zhouhai
4 years ago
2 changed files with 321 additions and 0 deletions
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{ |
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"name": "gisserver", |
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"version": "1.0.0", |
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"description": "", |
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"main": "server.js", |
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"scripts": { |
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"test": "echo \"Error: no test specified\" && exit 1" |
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}, |
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"author": "", |
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"license": "ISC", |
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"dependencies": { |
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"body-parser": "^1.19.0", |
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"express": "^4.17.1", |
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"mysql": "^2.18.1", |
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"pg": "^8.6.0" |
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} |
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} |
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@ -0,0 +1,304 @@
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const express = require('express'); |
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var bodyParser = require("body-parser");
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// var pg = require('pg');
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var mysql = require('mysql'); |
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const app = express(); |
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const port = 8080 |
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// var conString = "postgres://postgres:postgres@localhost/gisdb";
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// var conString = {
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// host: "139.9.239.248",
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// port: "4001",
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// user: "root",
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// password: "pUxtaIoE!1^s@vDJ",
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// database: "air"
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// };
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var conString = { |
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host: "124.71.210.242", |
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port: "4000", |
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user: "air", |
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password: "air123456", |
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database: "air" |
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}; |
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app.use(bodyParser.urlencoded({ extended: false })); |
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app.use(bodyParser.json()); |
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app.all('*', function(req, res, next) { |
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//设为指定的域
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res.header('Access-Control-Allow-Origin', "*"); |
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res.header("Access-Control-Allow-Headers", "X-Requested-With"); |
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res.header('Access-Control-Allow-Headers', 'Content-Type'); |
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res.header("Access-Control-Allow-Methods", "PUT,POST,GET,DELETE,OPTIONS"); |
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res.header('Access-Control-Allow-Credentials', true); |
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res.header("X-Powered-By", ' 3.2.1'); |
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next(); |
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}); |
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app.get('/', (req, res) => res.send('Hello World!')) |
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// 根据定位经纬度范围行政区数据
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// http://localhost:8090/getRegionByLocation?lon=106.5682&lat=29.6267
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app.get('/getRegionByLocation', (req, res) => { |
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var lon = req.query.lon || ""; |
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var lat = req.query.lat || ""; |
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if (lon == "" || lat == "") { |
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res.send(`参数错误!
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示例： http://localhost:8090/getRegionByLocation?lon=106.5682&lat=29.6267
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`);
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return; |
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} |
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// var client = mysql.createConnection(conString);
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var client = mysql.createConnection(conString); |
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client.connect(function (err) { |
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if (err) { |
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return console.error('连接数据库失败', err); |
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} else { |
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console.info('连接数据库成功'); |
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} |
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var sql = `select *,st_astext(geom) as geom from xingzhengqu`
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sqlQueryPromise(sql, client) |
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.then((result) => { |
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// console.log(result)
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res.send(result); |
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client.end(); |
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}) |
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.catch((err)=>{ |
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res.send(err); |
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client.end(); |
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}); |
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}); |
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}) |
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// 根据定位经纬度返回3公里范围内的设施数据
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// http://localhost:8090/getFacilitiesByLocation?lon=106.5682&lat=29.6267
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app.get('/getFacilitiesByLocation', (req, res) => { |
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var lon = req.query.lon || ""; |
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var lat = req.query.lat || ""; |
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var radius = req.query.radius || 3000; |
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if (lon == "" || lat == "") { |
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res.send(`参数错误!
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示例： http://localhost:8090/getFacilitiesByLocation?lon=106.5682&lat=29.6267
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`);
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return; |
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} |
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var client = mysql.createConnection(conString); |
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client.connect(function (err) { |
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if (err) { |
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return console.error('连接数据库失败', err); |
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} |
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var sql = `SELECT *,st_astext(geom) as geom1 from facilities where ST_Distance_Sphere(st_geomfromtext('POINT(${lat} ${lon})', 4326), ST_SRID(geom,4326)) < ${radius}` |
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sqlQueryPromise(sql, client) |
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.then((result) => { |
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// console.log(result)
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res.send(result); |
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client.end(); |
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}) |
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.catch((err)=>{ |
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res.send(err); |
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client.end(); |
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}); |
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}); |
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}) |
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// 根据定位经纬度返回5公里范围内的大组团小组团
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// http://localhost:8090/getTypeRegionByLocation?lon=106.5682&lat=29.6267&type=0
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app.get('/getTypeRegionByLocation', (req, res) => { |
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var lon = req.query.lon || ""; |
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var lat = req.query.lat || ""; |
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var type = req.query.type || "0"; |
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var radius = req.query.radius || 5000000; |
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if (lon == "" || lat == "") { |
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res.send(`参数错误!
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示例： http://localhost:8090/getTypeRegionByLocation?lon=106.5682&lat=29.6267&type=0
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`);
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return; |
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} |
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var tableName = type == "0" ? "xiaozutuan" : "dazutuan" |
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var client = mysql.createConnection(conString); |
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client.connect(function (err) { |
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if (err) { |
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return console.error('连接数据库失败', err); |
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} |
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var sql = `SELECT *,st_astext(geom) as geom from ${tableName} `; |
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sqlQueryPromise(sql, client) |
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.then((result) => { |
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res.send(result); |
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client.end(); |
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}) |
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.catch((err)=>{ |
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res.send(err); |
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client.end(); |
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}); |
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}); |
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}) |
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// 获取环线数据
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// http://localhost:8090/getLoopLine?lon=106.5682&lat=29.6267&type=0
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app.get('/getLoopLine', (req, res) => { |
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var client = mysql.createConnection(conString); |
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client.connect(function (err) { |
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if (err) { |
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return console.error('连接数据库失败', err); |
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} |
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var sql = `SELECT *,st_astext(geom) as geom from huanxian`; |
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sqlQueryPromise(sql, client) |
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.then((result) => { |
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res.send(result); |
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client.end(); |
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}) |
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.catch((err)=>{ |
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res.send(err); |
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client.end(); |
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}); |
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}); |
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}) |
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// 获取拟挂牌地块数据
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app.get('/getLandToList', (req, res) => { |
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var lon = req.query.lon || ""; |
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var lat = req.query.lat || ""; |
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var radius = req.query.radius || 5000000; |
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if (lon == "" || lat == "") { |
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res.send(`参数错误!
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示例： http://localhost:8090/getLandToList?lon=106.5682&lat=29.6267
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`);
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return; |
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} |
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var client = mysql.createConnection(conString); |
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client.connect(function (err) { |
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if (err) { |
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return console.error('连接数据库失败', err); |
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} |
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var sql = `SELECT *,st_astext(st_centroid(geom)) as centerPoint,st_astext(geom) as geom from land_to_list_lon_lat
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where geom is not null` |
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sqlQueryPromise(sql, client) |
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.then((result) => { |
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// console.log(result)
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res.send(result); |
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client.end(); |
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}) |
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.catch((err)=>{ |
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res.send(err); |
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client.end(); |
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}); |
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}); |
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}) |
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// 获取挂牌中数据
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app.get('/getLandListing', (req, res) => { |
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var lon = req.query.lon || ""; |
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var lat = req.query.lat || ""; |
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var radius = req.query.radius || 5000000; |
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if (lon == "" || lat == "") { |
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res.send(`参数错误!
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示例： http://localhost:8090/getLandListing?lon=106.5682&lat=29.6267
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`);
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return; |
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} |
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var client = mysql.createConnection(conString); |
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client.connect(function (err) { |
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if (err) { |
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return console.error('连接数据库失败', err); |
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} |
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var sql = `
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SELECT b.auction_date,a.*,st_astext(st_centroid(a.geom)) as centerPoint,st_astext(a.geom) as geom from land_listed_lon_lat a |
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left join |
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land_listed b |
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on a.land_listed_id = b.land_listed_id |
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where geom is not null` |
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sqlQueryPromise(sql, client) |
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.then((result) => { |
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// console.log(result)
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for(var i = 0; i < result.length; i++) { |
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var item = result[i] |
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if (!item.auction_date) item.status = '挂牌中'; |
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if (item.auction_date && new Date(item.auction_date).getTime() < new Date().getTime()) { |
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item.status = '已出让'; |
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result.splice(i, 1); |
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i--; |
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} else { |
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item.status = '挂牌中'; |
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} |
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} |
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res.send(result); |
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client.end(); |
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}) |
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.catch((err)=>{ |
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res.send(err); |
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client.end(); |
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}); |
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}); |
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}) |
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// 获取出让地块数据
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app.get('/getLandList', (req, res) => { |
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var lon = req.query.lon || ""; |
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var lat = req.query.lat || ""; |
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var radius = req.query.radius || 5000000; |
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var start = req.query.start || "1900-01-01"; |
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var end = req.query.end || "9999-01-01"; |
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if (lon == "" || lat == "") { |
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res.send(`参数错误!
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示例： http://localhost:8090/getLandList?lon=106.5682&lat=29.6267&type=0
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`);
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return; |
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} |
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var client = mysql.createConnection(conString); |
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client.connect(function (err) { |
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if (err) { |
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return console.error('连接数据库失败', err); |
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} |
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var sql = `SELECT b.auction_date,st_astext(st_centroid(a.geom)) as centerPoint,a.*,st_astext(a.geom) as geom from land_listed_lon_lat a
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left join |
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land_listed b |
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on a.land_listed_id = b.land_listed_id
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where geom is not null` |
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sqlQueryPromise(sql, client) |
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.then((result) => { |
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// console.log(result)
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for(var i = 0; i < result.length; i++) { |
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var item = result[i] |
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if (item.auction_date && new Date(item.auction_date).getTime() < new Date().getTime()) { |
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item.status = '已出让'; |
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if (new Date(item.auction_date).getTime() > new Date(end).getTime() || new Date(item.auction_date).getTime() < new Date(start).getTime()) { |
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result.splice(i, 1); |
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i--; |
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} |
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} else { |
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item.status = '挂牌中'; |
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result.splice(i, 1); |
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i--; |
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} |
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} |
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res.send(result); |
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client.end(); |
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}) |
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.catch((err)=>{ |
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res.send(err); |
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client.end(); |
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}); |
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}); |
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}) |
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function sqlQueryPromise(sql, client) { |
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return new Promise((resolve, reject)=>{ |
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client.query(sql, function (err, data, fields) { |
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if (err) { |
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reject(err); |
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} else { |
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resolve(data); |
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} |
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}) |
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}) |
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} |
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app.listen(port, () => console.log(`Example app listening on port ${port}!`)) |
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