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node_cron.js
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node_cron.js
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'use strict'
const _ = require('lodash');
const moment = require('moment');
const request = require('superagent');
const cheerio = require('cheerio');
const fs = require('fs');
const path = require('path');
let finalData = {};
let url = [{'key': 'ifeng', 'url': 'https://news.ifeng.com/c/special/7tPlDSzDgVk'}, {
'key': 'dingxiang',
'url': 'https://3g.dxy.cn/newh5/view/pneumonia'
}];
async function init() {
finalData['data'] = [];
await getUrl('ifeng');
console.info(finalData);
process.exit();
}
init();
async function getUrl(urlKey = '') {
let urlData = _.find(url, {'key': urlKey});
let tmpUrl = urlData['url'];
console.info("正在请求地址:" + JSON.stringify({tmpUrl}));
const res = await request.get(tmpUrl);
finalData = await ifeng(res);
console.info(finalData);
finalData = await getLocation(finalData);
fs.writeFileSync(path.join(__dirname, './', 'now.json'), JSON.stringify(finalData));
// console.info(fileFlag);
}
async function getLocation(data = {}) {
for (let k in data['data']) {
let city = data['data'][k]['name'] + "市";
console.info(city);
city = encodeURIComponent(data['data'][k]['name']);
let baiduUrl = "https://api.map.baidu.com/geocoder?address=" + city + "&output=json&key=f247cdb592eb43ebac6ccd27f796e2d2";
console.info(baiduUrl);
const res = await request.get(baiduUrl);
let bdData = JSON.parse(res.text);
let lnglat = {'lnglat': []};
console.info(bdData['result']['location']);
lnglat['lnglat'][0] = bdData['result']['location']['lng'] + '';
lnglat['lnglat'][1] = bdData['result']['location']['lat'] + '';
data['data'][k]['lnglat'] = lnglat;
}
return data;
}
async function ifeng(domData = {}) {
let scriptArr = [];
let res = domData;
const $ = cheerio.load(res.text, {decodeEntities: false});
let domLi = $('script').each(function (i, elem) {
let cou = $(this).html();
scriptArr.push(cou);
});
// console.info(scriptArr[3]);
let jsonString = scriptArr[3].replace("var allData =", "");
jsonString = jsonString.replace(/^\s+|\s+$/g, "");
jsonString = jsonString.substr(0, jsonString.length - 1);
// console.info(jsonString);
let jsonData = JSON.parse(jsonString);
let gn = jsonData['modules'][1]['data'][1];
let gw = jsonData['modules'][1]['data'][2]
let gnData = await getDataGn(gn);
let gwData = await getDataGn(gw);
writeFinalData(gnData);
writeFinalData(gwData);
let fileName = moment().format("YYYY-MM-DD_HHmm") + ".json";
let filePath = path.join(__dirname, './jsonData/', fileName);
let fileFlag = fs.existsSync(filePath);
if (!fileFlag) {
fs.writeFileSync(filePath, jsonString);
} else {
console.info("文件已存在:" + JSON.stringify({filePath}));
}
return finalData;
}
async function writeFinalData(data) {
for (let v of data) {
let obj = {};
obj['name'] = v['arr'][0];
obj['value'] = 0;
obj['remark'] = '';
if (!_.isEmpty(v['arr'][1])) {
obj['remark'] = v['arr'][1];
if (v['arr'][1].indexOf('确诊') != -1) obj['value'] = v['num'][0] * 1;
}
finalData['data'].push(obj);
}
}
async function getDataGn(gn) {
// console.info(gn['articleList']);
let returnData = [];
let creatTimeStr = '';
let d = gn['articleList'];
for (let k in d) {
let v = d[k];
if (k == 0) continue;
let str = v['title'];
let creatTimeFlag = str.indexOf('数据更新时');
if (creatTimeFlag != -1) {
creatTimeStr = str;
continue;
}
let arr = str.split(" ");
// console.info(arr);
let numStr = _.isEmpty(arr[1]) ? [] : arr[1].match(/\d+(.\d+)?/g);
returnData.push({'arr': arr, 'num': numStr});
// console.info(arr, numStr);
}
creatTimeStr = creatTimeStr.substr(8, 15);
if (!_.isEmpty(creatTimeStr)) {
finalData['creatTimeStr'] = creatTimeStr;
// console.info(creatTimeStr);
}
return returnData;
}