Socket.IO chat

[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_11":-5},"routes/user.$name.replies",{"_9":10,"_11":12,"_13":14,"_15":16,"_17":18,"_19":16},"replies",[34],"user",{"_20":21,"_13":14,"_22":23,"_24":14,"_25":26,"_27":28,"_29":30,"_31":16,"_32":33},"loginname","timor2015","page",1,"limit",50,"total","id","22466","avatar_url","https://avatars.githubusercontent.com/u/16185099?v=3","githubUsername","create_at","2016-05-08 02:53:39.848","score",5,"topic_count",0,"reply_count","is_star",false,{"_20":35,"_36":37,"_38":39,"_40":41,"_42":43,"_44":45,"_46":33,"_47":33,"_31":48,"_49":50,"_25":51,"_52":53},"17875","author_id","13256","tab","share","content","下面是源码\r\n\r\n```\r\n//package.json\r\n{\r\n \"name\": \"chat\",\r\n \"version\": \"1.0.0\",\r\n \"description\": \"即时聊天\",\r\n \"main\": \"index.js\",\r\n \"scripts\": {\r\n \"test\": \"echo \\\"Error: no test specified\\\" && exit 1\"\r\n },\r\n \"author\": \"\",\r\n \"license\": \"ISC\",\r\n \"dependencies\": {\r\n \"express\": \"^4.13.4\",\r\n \"lodash\": \"^4.12.0\",\r\n \"markdown-it\": \"^6.0.1\",\r\n \"socket.io\": \"^1.4.6\"\r\n }\r\n}\r\n```\r\n\r\n```\r\n//index.js\r\nvar app = require('express')();\r\nvar http = require('http').Server(app);\r\nvar io = require('socket.io')(http);\r\nvar _ = require('lodash');\r\nvar MarkdownIt = require(\"markdown-it\");\r\nvar md = new MarkdownIt({\r\n breaks: true,\r\n linkify: true\r\n});\r\n\r\nvar users = [];\r\n\r\napp.get('/', function(req, res) {\r\n res.sendFile(__dirname + '/index.html');\r\n});\r\n\r\nio.on('connection', function(socket) {\r\n\r\n socket.on('user connection', function(msg) {\r\n users.push({\r\n id: socket.id,\r\n name: msg\r\n })\r\n io.sockets.emit('hi', msg + '加入聊天室\\n当前在线人数' + users.length);\r\n });\r\n\r\n socket.on('disconnect', function() {\r\n var i = _.findIndex(users, {\r\n id: socket.id\r\n });\r\n if (i >= 0) {\r\n var _user = users[i];\r\n _.remove(users, function(u) {\r\n return u.id == socket.id;\r\n })\r\n io.sockets.emit('hi', _user.name + '离开了聊天室\\n当前在线人数' + users.length);\r\n }\r\n });\r\n\r\n socket.on('chat message', function(msg) {\r\n if (msg) {\r\n var i = _.findIndex(users, {\r\n id: socket.id\r\n });\r\n if (i >= 0) {\r\n io.emit('chat message', {\r\n user: users[i],\r\n msg: md.render(msg)\r\n });\r\n }\r\n }\r\n });\r\n\r\n});\r\n\r\nhttp.listen(4000, function() {\r\n console.log('listening on *:4000');\r\n});\r\n```\r\n\r\n```\r\n//index.html\r\n\r\n\r\n \r\n Socket.IO chat\r\n \r\n \r\n \r\n

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\r\n\r\n \r\n \r\n \r\n \r\n\r\n```\r\n\r\n启动：\r\n\r\n```\r\nnpm install\r\nnode index.js\r\n```\r\n\r\n打开浏览器访问：http://localhost:4000\r\n开源地址：https://github.com/liygheart/chedan\r\n在线体验：http://chat.tomoya.cn/","title","使用socket.io开发的在线聊天","last_reply_at","2016-05-12 12:08:08.301","good","top",9,"visit_count",6997,"2016-05-11 11:31:42.366","author",{"_13":54,"_22":55},"tomoya92","https://avatars2.githubusercontent.com/u/6915570?v=4"]