node.js

node.js

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*下載、安裝 Node.js

https://nodejs.org/en/

*選最新版安裝:
12.2.0 Current
Latest Features

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*啟動與測試伺服器:

*建立專案資料夾node
建立空白檔案server.js

*在官網選about:
https://nodejs.org/en/
copy下列程式到server.js空白檔案:

const http = require('http');

const hostname = '127.0.0.1';
const port = 3000;

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello World\n');
 
  //html
  //res.setHeader('Content-Type', 'text/html');
  //res.end('Hello <u>World vvvcc</u>\n');
});

server.listen(port, hostname, () => {
  console.log(`Server running at http://${hostname}:${port}/`);
});

*在cmd切換資料夾到專案資料夾node
執行指令:
node server

出現:
Server running at http://127.0.0.1:3000/

*在瀏覽器輸入
http://127.0.0.1:3000/

出現:
Hello World

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