Java地圖專題課基本API BMapGLLib 地圖找房案例 MongoDB

本課程基于百度地圖技術，由基礎入門開始到應用實戰，適合零基礎入門學習。將企業項目中地圖相關常見應用場景的落地實戰，包括有地圖找房、輕騎小程序、金運物流等。同時講了基于Netty實現高性能的web服務，來處理高并發的問題。還講解了海量坐標數據處理解決方案。

學完本課程能夠收獲：百度地圖技術的應用、軌跡類場景、路線規劃場景，電子圍欄場景的開發，增長開發經驗。

導學

地圖場景與基礎API

案例1：地圖找房

案例2：輕騎項目

案例3：金運物流

高并發解決方案

海量數據存儲解決方案

地圖基礎API與搜索

地圖技術概述

地圖應用場景

常用地圖服務的比較

百度地圖基本API應用

百度地圖提供了各種平臺的SDK，地址：百度地圖開放平臺 | 百度地圖API SDK | 地圖開發如下：

賬號與API準備

設置應用名稱與類型

JavaScript百度地圖API項目

案例1：創建地圖

創建地圖的基本步驟如下：

編寫HTML頁面的基礎代碼

引入百度地圖API文件

初始化地圖邏輯以及設置各種參數

參考官方文檔：

jspopularGL | 百度地圖API SDK

頁面效果：

<!DOCTYPE html>
<html>
<head><meta name="viewport" content="initial-scale=1.0, user-scalable=no" /><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Baidu Map </title><style type="text/css">html{height:100%}body{height:100%;margin:0px;padding:0px}#container{height:100%}</style><script type="text/javascript" src="https://api.map.baidu.com/api?v=1.0&type=webgl&ak=1GH6ZiAb79MTpfRzmYDpTUPpB7SVImfN"></script>
</head>
<body>
<div id="container"></div>
<script type="text/javascript">var map = new BMapGL.Map("container");          // 創建地圖實例var point = new BMapGL.Point(116.404, 39.915);  // 創建點坐標map.centerAndZoom(point, 15);                 // 初始化地圖，設置中心點坐標和地圖級別map.enableScrollWheelZoom(true);     //開啟鼠標滾輪縮放map.setHeading(64.5);   //設置地圖旋轉角度map.setTilt(73);       //設置地圖的傾斜角度var scaleCtrl = new BMapGL.ScaleControl();  // 添加比例尺控件map.addControl(scaleCtrl);var zoomCtrl = new BMapGL.ZoomControl();  // 添加縮放控件map.addControl(zoomCtrl);var cityCtrl = new BMapGL.CityListControl();  // 添加城市列表控件map.addControl(cityCtrl);
</script>
</body>
</html>

添加覆蓋物

<!DOCTYPE html>
<html>
<head><meta name="viewport" content="initial-scale=1.0, user-scalable=no" /><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Baidu Map - 覆蓋物</title><style type="text/css">html{height:100%}body{height:100%;margin:0px;padding:0px}#container{height:100%}</style><script type="text/javascript" src="https://api.map.baidu.com/api?v=1.0&type=webgl&ak=LHHGlmhcb4ENvIXpR9QQ2tBYa6ooUowX"></script>
</head>
<body>
<div id="container"></div>
<script type="text/javascript">var map = new BMapGL.Map("container");          // 創建地圖實例var point = new BMapGL.Point(116.404, 39.915);  // 創建點坐標map.centerAndZoom(point, 15);                 // 初始化地圖，設置中心點坐標和地圖級別map.enableScrollWheelZoom(true);     //開啟鼠標滾輪縮放// var  point2 = new BMapGL.Point(116.380194,39.922018);// var marker = new BMapGL.Marker(point2);        // 創建標注// map.addOverlay(marker);                     // 將標注添加到地圖中// var myIcon = new BMapGL.Icon("logo.png", new BMapGL.Size(180, 53), {//     // 指定定位位置。//     // 當標注顯示在地圖上時，其所指向的地理位置距離圖標左上//     // 角各偏移10像素和25像素。您可以看到在本例中該位置即是//     // 圖標中央下端的尖角位置。//     anchor: new BMapGL.Size(-10, 12),//     // 設置圖片偏移。//     // 當您需要從一幅較大的圖片中截取某部分作為標注圖標時，您//     // 需要指定大圖的偏移位置，此做法與css sprites技術類似。//     imageOffset: new BMapGL.Size(0, 0)   // 設置圖片偏移// });// // 創建標注對象并添加到地圖// var marker = new BMapGL.Marker(point, {icon: myIcon});// map.addOverlay(marker);//// marker.addEventListener("click", function(){//     alert("您點擊了標注");// });// 折線var polyline = new BMapGL.Polyline([new BMapGL.Point(116.399, 39.910),new BMapGL.Point(116.405, 39.920),new BMapGL.Point(116.425, 39.900)], {strokeColor:"blue", strokeWeight:2, strokeOpacity:0.8});map.addOverlay(polyline);//多邊形var polygon = new BMapGL.Polygon([new BMapGL.Point(116.387112,39.920977),new BMapGL.Point(116.385243,39.913063),new BMapGL.Point(116.394226,39.917988),new BMapGL.Point(116.401772,39.921364),new BMapGL.Point(116.41248,39.927893)], {strokeColor:"blue", strokeWeight:2, strokeOpacity:0.5});map.addOverlay(polygon);//圓形var circle = new BMapGL.Circle(point , 1000, {strokeColor:"red",strokeOpacity:0.8,strokeWeight:3});map.addOverlay(circle);</script>
</body>
</html>

地圖事件

<!DOCTYPE html>
<html>
<head><meta name="viewport" content="initial-scale=1.0, user-scalable=no" /><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Baidu Map - 事件</title><style type="text/css">html{height:100%}body{height:100%;margin:0px;padding:0px}#container{height:100%}</style><script type="text/javascript" src="https://api.map.baidu.com/api?v=1.0&type=webgl&ak=LHHGlmhcb4ENvIXpR9QQ2tBYa6ooUowX"></script>
</head>
<body>
<div id="container"></div>
<script type="text/javascript">var map = new BMapGL.Map("container");          // 創建地圖實例var point = new BMapGL.Point(116.404, 39.915);  // 創建點坐標map.centerAndZoom(point, 15);                 // 初始化地圖，設置中心點坐標和地圖級別map.enableScrollWheelZoom(true);     //開啟鼠標滾輪縮放// map.addEventListener('click', function(e) {//     alert('click!')// });map.addEventListener('click', function(e) {alert('點擊的經緯度：' + e.latlng.lng + ', ' + e.latlng.lat);var mercator = map.lnglatToMercator(e.latlng.lng, e.latlng.lat);alert('點的墨卡托坐標：' + mercator[0] + ', ' + mercator[1]);});</script>
</body>
</html>

地圖樣式

<!DOCTYPE html>
<html>
<head><meta name="viewport" content="initial-scale=1.0, user-scalable=no" /><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Baidu Map - 變更地圖樣式</title><style type="text/css">html{height:100%}body{height:100%;margin:0px;padding:0px}#container{height:100%}</style><script type="text/javascript" src="https://api.map.baidu.com/api?v=1.0&type=webgl&ak=LHHGlmhcb4ENvIXpR9QQ2tBYa6ooUowX"></script>
</head>
<body>
<div id="container"></div>
<script type="text/javascript">var map = new BMapGL.Map("container");          // 創建地圖實例var point = new BMapGL.Point(116.404, 39.915);  // 創建點坐標map.centerAndZoom(point, 15);                 // 初始化地圖，設置中心點坐標和地圖級別map.enableScrollWheelZoom(true);     //開啟鼠標滾輪縮放map.setMapType(BMAP_EARTH_MAP);      // 設置地圖類型為地球模式</script>
</body>
</html>

地圖檢索

<!DOCTYPE html>
<html>
<head><meta name="viewport" content="initial-scale=1.0, user-scalable=no" /><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Baidu Map - 搜索興趣點</title><style type="text/css">html{height:100%}body{height:100%;margin:0px;padding:0px}#container{height:100%}</style><script type="text/javascript" src="https://api.map.baidu.com/api?v=1.0&type=webgl&ak=LHHGlmhcb4ENvIXpR9QQ2tBYa6ooUowX"></script>
</head>
<body>
<div id="container"></div>
<script type="text/javascript">var map = new BMapGL.Map("container");          // 創建地圖實例var point = new BMapGL.Point(116.404, 39.915);  // 創建點坐標map.centerAndZoom(point, 15);                 // 初始化地圖，設置中心點坐標和地圖級別map.enableScrollWheelZoom(true);     //開啟鼠標滾輪縮放var local = new BMapGL.LocalSearch(map, {renderOptions:{map: map},pageCapacity:100});local.search("銀行");
</script>
</body>
</html>

<!DOCTYPE html>
<html>
<head><meta name="viewport" content="initial-scale=1.0, user-scalable=no" /><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Baidu Map - 圓形范圍搜索興趣點</title><style type="text/css">html{height:100%}body{height:100%;margin:0px;padding:0px}#container{height:100%}</style><script type="text/javascript" src="https://api.map.baidu.com/api?v=1.0&type=webgl&ak=LHHGlmhcb4ENvIXpR9QQ2tBYa6ooUowX"></script>
</head>
<body>
<div id="container"></div>
<script type="text/javascript">var map = new BMapGL.Map("container");          // 創建地圖實例var point = new BMapGL.Point(116.404, 39.915);  // 創建點坐標map.centerAndZoom(point, 15);                 // 初始化地圖，設置中心點坐標和地圖級別map.enableScrollWheelZoom(true);     //開啟鼠標滾輪縮放var circle = new BMapGL.Circle(point,2000,{fillColor:"blue", strokeWeight: 1 ,fillOpacity: 0.3, strokeOpacity: 0.3});map.addOverlay(circle);var local =  new BMapGL.LocalSearch(map, {renderOptions: {map: map, autoViewport: false}});local.searchNearby('景點',point,2000);</script>
</body>
</html>

數據可視化

MapV開發文檔

百度地圖web API應用

地址： web服務API | 百度地圖API SDK

案例一：坐標轉換

package cn.itcast.baidumap;
import cn.hutool.core.util.StrUtil;
import cn.hutool.http.HttpRequest;
import org.junit.Test;public class TestBaiduWebApi {private String ak = "64Ut0Peo2Dsb1l43FRl1nReM0tBdpE3L";/*** 測試坐標轉換服務*/@Testpublic void testGeoconv() {String url = "https://api.map.baidu.com/geoconv/v1/?coords=114.21892734521,29.575429778924&from=1&to=5&ak={}";url = StrUtil.format(url, ak);//發起get請求String body = HttpRequest.get(url).execute().body();System.out.println(body);}/*** 測試IP定位服務*/@Testpublic void testLocation(){String url = "https://api.map.baidu.com/location/ip?ak={}&ip=140.206.149.83&coor=bd09ll";url = StrUtil.format(url, ak);//發起get請求String body = HttpRequest.get(url).execute().body();System.out.println(body);}/*** 測試地點輸入提示服務*/@Testpublic void testSuggestion(){String url = "https://api.map.baidu.com/place/v2/suggestion?query=清華大&region=北京&city_limit=true&output=json&ak={}";url = StrUtil.format(url, ak);//發起get請求String body = HttpRequest.get(url).execute().body();System.out.println(body);}/*** 測試路線規劃*/@Testpublic void testDriving(){String url = "https://api.map.baidu.com/direction/v2/driving?alternatives=1&origin=40.009645,116.333374&destination=39.937016,116.453576&ak={}";url = StrUtil.format(url, ak);//發起get請求String body = HttpRequest.get(url).execute().body();System.out.println(body);}
}

案例二：IP定位服務

案例三：地點輸入提示服務

案例四：路線規劃

綜合案例：地圖找房

BMapGLLib

GitHub - huiyan-fe/BMapGLLib: 百度地圖JSAPI GL版JavaScript開源工具庫

<!DOCTYPE html>
<html>
<head><meta name="viewport" content="initial-scale=1.0, user-scalable=no"/><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>地圖找房 - 地圖搜索 </title><style type="text/css">html {height: 100%}body {height: 100%;margin: 0px;padding: 0px}#container {height: 100%}.district {width: 84px;height: 84px;line-height: 16px;font-size: 12px;display: flex;flex-direction: column;justify-content: center;border: 1px solid transparent;border-radius: 50%;overflow: hidden;text-align: center;font-family: PingFangSC-Semibold;color: #fff;background: #00ae66 !important;box-sizing: border-box;}.district i {font-size: 12px;color: hsla(0, 0%, 100%, .7);line-height: 12px;margin-top: 4px;font-style: normal;}#platform > div > div > div {background: none !important;}</style><script type="text/javascript" src="jquery-3.6.0.min.js"></script><script type="text/javascript"src="http://api.map.baidu.com/api?v=1.0&type=webgl&ak=LHHGlmhcb4ENvIXpR9QQ2tBYa6ooUowX"></script><script src="http://mapopen.bj.bcebos.com/github/BMapGLLib/RichMarker/src/RichMarker.min.js"></script>
</head>
<body>
<div id="container"></div>
<script type="application/javascript">function showInfo(map) {let bound = map.getBounds(); //可視范圍矩形坐標，其中sw表示矩形區域的西南角，參數ne表示矩形區域的東北角let zoom = map.getZoom(); //縮放級別console.log(bound);console.log(zoom);$.ajax({url: "/house/search",data: {maxLongitude: bound.ne.lng,minLongitude: bound.sw.lng,maxLatitude: bound.ne.lat,minLatitude: bound.sw.lat,zoom: zoom},success: function (data) {showMapMarker(data, map);}});//測試效果：// let data = [{"name":"徐匯","price":"1028.43","total":"6584","longitude":121.43676,"latitude":31.18831},{"name":"黃浦","price":"1016.19","total":"7374","longitude":121.49295,"latitude":31.22337},{"name":"長寧","price":"1008.34","total":"4380","longitude":121.42462,"latitude":31.22036},{"name":"靜安","price":"1005.34","total":"8077","longitude":121.4444,"latitude":31.22884},{"name":"普陀","price":"1026.14","total":"5176","longitude":121.39703,"latitude":31.24951},{"name":"金山","price":"1099.67","total":"6","longitude":121.34164,"latitude":30.74163},{"name":"松江","price":"1017.71","total":"14","longitude":121.22879,"latitude":31.03222},{"name":"青浦","price":"1038.11","total":"751","longitude":121.12417,"latitude":31.14974},{"name":"奉賢","price":"1108.63","total":"35","longitude":121.47412,"latitude":30.9179},{"name":"浦東","price":"1030.22","total":"8294","longitude":121.5447,"latitude":31.22249},{"name":"嘉定","price":"1041.45","total":"1620","longitude":121.2655,"latitude":31.37473},{"name":"寶山","price":"1050.65","total":"102","longitude":121.4891,"latitude":31.4045},{"name":"閔行","price":"1027.15","total":"941","longitude":121.38162,"latitude":31.11246},{"name":"楊浦","price":"1007.78","total":"2747","longitude":121.526,"latitude":31.2595},{"name":"虹口","price":"1025.81","total":"4187","longitude":121.48162,"latitude":31.27788}];// showMapMarker(data, map);}//顯示覆蓋物function showMapMarker(data, map) {for (let vo of data) {let html = "<div class=\"district\">" + vo.name + "<span>" + vo.price + "萬</span><i>" + vo.total + "套</i></div>";let marker = new BMapGLLib.RichMarker(html, new BMapGL.Point(vo.longitude, vo.latitude));map.addOverlay(marker);}}//清除覆蓋物function clearMapMarker(map) {let markers = map.getOverlays(); //獲取到地圖上所有的覆蓋物for (let marker of markers) { //循環將其刪除map.removeOverlay(marker);}}$(function () {//地圖默認位置，上海市let defaultX = 121.48130241985999;let defaultY = 31.235156971414239;let defaultZoom = 12; //默認縮放比例let map = new BMapGL.Map("container");          // 創建地圖實例let point = new BMapGL.Point(defaultX, defaultY);  // 創建點坐標map.centerAndZoom(point, defaultZoom);                 // 初始化地圖，設置中心點坐標和地圖級別map.enableScrollWheelZoom(true);     //開啟鼠標滾輪縮放//顯示比例尺map.addControl(new BMapGL.ScaleControl({anchor: BMAP_ANCHOR_BOTTOM_RIGHT}));map.addEventListener("dragstart", () => {  //拖動開始事件clearMapMarker(map)});map.addEventListener("dragend", () => { //拖動結束事件showInfo(map)});map.addEventListener("zoomstart", () => { //縮放開始事件clearMapMarker(map)});map.addEventListener("zoomend", () => { //縮放結束事件showInfo(map)});//初始顯示數據showInfo(map);});
</script>
</body>
</html>

通過docker安裝MongoDB

#拉取鏡像
docker pull mongo:4.0.3#創建容器
docker create --name mongodb-server -p 27017:27017 -v mongodb-data:/data/db mongo:4.0.3 --auth#啟動容器
docker start mongodb-server#進入容器
docker exec -it mongodb-server /bin/bash#進入admin數據庫
mongo
use admin#添加管理員，其擁有管理用戶和角色的權限
db.createUser({ user: 'root', pwd: 'root', roles: [ { role: "root", db: "admin" } ] })
#退出后進行認證#進行認證
mongo -u "root" -p "root" --authenticationDatabase "admin"#通過admin添加普通用戶
use admin
db.createUser({ user: 'house', pwd: 'oudqBFGmGY8pU6WS', roles: [ { role: "readWrite", db: "house" } ] });#通過tanhua用戶登錄進行測試
mongo -u "house" -p "oudqBFGmGY8pU6WS" --authenticationDatabase "admin"#發現可以正常進入控制臺進行操作

構造數據

爬蟲代碼

package cn.itcast.baidumap.wm;import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import cn.itcast.baidumap.pojo.BusinessCircle;
import cn.itcast.baidumap.pojo.Community;
import cn.itcast.baidumap.pojo.District;
import cn.itcast.baidumap.util.BaiduApiUtil;
import org.bson.types.ObjectId;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.geo.GeoJsonPoint;
import us.codecraft.webmagic.Page;
import us.codecraft.webmagic.Site;
import us.codecraft.webmagic.processor.PageProcessor;public class CommunityPageProcessor implements PageProcessor {private District district;private BusinessCircle businessCircle;private MongoTemplate mongoTemplate;public CommunityPageProcessor(District district, BusinessCircle businessCircle, MongoTemplate mongoTemplate) {this.district = district;this.businessCircle = businessCircle;this.mongoTemplate = mongoTemplate;}@Overridepublic void process(Page page) {Document html = Jsoup.parse(page.getRawText()); //解析htmlElements elements = html.select("div.info div.title a"); //獲取數據鏈接對象for (Element element : elements) {Community community = new Community();community.setId(ObjectId.get());community.setName(element.text()); //獲取小區名稱community.setLianJiaUrl(element.attr("href")); //獲取鏈接community.setBusinessCircleCode(this.businessCircle.getCode());community.setDistrictCode(this.district.getCode());String address = StrUtil.format("上海市{}{}{}",this.district.getName(),this.businessCircle.getName(),community.getName());//通過百度地圖api查詢地址對應的經緯度double[] coordinate = BaiduApiUtil.queryCoordinateByAddress(address);community.setLocation(new GeoJsonPoint(coordinate[0], coordinate[1]));this.mongoTemplate.save(community);}//設置分頁String pageData = html.select("div[page-data]").attr("page-data");JSONObject pageJson = JSONUtil.parseObj(pageData);Integer totalPage = pageJson.getInt("totalPage", 1);Integer curPage = pageJson.getInt("curPage", 1);if (curPage < totalPage) {String url = businessCircle.getLianJiaUrl() + "pg" + (curPage + 1);page.addTargetRequest(url);}}@Overridepublic Site getSite() {//失敗重試3次，每次抓取休息200毫秒return Site.me().setRetryTimes(3).setSleepTime(200);}
}

MongoDB的聚合操作

實現搜索—分析

POJO類、Vo類

Controller

package cn.itcast.baidumap.controller;import cn.itcast.baidumap.service.HouseSearchService;
import cn.itcast.baidumap.vo.HouseResultVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;import java.util.List;@RequestMapping("house/search")
@RestController
public class HouseSearchController {@Autowiredprivate HouseSearchService houseSearchService;/*** 地圖找房搜索服務** @param maxLongitude 最大經度* @param minLongitude 最小經度* @param maxLatitude  最大緯度* @param minLatitude  最小緯度* @param zoom         地圖縮放比例值* @return*/@GetMappingpublic List<HouseResultVo> search(@RequestParam("maxLongitude") Double maxLongitude,@RequestParam("minLongitude") Double minLongitude,@RequestParam("maxLatitude") Double maxLatitude,@RequestParam("minLatitude") Double minLatitude,@RequestParam("zoom") Double zoom) {return this.houseSearchService.search(maxLongitude, minLongitude, maxLatitude, minLatitude, zoom);}
}

Service

package cn.itcast.baidumap.service;import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.convert.Convert;
import cn.hutool.core.util.NumberUtil;
import cn.itcast.baidumap.pojo.BusinessCircle;
import cn.itcast.baidumap.pojo.Community;
import cn.itcast.baidumap.pojo.District;
import cn.itcast.baidumap.pojo.House;
import cn.itcast.baidumap.vo.HouseResultVo;
import com.mongodb.internal.operation.AggregateOperation;
import org.bson.types.ObjectId;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.geo.Box;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.aggregation.*;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;import java.util.ArrayList;
import java.util.Collections;
import java.util.List;@Service
public class HouseSearchService {@Autowiredprivate MongoTemplate mongoTemplate;/*** 地圖找房搜索服務** @param maxLongitude 最大經度* @param minLongitude 最小經度* @param maxLatitude  最大緯度* @param minLatitude  最小緯度* @param zoom         地圖縮放比例值* @return*/public List<HouseResultVo> search(Double maxLongitude,Double minLongitude,Double maxLatitude,Double minLatitude,Double zoom) {//收集聚合查詢條件List<AggregationOperation> operationList = new ArrayList<>();//在可視范圍內搜索Box box = new Box(new double[]{maxLongitude, maxLatitude}, new double[]{minLongitude, minLatitude});MatchOperation matchOperation = Aggregation.match(Criteria.where("location").within(box));operationList.add(matchOperation);int type;GroupOperation groupOperation;//根據地圖的縮放比例進行分組if (zoom < 13.5) { //2公里以上//按照行政區分組groupOperation = Aggregation.group("districtCode");type = 1;} else if (zoom < 15.5) { //200米以上//按照商圈分組groupOperation = Aggregation.group("businessCircleCode");type = 2;} else { //200以下//按照小區分組groupOperation = Aggregation.group("communityId");type = 3;}groupOperation = groupOperation.count().as("total").avg("price").as("price");operationList.add(groupOperation);//生成最終的聚合條件Aggregation aggregation = Aggregation.newAggregation(operationList);//執行查詢AggregationResults<HouseResultVo> aggregationResults = this.mongoTemplate.aggregate(aggregation, House.class, HouseResultVo.class);List<HouseResultVo> houseResultVoList = aggregationResults.getMappedResults();if (CollUtil.isEmpty(houseResultVoList)) {return Collections.emptyList();}//填充數據switch (type) {case 1: {//查詢行政區數據for (HouseResultVo houseResultVo : houseResultVoList) {District district = this.queryDistrictByCode(Convert.toInt(houseResultVo.getCode()));houseResultVo.setName(district.getName());houseResultVo.setLongitude(district.getLocation().getX());houseResultVo.setLatitude(district.getLocation().getY());//價格保留2位小數houseResultVo.setPrice(NumberUtil.roundStr(houseResultVo.getPrice(), 2));}break;}case 2: {//查詢商圈數據for (HouseResultVo houseResultVo : houseResultVoList) {BusinessCircle businessCircle = this.queryBusinessCircleByCode(Convert.toInt(houseResultVo.getCode()));houseResultVo.setName(businessCircle.getName());houseResultVo.setLongitude(businessCircle.getLocation().getX());houseResultVo.setLatitude(businessCircle.getLocation().getY());//價格保留2位小數houseResultVo.setPrice(NumberUtil.roundStr(houseResultVo.getPrice(), 2));}break;}case 3: {//查詢小區數據for (HouseResultVo houseResultVo : houseResultVoList) {Community community = this.queryCommunityById(new ObjectId(houseResultVo.getCode()));houseResultVo.setName(community.getName());houseResultVo.setLongitude(community.getLocation().getX());houseResultVo.setLatitude(community.getLocation().getY());//價格保留2位小數houseResultVo.setPrice(NumberUtil.roundStr(houseResultVo.getPrice(), 2));}break;}default: {return Collections.emptyList();}}return houseResultVoList;}/*** 根據code查詢行政區數據** @param code* @return*/private District queryDistrictByCode(Integer code) {Query query = Query.query(Criteria.where("code").is(code));return this.mongoTemplate.findOne(query, District.class);}/*** 根據code查詢商圈數據** @param code* @return*/private BusinessCircle queryBusinessCircleByCode(Integer code) {Query query = Query.query(Criteria.where("code").is(code));return this.mongoTemplate.findOne(query, BusinessCircle.class);}/*** 根據code查詢小區數據** @return*/private Community queryCommunityById(ObjectId id) {return this.mongoTemplate.findById(id, Community.class);}
}