Learn Nodejs 01
(1)下载nodejshttps://nodejs.org/download/
选择相应的版本进行下载
(2)安装nodejs
安装的方式比较多,请baidu下
我这边下载的是“node-v0.12.7-linux-x64.tar.gz”这个版本
(1)上传服务器
(2)解压
tar -zxvf node-v0.12.7-linux-x64.tar.gz
(3)检测是否安装成功
/database/nodejs/node-v0.12.7-linux-x64/bin
# ./node -v
v0.12.7
(3)编写HelloWorld
(3.1)新建工作区域 workspace
(3.2)新建第一个项目helloworld
/database/nodejs/workspace/helloworld
(3.3)编写js
vim first.js
拷贝官方网站上的代码
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, '202.102.83.169');
console.log('Server running at http://202.102.83.169:1337/');
# cat first.js
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, '202.102.83.169');
console.log('Server running at http://202.102.83.169:1337/');
注意点:这个时候访问“http://202.102.83.169:1337/”无效
server.listen(port, , , )#
Begin accepting connections on the specified port and hostname. If the hostname is omitted, the server will accept connections directed to any IPv4 address (INADDR_ANY).
里面说到如果忽略了hostname,那么服务器将会接受所有IPV4地址的链接,IPv4地址包括127.0.0.1 localhost和本地IP。没有认真看API,以后要注意。那么这样做就可以实现监听本地IP、localhost、127.0.0.1了:
?
1
2
3
4
5
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337);
(3.4)启动服务
# ./node /database/nodejs/workspace/helloworld/first.js
Server running at http://127.0.0.1:1337/
(3.5)启动服务
浏览器访问
页:
[1]