Easy creation of nodejs servers (1): A simple nodejs server example, nodejs Server

Easy creation of nodejs servers (1): A simple nodejs server example, nodejs Server

Let's first implement a simple example, hello world.

It seems that the first section of each language tutorial will talk about this, and we are no exception.

First, create a project directory, which can be defined by yourself. In this case, the directory is e:/nodetest /.

Since we are building a server, I name the first file server. js.

Enter the following code in server. js:

Copy codeThe Code is as follows:
Var http = require ("http ");
 
Http. createServer (function (request, response ){
 
Response. writeHead (200, {"Content-Type": "text/plain "});
 
Response. write ("Hello World ");
 
Response. end ();
 
}). Listen (8888 );

Then we open cmd.

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

Then open the browser to access http: // localhost: 8888/, and you will see a webpage with "Hello World;

In fact, this is a simple and workable server, but nothing can be done, but it doesn't matter. Follow me step by step, I will teach you how to build a complete and available server.

In the next section, we will analyze the composition of this Code.