96 lines
2.0 KiB
JavaScript
96 lines
2.0 KiB
JavaScript
const http = require("http");
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const { URL } = require("url");
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let map = new Map();
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map.set("get", {})
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map.set("post", {})
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let port = 3000
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let hostName = "127.0.0.1"
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let server = http.createServer()
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server.listen(port, hostName, () => {
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console.log(`app is run http://${hostName}:${port}`);
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})
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server.get = (path, callback) => {
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map.get("get")[path] = callback
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}
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server.post = (path, callback) => {
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map.get("post")[path] = callback
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}
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server.on("request", async (req, res) => {
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if (req.url != "/favicon.ico") {
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json(res)
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// 请求方式转小写
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req.method = req.method.toLowerCase()
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// 解析请求地址
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req.url = new URL(req.url, `http://${req.headers.host}`)
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await handleReqParams(req)
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var pathName = req.url.pathname;
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if (map.get(req.method)[pathName] != undefined) {
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await map.get(req.method)[pathName](req, res)
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} else {
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// 如果请求不存在的话
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res.end(`${req.method} methods to path: ${pathName} not found`)
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}
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}
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})
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/**
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* 直接响应json数据
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* @param {*} res
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*/
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const json = (res) => {
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res.json = (data) => res.end(JSON.stringify(data))
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}
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/**
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* GET请求参数转对象
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* @param {*} req
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*/
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const handleReqParams = (req) => {
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return new Promise((resolve, reject) => {
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req.query = {}
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req.body = {}
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switch (req.method) {
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case "get":
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// 如果地址后面没有参数，则处理参数
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if (req.url.search.length != 0) {
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req.query = stringToObj(req.url.searchParams.toString())
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}
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resolve(req)
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break;
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case "post":
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req.on('data', (data) => req.body = JSON.parse(data.toString()));
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req.on('end', () => resolve(req))
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break;
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default:
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break;
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}
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})
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}
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function stringToObj(str) {
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var obj = {};
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var temp = str.split('&')
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for (var i = 0; i < temp.length; i++) {
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var t = temp[i].split('=')
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obj[t[0]] = Number.isNaN(Number(t[1])) ? decodeURIComponent(t[1]) : Number(t[1])
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}
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return obj
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}
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module.exports = server
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