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centOS下通过NPM安装和配置node.js+socket.io+connect实现在线聊天的详细教程

2011-09-29 00:00:00 by 【6yang】, 2928 visits, 收藏 | 返回

  1. http://www.iunbug.com/article.html?objNews.id=276003

     CentOS

  2. 0.新建目录node
  3. cd /opt
  4. mkdir node
  5.  
  6. 1.安装nodejs
  7. //nodejs最新版https://github.com/joyent/node/wiki/Installation
  8. yum install gcc-c++ openssl-devel
  9. wget --no-check-certificate https://download.github.com/joyent-node-v0.4.7-108-g85bc8d0.tar.gz
  10. tar -xzvf joyent-node-v0.4.7-94-ge505a12.tar.gz
  11. cd joyent-node-e505a12
  12. ./configure
  13. make
  14. make install
  15.  
  16. 检查安装,HELLOWORD[可选]:
  17. var http = require('http');
  18. http.createServer(function (req, res) {
  19.   res.writeHead(200, {'Content-Type': 'text/plain'});
  20.   res.end('Hello Node.jsn');
  21. }).listen(8124, "192.168.1.254");
  22. console.log('Server running at http://192.168.1.254:8124/');
  23.  
  24. 2.安装NPM
  25. //https://github.com/isaacs/npm#readme
  26. curl http://npmjs.org/install.sh | sh
  27.  
  28. //-----------------------------安装其他模块
  29.  (node.js配置脚本目录,安装下面任意模块会自动保存到当前目录生成的"node_modules"文件夹下)
  30.  
  31. 3.安装socket.io
  32. //http://socket.io/
  33. 安装最新版本:npm install socket.io
  34. 安装v0.6.x版本:npm install socket.io@0.6.18 
  35.  
  36.  
  37. 检查安装[可选]:
  38. // 加载HTTP模块（来启动服务器）和Socket.io模块
  39. var http = require('http'), io = require('socket.io');
  40.  
  41. // 在8080端口启动服务器
  42. var server = http.createServer(function(req, res){ 
  43.  
  44.         // 发送HTML的headers和message
  45.         res.writeHead(200,{ 'Content-Type': 'text/html' }); 
  46.         res.end('<h1>Hello Socket Lover!</h1>');
  47. });
  48. server.listen(8080);
  49.  
  50. // 创建一个Socket.IO实例，把它传递给服务器
  51. var socket = io.listen(server);
  52.  
  53. // 添加一个连接@@@@@@
  54. socket.on('connection', function(client){ 
  55.         
  56.         // 成功！现在开始监听接收到的消息
  57.         client.on('message',function(event){ 
  58.                 console.log('Received message from client!',event);
  59.         });
  60.         client.on('disconnect',function(){
  61.                 clearInterval(interval);
  62.                 console.log('Server has disconnected');
  63.         });
  64.  
  65. });
  66. 4.安装connect
  67. //http://senchalabs.github.com/connect/
  68. npm install connect
  69.  
  70. 5.后台运行
  71. nohup node server.js &
  72. 或者nohup node server.js > /dev/null &
  73.  
  74. 6.出现地址占用解决办法
  75. ps aux|grep node
  76. kill -9 PID
  77.  
  78. 7.[测试环境中用]使用spludo来运行server.js,当server.js有更改时自动重启server.js进程
  79. //http://dracoblue.net/dev/hot-reload-for-nodejs-servers-on-code-change/173/
  80. 复制run_dev_server.js与server.js同级目录
  81. 运行node run_dev_server.js即可
  82.  
  83. 8.使用forever来守护node进程
  84. //https://github.com/indexzero/forever
  85. (1)
  86. npm install forever
  87. npm install forever -g
  88. (2)在server.js同一目录下新建forever.js,配置如下:
  89. var forever = require('forever');
  90.  
  91. var child = new (forever.Forever)('server.js',{
  92.     //'max' : 100000000,        // Sets the maximum number of times a given script should run
  93.     'forever' : true,             // Indicates that this script should run forever 
  94.     'silent' : true,             // Silences the output from stdout and stderr in the parent process
  95.     'logFile' : 'log.log',   // Path to log output from forever process (when in daemon)
  96.     'pidFile' : 'pid.log',   // Path to put pid information for the process(es) started
  97.     'outFile' : 'out.log',   // Path to log output from child stdout
  98.     'errFile' : 'err.log',   // Path to log output from child stderr
  99.     'command' : 'node',           // Binary to run (default: 'node')
  100.     'options' : []   // Additional arguments to pass to the script
  101. });
  102.  
  103. //进程退出
  104. child.on('exit', function(){
  105. console.log('child has exited');
  106. });
  107. child.start();
  108. (3)运行forever start forever.js
  109. (4)停止运行forever stopall
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