获取最新中央气象台降水预报图片数据

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获取最新中央气象台降水预报图片数据

JS版

import axios from "axios";
import * as cheerio from "cheerio";const BASE_URL = "http://www.nmc.cn";
const SOURCE_URL = BASE_URL + "/publish/precipitation/1-day.html";
const BASE_CLASS_NAME =".container .row .col-xs-10 .bgwhite .p-wrap .p-nav.nav2 ul li a";
const IMAGE_ID = "#imgpath";function getHour(url) {if (url != undefined) {let fileName = url.substring(url.lastIndexOf("_") + 1,url.lastIndexOf("."));let index = url.lastIndexOf(".")let hour = url.substring(index - 5, index) / 100;return hour;}return "";
}async function getBaseUrl() {const response = (await axios.get(SOURCE_URL)).data;const $ = cheerio.load(response);const featuredUrls = $(BASE_CLASS_NAME);let linkUrls = [];for (let i = 0; i < featuredUrls.length; i++) {let linkUrl = $(featuredUrls[i]).attr("href");let url = BASE_URL + linkUrl;linkUrls.push(url);}let imageUrlList = [];return axios.all(linkUrls.map((link) => axios.get(link))).then((resList) => {resList.forEach((res) => {const $ = cheerio.load(res.data);const imageDom = $(IMAGE_ID);let imageUrl = $(imageDom).attr("src");let hour = getHour(imageUrl);imageUrlList.push({hour,imageUrl,});});return imageUrlList;});
}let rainImageList = await getBaseUrl();
//console.log(rainImageList)
export default rainImageList;

JAVA版

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