Node.js（五）：GET、POST 请求 文件上传

GET、POST 请求

const http = require('http');
const url = require('url');
const querystring = require("querystring");

http.createServer((req,) => {
    res.writeHead(200, {
        "Content-Type": "application/json;charset=UTF-8"
    });
    const pathname = url.parse(req.url).pathname;

    // GET 请求
    if (pathname === '/getData') {
        const data = url.parse(req.url, true);
        const result = {
            code: 200,
            msg: '请求成功！',
            data: data.query
        };
        res.end(JSON.stringify(result));
    }
    // POST 请求
    else if (pathname === '/postData') {
        let bodys = [];
        req.on('data', (chunk) => {
            bodys.push(chunk);
        });
        req.on('end', () => {
            const buffer = Buffer.concat(bodys);
            let data = querystring.parse(buffer.toString())
            const result = {
                code: 200,
                msg: '请求成功！',
                data: data
            };
            res.end(JSON.stringify(result));
        });
    }
    else {
        res.end("404");
    }

}).listen(8888);

console.log('Server running at http://127.0.0.1:8888/');

文件上传

const formidable = require('formidable');
const fs = require('fs');
const path = require('path');
var util = require('util');

if (pathname === '/upload') {
    const form = formidable({ multiples: true });
    form.parse(req, (err, fields,) => {
        if(util.isArray(files.file)){
            for (let i = 0; i < files.file.length; i++) {
                fs.readFile(files.file[i].filepath, (err,) => {
                    fs.writeFile(path.join('./', files.file[i].originalFilename), data, async (err)=>{
                        console.log(err);
                    })
                })
            }
        }else{
            fs.readFile(files.file.filepath, (err,) => {
                fs.writeFile(path.join('./', files.file.originalFilename), data, async (err)=>{
                    console.log(err);
                })
            })
        }
        res.end(JSON.stringify(files));
    })
}