smbms.pojo.Bill;
import cn.smbms.pojo.Provider;
import cn.smbms.pojo.User;
import cn.smbms.service.bill.BillService;
import cn.smbms.service.provider.ProviderService;
import cn.smbms.tools.Constants;
import cn.smbms.tools.PageSupport;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.mysql.jdbc.StringUtils;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

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

@Controller
@RequestMapping（“/sys/bill“）
public class BillController {
    @Resource
    private BillService billService;
    @Resource
    private ProviderService providerService;
    @RequestMapping（value = “/list.html“）
    public String getBillList（Model model
                              @RequestParam（value = “queryProductName“ required = false） String queryProductName
                              @RequestParam（value = “queryProviderId“ required = false） String queryProviderId
                              @RequestParam（value = “queryIsPayment“ required = false） String queryIsPayment
                              @RequestParam（value = “pageIndex“ required = false） String pageIndex） {
        int _queryProviderId = 0;
        int _queryIsPayment=0;
        List billList = new ArrayList（）;
        ListproviderList=new ArrayList（）;
        //设置页面容量
        int pageSize = Constants.pageSize;
        //当前页码
        int currentPageNo = 1;

        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 “redirect:/sys/bill/syserror.html“;
            }
        }
        //总数量
        int totalCount = 0;
        try {
            totalCount = billService.getBillCount（queryProductName_queryProviderId_queryIsPayment）;
        } catch （Exception e） {
            e.printStackTrace（）;
        }
        //总页数
        PageSupport pages =  new PageSupport（）;
        pages.setCurrentPageNo（currentPageNo）;
        pages.setPageSize（pageSize）;
        pages.setTotalCount（totalCount）;
        int totalPageCount = pages.getTotalPageCount（）;
        //控制首页和尾页
        if（currentPageNo < 1）{
            currentPageNo = 1;
        }else if（current