基于SpringBoot的大学生租房系统

背景

大学生租房系统设计的目的是建立一个高效的平台，采用简洁高效的Java语言与Mysql数据库等技术，设计和开发了本大学生租房系统设计。该系统主要实现了用户和房主通过系统注册用户，登录系统后能够编辑自己的个人信息、查看首页，房屋信息，房屋评价，公告资讯，个人中心，后台管理，意见反馈等，还可以对后台进行操作，以及管理员可以进行首页，个人中心，房主管理，用户管理，房屋类型管理，房屋信息管理，预约看房管理，定金留房管理，租赁订单管理，房屋评价管理等功能的管理。计算机技术在现代管理中的应用，使计算机成为用户应用现代技术的重要工具，能够有效的解决获取信息便捷化、全面化的问题，提高效率。

系统主要包括首页，个人中心，房主管理，用户管理，房屋类型管理，房屋信息管理，预约看房管理，定金留房管理，租赁订单管理，房屋评价管理等功能的操作系统，管理员是整个系统的核心。而用户登录到系统前台，可以对首页，房屋信息，房屋评价，公告资讯，个人中心，后台管理，意见反馈等进行查看以及其他的操作。

系统设计

根据大学生租房系统的功能需求，进行系统设计。

前台功能：进入系统可以实现首页，房屋信息，房屋评价，公告资讯，个人中心，后台管理，意见反馈等功能进行操作；
后台主要是管理员，房主和用户，主要功能包括首页，个人中心，房主管理，用户管理，房屋类型管理，房屋信息管理，预约看房管理，定金留房管理，租赁订单管理，房屋评价管理等。

系统对这些功能进行整合，产生的功能结构图如下：

数据库设计

ER图是由实体及其关系构成的图，通过E/R图可以清楚地描述系统涉及到的实体之间的相互关系。在系统中对一些主要的几个关键实体如下图：

1.用户注册实体
用户注册实体包括用户名，密码，确认密码，姓名，手机，身份证等属性。用户注册实体图如图4-2所示：

2.房屋信息实体
房屋信息实体包括房屋类型，地区，位置，朝向，楼层，楼号，房屋面积，房屋设施，房屋状态，房屋租金，房主账号，房主姓名等属性。房屋信息实体图如图4-3所示：

数据库概念结构设计后，可以数据库概念转化实际的数据模型，这是一种数据库的逻辑结构，就是将概念结构与支持数据库管理系统的模型相符合。具体的表设计如下所示。此处只展示部分表。

系统详细设计

系统功能模块

大学生租房系统，在系统首页可以查看首页，房屋信息，房屋评价，公告资讯，个人中心，后台管理，意见反馈等内容，并进行详细操作。

房屋信息，在房屋信息页面可以查看房屋类型，地区，位置，朝向，楼层，楼号，房屋面积，房屋设施，房屋状态，房屋租金，房主账号，房主姓名等内容，并可以进行预约看房，定金留房等操作。

管理员模块

管理员登录系统后，可以对首页，个人中心，房主管理，用户管理，房屋类型管理，房屋信息管理，预约看房管理，定金留房管理，租赁订单管理，房屋评价管理等功能进行相应的操作。

房主管理，在房主管理页面可以对索引，房主账号，房主姓名，性别，照片，联系电话，身份证等内容进行详情，修改和删除等操作。

代码实现

由于代码较多，此处只展示部分代码。

房屋信息接口

/*** 房屋信息* 后端接口* @author * @email * @date 2022-04-10 15:56:44*/
@RestController
@RequestMapping("/fangwuxinxi")
public class FangwuxinxiController {@Autowiredprivate FangwuxinxiService fangwuxinxiService;@Autowiredprivate StoreupService storeupService;/*** 后端列表*/@RequestMapping("/page")public R page(@RequestParam Map<String, Object> params,FangwuxinxiEntity fangwuxinxi,HttpServletRequest request){String tableName = request.getSession().getAttribute("tableName").toString();if(tableName.equals("fangzhu")) {fangwuxinxi.setFangzhuzhanghao((String)request.getSession().getAttribute("username"));}EntityWrapper<FangwuxinxiEntity> ew = new EntityWrapper<FangwuxinxiEntity>();PageUtils page = fangwuxinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, fangwuxinxi), params), params));return R.ok().put("data", page);}/*** 前端列表*/@IgnoreAuth@RequestMapping("/list")public R list(@RequestParam Map<String, Object> params,FangwuxinxiEntity fangwuxinxi, HttpServletRequest request){EntityWrapper<FangwuxinxiEntity> ew = new EntityWrapper<FangwuxinxiEntity>();PageUtils page = fangwuxinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, fangwuxinxi), params), params));return R.ok().put("data", page);}/*** 列表*/@RequestMapping("/lists")public R list( FangwuxinxiEntity fangwuxinxi){EntityWrapper<FangwuxinxiEntity> ew = new EntityWrapper<FangwuxinxiEntity>();ew.allEq(MPUtil.allEQMapPre( fangwuxinxi, "fangwuxinxi")); return R.ok().put("data", fangwuxinxiService.selectListView(ew));}/*** 查询*/@RequestMapping("/query")public R query(FangwuxinxiEntity fangwuxinxi){EntityWrapper< FangwuxinxiEntity> ew = new EntityWrapper< FangwuxinxiEntity>();ew.allEq(MPUtil.allEQMapPre( fangwuxinxi, "fangwuxinxi")); FangwuxinxiView fangwuxinxiView =  fangwuxinxiService.selectView(ew);return R.ok("查询房屋信息成功").put("data", fangwuxinxiView);}/*** 后端详情*/@RequestMapping("/info/{id}")public R info(@PathVariable("id") Long id){FangwuxinxiEntity fangwuxinxi = fangwuxinxiService.selectById(id);fangwuxinxi.setClicktime(new Date());fangwuxinxiService.updateById(fangwuxinxi);return R.ok().put("data", fangwuxinxi);}/*** 前端详情*/@IgnoreAuth@RequestMapping("/detail/{id}")public R detail(@PathVariable("id") Long id){FangwuxinxiEntity fangwuxinxi = fangwuxinxiService.selectById(id);fangwuxinxi.setClicktime(new Date());fangwuxinxiService.updateById(fangwuxinxi);return R.ok().put("data", fangwuxinxi);}/*** 后端保存*/@RequestMapping("/save")public R save(@RequestBody FangwuxinxiEntity fangwuxinxi, HttpServletRequest request){fangwuxinxi.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());//ValidatorUtils.validateEntity(fangwuxinxi);fangwuxinxiService.insert(fangwuxinxi);return R.ok();}/*** 前端保存*/@RequestMapping("/add")public R add(@RequestBody FangwuxinxiEntity fangwuxinxi, HttpServletRequest request){fangwuxinxi.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());//ValidatorUtils.validateEntity(fangwuxinxi);fangwuxinxiService.insert(fangwuxinxi);return R.ok();}/*** 修改*/@RequestMapping("/update")public R update(@RequestBody FangwuxinxiEntity fangwuxinxi, HttpServletRequest request){//ValidatorUtils.validateEntity(fangwuxinxi);fangwuxinxiService.updateById(fangwuxinxi);//全部更新return R.ok();}/*** 删除*/@RequestMapping("/delete")public R delete(@RequestBody Long[] ids){fangwuxinxiService.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<FangwuxinxiEntity> wrapper = new EntityWrapper<FangwuxinxiEntity>();if(map.get("remindstart")!=null) {wrapper.ge(columnName, map.get("remindstart"));}if(map.get("remindend")!=null) {wrapper.le(columnName, map.get("remindend"));}String tableName = request.getSession().getAttribute("tableName").toString();if(tableName.equals("fangzhu")) {wrapper.eq("fangzhuzhanghao", (String)request.getSession().getAttribute("username"));}int count = fangwuxinxiService.selectCount(wrapper);return R.ok().put("count", count);}/*** 前端智能排序*/@IgnoreAuth@RequestMapping("/autoSort")public R autoSort(@RequestParam Map<String, Object> params,FangwuxinxiEntity fangwuxinxi, HttpServletRequest request,String pre){EntityWrapper<FangwuxinxiEntity> ew = new EntityWrapper<FangwuxinxiEntity>();Map<String, Object> newMap = new HashMap<String, Object>();Map<String, Object> param = new HashMap<String, Object>();Iterator<Map.Entry<String, Object>> it = param.entrySet().iterator();while (it.hasNext()) {Map.Entry<String, Object> entry = it.next();String key = entry.getKey();String newKey = entry.getKey();if (pre.endsWith(".")) {newMap.put(pre + newKey, entry.getValue());} else if (StringUtils.isEmpty(pre)) {newMap.put(newKey, entry.getValue());} else {newMap.put(pre + "." + newKey, entry.getValue());}}params.put("sort", "clicktime");params.put("order", "desc");PageUtils page = fangwuxinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, fangwuxinxi), params), params));return R.ok().put("data", page);}/*** 协同算法（按收藏推荐）*/@RequestMapping("/autoSort2")public R autoSort2(@RequestParam Map<String, Object> params,FangwuxinxiEntity fangwuxinxi, HttpServletRequest request){String userId = request.getSession().getAttribute("userId").toString();String inteltypeColumn = "fangwuleixing";List<StoreupEntity> storeups = storeupService.selectList(new EntityWrapper<StoreupEntity>().eq("type", 1).eq("userid", userId).eq("tablename", "fangwuxinxi").orderBy("addtime", false));List<String> inteltypes = new ArrayList<String>();Integer limit = params.get("limit")==null?10:Integer.parseInt(params.get("limit").toString());List<FangwuxinxiEntity> fangwuxinxiList = new ArrayList<FangwuxinxiEntity>();//去重if(storeups!=null && storeups.size()>0) {for(StoreupEntity s : storeups) {fangwuxinxiList.addAll(fangwuxinxiService.selectList(new EntityWrapper<FangwuxinxiEntity>().eq(inteltypeColumn, s.getInteltype())));}}EntityWrapper<FangwuxinxiEntity> ew = new EntityWrapper<FangwuxinxiEntity>();params.put("sort", "id");params.put("order", "desc");PageUtils page = fangwuxinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, fangwuxinxi), params), params));List<FangwuxinxiEntity> pageList = (List<FangwuxinxiEntity>)page.getList();if(fangwuxinxiList.size()<limit) {int toAddNum = (limit-fangwuxinxiList.size())<=pageList.size()?(limit-fangwuxinxiList.size()):pageList.size();for(FangwuxinxiEntity o1 : pageList) {boolean addFlag = true;for(FangwuxinxiEntity o2 : fangwuxinxiList) {if(o1.getId().intValue()==o2.getId().intValue()) {addFlag = false;break;}}if(addFlag) {fangwuxinxiList.add(o1);if(--toAddNum==0) break;}}}page.setList(fangwuxinxiList);return R.ok().put("data", page);}}

预约看房

/*** 预约看房* 后端接口* @author * @email * @date 2022-04-10 15:56:44*/
@RestController
@RequestMapping("/yuyuekanfang")
public class YuyuekanfangController {@Autowiredprivate YuyuekanfangService yuyuekanfangService;/*** 后端列表*/@RequestMapping("/page")public R page(@RequestParam Map<String, Object> params,YuyuekanfangEntity yuyuekanfang,HttpServletRequest request){String tableName = request.getSession().getAttribute("tableName").toString();if(tableName.equals("fangzhu")) {yuyuekanfang.setFangzhuzhanghao((String)request.getSession().getAttribute("username"));}if(tableName.equals("yonghu")) {yuyuekanfang.setYonghuming((String)request.getSession().getAttribute("username"));}EntityWrapper<YuyuekanfangEntity> ew = new EntityWrapper<YuyuekanfangEntity>();PageUtils page = yuyuekanfangService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, yuyuekanfang), params), params));return R.ok().put("data", page);}/*** 前端列表*/@IgnoreAuth@RequestMapping("/list")public R list(@RequestParam Map<String, Object> params,YuyuekanfangEntity yuyuekanfang, HttpServletRequest request){EntityWrapper<YuyuekanfangEntity> ew = new EntityWrapper<YuyuekanfangEntity>();PageUtils page = yuyuekanfangService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, yuyuekanfang), params), params));return R.ok().put("data", page);}/*** 列表*/@RequestMapping("/lists")public R list( YuyuekanfangEntity yuyuekanfang){EntityWrapper<YuyuekanfangEntity> ew = new EntityWrapper<YuyuekanfangEntity>();ew.allEq(MPUtil.allEQMapPre( yuyuekanfang, "yuyuekanfang")); return R.ok().put("data", yuyuekanfangService.selectListView(ew));}/*** 查询*/@RequestMapping("/query")public R query(YuyuekanfangEntity yuyuekanfang){EntityWrapper< YuyuekanfangEntity> ew = new EntityWrapper< YuyuekanfangEntity>();ew.allEq(MPUtil.allEQMapPre( yuyuekanfang, "yuyuekanfang")); YuyuekanfangView yuyuekanfangView =  yuyuekanfangService.selectView(ew);return R.ok("查询预约看房成功").put("data", yuyuekanfangView);}/*** 后端详情*/@RequestMapping("/info/{id}")public R info(@PathVariable("id") Long id){YuyuekanfangEntity yuyuekanfang = yuyuekanfangService.selectById(id);return R.ok().put("data", yuyuekanfang);}/*** 前端详情*/@IgnoreAuth@RequestMapping("/detail/{id}")public R detail(@PathVariable("id") Long id){YuyuekanfangEntity yuyuekanfang = yuyuekanfangService.selectById(id);return R.ok().put("data", yuyuekanfang);}/*** 后端保存*/@RequestMapping("/save")public R save(@RequestBody YuyuekanfangEntity yuyuekanfang, HttpServletRequest request){yuyuekanfang.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());//ValidatorUtils.validateEntity(yuyuekanfang);yuyuekanfangService.insert(yuyuekanfang);return R.ok();}/*** 前端保存*/@RequestMapping("/add")public R add(@RequestBody YuyuekanfangEntity yuyuekanfang, HttpServletRequest request){yuyuekanfang.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());//ValidatorUtils.validateEntity(yuyuekanfang);yuyuekanfangService.insert(yuyuekanfang);return R.ok();}/*** 修改*/@RequestMapping("/update")public R update(@RequestBody YuyuekanfangEntity yuyuekanfang, HttpServletRequest request){//ValidatorUtils.validateEntity(yuyuekanfang);yuyuekanfangService.updateById(yuyuekanfang);//全部更新return R.ok();}/*** 删除*/@RequestMapping("/delete")public R delete(@RequestBody Long[] ids){yuyuekanfangService.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<YuyuekanfangEntity> wrapper = new EntityWrapper<YuyuekanfangEntity>();if(map.get("remindstart")!=null) {wrapper.ge(columnName, map.get("remindstart"));}if(map.get("remindend")!=null) {wrapper.le(columnName, map.get("remindend"));}String tableName = request.getSession().getAttribute("tableName").toString();if(tableName.equals("fangzhu")) {wrapper.eq("fangzhuzhanghao", (String)request.getSession().getAttribute("username"));}if(tableName.equals("yonghu")) {wrapper.eq("yonghuming", (String)request.getSession().getAttribute("username"));}int count = yuyuekanfangService.selectCount(wrapper);return R.ok().put("count", count);}}