Nodejs

新建一个 nodejs 项目.

Pre install:

Nodejs
npm -

Steps:

mkdir nodejs-hw-pure
cd nodejs-hw-pure
new file: hellonode.js

//引入required模块
var http = require("http");

//创建服务器
http.createServer(function(request,response){
	//发送头部
	response.writeHead(200,{'Content-Type':'text/plain'});
	//发送响应数据
	response.end('hello Nodejs...\n');
}).listen(8888);
 
//终端打印以下信息
console.log('Server running at http://127.0.0.1:8888/');

4. Run:

$ node hellonode.js

5. Verify on Browser (Chrome):

http://127.0.0.1:8888/

Use Express

$ npm install express --save
$ npm install body-parser --save
$ npm install cookie-parser --save
$ npm install multer --save

new file: helloworld-express.js

var express = require("express");
var app = express();

app.get('/', function(req, res) {
    res.send('Hello Node by Express...');
})

var server = app.listen(8081, function() {
    var host = server.address().address
    var port = server.address().port


    console.log("Example app listening at http://%s;%s", host, port)
})

Run:

$ node helloworld-express.js

Verify on Browser (Chrome):

http://127.0.0.1:8081/

来源：oschina

链接：https://my.oschina.net/joryqiao/blog/4463642

标签

node.js