语法
2024年10月14日
一、Methods
1.1 http.createServer
使用 http.createServer 实现 HTTP 服务器
const http = require('node:http');
const server = http.createServer((req, res) => {
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({
data: 'Hello World!',
}));
});
server.listen(8000, () => {
console.log("HTTP Server is running on port 8000");
});
const http = require('node:http');
const server = http.createServer();
server.on('request', (request, res) => {
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({
data: 'Hello World!',
}));
});
server.listen(8000, () => {
console.log("HTTP Server is running on port 8000");
});
1.2 koa http.createServer
使用Koa、http.createServer 实现 HTTP 服务器: Koa 使用 http.createServer() 方法来创建 HTTP 服务器。通常会看到 Koa 通过 app.callback() 方法将 Koa 应用程序转换为一个可以处理 HTTP 请求的回调函数，http.createServer() 使用这个回调来处理请求。
const Koa = require("koa");
const http = require("http");
const app = new Koa();
const server = http.createServer(app.callback());
app.use((ctx) => {
ctx.type = "application/json";
ctx.body = JSON.stringify({
data: "Hello World!",
});
});
server.listen(8000, () => {
console.log("Koa HTTP Server is running on port 8000");
});
1.3 express http.createServer
使用Express、http.createServer 实现 HTTP 服务器: 将 Express 应用程序作为回调传递给 http.createServer()，Express 会处理请求并生成响应。
const express = require("express");
const http = require("http");
const app = express();
const server = http.createServer(app);
app.get("/", (req, res) => {
res.send("Hello, Express with HTTP!");
});
server.listen(8000, () => {
console.log("Express HTTP Server is running on port 8000");
});