node.js entry example helloworld detailed explanation_node.js

The example in this article tells the node.js entry example helloworld. Share it with everyone for your reference, the details are as follows:

Save the following code as: server.js to the node directory under the E drive.

var http = require('http');
function myNode(request, response){
  response.writeHead(200, {'Content-type':'text/plain'});
  response.write('hello world'); //hello world
  response.end();
}
http.createServer(myNode).listen(2222); //监听2222端口
console.log('Server has started'); //在控制台提示服务启动

Then enter node e:/node/server.js

on the windows command line

Prompt that the service has started (Server has started), and then enter http://localhost:2222/ in the browser, you can see the effect as shown below.

The effect after successful execution

I hope this article will be helpful to everyone in node.js programming.