Simple nodejs installation and environment configuration under windows system_javascript skills

I believe that nodejs is no longer an unfamiliar word to many students who are concerned about the development of JavaScript. There is overwhelming information about nodejs on the Internet. Due to its high concurrency characteristics, it has created its special application status.

The most popular and best-maintained website about nodejs in China should be http://www.cnodejs.org/

I don’t want to talk too much about nodejs here. Just say, simple nodejs environment configuration under windows system.

Step 1: Download the installation file

Download address: Official website http://www.nodejs.org/download/

The word used here is

Step 2: Install nodejs

After the download is completed, double-click node-v0.8.16-x86.msi to start installing nodejs. By default, it is installed under C:Program Filesnodejs

Step 3: Install related environments

Open the C:Program Filesnodejs directory and you will find that npm comes with it. You can just use npm to install the environment directly

Enter node.js command prompt command window

Enter the nodejs installation directory C:Program Filesnodejs

Type the command: cd C:Program Filesnodejs

Now start installing the relevant environment

Type the command: npm express and press Enter to wait for express to be installed.....

Type the command: npm jade and press enter to wait for jade to be installed.....

Type the command: npm mysql and press Enter to wait for the installation of mysql.....

.....Which components to install depend on the environment construction requirements

By default, the above components are installed in the C:Program Filesnodejsnode_modules folder. This is also the automatic search path for nodejs related components

Step 4: Create a project

Express is now available

Type: express myapp (myapp is a random project name)

You will find an additional C:Program Filesnodejsmyapp directory

By default: it will be created automatically

No explanation is given for these files. I believe students with development experience can understand them at a glance.

Copy node_modules to myapp

The environment setup is now complete, now let’s do a demo test!

Create helloworld.js under myapp

Copy the code The 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);
console.log("nodejs start listen 8888 port!");

Enter the node.js command prompt command window and enter the C:Program Filesnodejsmyapp directory

Type node helloworld.js

Open the address http://127.0.0.1:8888/

Discover output:Hello World