背景介绍:
网络发展的越来越迅速,它深刻的影响着每一个人生活的各个方面。每一种新型事务的兴起都是为了使人们的生活更加方便。汽车租赁管理系统是一种低成本、更加高效的电子商务方式,它已慢慢的成为一种全新的管理模式。人们不再满足于在互联网上浏览、发布信息和人与人之间的聊天,而是希望互联网能为人们的生活带来更多便利。伴随着网络的崛起,汽车租赁管理开始变得越来越普遍。
基于此背景 开发汽车租赁系统
该系统主要分为三大模块:即管理员模块、用户模块和普通管理员模块,主要功能包括:个人信息修改,用户管理、普通管理员管理、汽车类别管理、汽车信息管理、租车订单管理、取消订单管理、还车信息管理、汽车资讯管理、汽车论坛、留言板管理、系统管理等;
部分截图如下:
相关代码
package com.controller;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.text.ParseException;
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 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.ForumEntity;
import com.entity.view.ForumView;
import com.service.ForumService;
import com.service.TokenService;
import com.utils.PageUtils;
import com.utils.R;
import com.utils.MD5Util;
import com.utils.MPUtil;
import com.utils.CommonUtil;
import java.io.IOException;
/**
* 汽车论坛
* 后端接口
* @author
* @email
* @date 2023-03-08 18:33:34
*/
@RestController
@RequestMapping("/forum")
public class ForumController {
@Autowired
private ForumService forumService;
/**
* 后端列表
*/
@RequestMapping("/page")
public R page(@RequestParam Map<String, Object> params,ForumEntity forum,
HttpServletRequest request){
if(!request.getSession().getAttribute("role").toString().equals("管理员")) {
forum.setUserid((Long)request.getSession().getAttribute("userId"));
}
EntityWrapper<ForumEntity> ew = new EntityWrapper<ForumEntity>();
PageUtils page = forumService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, forum), params), params));
return R.ok().put("data", page);
}
/**
* 前端列表
*/
@RequestMapping("/list")
public R list(@RequestParam Map<String, Object> params,ForumEntity forum,
HttpServletRequest request){
if(!request.getSession().getAttribute("role").toString().equals("管理员")) {
forum.setUserid((Long)request.getSession().getAttribute("userId"));
}
EntityWrapper<ForumEntity> ew = new EntityWrapper<ForumEntity>();
PageUtils page = forumService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, forum), params), params));
return R.ok().put("data", page);
}
/**
* 列表
*/
@IgnoreAuth
@RequestMapping("/flist")
public R flist(@RequestParam Map<String, Object> params,ForumEntity forum, HttpServletRequest request){
EntityWrapper<ForumEntity> ew = new EntityWrapper<ForumEntity>();
PageUtils page = forumService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, forum), params), params));
return R.ok().put("data", page);
}
/**
* 查询
*/
@RequestMapping("/query")
public R query(ForumEntity forum){
EntityWrapper< ForumEntity> ew = new EntityWrapper< ForumEntity>();
ew.allEq(MPUtil.allEQMapPre( forum, "forum"));
ForumView forumView = forumService.selectView(ew);
return R.ok("查询汽车论坛成功").put("data", forumView);
}
/**
* 后端详情
*/
@RequestMapping("/info/{id}")
public R info(@PathVariable("id") Long id){
ForumEntity forum = forumService.selectById(id);
return R.ok().put("data", forum);
}
/**
* 前端详情
*/
@IgnoreAuth
@RequestMapping("/detail/{id}")
public R detail(@PathVariable("id") Long id){
ForumEntity forum = forumService.selectById(id);
return R.ok().put("data", forum);
}
/**
* 论坛详情
*/
@IgnoreAuth
@RequestMapping("/list/{id}")
public R list(@PathVariable("id") String id){
ForumEntity forum = forumService.selectById(id);
getChilds(forum);
return R.ok().put("data", forum);
}
private ForumEntity getChilds(ForumEntity forum) {
List<ForumEntity> childs = new ArrayList<ForumEntity>();
childs = forumService.selectList(new EntityWrapper<ForumEntity>().eq("parentid", forum.getId()));
if(childs == null || childs.size()==0) {
return null;
}
forum.setChilds(childs);
for(ForumEntity forumEntity : childs) {
getChilds(forumEntity);
}
return forum;
}
/**
* 后端保存
*/
@RequestMapping("/save")
public R save(@RequestBody ForumEntity forum, HttpServletRequest request){
forum.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
//ValidatorUtils.validateEntity(forum);
forum.setUserid((Long)request.getSession().getAttribute("userId"));
forumService.insert(forum);
return R.ok();
}
/**
* 前端保存
*/
@RequestMapping("/add")
public R add(@RequestBody ForumEntity forum, HttpServletRequest request){
forum.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
//ValidatorUtils.validateEntity(forum);
forum.setUserid((Long)request.getSession().getAttribute("userId"));
forumService.insert(forum);
return R.ok();
}
/**
* 修改
*/
@RequestMapping("/update")
@Transactional
public R update(@RequestBody ForumEntity forum, HttpServletRequest request){
//ValidatorUtils.validateEntity(forum);
forumService.updateById(forum);//全部更新
return R.ok();
}
/**
* 删除
*/
@RequestMapping("/delete")
public R delete(@RequestBody Long[] ids){
forumService.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<ForumEntity> wrapper = new EntityWrapper<ForumEntity>();
if(map.get("remindstart")!=null) {
wrapper.ge(columnName, map.get("remindstart"));
}
if(map.get("remindend")!=null) {
wrapper.le(columnName, map.get("remindend"));
}
int count = forumService.selectCount(wrapper);
return R.ok().put("count", count);
}
}