http爬虫简易版

Posted 2021-10-04 老张在线敲代码

懂得都懂，en…不做过多的介绍

const http = require("http")
const https =require("https")
const cheerio = require('cheerio');
function filterData(data){
    const $ = cheerio.load(data);
    //.section-item-box是父级的class名称 
    $(".section-item-box p").each((index,el)=>{
        // index是索引
        // el是dom元素
        console.log($(el).text())
    })
}
const server = http.createServer((req,res)=>{
    let data = ''
    https.get("https://www.meizu.com/",(result)=>{
        result.on("data",(chunk)=>{
            data += chunk
        })
        result.on("end",(chunk)=>{
            filterData(data)
        })
    })
})
server.listen(3000,()=>{
    console.log("localhost:3000")
})