{"id":32331,"date":"2022-12-01T02:28:45","date_gmt":"2023-05-12T07:10:29","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8nodejs%e3%80%81c%e5%92%8c%e6%b5%8f%e8%a7%88%e5%99%a8%e6%b5%8b%e8%af%95%e9%80%9a%e8%bf%87mqtt%e8%bf%9b%e8%a1%8c%e9%80%9a%e4%bf%a1%e7%9a%84%e5%8a%9f%e8%83%bd%e3%80%82\/"},"modified":"2024-04-29T03:13:01","modified_gmt":"2024-04-28T19:13:01","slug":"%e7%94%a8nodejs%e3%80%81c%e5%92%8c%e6%b5%8f%e8%a7%88%e5%99%a8%e6%b5%8b%e8%af%95%e9%80%9a%e8%bf%87mqtt%e8%bf%9b%e8%a1%8c%e9%80%9a%e4%bf%a1%e7%9a%84%e5%8a%9f%e8%83%bd%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8nodejs%e3%80%81c%e5%92%8c%e6%b5%8f%e8%a7%88%e5%99%a8%e6%b5%8b%e8%af%95%e9%80%9a%e8%bf%87mqtt%e8%bf%9b%e8%a1%8c%e9%80%9a%e4%bf%a1%e7%9a%84%e5%8a%9f%e8%83%bd%e3%80%82\/","title":{"rendered":"\u7528NodeJS\u3001C#\u548c\u6d4f\u89c8\u5668\u6d4b\u8bd5\u901a\u8fc7MQTT\u8fdb\u884c\u901a\u4fe1\u7684\u529f\u80fd"},"content":{"rendered":"

\u6211\u6709\u4e00\u6bb5\u65f6\u95f4\u6ca1\u7406\u4f1a\u5b83\uff0c\u7ed3\u679c\u79ef\u7d2f\u4e86\u5f88\u591a\u5f85\u6574\u7406\u7684\u7d20\u6750\u3002<\/p>\n

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\u5173\u4e8e\u670d\u52a1\u5668\uff0c\u4f3c\u4e4e\u6709\u4e00\u4e2a\u540d\u4e3abeebotte\u7684\u670d\u52a1\u5f88\u6709\u540d\uff0c\u4f46\u4e5f\u53ef\u4ee5\u5728node.js\u4e0a\u642d\u5efa\u672c\u5730\u4ee3\u7406\u3002
\n\u6709\u4e00\u4e2a\u53ebmosca\u7684\u9879\u76ee\uff0c\u4f46\u4f3c\u4e4e\u5728\u540e\u7eed\u9879\u76eeaedes\u4e2d\u8fdb\u884c\u4e86\u4f18\u5316\u52a0\u901f\u3002
\n\u5f53\u7136\uff0cAWS\u4e5f\u6709\u4e00\u4e2a\u53ebAWS IoT Core\u7684\u670d\u52a1\u5b58\u5728\u3002
\n\u8fd9\u6b21\u6211\u4eec\u9009\u62e9\u5728node.js\u4e0a\u642d\u5efa\u3002<\/p>\n

\u5ba2\u6237\u7aef\u5982\u679c\u662fPython\uff0c\u6709\u4e00\u4e2a\u53eb\u505apaho-mqtt\u7684\u5e93\u3002\u5982\u679c\u662fNode.js\uff0c\u5219\u6709\u4e00\u4e2a\u53eb\u505amqtt\u7684\u5e93\u3002
\n\u6839\u636e\u8fd9\u4e2a\u94fe\u63a5\uff0c\u770b\u8d77\u6765C#\u53ef\u4ee5\u4f7f\u7528MQTTnet\u3002
\n\u5bf9\u4e8e\u6811\u8393\u6d3e\u6765\u8bf4\uff0c\u53ef\u4ee5\u4f7f\u7528Python\uff0c\u4f46\u8fd9\u6b21\u6211\u4eec\u4e5f\u60f3\u8003\u8651\u5230Unity\uff0c\u6240\u4ee5\u60f3\u8981\u4f7f\u7528C#\u8fdb\u884c\u786e\u8ba4\u3002
\n\u53e6\u5916\uff0c\u8fd8\u60f3\u8981\u786e\u8ba4\u4e00\u4e0b\u4ece\u6d4f\u89c8\u5668\u5230MQTT over WebSocket\u7684\u60c5\u51b5\u3002
\n\u8fd9\u662f\u4e00\u4e2a\u8d2a\u5a6a\u7684\u8bbe\u5b9a\u3002<\/p>\n

\u4f7f\u7528\u7ecf\u7eaa\u4eba\u548cNode.js\u8fdb\u884c\u4fe1\u606f\u4f20\u8f93\u548c\u63a5\u6536\u3002<\/h1>\n

\u4f7f\u7528npm\u5b89\u88c5aedes\u5e93\u3002<\/p>\n

\u6211\u51e0\u4e4e\u5b8c\u5168\u590d\u5236\u4e86\u8fd9\u4e2a\u811a\u672c\uff0c\u53c2\u8003\u4e86\u8fd9\u91cc\u7684\u5185\u5bb9\u3002<\/p>\n

const<\/span> aedes<\/span> =<\/span> require<\/span>(<\/span>'<\/span>aedes<\/span>'<\/span>)();<\/span>\r\n\r\n\/\/ \u5404\u30a2\u30af\u30b7\u30e7\u30f3\u306b\u5bfe\u3059\u308b\u53cd\u5fdc<\/span>\r\naedes<\/span>.<\/span>on<\/span>(<\/span>'<\/span>clientError<\/span>'<\/span>,<\/span> function<\/span> (<\/span>client<\/span>,<\/span> err<\/span>)<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>client error<\/span>'<\/span>,<\/span> client<\/span>.<\/span>id<\/span>,<\/span> err<\/span>.<\/span>message<\/span>,<\/span> err<\/span>.<\/span>stack<\/span>)<\/span>\r\n});<\/span>\r\n\r\naedes<\/span>.<\/span>on<\/span>(<\/span>'<\/span>connectionError<\/span>'<\/span>,<\/span> function<\/span> (<\/span>client<\/span>,<\/span> err<\/span>)<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>client error<\/span>'<\/span>,<\/span> client<\/span>,<\/span> err<\/span>.<\/span>message<\/span>,<\/span> err<\/span>.<\/span>stack<\/span>)<\/span>\r\n});<\/span>\r\n\r\naedes<\/span>.<\/span>on<\/span>(<\/span>'<\/span>publish<\/span>'<\/span>,<\/span> function<\/span> (<\/span>packet<\/span>,<\/span> client<\/span>)<\/span> {<\/span>\r\n    if<\/span> (<\/span>client<\/span>)<\/span> {<\/span>\r\n        console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>message from client<\/span>'<\/span>,<\/span> client<\/span>.<\/span>id<\/span>)<\/span>\r\n    }<\/span>\r\n});<\/span>\r\n\r\naedes<\/span>.<\/span>on<\/span>(<\/span>'<\/span>subscribe<\/span>'<\/span>,<\/span> function<\/span> (<\/span>subscriptions<\/span>,<\/span> client<\/span>)<\/span> {<\/span>\r\n    if<\/span> (<\/span>client<\/span>)<\/span> {<\/span>\r\n        console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>subscribe from client<\/span>'<\/span>,<\/span> subscriptions<\/span>,<\/span> client<\/span>.<\/span>id<\/span>)<\/span>\r\n    }<\/span>\r\n});<\/span>\r\n\r\naedes<\/span>.<\/span>on<\/span>(<\/span>'<\/span>unsubscribe<\/span>'<\/span>,<\/span> function<\/span> (<\/span>subscriptions<\/span>,<\/span> client<\/span>)<\/span> {<\/span>\r\n    if<\/span> (<\/span>client<\/span>)<\/span> {<\/span>\r\n        console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>unsubscribe from client<\/span>'<\/span>,<\/span> subscriptions<\/span>,<\/span> client<\/span>.<\/span>id<\/span>)<\/span>\r\n    }<\/span>\r\n});<\/span>\r\n\r\naedes<\/span>.<\/span>on<\/span>(<\/span>'<\/span>client<\/span>'<\/span>,<\/span> function<\/span> (<\/span>client<\/span>)<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>new client<\/span>'<\/span>,<\/span> client<\/span>.<\/span>id<\/span>)<\/span>\r\n});<\/span>\r\n\r\naedes<\/span>.<\/span>on<\/span>(<\/span>'<\/span>clientReady<\/span>'<\/span>,<\/span> function<\/span> (<\/span>client<\/span>)<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>client is ready<\/span>'<\/span>,<\/span> client<\/span>.<\/span>id<\/span>)<\/span>\r\n});<\/span>\r\n\r\naedes<\/span>.<\/span>on<\/span>(<\/span>'<\/span>clientDisconnect<\/span>'<\/span>,<\/span> function<\/span> (<\/span>client<\/span>)<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>client disconnected<\/span>'<\/span>,<\/span> client<\/span>.<\/span>id<\/span>)<\/span>\r\n});<\/span>\r\n\r\n\/\/ \u5b9f\u969b\u306e\u30b5\u30fc\u30d0\u7acb\u3061\u4e0a\u3052<\/span>\r\nconst<\/span> server<\/span> =<\/span> require<\/span>(<\/span>'<\/span>net<\/span>'<\/span>).<\/span>createServer<\/span>(<\/span>aedes<\/span>.<\/span>handle<\/span>);<\/span>\r\nconst<\/span> port<\/span> =<\/span> 1883<\/span>;<\/span>\r\n\r\nserver<\/span>.<\/span>listen<\/span>(<\/span>port<\/span>,<\/span> function<\/span> ()<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>`Server running at mqtt:\/\/localhost:<\/span>${<\/span>port<\/span>}<\/span>\/`<\/span>);<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u5c06\u6bcf\u4e2a\u884c\u52a8\u7684\u5185\u5bb9\u590d\u5236\u5e76\u505a\u597d\u5907\u5fd8\u3002<\/p>\n
\n
\u30a2\u30af\u30b7\u30e7\u30f3\u8aac\u660eclient\u65b0\u898f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u767b\u9332\u3055\u308c\u305f\u3068\u304dclientReady\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u521d\u671f\u5316\u5b8c\u4e86\u3057\u3001\u901a\u4fe1\u5f85\u6a5f\u72b6\u614b\u306b\u306a\u3063\u305f\u3068\u304dclientDisconnect\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u901a\u4fe1\u304c\u6b63\u5e38\u306b\u5207\u65ad\u3055\u308c\u305f\u3068\u304dclientError\u901a\u4fe1\u4e2d\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u7570\u5e38\u304c\u767a\u751f\u3057\u305f\u5834\u5408connectionError\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u521d\u671f\u5316\u306b\u5931\u6557\u3057\u305f\u5834\u5408publish\u30d1\u30d6\u30ea\u30c3\u30b7\u30e3\u30fc\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30d6\u30ed\u30fc\u30ab\u30fc\u306b\u9001\u4fe1\u3057\u305f\u6642\u306e\u51e6\u7406\u3067\u3001\u7b2c\u4e00\u5f15\u6570\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u30d1\u30b1\u30c3\u30c8\u3092\u542b\u3081\u308bsubscribe\u30b5\u30d6\u30b9\u30af\u30e9\u30a4\u30d0\u30fc\u304c\u8cfc\u8aad\u3092\u30ea\u30af\u30a8\u30b9\u30c8\u3057\u305f\u6642\u306e\u51e6\u7406\u3067\u3001\u7b2c\u4e00\u5f15\u6570\u306b\u30c8\u30d4\u30c3\u30af\u3092\u542b\u3080\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6307\u5b9aunsubscribe\u30b5\u30d6\u30b9\u30af\u30e9\u30a4\u30d0\u30fc\u304c\u8cfc\u8aad\u3092\u53d6\u308a\u6b62\u3081\u308b\u6642\u306b\u51e6\u7406\u3067\u3001\u7b2c\u4e00\u5f15\u6570\u306b\u30c8\u30d4\u30c3\u30af\u3092\u542b\u3080\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6307\u5b9aclosed\u30b5\u30fc\u30d0\u30fc\u304c\u7d42\u4e86\u3057\u305f\u5834\u5408<\/div>\n<\/div>\n
\u9996\u5148\uff0c\u56e0\u4e3a\u6211\u4eec\u60f3\u8981\u4ecenode.js\u4e0a\u8f7b\u677e\u786e\u8ba4\u8fde\u63a5\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u901a\u8fc7npm install mqtt\u5b89\u88c5\u5ba2\u6237\u7aef\u6a21\u5757\uff0c\u7136\u540e\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n
\u636e\u8bf4\uff0c\u53d1\u9001\u6d88\u606f\u7684\u4e00\u65b9\u88ab\u79f0\u4e3a\u53d1\u5e03\u8005\uff0c\u63a5\u6536\u6d88\u606f\u7684\u4e00\u65b9\u88ab\u79f0\u4e3a\u8ba2\u9605\u8005\u3002\u4e3a\u4e86\u66f4\u6613\u4e8e\u7406\u89e3\uff0c\u6211\u4eec\u53ef\u4ee5\u79f0\u4e4b\u4e3a\u53d1\u9001\u65b9\u548c\u63a5\u6536\u65b9\u3002<\/p>\n
\u9996\u5148\u9700\u8981\u521b\u5efa\u63a5\u6536\u65b9\u3002<\/p>\n
const<\/span> mqtt<\/span> =<\/span> require<\/span>(<\/span>'<\/span>mqtt<\/span>'<\/span>);<\/span>\r\nconst<\/span> client<\/span> =<\/span> mqtt<\/span>.<\/span>connect<\/span>(<\/span>'<\/span>mqtt:\/\/localhost:1883<\/span>'<\/span>);<\/span>\r\nconst<\/span> topic<\/span> =<\/span> '<\/span>mqtt\/test<\/span>'<\/span>;<\/span>\r\n\r\nclient<\/span>.<\/span>on<\/span>(<\/span>'<\/span>connect<\/span>'<\/span>,<\/span> function<\/span>()<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>subscriber connected.<\/span>'<\/span>);<\/span>\r\n});<\/span>\r\n\r\nclient<\/span>.<\/span>subscribe<\/span>(<\/span>topic<\/span>,<\/span> function<\/span>(<\/span>err<\/span>,<\/span> granted<\/span>)<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>subscriber subscribed.<\/span>'<\/span>);<\/span>\r\n});<\/span>\r\n\r\nclient<\/span>.<\/span>on<\/span>(<\/span>'<\/span>message<\/span>'<\/span>,<\/span> function<\/span>(<\/span>topic_<\/span>,<\/span> message<\/span>)<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>subscriber received topic:<\/span>'<\/span>,<\/span> topic_<\/span>,<\/span> '<\/span>message:<\/span>'<\/span>,<\/span> message<\/span>.<\/span>toString<\/span>());<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u9001\u4fe1\u65b9\u548c\u63a5\u6536\u65b9\u9700\u8981\u8bbe\u7f6e\u76f8\u540c\u7684Topic\u3002<\/p>\n
const<\/span> mqtt<\/span> =<\/span> require<\/span>(<\/span>'<\/span>mqtt<\/span>'<\/span>);<\/span>\r\nconst<\/span> client<\/span> =<\/span> mqtt<\/span>.<\/span>connect<\/span>(<\/span>'<\/span>mqtt:\/\/localhost:1883<\/span>'<\/span>);<\/span>\r\n\r\nconst<\/span> message<\/span> =<\/span> '<\/span>SAY HELLO TO MQTT<\/span>'<\/span>;<\/span>\r\nconst<\/span> topic<\/span> =<\/span> '<\/span>mqtt\/test<\/span>'<\/span>\r\n\r\nclient<\/span>.<\/span>on<\/span>(<\/span>'<\/span>connect<\/span>'<\/span>,<\/span> function<\/span>()<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>publisher connected.<\/span>'<\/span>);<\/span>\r\n    client<\/span>.<\/span>publish<\/span>(<\/span>topic<\/span>,<\/span> message<\/span>);<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>send topic:<\/span>'<\/span>,<\/span> topic<\/span>,<\/span> '<\/span>, message:<\/span>'<\/span>,<\/span> message<\/span>);<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u53ea\u9700\u6309\u7167\u7ecf\u7eaa\u4eba\u3001\u63a5\u6536\u65b9\u548c\u53d1\u9001\u65b9\u7684\u987a\u5e8f\u542f\u52a8\uff0c\u5c31\u80fd\u53d1\u9001\u6d88\u606f\u3002<\/p>\n
\u6700\u521d\u304b\u3089\u8d2b\u5f31\u7684\u7f51\u7edc\u8fde\u63a5\u662f\u9884\u671f\u7684\uff0c\u4f46\u91cd\u65b0\u8fde\u63a5\u7684\u8003\u8651\u5e76\u672a\u7ecf\u8fc7\u786e\u8ba4\uff0c\u662f\u5426\u9700\u8981\u8003\u8651\u5e76\u4e0d\u786e\u5b9a\u3002<\/p>\n
\u5728C#\u4e2d\u7684\u6570\u636e\u4f20\u8f93<\/h1>\n
\u4eceGitHub\u4e0a\u4e0b\u8f7d\u5e76\u4f7f\u7528MQTTnet\u3002\u8bb8\u53ef\u8bc1\u662fMIT\u3002\u56e0\u4e3a\u81ea\u5df1\u7f16\u8bd1\u5f88\u9ebb\u70e6\uff0c\u6240\u4ee5\u5c1d\u8bd5\u4e0b\u8f7dWindows\u7248\u672cv3.0.16\u3002\u4f3c\u4e4e\u5728Unity\u4e2d\u4f7f\u7528\u6709\u7248\u672c\u9650\u5236\u3002<\/p>\n
\u4f7f\u7528\u89e3\u538b\u540e\u7684zip\u6587\u4ef6\u4e2d\u7684MQTTnet.dll\u3002
\n\u5404\u79cd\u8bbe\u7f6e\u7b49\u5728\u5b98\u65b9wiki\u4e0a\u90fd\u6709\u4ecb\u7ecd\u3002<\/p>\n
\u7f16\u8bd1\u5c06\u7ee7\u7eed\u4f7f\u7528.net\u7684csc\uff08\u9700\u8981\u53c2\u8003dll\u9009\u9879\uff09\u3002\u5728.NET 4\u7cfb\u5217\u4e2d\u8fdb\u884c\u7f16\u8bd1\u3002\u9519\u8befCS0012\uff1a\u7c7b\u578b’System.IDisposable’\u5728\u672a\u88ab\u5f15\u7528\u7684\u7a0b\u5e8f\u96c6\u4e2d\u5b9a\u4e49\u3002\u60a8\u5fc5\u987b\u6dfb\u52a0\u5bf9\u7a0b\u5e8f\u96c6’System.Runtime, Version=5.0.0.0’\u7684\u5f15\u7528\u3002\u51fa\u73b0\u8fd9\u4e2a\u9519\u8bef\u662f\u56e0\u4e3a\u4ec5\u6709MQTTnet.dll\u4e0d\u591f\uff0c\u4ee5\u4e0b\u662f\u51fa\u9519\u7684\u90e8\u5206\u5217\u4e3e\uff1a<\/p>\n
C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\csc.exe \/r:System.Runtime.dll,MQTTnet.dll,System.Private.CoreLib.dll -warn:0 publisher.cs\r\n<\/code><\/pre>\n
\u4f9d\u8d56\u5173\u7cfb\u9519\u8bef\u5df2\u6d88\u9664\uff08\u867d\u7136\u6709\u5f88\u591a\u8b66\u544a\u4f46\u5ffd\u7565\uff09
\n\u7136\u800c\uff0c\u51fa\u73b0\u4e86\u7c7b\u91cd\u590d\u95ee\u9898\uff0c\u5982’The type ‘System.TimeSpan’ exists in both…’\uff0c\u4ee5\u53caCS1660\u548cCS4010\u4e0e\u59d4\u6258\u76f8\u5173\u7684lambda\u8868\u8fbe\u5f0f\u9519\u8bef\u3002<\/p>\n
\u4e91\u3005\u7684\u9519\u8bef\u5df2\u7ecf\u6d88\u5931\u4e86\uff0c\u56e0\u4e3a\u6211\u5f3a\u5236\u4f7f\u7528\u9009\u9879\u4ece\u6307\u5b9a\u7684DLL\u4e2d\u800c\u4e0d\u662f.NET\u6807\u51c6\u4e2d\u52a0\u8f7d\u4e86System\u3002<\/p>\n
\u4e0d\u80fd\u5728catch\u5b50\u53e5\u7684\u4e3b\u4f53\u4e2d\u7b49\u5f85\u53d1\u751f\u7684\u9519\u8bef\u662f\u7531C#\u7684\u7248\u672c\u6240\u81f4\uff0c\u56e0\u4e3a\u6211\u6ca1\u6709\u7ed9\u9519\u8bef\u52a0\u4e0a\u5ef6\u8fdf\u3002<\/p>\n
\u7ecf\u8fc7\u5404\u79cd\u5c1d\u8bd5\uff0c\u6700\u7ec8\u7f16\u8bd1\u6210\u529f\u7684\u65b9\u6cd5\u5982\u4e0b\u3002<\/p>\n
using<\/span> MQTTnet<\/span>;<\/span>\r\nusing<\/span> MQTTnet.Client<\/span>;<\/span>\r\nusing<\/span> MQTTnet.Client.Options<\/span>;<\/span>\r\nusing<\/span> MQTTnet.Client.Connecting<\/span>;<\/span>\r\nusing<\/span> MQTTnet.Client.Receiving<\/span>;<\/span>\r\nusing<\/span> MQTTnet.Client.Disconnecting<\/span>;<\/span>\r\nusing<\/span> System<\/span>;<\/span>\r\nusing<\/span> System.Threading<\/span>;<\/span>\r\nusing<\/span> System.Threading.Tasks<\/span>;<\/span>\r\n\r\nclass<\/span> publisher<\/span> {<\/span>\r\n    static<\/span> IMqttClient<\/span> mqttClient<\/span> =<\/span> new<\/span> MqttFactory<\/span>().<\/span>CreateMqttClient<\/span>();<\/span>\r\n    static<\/span> IMqttClientOptions<\/span> options<\/span>;<\/span>\r\n    static<\/span> string<\/span> topic<\/span> =<\/span> \"mqtt\/test\"<\/span>;<\/span>\r\n\r\n    static<\/span> void<\/span> Main<\/span>(<\/span>string<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n        try<\/span>{<\/span>\r\n            options<\/span> =<\/span> new<\/span> MqttClientOptionsBuilder<\/span>()<\/span>\r\n            .<\/span>WithTcpServer<\/span>(<\/span>\"localhost\"<\/span>,<\/span>1883<\/span>)<\/span>\r\n            .<\/span>WithCleanSession<\/span>()<\/span>\r\n            .<\/span>Build<\/span>();<\/span>\r\n            \/\/ SecureTPC connection = .WithTls()<\/span>\r\n\r\n            OnStarted<\/span>();<\/span>\r\n            while<\/span>(<\/span>true<\/span>){<\/span>\r\n                Thread<\/span>.<\/span>Sleep<\/span>(<\/span>1000<\/span>);<\/span>\r\n                PubMessage<\/span>();<\/span>\r\n            }<\/span>\r\n        }<\/span>catch<\/span>(<\/span>Exception<\/span> ex<\/span>){<\/span>\r\n            Console<\/span>.<\/span>WriteLine<\/span>(<\/span>ex<\/span>);<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n\r\n\r\n    static<\/span> void<\/span> OnStarted<\/span>(){<\/span>\r\n        mqttClient<\/span>.<\/span>SubscribeAsync<\/span>(<\/span>new<\/span> TopicFilterBuilder<\/span>().<\/span>WithTopic<\/span>(<\/span>topic<\/span>).<\/span>Build<\/span>());<\/span>\r\n\r\n        mqttClient<\/span>.<\/span>UseConnectedHandler<\/span>(<\/span>async<\/span>  (<\/span>e<\/span>)<\/span> =><\/span>\r\n        {<\/span>\r\n            Console<\/span>.<\/span>WriteLine<\/span>(<\/span>\"### SUBSCRIBED ###\"<\/span>);<\/span>\r\n        });<\/span>\r\n\r\n        \/\/ \u9001\u4fe1<\/span>\r\n        mqttClient<\/span>.<\/span>UseDisconnectedHandler<\/span>(<\/span>async<\/span> (<\/span>e<\/span>)<\/span> =><\/span> {<\/span>\r\n            Console<\/span>.<\/span>WriteLine<\/span>(<\/span>\"### DISCONNECTED FROM SERVER ###\"<\/span>);<\/span>\r\n            await<\/span> Task<\/span>.<\/span>Delay<\/span>(<\/span>TimeSpan<\/span>.<\/span>FromSeconds<\/span>(<\/span>3<\/span>));<\/span>\r\n            try<\/span>{<\/span> Connect<\/span>();<\/span> }<\/span>\r\n            catch<\/span> {<\/span> Console<\/span>.<\/span>WriteLine<\/span>(<\/span>\"### RECONNECTING FAILED ###\"<\/span>);<\/span> }<\/span>\r\n        });<\/span>\r\n\r\n        \/\/ \u53d7\u4fe1<\/span>\r\n        mqttClient<\/span>.<\/span>UseApplicationMessageReceivedHandler<\/span>(<\/span> (<\/span>e<\/span>)<\/span> =><\/span> {<\/span>\r\n            Console<\/span>.<\/span>WriteLine<\/span>(<\/span>System<\/span>.<\/span>Text<\/span>.<\/span>Encoding<\/span>.<\/span>UTF8<\/span>.<\/span>GetString<\/span>(<\/span>e<\/span>.<\/span>ApplicationMessage<\/span>.<\/span>Payload<\/span>));<\/span>\r\n        });<\/span>\r\n    }<\/span>\r\n\r\n    static<\/span> async<\/span> void<\/span> Connect<\/span>(){<\/span>\r\n        var<\/span> retry<\/span> =<\/span> 0<\/span>;<\/span>\r\n        while<\/span> (!<\/span>mqttClient<\/span>.<\/span>IsConnected<\/span> &&<\/span> retry<\/span> <<\/span> 5<\/span>)<\/span>\r\n        {<\/span>\r\n            try<\/span>\r\n            {<\/span>\r\n                mqttClient<\/span>.<\/span>ConnectAsync<\/span>(<\/span>options<\/span>).<\/span>Wait<\/span>();<\/span> \/\/CancellationToken.None\u306f\u30a8\u30e9\u30fc\u306b\u306a\u3063\u305f<\/span>\r\n            }<\/span>\r\n            catch<\/span>\r\n            {<\/span>\r\n                \/\/ \u6700\u8fd1\u306eC#\u306a\u3089\u3053\u308c\u304c\u3067\u304d\u308b\u306e\u3067\u518d\u63a5\u7d9a\u30c8\u30e9\u30a4\u306b\u306a\u308b<\/span>\r\n                \/\/await Task.Delay(TimeSpan.FromSeconds(1));<\/span>\r\n            }<\/span>\r\n            retry<\/span>++;<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n\r\n    static<\/span> void<\/span> PubMessage<\/span>()<\/span> {<\/span>\r\n       Console<\/span>.<\/span>WriteLine<\/span>(<\/span>\"Send\"<\/span>);<\/span>\r\n\r\n       var<\/span> message<\/span> =<\/span> new<\/span> MqttApplicationMessageBuilder<\/span>()<\/span>\r\n           .<\/span>WithTopic<\/span>(<\/span>topic<\/span>)<\/span>\r\n           .<\/span>WithPayload<\/span>(<\/span>\"Hello World\"<\/span>)<\/span>\r\n           .<\/span>WithExactlyOnceQoS<\/span>()<\/span>\r\n           .<\/span>WithRetainFlag<\/span>()<\/span>\r\n           .<\/span>Build<\/span>();<\/span>\r\n\r\n       mqttClient<\/span>.<\/span>PublishAsync<\/span>(<\/span>message<\/span>);<\/span> \/\/ await\u3067\u304d\u306a\u304b\u3063\u305f<\/span>\r\n   }<\/span>\r\n}}<\/span>\r\n<\/code><\/pre>\n
\u56e0\u4e3a\u7f16\u8bd1\u6210\u529f\u4e86\uff0c\u6240\u4ee5\u6267\u884c\u65f6\u51fa\u73b0\u4e86 System.TypeLoadException: \u65b9\u6cd5 ‘Main’ \u6ca1\u6709\u5b9e\u73b0 (\u6ca1\u6709 RVA) \u7684\u9519\u8bef\u3002
\n\u6211\u77e5\u9053\u5728 main \u7684 MqttClientOptionsBuilder \u7684 WithTcpServer \u7684\u90e8\u5206\u51fa\u4e86\u95ee\u9898\uff0c\u4f46\u662f\u4e0d\u77e5\u9053\u5982\u4f55\u89e3\u51b3\uff0c
\n\u6240\u4ee5\u6682\u65f6\u5148\u8ba4\u4e3a\u8fd9\u6b21\u7f16\u8bd1\u901a\u8fc7\u4e86\u5c31\u597d\u3002
\n\u4ece Visual Studio \u7f16\u8bd1\u80fd\u884c\u5417\uff1f\u662f\u4e0d\u662f\u9700\u8981\u66f4\u9ad8\u7248\u672c\u7684 .NET\uff1f\u6211\u5bf9 C# \u4e0d\u719f\u6089\uff0c\u4e0d\u6e05\u695a\uff0c\u53ea\u80fd\u653e\u5f03\u4e86\u3002<\/p>\n
\u4ece\u6d4f\u89c8\u5668\u53d1\u51fa\u7684MQTT<\/h1>\n
\u8fd9\u91cc\u6709\u4e00\u4e2a\u6b63\u5728\u4f7f\u7528MQTT\u7684\u793a\u4f8b\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n
\u7531\u4e8e\u65e0\u6cd5\u666e\u901a\u8fde\u63a5\uff0c\u6240\u4ee5\u9700\u8981\u4f7f\u7528WebSocket\uff0c\u8fd9\u610f\u5473\u7740\u670d\u52a1\u5668\u7aef\u4e5f\u9700\u8981\u63a5\u6536WebSocket\uff0c\u6240\u4ee5\u4ec5\u4ec5\u542f\u52a8\u7684nodejs\u4ee3\u7406\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002<\/p>\n
\u56e0\u6b64\uff0c\u6839\u636e\u8fd9\u91cc\u7684\u53c2\u8003\u95ee\u9898\uff0c\u53ef\u4ee5\u5c06MQTT\u65b9\u9762\u7684handle\u6307\u5b9a\u7ed9websocket-stream\u7684handle\u3002<\/p>\n
npm install websocket-stream<\/p>\n
\u5728WebSocket\u4e0a\u8fdb\u884c\u5b89\u88c5\uff0c\u5e76\u5c06\u5176\u8ffd\u52a0\u5230aedes.handle\u4e2d\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
\/\/ over WebScoekt<\/span>\r\nconst<\/span> wsPort<\/span> =<\/span> 3000<\/span>;<\/span>\r\nconst<\/span> httpServer<\/span> =<\/span> require<\/span>(<\/span>'<\/span>http<\/span>'<\/span>).<\/span>createServer<\/span>();<\/span>\r\nconst<\/span> ws<\/span> =<\/span> require<\/span>(<\/span>'<\/span>websocket-stream<\/span>'<\/span>);<\/span>\r\nws<\/span>.<\/span>createServer<\/span>({<\/span> server<\/span>:<\/span> httpServer<\/span> },<\/span> aedes<\/span>.<\/span>handle<\/span>);<\/span>\r\n\r\nhttpServer<\/span>.<\/span>listen<\/span>(<\/span>wsPort<\/span>,<\/span> function<\/span> ()<\/span> {<\/span>\r\n    console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>Aedes MQTT-WS listening on port: <\/span>'<\/span> +<\/span> wsPort<\/span>)<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
HTML\u4fa7\u4fdd\u6301\u4e86\u6837\u672c\u7684\u539f\u8c8c\uff0c\u53ea\u662f\u66f4\u6539\u4e86\u5730\u5740\u3002<\/p>\n
<!DOCTYPE html><\/span>\r\n<html><\/span>\r\n<head><\/span>\r\n    <title><\/span>MQTT.js Test<\/title><\/span>\r\n    <script <\/span>src=<\/span>\"https:\/\/unpkg.com\/mqtt\/dist\/mqtt.min.js\"<\/span>><\/script><\/span>\r\n<\/head><\/span>\r\n<body><\/span>\r\n    <p><\/span>MQTT.js Test<\/p><\/span>\r\n\r\n    <input<\/span> type=<\/span>\"button\"<\/span> value=<\/span>\"Publish\"<\/span> onclick=<\/span>\"OnButtonClick()\"<\/span>\/><\/span>\r\n\r\n    <script><\/span>\r\n        var<\/span> client<\/span> =<\/span> mqtt<\/span>.<\/span>connect<\/span>(<\/span>'<\/span>ws:\/\/localhost:3000<\/span>'<\/span>);<\/span>\r\n\r\n        client<\/span>.<\/span>on<\/span>(<\/span>'<\/span>connect<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n            console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>connected<\/span>'<\/span>);<\/span>\r\n            client<\/span>.<\/span>subscribe<\/span>(<\/span>'<\/span>test<\/span>'<\/span>);<\/span>\r\n        });<\/span>\r\n\r\n        client<\/span>.<\/span>on<\/span>(<\/span>'<\/span>message<\/span>'<\/span>,<\/span> (<\/span>topic<\/span>,<\/span> message<\/span>)<\/span> =><\/span> {<\/span>\r\n            console<\/span>.<\/span>log<\/span>(<\/span>topic<\/span> +<\/span> '<\/span> : <\/span>'<\/span> +<\/span> message<\/span>);<\/span>\r\n        });<\/span>\r\n\r\n        function<\/span> OnButtonClick<\/span>()<\/span> {<\/span>\r\n            console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>onClick<\/span>'<\/span>);<\/span>\r\n            client<\/span>.<\/span>publish<\/span>(<\/span>'<\/span>mqtt\/test<\/span>'<\/span>,<\/span> '<\/span>hello world!<\/span>'<\/span>);<\/span>\r\n        }<\/span>\r\n\r\n    <\/script><\/span>\r\n<\/body><\/span>\r\n<\/html><\/span>\r\n<\/code><\/pre>\n
\u5f53\u5728\u6d4f\u89c8\u5668\u4e0a\u70b9\u51fb\u4ee5\u542f\u52a8\u6700\u521d\u521b\u5efa\u7684node.js\u8ba2\u9605\u540e\uff0c\u5c06\u663e\u793a\u4e00\u6761\u6d88\u606f\u3002<\/p>\n
\u56e0\u4e3a\u5b83\u591a\u5c11\u6709\u70b9\u7528\uff0c\u6240\u4ee5\u7ed3\u675f\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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