安装依赖
安装node.js,同时安装好依赖：
npm install request --save // http请求库
npm install cheerio --save // 分析html工具
npm install express --save // nodejs web框架
获取墨迹天气
地址示例：
东莞 https://tianqi.moji.com/weather/china/Guangdong/dongguan
广州 https://tianqi.moji.com/weather/china/guangdong/guangzhou
深圳 https://tianqi.moji.com/weather/china/guangdong/shenzhen
可打开墨迹天气网站找到女朋友对应城市修改url地址拼音即可。
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查看网页结构：
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下面开始提取网页天气信息：
const request = require("request")
const cheerio = require("cheerio")
const weatherURL = 'https://tianqi.moji.com/weather/china/Guangdong/dongguan'
// 获取墨迹天气提示信息
function getWeatherTips(url) {
return new Promise((resolve,reject)=>{
request(weatherURL,(error,res,body)=>{
if (!error) {
let html = res.body || "";
let $ =cheerio.load(html)
let temp = $('.wea_weather em').text().trim()+'℃'
let desc = $('.wea_weather b').text().trim()
let water = $('.wea_about span').text().trim()
let win = $('.wea_about em').text().trim()
let tips = $('.wea_tips em').text().trim()
let words=`今日${city}天气\n${desc}\n温度：${temp}\n湿度：${water}\n风力：${win}\n${tips}`
resolve(words)
} else {
reject(error)
}
})
})
}
获取每日一句
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const greetingURL = 'http://wufazhuce.com/'
// 获取wufazhuce.com每日一句
function getDailyGreeting() {
return new Promise((resolve,reject)=>{
request(greetingURL,(error,res,body)=>{
let everyDayWordsList = [];
if(!error && res.statusCode==200) {
let $ = cheerio.load(res.body.toString())
$('div .fp-one-cita a').each(function(item){
if($(this).text()){
everyDayWordsList.push($(this).text().trim())
}
})
let result = everyDayWordsList[0] || '网络错误，获取每日问候失败！'
resolve(result)
} else {
reject(error)
}
})
})
}
计算在一起天数
// 计算在一起的日子
function getDiffDate(targetDate) {
let date1 = new Date(targetDate);
let date2 = new Date();
date1 = new Date(date1.getFullYear(), date1.getMonth(), date1.getDate());
date2 = new Date(date2.getFullYear(), date2.getMonth(), date2.getDate());
const diff = date2.getTime() - date1.getTime();
const diffDate = diff / (24 * 60 * 60 * 1000);
return `宝贝，这是我们在一起的${diffDate}天`
}
接口调用
var express=require('express');
var app=express();
const api = require('./crawer.js')
app.get('/words',async function(req,res){
let dateTips = api.getDiffDate()
let weather = await api.getWeatherTips()
let words = await api.getDailyGreeting()
let str =`${dateTips}\n${weather}\n${words}`
res.writeHead(200, {'Content-Type': 'application/json; charset=utf-8'})
res.end(str)
})
var server = app.listen(8083, function () { // 启动ip和端口
var port = server.address().port
console.log("应用实例，访问地址为 http://%s:%s", port)
})
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