在Internet高速发展的今天，我们生活的各个领域都涉及到计算机的应用，其中包括食堂线上预约点餐系统的网络应用，在外国线上管理系统已经是很普遍的方式，不过国内的线上管理系统可能还处于起步阶段。食堂线上预约点餐系统具有食堂线上预约点餐信息管理功能的选择。食堂线上预约点餐系统采用java技术，基于mysql开发，实现了首页、个人中心、学生管理、菜品分类管理、菜品管理、关于我们管理、意见反馈、系统管理、订单管理等内容进行管理，本系统具有良好的兼容性和适应性，为用户提供更多的食堂线上预约点餐信息，也提供了良好的平台，从而提高系统的核心竞争力。
本文首先介绍了设计的背景与研究目的，其次介绍系统相关技术，重点叙述了系统功能分析以及详细设计，最后总结了系统的开发心得。
基于微信小程序的ssm食堂线上预约点餐系统源码和论文weixin323
关键词：java技术；食堂线上预约点餐系统；mysql
演示视频：
基于微信小程序的ssm食堂线上预约点餐系统源码和论文
Abstract
In the rapid development of the Internet today, all areas of our life are involved in the application of computers, including the network application of canteen online reservation ordering system, online management system in foreign countries has been a very common way, but the domestic online management system may still be in its infancy. Canteen online reservation ordering system has the choice of canteen online reservation ordering information management function. The online reservation ordering system of the canteen adopts Java technology and is developed based on mysql to achieve the management of home page, personal center, student management, dishes classification management, dishes management, about our management, feedback, system management, order management and other contents. The system has good compatibility and adaptability. It also provides users with more online booking information of canteen and a good platform, so as to improve the core competitiveness of the system.
This paper first introduces the design background and research purpose, then introduces the system related technology, focuses on the system function analysis and detailed design, and finally summarizes the development experience of the system.
Key words: Java technology; Canteen online reservation ordering system; mysql
文章来源：https://www.toymoban.com/news/detail-838372.html
package com.controller;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Date;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import com.utils.ValidatorUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.mapper.Wrapper;
import com.annotation.IgnoreAuth;
import com.entity.OrdersEntity;
import com.entity.view.OrdersView;
import com.service.OrdersService;
import com.service.TokenService;
import com.utils.PageUtils;
import com.utils.R;
import com.utils.MD5Util;
import com.utils.MPUtil;
import com.utils.CommonUtil;
/**
* 订单
* 后端接口
* @author
* @email
* @date 2022-04-29 12:06:28
*/
@RestController
@RequestMapping("/orders")
public class OrdersController {
@Autowired
private OrdersService ordersService;
/**
* 后端列表
*/
@RequestMapping("/page")
public R page(@RequestParam Map<String, Object> params,OrdersEntity orders,
HttpServletRequest request){
if(!request.getSession().getAttribute("role").toString().equals("管理员")) {
orders.setUserid((Long)request.getSession().getAttribute("userId"));
}
EntityWrapper<OrdersEntity> ew = new EntityWrapper<OrdersEntity>();
PageUtils page = ordersService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, orders), params), params));
return R.ok().put("data", page);
}
/**
* 前端列表
*/
@IgnoreAuth
@RequestMapping("/list")
public R list(@RequestParam Map<String, Object> params,OrdersEntity orders,
HttpServletRequest request){
EntityWrapper<OrdersEntity> ew = new EntityWrapper<OrdersEntity>();
PageUtils page = ordersService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, orders), params), params));
return R.ok().put("data", page);
}
/**
* 列表
*/
@RequestMapping("/lists")
public R list( OrdersEntity orders){
EntityWrapper<OrdersEntity> ew = new EntityWrapper<OrdersEntity>();
ew.allEq(MPUtil.allEQMapPre( orders, "orders"));
return R.ok().put("data", ordersService.selectListView(ew));
}
/**
* 查询
*/
@RequestMapping("/query")
public R query(OrdersEntity orders){
EntityWrapper< OrdersEntity> ew = new EntityWrapper< OrdersEntity>();
ew.allEq(MPUtil.allEQMapPre( orders, "orders"));
OrdersView ordersView = ordersService.selectView(ew);
return R.ok("查询订单成功").put("data", ordersView);
}
/**
* 后端详情
*/
@RequestMapping("/info/{id}")
public R info(@PathVariable("id") Long id){
OrdersEntity orders = ordersService.selectById(id);
return R.ok().put("data", orders);
}
/**
* 前端详情
*/
@IgnoreAuth
@RequestMapping("/detail/{id}")
public R detail(@PathVariable("id") Long id){
OrdersEntity orders = ordersService.selectById(id);
return R.ok().put("data", orders);
}
/**
* 后端保存
*/
@RequestMapping("/save")
public R save(@RequestBody OrdersEntity orders, HttpServletRequest request){
orders.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
//ValidatorUtils.validateEntity(orders);
orders.setUserid((Long)request.getSession().getAttribute("userId"));
ordersService.insert(orders);
return R.ok();
}
/**
* 前端保存
*/
@RequestMapping("/add")
public R add(@RequestBody OrdersEntity orders, HttpServletRequest request){
orders.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
//ValidatorUtils.validateEntity(orders);
ordersService.insert(orders);
return R.ok();
}
/**
* 修改
*/
@RequestMapping("/update")
@Transactional
public R update(@RequestBody OrdersEntity orders, HttpServletRequest request){
//ValidatorUtils.validateEntity(orders);
ordersService.updateById(orders);//全部更新
return R.ok();
}
/**
* 删除
*/
@RequestMapping("/delete")
public R delete(@RequestBody Long[] ids){
ordersService.deleteBatchIds(Arrays.asList(ids));
return R.ok();
}
/**
* 提醒接口
*/
@RequestMapping("/remind/{columnName}/{type}")
public R remindCount(@PathVariable("columnName") String columnName, HttpServletRequest request,
@PathVariable("type") String type,@RequestParam Map<String, Object> map) {
map.put("column", columnName);
map.put("type", type);
if(type.equals("2")) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar c = Calendar.getInstance();
Date remindStartDate = null;
Date remindEndDate = null;
if(map.get("remindstart")!=null) {
Integer remindStart = Integer.parseInt(map.get("remindstart").toString());
c.setTime(new Date());
c.add(Calendar.DAY_OF_MONTH,remindStart);
remindStartDate = c.getTime();
map.put("remindstart", sdf.format(remindStartDate));
}
if(map.get("remindend")!=null) {
Integer remindEnd = Integer.parseInt(map.get("remindend").toString());
c.setTime(new Date());
c.add(Calendar.DAY_OF_MONTH,remindEnd);
remindEndDate = c.getTime();
map.put("remindend", sdf.format(remindEndDate));
}
}
Wrapper<OrdersEntity> wrapper = new EntityWrapper<OrdersEntity>();
if(map.get("remindstart")!=null) {
wrapper.ge(columnName, map.get("remindstart"));
}
if(map.get("remindend")!=null) {
wrapper.le(columnName, map.get("remindend"));
}
if(!request.getSession().getAttribute("role").toString().equals("管理员")) {
wrapper.eq("userid", (Long)request.getSession().getAttribute("userId"));
}
int count = ordersService.selectCount(wrapper);
return R.ok().put("count", count);
}
/**
* （按值统计）
*/
@RequestMapping("/value/{xColumnName}/{yColumnName}")
public R value(@PathVariable("yColumnName") String yColumnName, @PathVariable("xColumnName") String xColumnName,HttpServletRequest request) {
Map<String, Object> params = new HashMap<String, Object>();
params.put("xColumn", xColumnName);
params.put("yColumn", yColumnName);
EntityWrapper<OrdersEntity> ew = new EntityWrapper<OrdersEntity>();
ew.in("status", new String[]{"已支付","已发货","已完成"});
List<Map<String, Object>> result = ordersService.selectValue(params, ew);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
for(Map<String, Object> m : result) {
for(String k : m.keySet()) {
if(m.get(k) instanceof Date) {
m.put(k, sdf.format((Date)m.get(k)));
}
}
}
return R.ok().put("data", result);
}
/**
* （按值统计）时间统计类型
*/
@RequestMapping("/value/{xColumnName}/{yColumnName}/{timeStatType}")
public R valueDay(@PathVariable("yColumnName") String yColumnName, @PathVariable("xColumnName") String xColumnName, @PathVariable("timeStatType") String timeStatType,HttpServletRequest request) {
Map<String, Object> params = new HashMap<String, Object>();
params.put("xColumn", xColumnName);
params.put("yColumn", yColumnName);
params.put("timeStatType", timeStatType);
EntityWrapper<OrdersEntity> ew = new EntityWrapper<OrdersEntity>();
ew.in("status", new String[]{"已支付","已发货","已完成"});
List<Map<String, Object>> result = ordersService.selectTimeStatValue(params, ew);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
for(Map<String, Object> m : result) {
for(String k : m.keySet()) {
if(m.get(k) instanceof Date) {
m.put(k, sdf.format((Date)m.get(k)));
}
}
}
return R.ok().put("data", result);
}
/**
* 分组统计
*/
@RequestMapping("/group/{columnName}")
public R group(@PathVariable("columnName") String columnName,HttpServletRequest request) {
Map<String, Object> params = new HashMap<String, Object>();
params.put("column", columnName);
EntityWrapper<OrdersEntity> ew = new EntityWrapper<OrdersEntity>();
ew.in("status", new String[]{"已支付","已发货","已完成"});
List<Map<String, Object>> result = ordersService.selectGroup(params, ew);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
for(Map<String, Object> m : result) {
for(String k : m.keySet()) {
if(m.get(k) instanceof Date) {
m.put(k, sdf.format((Date)m.get(k)));
}
}
}
return R.ok().put("data", result);
}
}
文章来源地址https://www.toymoban.com/news/detail-838372.html
package com.controller;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Date;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import com.utils.ValidatorUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.mapper.Wrapper;
import com.annotation.IgnoreAuth;
import com.entity.XueshengEntity;
import com.entity.view.XueshengView;
import com.service.XueshengService;
import com.service.TokenService;
import com.utils.PageUtils;
import com.utils.R;
import com.utils.MD5Util;
import com.utils.MPUtil;
import com.utils.CommonUtil;
/**
* 学生
* 后端接口
* @author
* @email
* @date 2022-04-29 12:06:28
*/
@RestController
@RequestMapping("/xuesheng")
public class XueshengController {
@Autowired
private XueshengService xueshengService;
@Autowired
private TokenService tokenService;
/**
* 登录
*/
@IgnoreAuth
@RequestMapping(value = "/login")
public R login(String username, String password, String captcha, HttpServletRequest request) {
XueshengEntity user = xueshengService.selectOne(new EntityWrapper<XueshengEntity>().eq("xuehao", username));
if(user==null || !user.getMima().equals(password)) {
return R.error("账号或密码不正确");
}
String token = tokenService.generateToken(user.getId(), username,"xuesheng", "学生" );
return R.ok().put("token", token);
}
/**
* 注册
*/
@IgnoreAuth
@RequestMapping("/register")
public R register(@RequestBody XueshengEntity xuesheng){
//ValidatorUtils.validateEntity(xuesheng);
XueshengEntity user = xueshengService.selectOne(new EntityWrapper<XueshengEntity>().eq("xuehao", xuesheng.getXuehao()));
if(user!=null) {
return R.error("注册用户已存在");
}
Long uId = new Date().getTime();
xuesheng.setId(uId);
xueshengService.insert(xuesheng);
return R.ok();
}
/**
* 退出
*/
@RequestMapping("/logout")
public R logout(HttpServletRequest request) {
request.getSession().invalidate();
return R.ok("退出成功");
}
/**
* 获取用户的session用户信息
*/
@RequestMapping("/session")
public R getCurrUser(HttpServletRequest request){
Long id = (Long)request.getSession().getAttribute("userId");
XueshengEntity user = xueshengService.selectById(id);
return R.ok().put("data", user);
}
/**
* 密码重置
*/
@IgnoreAuth
@RequestMapping(value = "/resetPass")
public R resetPass(String username, HttpServletRequest request){
XueshengEntity user = xueshengService.selectOne(new EntityWrapper<XueshengEntity>().eq("xuehao", username));
if(user==null) {
return R.error("账号不存在");
}
user.setMima("123456");
xueshengService.updateById(user);
return R.ok("密码已重置为：123456");
}
/**
* 后端列表
*/
@RequestMapping("/page")
public R page(@RequestParam Map<String, Object> params,XueshengEntity xuesheng,
HttpServletRequest request){
EntityWrapper<XueshengEntity> ew = new EntityWrapper<XueshengEntity>();
PageUtils page = xueshengService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, xuesheng), params), params));
return R.ok().put("data", page);
}
/**
* 前端列表
*/
@IgnoreAuth
@RequestMapping("/list")
public R list(@RequestParam Map<String, Object> params,XueshengEntity xuesheng,
HttpServletRequest request){
EntityWrapper<XueshengEntity> ew = new EntityWrapper<XueshengEntity>();
PageUtils page = xueshengService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, xuesheng), params), params));
return R.ok().put("data", page);
}
/**
* 列表
*/
@RequestMapping("/lists")
public R list( XueshengEntity xuesheng){
EntityWrapper<XueshengEntity> ew = new EntityWrapper<XueshengEntity>();
ew.allEq(MPUtil.allEQMapPre( xuesheng, "xuesheng"));
return R.ok().put("data", xueshengService.selectListView(ew));
}
/**
* 查询
*/
@RequestMapping("/query")
public R query(XueshengEntity xuesheng){
EntityWrapper< XueshengEntity> ew = new EntityWrapper< XueshengEntity>();
ew.allEq(MPUtil.allEQMapPre( xuesheng, "xuesheng"));
XueshengView xueshengView = xueshengService.selectView(ew);
return R.ok("查询学生成功").put("data", xueshengView);
}
/**
* 后端详情
*/
@RequestMapping("/info/{id}")
public R info(@PathVariable("id") Long id){
XueshengEntity xuesheng = xueshengService.selectById(id);
return R.ok().put("data", xuesheng);
}
/**
* 前端详情
*/
@IgnoreAuth
@RequestMapping("/detail/{id}")
public R detail(@PathVariable("id") Long id){
XueshengEntity xuesheng = xueshengService.selectById(id);
return R.ok().put("data", xuesheng);
}
/**
* 后端保存
*/
@RequestMapping("/save")
public R save(@RequestBody XueshengEntity xuesheng, HttpServletRequest request){
xuesheng.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
//ValidatorUtils.validateEntity(xuesheng);
XueshengEntity user = xueshengService.selectOne(new EntityWrapper<XueshengEntity>().eq("xuehao", xuesheng.getXuehao()));
if(user!=null) {
return R.error("用户已存在");
}
xuesheng.setId(new Date().getTime());
xueshengService.insert(xuesheng);
return R.ok();
}
/**
* 前端保存
*/
@RequestMapping("/add")
public R add(@RequestBody XueshengEntity xuesheng, HttpServletRequest request){
xuesheng.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
//ValidatorUtils.validateEntity(xuesheng);
XueshengEntity user = xueshengService.selectOne(new EntityWrapper<XueshengEntity>().eq("xuehao", xuesheng.getXuehao()));
if(user!=null) {
return R.error("用户已存在");
}
xuesheng.setId(new Date().getTime());
xueshengService.insert(xuesheng);
return R.ok();
}
/**
* 修改
*/
@RequestMapping("/update")
@Transactional
public R update(@RequestBody XueshengEntity xuesheng, HttpServletRequest request){
//ValidatorUtils.validateEntity(xuesheng);
xueshengService.updateById(xuesheng);//全部更新
return R.ok();
}
/**
* 删除
*/
@RequestMapping("/delete")
public R delete(@RequestBody Long[] ids){
xueshengService.deleteBatchIds(Arrays.asList(ids));
return R.ok();
}
/**
* 提醒接口
*/
@RequestMapping("/remind/{columnName}/{type}")
public R remindCount(@PathVariable("columnName") String columnName, HttpServletRequest request,
@PathVariable("type") String type,@RequestParam Map<String, Object> map) {
map.put("column", columnName);
map.put("type", type);
if(type.equals("2")) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar c = Calendar.getInstance();
Date remindStartDate = null;
Date remindEndDate = null;
if(map.get("remindstart")!=null) {
Integer remindStart = Integer.parseInt(map.get("remindstart").toString());
c.setTime(new Date());
c.add(Calendar.DAY_OF_MONTH,remindStart);
remindStartDate = c.getTime();
map.put("remindstart", sdf.format(remindStartDate));
}
if(map.get("remindend")!=null) {
Integer remindEnd = Integer.parseInt(map.get("remindend").toString());
c.setTime(new Date());
c.add(Calendar.DAY_OF_MONTH,remindEnd);
remindEndDate = c.getTime();
map.put("remindend", sdf.format(remindEndDate));
}
}
Wrapper<XueshengEntity> wrapper = new EntityWrapper<XueshengEntity>();
if(map.get("remindstart")!=null) {
wrapper.ge(columnName, map.get("remindstart"));
}
if(map.get("remindend")!=null) {
wrapper.le(columnName, map.get("remindend"));
}
int count = xueshengService.selectCount(wrapper);
return R.ok().put("count", count);
}
}
到了这里，关于基于微信小程序的ssm食堂线上预约点餐系统源码和论文的文章就介绍完了。如果您还想了解更多内容，请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持TOY模板网！
