Easy to create Nodejs server (1): A simple Nodejs server example _node.js

Let's start by implementing a simple example, Hello world.

It seems that the first verse of every language tutorial will say this, and we are no exception.

First we first create a project directory, the directory can be defined by itself, the directory of this case is e:/nodetest/.

Since we're going to build the server, I named the first file server.js.

Enter the following code inside the Server.js:

Copy Code code as follows:

var http = require ("http");

Http.createserver (function (request, response) {

Response.writehead ({"Content-type": "Text/plain"});

Response.Write ("Hello World");

Response.End ();

}). Listen (8888);

Then we open cmd.

Use the CD e:/nodetest/to navigate to the project directory, and then execute the node server.js command to run the file;

Then open the browser to visit http://localhost:8888/, and you'll see a Web page with "Hello World";

In fact, this is a simple work of the server, but simply to do nothing, but it does not matter, follow me step-by-step, I will teach you how to build a fully available server.

In the next section, we'll analyze the composition of this code.