CentOS 6下安装nodejs 0.9.0
确保安装了python，大部分安装失败都是由于python版本过低导致。安装之前，升级python版本，升级步骤 http://www.tomtalk.net/wiki/Python。# python -V
Python 2.7.3
开始安装：
1).下载nodejs到本地并解压缩
# wget http://nodejs.org/dist/v0.9.0/node-v0.9.0.tar.gz
# tar zxvf node-v0.9.0.tar.gz
2).进入到该目录编译和安装
# cd node-v0.9.0
# ./configure --prefix=/usr/local/node/0.9.0
这里安装在了/usr/local/node/0.9.0目录下
# make
# make install
3).配置NODE_HOME
# vi /etc/profile
在export PATH USER 。。。一行的上面添加如下内容，并将NODE_HOME/bin设置到系统path中
#set for nodejs
export NODE_HOME=/usr/local/node/0.9.0
export PATH=$NODE_HOME/bin:$PATH
保存退出后执行如下命令，使刚才的配置生效
# source /etc/profile
执行node -h命令验证设置成功
# node -h
Usage: node [ -e script | script.js ]
node debug script.js
Options:
-v, --version print node's version
-e, --eval script evaluate script
-p, --print print result of --eval
-i, --interactive always enter the REPL even if stdin
does not appear to be a terminal
--no-deprecation silence deprecation warnings
--trace-deprecationshow stack traces on deprecations
--v8-options print v8 command line options
--max-stack-size=val set max v8 stack size (bytes)
Environment variables:
NODE_PATH ':'-separated list of directories
prefixed to the module search path.
NODE_MODULE_CONTEXTS Set to 1 to load modules in their own
global contexts.
NODE_DISABLE_COLORS Set to 1 to disable colors in the REPL
Documentation can be found at http://nodejs.org/
至此安装设置完毕。
运行一个简单的node应用程序 + socket.io，首先需要安装socket.io模块
# npm install socket.io
# vi app.js
var http=require('http');
var io =require('socket.io');
var server = http.createServer(function(req,res){
res.writeHead(200,{'Content-Type':'text/plain'});
res.end('Hello world');
});
server.listen(process.argv);
var socket = io.listen(server);
socket.on('connection',function(client){
console.log('client has connected');
client.on('message',function(){ });
});
# nodejs ./app.js 8001 &
# nodejs ./app.js 8002 &
# nodejs ./app.js 8003 &
# nodejs ./app.js 8004 &
更详细的参照socket.io的官网的例子。
websocket与node.js的完美结合
http://wanshuiqianshan.iteye.com/blog/1618498
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