{"id":32332,"date":"2024-11-25T16:19:31","date_gmt":"2024-11-25T08:19:31","guid":{"rendered":"https:\/\/fwq.ai\/blog\/32332\/"},"modified":"2024-11-25T16:19:31","modified_gmt":"2024-11-25T08:19:31","slug":"%e4%bd%bf%e7%94%a8nodejs%e3%80%81socket-io%e5%92%8cexpressjs%e8%bf%9b%e8%a1%8c%e5%ae%9e%e6%97%b6%e8%81%8a%e5%a4%a9","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/32332\/","title":{"rendered":"\u4f7f\u7528NodeJS\u3001Socket.io\u548cExpressJS\u8fdb\u884c\u5b9e\u65f6\u804a\u5929"},"content":{"rendered":"

\"\u4f7f\u7528NodeJS\u3001Socket.io\u548cExpressJS\u8fdb\u884c\u5b9e\u65f6\u804a\u5929\u63d2\u56fe\"<\/p>\n

NodeJS \u4f7f\u6211\u80fd\u591f\u7528\u6211\u6700\u559c\u6b22\u7684\u8bed\u8a00\u4e4b\u4e00\u7f16\u5199\u540e\u7aef\u4ee3\u7801\uff1aJavaScript\u3002\u5b83\u662f\u6784\u5efa\u5b9e\u65f6\u5e94\u7528\u7a0b\u5e8f\u7684\u5b8c\u7f8e\u6280\u672f\u3002\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u5c06\u5411\u60a8\u5c55\u793a\u5982\u4f55\u4f7f\u7528 ExpressJS \u548c Socket.io \u6784\u5efa\u7f51\u7edc\u804a\u5929\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n

\n

\u8bbe\u7f6e\u73af\u5883<\/h2>\n

\u5f53\u7136\uff0c\u9996\u5148\u8981\u505a\u7684\u5c31\u662f\u5728\u60a8\u7684\u7cfb\u7edf\u4e0a\u5b89\u88c5 NodeJS\u3002\u5982\u679c\u60a8\u662f Windows \u6216 Mac \u7528\u6237\uff0c\u53ef\u4ee5\u8bbf\u95ee .org \u5e76\u4e0b\u8f7d\u5b89\u88c5\u7a0b\u5e8f\u3002\u5982\u679c\u60a8\u66f4\u559c\u6b22 Linux\uff0c\u6211\u5efa\u8bae\u60a8\u53c2\u8003\u6b64\u94fe\u63a5\u3002\u867d\u7136\u6211\u4e0d\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e00\u70b9\uff0c\u4f46\u5982\u679c\u60a8\u9047\u5230\u4efb\u4f55\u5b89\u88c5\u95ee\u9898\uff0c\u6211\u5f88\u4e50\u610f\u63d0\u4f9b\u5e2e\u52a9\uff1b\u53ea\u9700\u5728\u672c\u6587\u4e0b\u65b9\u53d1\u8868\u8bc4\u8bba\u5373\u53ef\u3002<\/p>\n

\u5b89\u88c5 NodeJS \u540e\uff0c\u60a8\u5c31\u53ef\u4ee5\u8bbe\u7f6e\u6240\u9700\u7684\u5de5\u5177\u4e86\u3002<\/p>\n

    \n
  1. ExpressJS – \u8fd9\u5c06\u7ba1\u7406\u670d\u52a1\u5668\u548c\u5bf9\u7528\u6237\u7684\u54cd\u5e94<\/li>\n
  2. Jade – \u6a21\u677f\u5f15\u64ce<\/li>\n
  3. Socket.io – \u5141\u8bb8\u524d\u7aef\u548c\u540e\u7aef\u4e4b\u95f4\u7684\u5b9e\u65f6\u901a\u4fe1<\/li>\n<\/ol>\n

    \u7ee7\u7eed\uff0c\u5728\u7a7a\u76ee\u5f55\u4e2d\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u4ee5\u4e0b\u5185\u5bb9\u7684 package.json<\/em> \u6587\u4ef6\u3002<\/p>\n

    {\n    \"name\": \"RealTimeWebChat\",\n    \"version\": \"0.0.0\",\n    \"description\": \"Real time web chat\",\n    \"dependencies\": {\n        \"socket.io\": \"latest\",\n        \"express\": \"latest\",\n        \"jade\": \"latest\"\n    },\n    \"author\": \"developer\"\n}\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u901a\u8fc7\u4f7f\u7528\u63a7\u5236\u53f0\uff08\u5728 Windows – \u547d\u4ee4\u63d0\u793a\u7b26\u4e0b\uff09\uff0c\u5bfc\u822a\u5230\u60a8\u7684\u6587\u4ef6\u5939\u5e76\u6267\u884c\uff1a<\/p>\n
    npm install\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u51e0\u79d2\u949f\u4e4b\u5185\uff0c\u60a8\u5c31\u4f1a\u5c06\u6240\u6709\u5fc5\u9700\u7684\u4f9d\u8d56\u9879\u4e0b\u8f7d\u5230 node_modules<\/em> \u76ee\u5f55\u4e2d\u3002 <\/p>\n
    \n
    \u5f00\u53d1\u540e\u7aef<\/h2>\n
    \u8ba9\u6211\u4eec\u4ece\u4e00\u4e2a\u7b80\u5355\u7684\u670d\u52a1\u5668\u5f00\u59cb\uff0c\u5b83\u5c06\u63d0\u4f9b\u5e94\u7528\u7a0b\u5e8f\u7684 HTML \u9875\u9762\uff0c\u7136\u540e\u7ee7\u7eed\u66f4\u6709\u8da3\u7684\u90e8\u5206\uff1a\u5b9e\u65f6\u901a\u4fe1\u3002\u4f7f\u7528\u4ee5\u4e0b\u6838\u5fc3expressjs\u4ee3\u7801\u521b\u5efa\u4e00\u4e2aindex.js<\/em>\u6587\u4ef6\uff1a<\/p>\n
    var express = require(\"express\");\nvar app = express();\nvar port = 3700;\n\napp.get(\"\/\", function(req, res){\n    res.send(\"It works!\");\n});\n\napp.listen(port);\nconsole.log(\"Listening on port \" + port);\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4e0a\u9762\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u5e76\u5b9a\u4e49\u4e86\u5b83\u7684\u7aef\u53e3\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u6ce8\u518c\u4e86\u4e00\u4e2a\u8def\u7531\uff0c\u5728\u672c\u4f8b\u4e2d\uff0c\u5b83\u662f\u4e00\u4e2a\u4e0d\u5e26\u4efb\u4f55\u53c2\u6570\u7684\u7b80\u5355 GET \u8bf7\u6c42\u3002\u76ee\u524d\uff0c\u8def\u7531\u7684\u5904\u7406\u7a0b\u5e8f\u53ea\u662f\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e9b\u6587\u672c\u3002\u6700\u540e\uff0c\u5f53\u7136\uff0c\u5728\u5e95\u90e8\uff0c\u6211\u4eec\u8fd0\u884c\u670d\u52a1\u5668\u3002\u8981\u521d\u59cb\u5316\u5e94\u7528\u7a0b\u5e8f\uff0c\u8bf7\u4ece\u63a7\u5236\u53f0\u6267\u884c\uff1a<\/p>\n
    node index.js\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u670d\u52a1\u5668\u6b63\u5728\u8fd0\u884c\uff0c\u56e0\u6b64\u60a8\u5e94\u8be5\u80fd\u591f\u6253\u5f00http:\/\/127.0.0.1:3700\/<\/em>\u5e76\u770b\u5230\uff1a<\/p>\n
    It works!\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u73b0\u5728\uff0c\u6211\u4eec\u5e94\u8be5\u63d0\u4f9b HTML\uff0c\u800c\u4e0d\u662f\u201c\u5b83\u6709\u6548\u201d<\/em>\u3002\u4f7f\u7528\u6a21\u677f\u5f15\u64ce\u4ee3\u66ff\u7eaf HTML \u53ef\u80fd\u4f1a\u66f4\u6709\u76ca\u3002 Jade \u662f\u4e00\u4e2a\u5f88\u597d\u7684\u9009\u62e9\uff0c\u5b83\u4e0e ExpressJS \u6709\u5f88\u597d\u7684\u96c6\u6210\u3002\u8fd9\u662f\u6211\u5728\u81ea\u5df1\u7684\u9879\u76ee\u4e2d\u901a\u5e38\u4f7f\u7528\u7684\u3002\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a tpl<\/em> \u7684\u76ee\u5f55\uff0c\u5e76\u5c06\u4ee5\u4e0b page.jade<\/em> \u6587\u4ef6\u653e\u5165\u5176\u4e2d\uff1a<\/p>\n
    !!!\nhtml\n    head\n        title= \"Real time web chat\"\n    body\n        #content(style='width: 500px; height: 300px; margin: 0 0 20px 0; border: solid 1px #999; overflow-y: scroll;')\n        .controls\n            input.field(style='width:350px;')\n            input.send(type='button', value='send')\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    Jade \u7684\u8bed\u6cd5\u5e76\u4e0d\u590d\u6742\uff0c\u4f46\u662f\uff0c\u8981\u83b7\u5f97\u5b8c\u6574\u7684\u6307\u5357\uff0c\u6211\u5efa\u8bae\u60a8\u53c2\u8003jade-lang.com\u3002\u4e3a\u4e86\u5c06 Jade \u4e0e ExpressJS \u4e00\u8d77\u4f7f\u7528\uff0c\u6211\u4eec\u9700\u8981\u8fdb\u884c\u4ee5\u4e0b\u8bbe\u7f6e\u3002<\/p>\n
    app.set('views', __dirname + '\/tpl');\napp.set('view engine', \"jade\");\napp.engine('jade', require('jade').__express);\napp.get(\"\/\", function(req, res){\n    res.render(\"page\");\n});\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6b64\u4ee3\u7801\u901a\u77e5 Express \u60a8\u7684\u6a21\u677f\u6587\u4ef6\u6240\u5728\u4f4d\u7f6e\u4ee5\u53ca\u8981\u4f7f\u7528\u7684\u6a21\u677f\u5f15\u64ce\u3002\u5b83\u5168\u90e8\u6307\u5b9a\u5c06\u5904\u7406\u6a21\u677f\u4ee3\u7801\u7684\u51fd\u6570\u3002\u4e00\u65e6\u4e00\u5207\u8bbe\u7f6e\u5b8c\u6bd5\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528 response \u5bf9\u8c61\u7684 .render \u65b9\u6cd5\uff0c\u5e76\u5c06\u6211\u4eec\u7684 Jade \u4ee3\u7801\u53d1\u9001\u7ed9\u7528\u6237\u3002 <\/p>\n
     \u6b64\u65f6\u7684\u8f93\u51fa\u5e76\u4e0d\u7279\u6b8a\uff1b\u65e0\u975e\u662f\u4e00\u4e2a div \u5143\u7d20\uff08id \u4e3a content \u7684\u5143\u7d20\uff09\uff0c\u5b83\u5c06\u7528\u4f5c\u804a\u5929\u6d88\u606f\u7684\u5bb9\u5668\u548c\u4e24\u4e2a\u63a7\u4ef6\uff08\u8f93\u5165\u5b57\u6bb5\u548c\u6309\u94ae\uff09\uff0c\u6211\u4eec\u5c06\u4f7f\u7528\u5b83\u4eec\u6765\u53d1\u9001\u6d88\u606f\u3002 p> <\/p>\n
    \u56e0\u4e3a\u6211\u4eec\u5c06\u4f7f\u7528\u4e00\u4e2a\u5916\u90e8 JavaScript \u6587\u4ef6\u6765\u4fdd\u5b58\u524d\u7aef\u903b\u8f91\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u901a\u77e5 ExpressJS \u5728\u54ea\u91cc\u5bfb\u627e\u6b64\u7c7b\u8d44\u6e90\u3002\u521b\u5efa\u4e00\u4e2a\u7a7a\u76ee\u5f55 public\uff0c\u5e76\u5728\u8c03\u7528 .listen \u65b9\u6cd5\u4e4b\u524d\u6dfb\u52a0\u4ee5\u4e0b\u884c\u3002<\/p>\n
    app.use(express.static(__dirname + '\/public'));\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5230\u76ee\u524d\u4e3a\u6b62\u4e00\u5207\u987a\u5229\uff1b\u6211\u4eec\u6709\u4e00\u4e2a\u6210\u529f\u54cd\u5e94 GET \u8bf7\u6c42\u7684\u670d\u52a1\u5668\u3002\u73b0\u5728\uff0c\u662f\u65f6\u5019\u6dfb\u52a0 Socket.io \u96c6\u6210\u4e86\u3002\u66f4\u6539\u6b64\u884c\uff1a<\/p>\n
    app.listen(port);\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u81f3\uff1a<\/p>\n
    var io = require('socket.io').listen(app.listen(port));\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4e0a\u9762\uff0c\u6211\u4eec\u5c06 ExpressJS \u670d\u52a1\u5668\u4f20\u9012\u7ed9\u4e86 Socket.io\u3002\u5b9e\u9645\u4e0a\uff0c\u6211\u4eec\u7684\u5b9e\u65f6\u901a\u4fe1\u4ecd\u7136\u4f1a\u53d1\u751f\u5728\u540c\u4e00\u7aef\u53e3\u4e0a\u3002 <\/p>\n
    \u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u7f16\u5199\u4ece\u5ba2\u6237\u7aef\u63a5\u6536\u6d88\u606f\u5e76\u5c06\u5176\u53d1\u9001\u7ed9\u6240\u6709\u5176\u4ed6\u5ba2\u6237\u7aef\u7684\u4ee3\u7801\u3002\u6bcf\u4e2a Socket.io \u5e94\u7528\u7a0b\u5e8f\u90fd\u4ee5 connection \u5904\u7406\u7a0b\u5e8f\u5f00\u59cb\u3002\u6211\u4eec\u5e94\u8be5\u6709\u4e00\u4e2a\uff1a<\/p>\n
    io.sockets.on('connection', function (socket) {\n    socket.emit('message', { message: 'welcome to the chat' });\n    socket.on('send', function (data) {\n        io.sockets.emit('message', data);\n    });\n});\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4f20\u9012\u7ed9\u5904\u7406\u7a0b\u5e8f\u7684\u5bf9\u8c61 socket \u5b9e\u9645\u4e0a\u662f\u5ba2\u6237\u7aef\u7684\u5957\u63a5\u5b57\u3002\u5c06\u5176\u89c6\u4e3a\u670d\u52a1\u5668\u548c\u7528\u6237\u6d4f\u89c8\u5668\u4e4b\u95f4\u7684\u8fde\u63a5\u70b9\u3002\u8fde\u63a5\u6210\u529f\u540e\uff0c\u6211\u4eec\u53d1\u9001 welcome \u7c7b\u578b\u7684\u6d88\u606f\uff0c\u5f53\u7136\uff0c\u8fd8\u4f1a\u7ed1\u5b9a\u53e6\u4e00\u4e2a\u5c06\u7528\u4f5c\u63a5\u6536\u5668\u7684\u5904\u7406\u7a0b\u5e8f\u3002\u7ed3\u679c\uff0c\u5ba2\u6237\u7aef\u5e94\u8be5\u53d1\u51fa\u4e00\u6761\u540d\u4e3a send \u7684\u6d88\u606f\uff0c\u6211\u4eec\u5c06\u6355\u83b7\u8be5\u6d88\u606f\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u53ea\u9700\u4f7f\u7528 io.sockets.emit \u5c06\u7528\u6237\u53d1\u9001\u7684\u6570\u636e\u8f6c\u53d1\u5230\u6240\u6709\u5176\u4ed6\u5957\u63a5\u5b57\u3002<\/p>\n
    \u901a\u8fc7\u4e0a\u9762\u7684\u4ee3\u7801\uff0c\u6211\u4eec\u7684\u540e\u7aef\u5df2\u51c6\u5907\u597d\u5411\u5ba2\u6237\u7aef\u63a5\u6536\u548c\u53d1\u9001\u6d88\u606f\u3002\u8ba9\u6211\u4eec\u6dfb\u52a0\u4e00\u4e9b\u524d\u7aef\u4ee3\u7801\u3002<\/p>\n
    \n
    \u5f00\u53d1\u524d\u7aef<\/h2>\n
    \u521b\u5efa chat.js\uff0c\u5e76\u5c06\u5176\u653e\u7f6e\u5728\u5e94\u7528\u7a0b\u5e8f\u7684 public \u76ee\u5f55\u4e2d\u3002\u7c98\u8d34\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
    window.onload = function() {\n\n    var messages = [];\n    var socket = io.connect('http:\/\/localhost:3700');\n    var field = document.getElementById(\"field\");\n    var sendButton = document.getElementById(\"send\");\n    var content = document.getElementById(\"content\");\n\n    socket.on('message', function (data) {\n        if(data.message) {\n            messages.push(data.message);\n            var html = '';\n            for(var i=0; i<messages.length i html messages><\/messages.length>';\n            }\n            content.innerHTML = html;\n        } else {\n            console.log(\"There is a problem:\", data);\n        }\n    });\n\n    sendButton.onclick = function() {\n        var text = field.value;\n        socket.emit('send', { message: text });\n    };\n\n}\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6211\u4eec\u7684\u903b\u8f91\u5305\u88c5\u5728 .onload \u5904\u7406\u7a0b\u5e8f\u4e2d\uff0c\u53ea\u662f\u4e3a\u4e86\u786e\u4fdd\u6240\u6709\u6807\u8bb0\u548c\u5916\u90e8 JavaScript \u5747\u5df2\u5b8c\u5168\u52a0\u8f7d\u3002\u5728\u63a5\u4e0b\u6765\u7684\u51e0\u884c\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\uff0c\u5b83\u5c06\u5b58\u50a8\u6240\u6709\u6d88\u606f\u3001\u4e00\u4e2a socket \u5bf9\u8c61\u4ee5\u53ca\u4e00\u4e9b DOM \u5143\u7d20\u7684\u5feb\u6377\u65b9\u5f0f\u3002\u540c\u6837\uff0c\u4e0e\u540e\u7aef\u7c7b\u4f3c\uff0c\u6211\u4eec\u7ed1\u5b9a\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u5c06\u5bf9\u5957\u63a5\u5b57\u7684\u6d3b\u52a8\u505a\u51fa\u53cd\u5e94\u3002\u5728\u6211\u4eec\u7684\u4f8b\u5b50\u4e2d\uff0c\u8fd9\u662f\u4e00\u4e2a\u540d\u4e3a message \u7684\u4e8b\u4ef6\u3002\u5f53\u6b64\u7c7b\u4e8b\u4ef6\u53d1\u751f\u65f6\uff0c\u6211\u4eec\u671f\u671b\u6536\u5230\u4e00\u4e2a\u5bf9\u8c61\uff0cdata<\/em>\uff0c\u5176\u5c5e\u6027\u4e3a message\u3002\u5c06\u8be5\u6d88\u606f\u6dfb\u52a0\u5230\u6211\u4eec\u7684\u5b58\u50a8\u4e2d\u5e76\u66f4\u65b0 content div\u3002\u6211\u4eec\u8fd8\u5305\u542b\u4e86\u53d1\u9001\u6d88\u606f\u7684\u903b\u8f91\u3002\u8fd9\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u53d1\u51fa\u4e00\u6761\u540d\u4e3a send<\/em> \u7684\u6d88\u606f\u3002<\/p>\n
    \u5982\u679c\u4f60\u6253\u5f00http:\/\/localhost:3700<\/em>\uff0c\u4f60\u4f1a\u9047\u5230\u4e00\u4e9b\u9519\u8bef\u5f39\u51fa\u7a97\u53e3\u3002\u8fd9\u662f\u56e0\u4e3a\u6211\u4eec\u9700\u8981\u66f4\u65b0 page.jade \u4ee5\u5305\u542b\u5fc5\u8981\u7684 JavaScript \u6587\u4ef6\u3002<\/p>\n
    head\n    title= \"Real time web chat\"\n    script(src='\/chat.js')\n    script(src='\/socket.io\/socket.io.js')\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8bf7\u6ce8\u610f\uff0cSocket.io \u7ba1\u7406 socket.io.js<\/em> \u7684\u4ea4\u4ed8\u3002\u60a8\u4e0d\u5fc5\u62c5\u5fc3\u624b\u52a8\u4e0b\u8f7d\u6b64\u6587\u4ef6\u3002<\/p>\n
    \u6211\u4eec\u53ef\u4ee5\u5728\u63a7\u5236\u53f0\u4e2d\u4f7f\u7528 node index.js \u518d\u6b21\u8fd0\u884c\u6211\u4eec\u7684\u670d\u52a1\u5668\u5e76\u6253\u5f00http:\/\/localhost:3700<\/em>\u3002\u60a8\u5e94\u8be5\u4f1a\u770b\u5230\u6b22\u8fce\u6d88\u606f\u3002\u5f53\u7136\uff0c\u5982\u679c\u4f60\u53d1\u9001\u4e00\u4e9b\u4e1c\u897f\uff0c\u5e94\u8be5\u663e\u793a\u5728\u5185\u5bb9\u7684div\u4e2d\u3002\u5982\u679c\u60a8\u60f3\u786e\u4fdd\u5b83\u6709\u6548\uff0c\u8bf7\u6253\u5f00\u4e00\u4e2a\u65b0\u9009\u9879\u5361\uff08\u6216\u8005\u66f4\u597d\u7684\u662f\uff0c\u4e00\u4e2a\u65b0\u6d4f\u89c8\u5668\uff09\u5e76\u52a0\u8f7d\u5e94\u7528\u7a0b\u5e8f\u3002 Socket.io \u7684\u4f1f\u5927\u4e4b\u5904\u5728\u4e8e\uff0c\u5373\u4f7f\u60a8\u505c\u6b62 NodeJS \u670d\u52a1\u5668\u5b83\u4e5f\u80fd\u5de5\u4f5c\u3002\u524d\u7aef\u5c06\u7ee7\u7eed\u5de5\u4f5c\u3002\u4e00\u65e6\u670d\u52a1\u5668\u518d\u6b21\u542f\u52a8\uff0c\u60a8\u7684\u804a\u5929\u4e5f\u4f1a\u6b63\u5e38\u3002<\/p>\n
    \u5728\u76ee\u524d\u7684\u72b6\u6001\u4e0b\uff0c\u6211\u4eec\u7684\u804a\u5929\u5e76\u4e0d\u5b8c\u7f8e\uff0c\u9700\u8981\u4e00\u4e9b\u6539\u8fdb\u3002 <\/p>\n
    \n
    \u6539\u8fdb<\/h2>\n
    \u6211\u4eec\u9700\u8981\u505a\u7684\u7b2c\u4e00\u4e2a\u66f4\u6539\u662f\u6d88\u606f\u7684\u6807\u8bc6\u3002\u76ee\u524d\uff0c\u5c1a\u4e0d\u6e05\u695a\u54ea\u4e9b\u6d88\u606f\u662f\u7531\u8c01\u53d1\u9001\u7684\u3002\u597d\u5904\u662f\u6211\u4eec\u4e0d\u5fc5\u66f4\u65b0 NodeJS \u4ee3\u7801\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002\u8fd9\u662f\u56e0\u4e3a\u670d\u52a1\u5668\u53ea\u662f\u8f6c\u53d1 data \u5bf9\u8c61\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u9700\u8981\u5728\u90a3\u91cc\u6dfb\u52a0\u4e00\u4e2a\u65b0\u5c5e\u6027\uff0c\u5e76\u7a0d\u540e\u8bfb\u53d6\u5b83\u3002\u5728\u5bf9 chat.js \u8fdb\u884c\u66f4\u6b63\u4e4b\u524d\uff0c\u8ba9\u6211\u4eec\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684 input \u5b57\u6bb5\uff0c\u7528\u6237\u53ef\u4ee5\u5728\u5176\u4e2d\u6dfb\u52a0\u4ed6\/\u5979\u7684\u59d3\u540d\u3002\u5728 page.jade \u4e2d\uff0c\u66f4\u6539 controls div:<\/p>\n
    .controls\n    | Name: \n    input#name(style='width:350px;')\n    br\n    input#field(style='width:350px;')\n    input#send(type='button', value='send')\n<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u63a5\u4e0b\u6765\uff0c\u5728code.js<\/em>\u4e2d\uff1a<\/p>\n
    window.onload = function() {\n\n    var messages = [];\n    var socket = io.connect('http:\/\/localhost:3700');\n    var field = document.getElementById(\"field\");\n    var sendButton = document.getElementById(\"send\");\n    var content = document.getElementById(\"content\");\n    var name = document.getElementById(\"name\");\n\n    socket.on('message', function (data) {\n        if(data.message) {\n            messages.push(data);\n            var html = '';\n            for(var i=0; i<messages.length i html>' + (messages[i].username ? messages[i].username : 'Server') + ': ';\n                html += messages[i].message + '<br>';\n            }\n            content.innerHTML = html;\n        } else {\n            console.log(\"There is a problem:\", data);\n        }\n    });\n\n    sendButton.onclick = function() {\n        if(name.value == \"\") {\n            alert(\"Please type your name!\");\n        } else {\n            var text = field.value;\n            socket.emit('send', { message: text, username: name.value });\n        }\n    };\n\n}\n<\/messages.length><\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4e3a\u4e86\u603b\u7ed3\u8fd9\u4e9b\u53d8\u5316\uff0c\u6211\u4eec\uff1a<\/p>\n
      \n
    1. \u4e3a\u7528\u6237\u540d\u7684 input \u5b57\u6bb5\u6dfb\u52a0\u4e86\u65b0\u5feb\u6377\u65b9\u5f0f<\/li>\n
    2. \u7a0d\u5fae\u66f4\u65b0\u4e86\u6d88\u606f\u7684\u5448\u73b0\u65b9\u5f0f<\/li>\n
    3. \u5411\u5bf9\u8c61\u6dfb\u52a0\u4e86\u4e00\u4e2a\u65b0\u7684 username \u5c5e\u6027\uff0c\u8be5\u5c5e\u6027\u5c06\u53d1\u9001\u5230\u670d\u52a1\u5668<\/li>\n<\/ol>\n
      \u5982\u679c\u6d88\u606f\u6570\u91cf\u8fc7\u591a\uff0c\u7528\u6237\u5c06\u9700\u8981\u6eda\u52a8 div:<\/p>\n
      content.innerHTML = html;\ncontent.scrollTop = content.scrollHeight;\n<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u8bf7\u8bb0\u4f4f\uff0c\u4e0a\u8ff0\u89e3\u51b3\u65b9\u6848\u53ef\u80fd\u4e0d\u9002\u7528\u4e8e IE7 \u53ca\u66f4\u4f4e\u7248\u672c\uff0c\u4f46\u6ca1\u5173\u7cfb\uff1aIE7 \u662f\u65f6\u5019\u6d88\u5931\u4e86\u3002\u4f46\u662f\uff0c\u5982\u679c\u60a8\u60f3\u786e\u4fdd\u652f\u6301\uff0c\u8bf7\u968f\u610f\u4f7f\u7528 jQuery\uff1a<\/p>\n
      $(\"#content\").scrollTop($(\"#content\")[0].scrollHeight);\n<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u5982\u679c\u53d1\u9001\u6d88\u606f\u540e\u8f93\u5165\u5b57\u6bb5\u88ab\u6e05\u9664\uff0c\u90a3\u5c31\u592a\u597d\u4e86\uff1a<\/p>\n
      socket.emit('send', { message: text, username: name.value });\nfield.value = \"\";\n<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u6700\u540e\u4e00\u4e2a\u65e0\u804a\u7684\u95ee\u9898\u662f\u6bcf\u6b21\u70b9\u51fb\u53d1\u9001<\/em>\u6309\u94ae\u3002\u901a\u8fc7\u4e00\u70b9 jQuery\uff0c\u6211\u4eec\u53ef\u4ee5\u76d1\u542c\u7528\u6237\u4f55\u65f6\u6309\u4e0b Enter \u952e\u3002<\/p>\n
      $(document).ready(function() {\n    $(\"#field\").keyup(function(e) {\n        if(e.keyCode == 13) {\n            sendMessage();\n        }\n    });\n});\n<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u53ef\u4ee5\u6ce8\u518c\u51fd\u6570 sendMessage\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
      sendButton.onclick = sendMessage = function() {\n    ...\n};\n<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u8bf7\u6ce8\u610f\uff0c\u8fd9\u4e0d\u662f\u6700\u4f73\u5b9e\u8df5\uff0c\u56e0\u4e3a\u5b83\u6ce8\u518c\u4e3a\u5168\u5c40\u51fd\u6570\u3002\u4f46\u662f\uff0c\u5bf9\u4e8e\u6211\u4eec\u5728\u8fd9\u91cc\u7684\u5c0f\u6d4b\u8bd5\u6765\u8bf4\uff0c\u4e00\u5207\u90fd\u5f88\u597d\u3002<\/p>\n
      \n
      \u7ed3\u8bba<\/h2>\n
      NodeJS \u662f\u4e00\u9879\u975e\u5e38\u6709\u7528\u7684\u6280\u672f\uff0c\u5b83\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u5de8\u5927\u7684\u529b\u91cf\u548c\u4e50\u8da3\uff0c\u7279\u522b\u662f\u8003\u8651\u5230\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u7eaf JavaScript \u7684\u4e8b\u5b9e\u3002\u6b63\u5982\u60a8\u6240\u770b\u5230\u7684\uff0c\u4ec5\u7528\u51e0\u884c\u4ee3\u7801\uff0c\u6211\u4eec\u5c31\u7f16\u5199\u4e86\u4e00\u4e2a\u529f\u80fd\u9f50\u5168\u7684\u5b9e\u65f6\u804a\u5929\u5e94\u7528\u7a0b\u5e8f\u3002\u975e\u5e38\u6574\u6d01\uff01<\/p>\n
      \n  \u60f3\u8981\u4e86\u89e3\u6709\u5173\u4f7f\u7528 ExpressJS \u6784\u5efa Web \u5e94\u7528\u7a0b\u5e8f\u7684\u66f4\u591a\u4fe1\u606f\uff1f\u6211\u4eec\u4e3a\u60a8\u670d\u52a1\uff01\n<\/p><\/blockquote>\n
      \u4ee5\u4e0a\u5c31\u662f\u4f7f\u7528NodeJS\u3001Socket.io\u548cExpressJS\u8fdb\u884c\u5b9e\u65f6\u804a\u5929\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      NodeJS \u4f7f\u6211\u80fd\u591f\u7528\u6211\u6700\u559c\u6b22\u7684\u8bed\u8a00\u4e4b\u4e00\u7f16\u5199\u540e\u7aef\u4ee3\u7801\uff1aJavaScript\u3002\u5b83\u662f\u6784\u5efa\u5b9e\u65f6\u5e94\u7528\u7a0b\u5e8f\u7684\u5b8c\u7f8e\u6280\u672f\u3002\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u5c06\u5411\u60a8\u5c55\u793a\u5982\u4f55\u4f7f\u7528 ExpressJS \u548c Socket.io \u6784\u5efa\u7f51\u7edc\u804a\u5929\u5e94\u7528\u7a0b\u5e8f\u3002 \u8bbe\u7f6e\u73af\u5883 \u5f53\u7136\uff0c\u9996\u5148\u8981\u505a\u7684\u5c31\u662f\u5728\u60a8\u7684\u7cfb\u7edf\u4e0a\u5b89\u88c5 NodeJS\u3002\u5982\u679c\u60a8\u662f Windows \u6216 Mac \u7528\u6237\uff0c\u53ef\u4ee5\u8bbf\u95ee .org \u5e76\u4e0b\u8f7d\u5b89\u88c5\u7a0b\u5e8f\u3002\u5982\u679c\u60a8\u66f4\u559c\u6b22 Linux\uff0c\u6211\u5efa\u8bae\u60a8\u53c2\u8003\u6b64\u94fe\u63a5\u3002\u867d\u7136\u6211\u4e0d\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e00\u70b9\uff0c\u4f46\u5982\u679c\u60a8\u9047\u5230\u4efb\u4f55\u5b89\u88c5\u95ee\u9898\uff0c\u6211\u5f88\u4e50\u610f\u63d0\u4f9b\u5e2e\u52a9\uff1b\u53ea\u9700\u5728\u672c\u6587\u4e0b\u65b9\u53d1\u8868\u8bc4\u8bba\u5373\u53ef\u3002 \u5b89\u88c5 NodeJS \u540e\uff0c\u60a8\u5c31\u53ef\u4ee5\u8bbe\u7f6e\u6240\u9700\u7684\u5de5\u5177\u4e86\u3002 ExpressJS – \u8fd9\u5c06\u7ba1\u7406\u670d\u52a1\u5668\u548c\u5bf9\u7528\u6237\u7684\u54cd\u5e94 Jade – \u6a21\u677f\u5f15\u64ce Socket.io – \u5141\u8bb8\u524d\u7aef\u548c\u540e\u7aef\u4e4b\u95f4\u7684\u5b9e\u65f6\u901a\u4fe1 \u7ee7\u7eed\uff0c\u5728\u7a7a\u76ee\u5f55\u4e2d\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u4ee5\u4e0b\u5185\u5bb9\u7684 package.json \u6587\u4ef6\u3002 { “name”: “RealTimeWebChat”, “version”: “0.0.0”, “description”: “Real time web chat”, “dependencies”: { “socket.io”: “latest”, “express”: “latest”, “jade”: “latest” }, “author”: “developer” } \u767b\u5f55\u540e\u590d\u5236 \u901a\u8fc7\u4f7f\u7528\u63a7\u5236\u53f0\uff08\u5728 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-32332","post","type-post","status-publish","format-standard","hentry","category-cms"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/32332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=32332"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/32332\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=32332"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=32332"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=32332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}