{"id":44661,"date":"2025-06-20T07:32:16","date_gmt":"2025-06-19T23:32:16","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/44661.html"},"modified":"2025-06-20T07:32:16","modified_gmt":"2025-06-19T23:32:16","slug":"asp-net-core-signalr%e7%9a%84%e5%9f%ba%e6%9c%ac%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/44661.html","title":{"rendered":"ASP.NET Core SignalR\u7684\u57fa\u672c\u4f7f\u7528"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>\u4e00\u3001SignalR<\/li>\n<li>\u662f\u4ec0\u4e48&#xff1f;<\/li>\n<li>\n<ul>\n<li>\u5728 ASP.NET Core \u4e2d\u7684\u5173\u952e\u7279\u6027&#xff1a;<\/li>\n<li>SignalR \u5de5\u4f5c\u539f\u7406\u7b80\u56fe&#xff1a;<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u4f7f\u7528\u6b65\u9aa4<\/li>\n<li>\n<ul>\n<li>1.\u521b\u5efaASP.NET Core web Api \u9879\u76ee<\/li>\n<li>2.\u6dfb\u52a0 SignalR \u5305<\/li>\n<li>3.\u521b\u5efa SignalR Hub<\/li>\n<li>4.\u914d\u7f6e\u670d\u52a1\u4e0e\u4e2d\u95f4\u4ef6<\/li>\n<li>5.\u521b\u5efa\u63a7\u5236\u5668(\u6a21\u62df\u670d\u52a1\u5668\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u6d88\u606f)<\/li>\n<li>6.\u521b\u5efaVue\u524d\u7aef\u9879\u76ee&#xff08;\u6a21\u62df\u5ba2\u6237\u7aef\u53d1\u9001\u6d88\u606f&#xff09;<\/li>\n<li>7.\u8fd0\u884c\u4f7f\u7528<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001\u5173\u952e\u914d\u7f6e\u8bf4\u660e<\/li>\n<li>\u56db\u3001\u6545\u969c\u6392\u67e5<\/li>\n<li>\u603b\u7ed3<\/li>\n<\/ul>\n<hr \/>\n<h2>\u524d\u8a00<\/h2>\n<p>\u5728 ASP.NET Core \u4e2d&#xff0c; SignalR \u662f\u7528\u4e8e\u5b9e\u73b0\u5b9e\u65f6\u3001\u53cc\u5411\u901a\u4fe1\u7684\u6280\u672f\u3002<\/p>\n<h2>\u4e00\u3001SignalR<\/h2>\n<h2>\u662f\u4ec0\u4e48&#xff1f;<\/h2>\n<p>\u4e00\u4e2a\u7531\u5fae\u8f6f\u5f00\u53d1\u7684\u9ad8\u7ea7\u5e93&#xff0c;\u6784\u5efa\u5728 ASP.NET Core \u4e4b\u4e0a&#xff0c;\u7528\u4e8e\u7b80\u5316\u5411\u5e94\u7528\u6dfb\u52a0\u5b9e\u65f6 Web \u529f\u80fd\u3002<\/p>\n<ul>\n<li>\n<p>\u6838\u5fc3\u76ee\u6807&#xff1a; \u8ba9\u5f00\u53d1\u8005\u80fd\u591f\u8f7b\u677e\u5b9e\u73b0\u670d\u52a1\u5668\u5230\u5ba2\u6237\u7aef\u7684\u5b9e\u65f6\u63a8\u9001&#xff08;\u4f8b\u5982&#xff1a;\u804a\u5929\u3001\u901a\u77e5\u3001\u4eea\u8868\u76d8\u66f4\u65b0\u3001\u534f\u4f5c\u7f16\u8f91&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u62bd\u8c61\u5c42&#xff1a; \u5b83\u5728\u5e95\u5c42\u81ea\u52a8\u9009\u62e9\u5e76\u4f7f\u7528\u6700\u4f73\u7684\u4f20\u8f93\u534f\u8bae\u6765\u5efa\u7acb\u5b9e\u65f6\u8fde\u63a5\u3002\u9996\u9009\u662f WebSocket&#xff0c;\u4f46\u5982\u679c WebSocket \u4e0d\u53ef\u7528&#xff08;\u4f8b\u5982\u65e7\u6d4f\u89c8\u5668\u3001\u67d0\u4e9b\u7f51\u7edc\u9650\u5236&#xff09;&#xff0c;\u5b83\u4f1a\u81ea\u52a8\u4f18\u96c5\u964d\u7ea7\u5230\u5176\u4ed6\u6280\u672f&#xff0c;\u5982 Server-Sent Events (SSE) \u6216 Long Polling\u3002\u5f00\u53d1\u8005\u65e0\u9700\u5173\u5fc3\u5e95\u5c42\u4f7f\u7528\u7684\u662f\u54ea\u79cd\u4f20\u8f93\u65b9\u5f0f\u3002<\/p>\n<\/li>\n<li>\n<p>\u57fa\u4e8e Hub \u7684\u6a21\u578b&#xff1a; SignalR \u7684\u6838\u5fc3\u62bd\u8c61\u662f Hub\u3002Hub \u662f\u4e00\u4e2a\u9ad8\u7ea7\u7ba1\u9053&#xff0c;\u5141\u8bb8\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u76f4\u63a5\u76f8\u4e92\u8c03\u7528\u65b9\u6cd5&#xff08;RPC \u98ce\u683c&#xff09;\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u5728 ASP.NET Core \u4e2d\u7684\u5173\u952e\u7279\u6027&#xff1a;<\/h3>\n<ul>\n<li>\u81ea\u52a8\u4f20\u8f93\u534f\u5546\u4e0e\u56de\u9000&#xff1a; \u65e0\u7f1d\u5904\u7406\u8fde\u63a5\u5efa\u7acb\u548c\u4f20\u8f93\u9009\u62e9\u3002<\/li>\n<li>\u8fde\u63a5\u7ba1\u7406&#xff1a; \u5185\u7f6e\u7ba1\u7406\u8fde\u63a5\u7684\u751f\u547d\u5468\u671f\u3001\u8fde\u63a5\u7ec4&#xff08;Groups&#xff09;\u548c\u7528\u6237&#xff08;Users&#xff09;&#xff0c;\u65b9\u4fbf\u5b9e\u73b0\u5e7f\u64ad&#xff08;\u6240\u6709\u5ba2\u6237\u7aef&#xff09;\u3001\u7ec4\u64ad&#xff08;\u7279\u5b9a\u7ec4&#xff09;\u3001\u5355\u64ad&#xff08;\u7279\u5b9a\u5ba2\u6237\u7aef\u6216\u7528\u6237&#xff09;\u3002<\/li>\n<li>\u81ea\u52a8\u91cd\u65b0\u8fde\u63a5&#xff1a; \u63d0\u4f9b\u5ba2\u6237\u7aef API \u5728\u8fde\u63a5\u610f\u5916\u65ad\u5f00\u65f6\u5c1d\u8bd5\u81ea\u52a8\u91cd\u65b0\u8fde\u63a5\u3002<\/li>\n<li>\u7b80\u5355\u7684\u7f16\u7a0b\u6a21\u578b (RPC)&#xff1a;\n<ul>\n<li>\u670d\u52a1\u5668\u7aef&#xff1a; \u5b9a\u4e49\u7ee7\u627f\u81ea Hub \u7684\u7c7b&#xff0c;\u5e76\u5728\u5176\u4e2d\u58f0\u660e\u5ba2\u6237\u7aef\u53ef\u4ee5\u8c03\u7528\u7684 public \u65b9\u6cd5\u3002<\/li>\n<li>\u5ba2\u6237\u7aef&#xff1a; \u63d0\u4f9b\u591a\u79cd\u8bed\u8a00\u7684\u5ba2\u6237\u7aef\u5e93&#xff08;JavaScript, .NET, Java \u7b49&#xff09;&#xff0c;\u8c03\u7528\u670d\u52a1\u5668 Hub \u4e0a\u7684\u65b9\u6cd5&#xff0c;\u5e76\u6ce8\u518c\u5904\u7406\u7a0b\u5e8f\u6765\u54cd\u5e94\u670d\u52a1\u5668\u8c03\u7528\u7684\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u53ef\u6269\u5c55\u6027&#xff1a; \u652f\u6301\u901a\u8fc7 SignalR Backplane&#xff08;\u5982 Azure SignalR Service, Redis&#xff09;\u5c06\u6d88\u606f\u5206\u53d1\u5230\u591a\u4e2a\u670d\u52a1\u5668\u5b9e\u4f8b&#xff0c;\u5b9e\u73b0\u6a2a\u5411\u6269\u5c55\u3002<\/li>\n<li>\u4e0e ASP.NET Core \u96c6\u6210&#xff1a; \u6df1\u5ea6\u96c6\u6210\u8eab\u4efd\u8ba4\u8bc1&#xff08;\u5982 [Authorize] \u7279\u6027&#xff09;\u3001\u4f9d\u8d56\u6ce8\u5165\u7b49\u3002<\/li>\n<\/ul>\n<h3>SignalR \u5de5\u4f5c\u539f\u7406\u7b80\u56fe&#xff1a;<\/h3>\n<p>&#096;&#096;&#096;csharp<br \/>\n[Client]  &lt;&#8212;(\u9996\u9009 WebSocket, \u6b21\u9009 SSE\/Long Polling)&#8212;&gt;  [ASP.NET Core Server]<br \/>\n    |                                                         |<br \/>\n    |&#8212;-(\u8c03\u7528) ServerMethod(args) &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&gt;| (Hub \u65b9\u6cd5)<br \/>\n    |&lt;&#8212;(\u8c03\u7528) ClientMethod(args) &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;| (Clients.Caller, Clients.All, etc.)<br \/>\n&#096;&#096;&#096;<\/p>\n<h2>\u4e8c\u3001\u4f7f\u7528\u6b65\u9aa4<\/h2>\n<h3>1.\u521b\u5efaASP.NET Core web Api \u9879\u76ee<\/h3>\n<h3>2.\u6dfb\u52a0 SignalR \u5305<\/h3>\n<li>\u6267\u884c\u5b89\u88c5\u547d\u4ee4install<span class=\"token operator\">&#8211;<\/span>package Microsoft<span class=\"token punctuation\">.<\/span>AspNetCore<span class=\"token punctuation\">.<\/span>SignalR\n <\/li>\n<h3>3.\u521b\u5efa SignalR Hub<\/h3>\n<li>\n<p>MyHubService.cs<\/p>\n<p> <span class=\"token keyword\">using<\/span> <span class=\"token namespace\">Microsoft<span class=\"token punctuation\">.<\/span>AspNetCore<span class=\"token punctuation\">.<\/span>SignalR<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">namespace<\/span> <span class=\"token namespace\">SignalRDemo<span class=\"token punctuation\">.<\/span>HubService<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyHubService<\/span><span class=\"token punctuation\">:<\/span><span class=\"token type-list\"><span class=\"token class-name\">Hub<\/span><\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">Task<\/span> <span class=\"token function\">SendMessageAsync<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> user<span class=\"token punctuation\">,<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> content<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> connectionId<span class=\"token operator\">&#061;<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>Context<span class=\"token punctuation\">.<\/span>ConnectionId<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> msg <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">connectionId<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">,<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">DateTime<span class=\"token punctuation\">.<\/span>Now<span class=\"token punctuation\">.<\/span><span class=\"token function\">ToString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">:<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">user<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> Clients<span class=\"token punctuation\">.<\/span>All<span class=\"token punctuation\">.<\/span><span class=\"token function\">SendAsync<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;ReceivePubMsg&#034;<\/span><span class=\"token punctuation\">,<\/span> msg<span class=\"token punctuation\">,<\/span> content<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<h3>4.\u914d\u7f6e\u670d\u52a1\u4e0e\u4e2d\u95f4\u4ef6<\/h3>\n<li>Program.cs<span class=\"token keyword\">using<\/span> <span class=\"token namespace\">SignalRDemo<span class=\"token punctuation\">.<\/span>HubService<\/span><span class=\"token punctuation\">;<\/span>\n<p><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> builder <span class=\"token operator\">&#061;<\/span> WebApplication<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateBuilder<\/span><span class=\"token punctuation\">(<\/span>args<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ Add services to the container.<\/span><\/p>\n<p>builder<span class=\"token punctuation\">.<\/span>Services<span class=\"token punctuation\">.<\/span><span class=\"token function\">AddControllers<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ Learn more about configuring Swagger\/OpenAPI at https:\/\/aka.ms\/aspnetcore\/swashbuckle<\/span><br \/>\nbuilder<span class=\"token punctuation\">.<\/span>Services<span class=\"token punctuation\">.<\/span><span class=\"token function\">AddEndpointsApiExplorer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nbuilder<span class=\"token punctuation\">.<\/span>Services<span class=\"token punctuation\">.<\/span><span class=\"token function\">AddSwaggerGen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u6dfb\u52a0 SignalR \u670d\u52a1<\/span><br \/>\nbuilder<span class=\"token punctuation\">.<\/span>Services<span class=\"token punctuation\">.<\/span><span class=\"token function\">AddSignalR<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u8de8\u57df<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><\/span> urls <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token string\">&#034;http:\/\/localhost:5173&#034;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\nbuilder<span class=\"token punctuation\">.<\/span>Services<span class=\"token punctuation\">.<\/span><span class=\"token function\">AddCors<\/span><span class=\"token punctuation\">(<\/span>opt <span class=\"token operator\">&#061;&gt;<\/span><br \/>\n        opt<span class=\"token punctuation\">.<\/span><span class=\"token function\">AddDefaultPolicy<\/span><span class=\"token punctuation\">(<\/span>builder <span class=\"token operator\">&#061;&gt;<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">WithOrigins<\/span><span class=\"token punctuation\">(<\/span>urls<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span><span class=\"token function\">AllowAnyMethod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">AllowAnyHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">AllowCredentials<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> app <span class=\"token operator\">&#061;<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">Build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ Configure the HTTP request pipeline.<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>app<span class=\"token punctuation\">.<\/span>Environment<span class=\"token punctuation\">.<\/span><span class=\"token function\">IsDevelopment<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    app<span class=\"token punctuation\">.<\/span><span class=\"token function\">UseSwagger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    app<span class=\"token punctuation\">.<\/span><span class=\"token function\">UseSwaggerUI<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">UseCors<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">UseHttpsRedirection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>app<span class=\"token punctuation\">.<\/span><span class=\"token function\">UseAuthorization<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u914d\u7f6e\u8def\u7531<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token generic-method\"><span class=\"token function\">MapHub<\/span><span class=\"token generic class-name\"><span class=\"token punctuation\">&lt;<\/span>MyHubService<span class=\"token punctuation\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/Hubs\/MyHubService&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ SignalR \u7ec8\u7ed3\u70b9<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">MapControllers<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>app<span class=\"token punctuation\">.<\/span><span class=\"token function\">Run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<\/li>\n<h3>5.\u521b\u5efa\u63a7\u5236\u5668(\u6a21\u62df\u670d\u52a1\u5668\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u6d88\u606f)<\/h3>\n<li>TestController.cs<span class=\"token keyword\">using<\/span> <span class=\"token namespace\">Microsoft<span class=\"token punctuation\">.<\/span>AspNetCore<span class=\"token punctuation\">.<\/span>Http<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token namespace\">Microsoft<span class=\"token punctuation\">.<\/span>AspNetCore<span class=\"token punctuation\">.<\/span>Mvc<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token namespace\">Microsoft<span class=\"token punctuation\">.<\/span>AspNetCore<span class=\"token punctuation\">.<\/span>SignalR<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token namespace\">SignalRDemo<span class=\"token punctuation\">.<\/span>Entity<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token namespace\">SignalRDemo<span class=\"token punctuation\">.<\/span>HubService<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">namespace<\/span> <span class=\"token namespace\">SignalRDemo<span class=\"token punctuation\">.<\/span>Controllers<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token punctuation\">[<\/span><span class=\"token attribute\"><span class=\"token class-name\">Route<\/span><span class=\"token attribute-arguments\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;api\/[controller]\/[action]&#034;<\/span><span class=\"token punctuation\">)<\/span><\/span><\/span><span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token punctuation\">[<\/span><span class=\"token attribute\"><span class=\"token class-name\">ApiController<\/span><\/span><span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestController<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token class-name\">ControllerBase<\/span><\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">readonly<\/span> <span class=\"token class-name\">IHubContext<span class=\"token punctuation\">&lt;<\/span>MyHubService<span class=\"token punctuation\">&gt;<\/span><\/span> _hubContext<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">public<\/span> <span class=\"token function\">TestController<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">IHubContext<span class=\"token punctuation\">&lt;<\/span>MyHubService<span class=\"token punctuation\">&gt;<\/span><\/span> hubContext<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            _hubContext <span class=\"token operator\">&#061;<\/span> hubContext<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token punctuation\">[<\/span><span class=\"token attribute\"><span class=\"token class-name\">HttpPost<\/span><span class=\"token attribute-arguments\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;broadcast&#034;<\/span><span class=\"token punctuation\">)<\/span><\/span><\/span><span class=\"token punctuation\">]<\/span><br \/>\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">async<\/span> <span class=\"token return-type class-name\">Task<span class=\"token punctuation\">&lt;<\/span>IActionResult<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">BroadcastMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token attribute\"><span class=\"token class-name\">FromBody<\/span><\/span><span class=\"token punctuation\">]<\/span> <span class=\"token class-name\">MessageModel<\/span> msg<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4ece\u670d\u52a1\u7aef\u4e3b\u52a8\u63a8\u9001\u6d88\u606f<\/span><br \/>\n            <span class=\"token keyword\">await<\/span> _hubContext<span class=\"token punctuation\">.<\/span>Clients<span class=\"token punctuation\">.<\/span>All<span class=\"token punctuation\">.<\/span><span class=\"token function\">SendAsync<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;ReceivePubMsg&#034;<\/span><span class=\"token punctuation\">,<\/span> msg<span class=\"token punctuation\">.<\/span>User<span class=\"token punctuation\">,<\/span> msg<span class=\"token punctuation\">.<\/span>Content<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token function\">Ok<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<h3>6.\u521b\u5efaVue\u524d\u7aef\u9879\u76ee&#xff08;\u6a21\u62df\u5ba2\u6237\u7aef\u53d1\u9001\u6d88\u606f&#xff09;<\/h3>\n<li>\u6253\u5f00\u6587\u4ef6\u5939&#xff08;D:\\\\Project\\\\MyProject\\\\SignalRProject\\\\SignalRDemo&#xff09;<\/li>\n<li>\u521b\u5efa\u6587\u4ef6\u5939&#xff1a;Front<\/li>\n<li>\u5f53\u524d\u6587\u4ef6\u5939\u4e0b\u8fd0\u884ccmd<\/li>\n<li>\u6267\u884c\u547d\u4ee4\n<ul>\n<li>npm create vite&#064;latest SignalRClient1<\/li>\n<li>\u8f93\u5165y,\u56de\u8f66<\/li>\n<li>\u9009\u62e9JavaScript<\/li>\n<li>\u7b49\u5f85\u9879\u76ee\u521b\u5efa\u5b8c\u6210<\/li>\n<li>npm<\/li>\n<li>npm run dev<\/li>\n<\/ul>\n<\/li>\n<li>\u8fdb\u5165\u524d\u7aef\u9879\u76ee\u6587\u4ef6\u5939D:\\\\Project\\\\MyProject\\\\SignalRProject\\\\SignalRDemo\\\\Front\\\\SignalClient1\\\\src\\\\components&#xff0c;\u7f16\u8f91HelloWorld.vue\u6587\u4ef6\u3002<\/li>\n<li>HelloWorld.vue<span class=\"token operator\">&lt;<\/span>template<span class=\"token operator\">&gt;<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">div<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;padding: 20px; max-width: 800px; margin: 0 auto;&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n      <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">h2<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;color: #2c3e50;&#034;<\/span><span class=\"token operator\">&gt;<\/span>SignalR \u804a\u5929\u5ba4<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>h2<span class=\"token operator\">&gt;<\/span><\/p>\n<p>      <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">div<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;margin-bottom: 20px; display: flex; align-items: center;&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">label<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;margin-right: 10px; font-weight: bold; min-width: 80px;&#034;<\/span><span class=\"token operator\">&gt;<\/span>\u7528\u6237&#xff1a;<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>label<span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">input<\/span><br \/>\n          type<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;text&#034;<\/span><br \/>\n          v<span class=\"token operator\">&#8211;<\/span>model<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;state.userMsg&#034;<\/span><br \/>\n          &#064;keydown<span class=\"token punctuation\">.<\/span>enter<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;sendMessage&#034;<\/span><br \/>\n          placeholder<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\u8f93\u5165\u6d88\u606f\u540e\u6309\u56de\u8f66\u53d1\u9001&#034;<\/span><br \/>\n          <span class=\"token punctuation\">:<\/span>disabled<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;!state.isConnected || state.isConnecting&#034;<\/span><br \/>\n          style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;padding: 10px; border: 1px solid #ddd; border-radius: 4px; flex: 1;&#034;<\/span><br \/>\n        <span class=\"token operator\">\/<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">label<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;margin-right: 10px; font-weight: bold; min-width: 80px;&#034;<\/span><span class=\"token operator\">&gt;<\/span>\u6d88\u606f\u5185\u5bb9&#xff1a;<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>label<span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">input<\/span><br \/>\n          type<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;text&#034;<\/span><br \/>\n          v<span class=\"token operator\">&#8211;<\/span>model<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;state.contentMsg&#034;<\/span><br \/>\n          &#064;keydown<span class=\"token punctuation\">.<\/span>enter<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;sendMessage&#034;<\/span><br \/>\n          placeholder<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\u8f93\u5165\u6d88\u606f\u540e\u6309\u56de\u8f66\u53d1\u9001&#034;<\/span><br \/>\n          <span class=\"token punctuation\">:<\/span>disabled<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;!state.isConnected || state.isConnecting&#034;<\/span><br \/>\n          style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;padding: 10px; border: 1px solid #ddd; border-radius: 4px; flex: 1;&#034;<\/span><br \/>\n        <span class=\"token operator\">\/<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n      <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><\/p>\n<p>      <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">div<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;margin-bottom: 20px; background: #f8f9fa; padding: 15px; border-radius: 4px;&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">div<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;display: flex; margin-bottom: 10px;&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n          <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">label<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;margin-right: 10px; font-weight: bold; min-width: 80px;&#034;<\/span><span class=\"token operator\">&gt;<\/span>\u670d\u52a1\u5668&#xff1a;<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>label<span class=\"token operator\">&gt;<\/span><br \/>\n          <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">input<\/span><br \/>\n            type<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;text&#034;<\/span><br \/>\n            v<span class=\"token operator\">&#8211;<\/span>model<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;state.serverUrl&#034;<\/span><br \/>\n            placeholder<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\u8f93\u5165 SignalR Hub URL&#034;<\/span><br \/>\n            style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;padding: 8px; border: 1px solid #ddd; border-radius: 4px; flex: 1;&#034;<\/span><br \/>\n          <span class=\"token operator\">\/<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">button<\/span><br \/>\n          &#064;click<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;reconnect&#034;<\/span><br \/>\n          style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;padding: 8px 15px; background: #3498db; color: white; border: none; border-radius: 4px; cursor: pointer;&#034;<\/span><br \/>\n        <span class=\"token operator\">&gt;<\/span><br \/>\n          <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">{<\/span> state<span class=\"token punctuation\">.<\/span>isConnected <span class=\"token punctuation\">?<\/span> &#039;\u91cd\u65b0\u8fde\u63a5&#039; <span class=\"token punctuation\">:<\/span> &#039;\u8fde\u63a5&#039; <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>button<span class=\"token operator\">&gt;<\/span><br \/>\n      <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><\/p>\n<p>      <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">div<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;border: 1px solid #e0e0e0; border-radius: 4px; overflow: hidden; margin-bottom: 20px;&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">div<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;background: #f0f0f0; padding: 10px; font-weight: bold;&#034;<\/span><span class=\"token operator\">&gt;<\/span>\u6d88\u606f\u8bb0\u5f55<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">div<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;max-height: 300px; overflow-y: auto; padding: 10px; background: white;&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n          <span class=\"token operator\">&lt;<\/span>div v<span class=\"token operator\">&#8211;<\/span><span class=\"token keyword\">for<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;(msg, index) in state.messages&#034;<\/span> <span class=\"token punctuation\">:<\/span>key<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;index&#034;<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;padding: 8px 0; border-bottom: 1px solid #f5f5f5;&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n             <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">{<\/span> msg <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span><br \/>\n          <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n           <span class=\"token operator\">&lt;<\/span>div v<span class=\"token operator\">&#8211;<\/span><span class=\"token keyword\">if<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;state.messages.length &#061;&#061;&#061; 0&#034;<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;text-align: center; color: #999; padding: 20px;&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n            \u6682\u65e0\u6d88\u606f<br \/>\n          <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n      <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><\/p>\n<p>      <span class=\"token operator\">&lt;<\/span>div <span class=\"token punctuation\">:<\/span>style<span class=\"token operator\">&#061;<\/span>&#034;<span class=\"token punctuation\">{<\/span><br \/>\n        padding<span class=\"token punctuation\">:<\/span> &#039;12px&#039;<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">borderRadius<\/span><span class=\"token punctuation\">:<\/span> &#039;4px&#039;<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">marginBottom<\/span><span class=\"token punctuation\">:<\/span> &#039;15px&#039;<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">backgroundColor<\/span><span class=\"token punctuation\">:<\/span> state<span class=\"token punctuation\">.<\/span>connectionStatus<span class=\"token punctuation\">.<\/span><span class=\"token function\">includes<\/span><span class=\"token punctuation\">(<\/span>&#039;\u5931\u8d25&#039;<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">?<\/span> &#039;#ffebee&#039; <span class=\"token punctuation\">:<\/span><br \/>\n                        state<span class=\"token punctuation\">.<\/span>connectionStatus<span class=\"token punctuation\">.<\/span><span class=\"token function\">includes<\/span><span class=\"token punctuation\">(<\/span>&#039;\u8fde\u63a5&#039;<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">?<\/span> &#039;#e8f5e9&#039; <span class=\"token punctuation\">:<\/span> &#039;#e3f2fd&#039;<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">color<\/span><span class=\"token punctuation\">:<\/span> state<span class=\"token punctuation\">.<\/span>connectionStatus<span class=\"token punctuation\">.<\/span><span class=\"token function\">includes<\/span><span class=\"token punctuation\">(<\/span>&#039;\u5931\u8d25&#039;<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">?<\/span> &#039;#b71c1c&#039; <span class=\"token punctuation\">:<\/span><br \/>\n               state<span class=\"token punctuation\">.<\/span>connectionStatus<span class=\"token punctuation\">.<\/span><span class=\"token function\">includes<\/span><span class=\"token punctuation\">(<\/span>&#039;\u8fde\u63a5&#039;<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">?<\/span> &#039;#1b5e20&#039; <span class=\"token punctuation\">:<\/span> &#039;#0d47a1&#039;<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">border<\/span><span class=\"token punctuation\">:<\/span> state<span class=\"token punctuation\">.<\/span>connectionStatus<span class=\"token punctuation\">.<\/span><span class=\"token function\">includes<\/span><span class=\"token punctuation\">(<\/span>&#039;\u5931\u8d25&#039;<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">?<\/span> &#039;1px solid #ffcdd2&#039; <span class=\"token punctuation\">:<\/span> &#039;none&#039;<br \/>\n      <span class=\"token punctuation\">}<\/span>&#034;<span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">div<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;font-weight: bold; margin-bottom: 5px;&#034;<\/span><span class=\"token operator\">&gt;<\/span>\u8fde\u63a5\u72b6\u6001<span class=\"token punctuation\">:<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span>div<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">{<\/span> state<span class=\"token punctuation\">.<\/span>connectionStatus <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span>div v<span class=\"token operator\">&#8211;<\/span><span class=\"token keyword\">if<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;state.errorDetails&#034;<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;margin-top: 10px; font-size: 0.9em; color: #b71c1c;&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n          <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">div<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;font-weight: bold;&#034;<\/span><span class=\"token operator\">&gt;<\/span>\u9519\u8bef\u8be6\u60c5<span class=\"token punctuation\">:<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n          <span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">div<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;word-break: break-all;&#034;<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">{<\/span> state<span class=\"token punctuation\">.<\/span>errorDetails <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n      <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n  <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/p>\n<p>  <span class=\"token operator\">&lt;<\/span>script<span class=\"token operator\">&gt;<\/span><br \/>\n  import <span class=\"token punctuation\">{<\/span> reactive<span class=\"token punctuation\">,<\/span> onMounted<span class=\"token punctuation\">,<\/span> onUnmounted <span class=\"token punctuation\">}<\/span> from &#039;vue&#039;<span class=\"token punctuation\">;<\/span><br \/>\n  import <span class=\"token operator\">*<\/span> <span class=\"token keyword\">as<\/span> <span class=\"token class-name\">signalR<\/span> from &#039;&#064;microsoft<span class=\"token operator\">\/<\/span>signalr&#039;<span class=\"token punctuation\">;<\/span><\/p>\n<p>  export <span class=\"token keyword\">default<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">setup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">const<\/span> state <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">reactive<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n        userMsg<span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">contentMsg<\/span><span class=\"token punctuation\">:<\/span><span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">messages<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">connectionStatus<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;\u6b63\u5728\u521d\u59cb\u5316&#8230;&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">isConnected<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">isConnecting<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">serverUrl<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;https:\/\/localhost:7183\/Hubs\/MyHubService&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">errorDetails<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">connection<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token named-parameter punctuation\">retryCount<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">0<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token keyword\">const<\/span> sendMessage <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>state<span class=\"token punctuation\">.<\/span>userMsg<span class=\"token punctuation\">.<\/span><span class=\"token function\">trim<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>state<span class=\"token punctuation\">.<\/span>isConnected <span class=\"token operator\">||<\/span> <span class=\"token operator\">!<\/span>state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n          state<span class=\"token punctuation\">.<\/span>connectionStatus <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u8fde\u63a5\u5c1a\u672a\u5efa\u7acb&#xff0c;\u65e0\u6cd5\u53d1\u9001\u6d88\u606f&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5c1d\u8bd5\u591a\u79cd\u53ef\u80fd\u7684\u670d\u52a1\u7aef\u65b9\u6cd5\u540d<\/span><br \/>\n        <span class=\"token keyword\">const<\/span> possibleMethods <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><br \/>\n          <span class=\"token string\">&#034;SendMessage&#034;<\/span><span class=\"token punctuation\">,<\/span>          <span class=\"token comment\">\/\/ \u6807\u51c6\u547d\u540d<\/span><br \/>\n          <span class=\"token string\">&#034;SendMessageAsync&#034;<\/span><span class=\"token punctuation\">,<\/span>     <span class=\"token comment\">\/\/ Async\u540e\u7f00\u547d\u540d<\/span><br \/>\n          <span class=\"token string\">&#034;BroadcastMessage&#034;<\/span><span class=\"token punctuation\">,<\/span>     <span class=\"token comment\">\/\/ \u5176\u4ed6\u53ef\u80fd\u547d\u540d<\/span><br \/>\n          <span class=\"token string\">&#034;SendToAll&#034;<\/span><span class=\"token punctuation\">,<\/span>            <span class=\"token comment\">\/\/ \u53e6\u4e00\u79cd\u5e38\u89c1\u547d\u540d<\/span><br \/>\n          <span class=\"token string\">&#034;PublishMessage&#034;<\/span>        <span class=\"token comment\">\/\/ \u5907\u7528\u547d\u540d<\/span><br \/>\n        <span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">let<\/span> lastError <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u4f9d\u6b21\u5c1d\u8bd5\u6240\u6709\u53ef\u80fd\u7684\u65b9\u6cd5\u540d<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> method <span class=\"token class-name\">of<\/span> possibleMethods<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n          <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">await<\/span> state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>method<span class=\"token punctuation\">,<\/span> state<span class=\"token punctuation\">.<\/span>userMsg<span class=\"token punctuation\">,<\/span>state<span class=\"token punctuation\">.<\/span>contentMsg<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>userMsg <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>contentMsg<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6210\u529f\u53d1\u9001\u5219\u9000\u51fa<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            lastError <span class=\"token operator\">&#061;<\/span> error<span class=\"token punctuation\">;<\/span><br \/>\n            console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>&#096;\u5c1d\u8bd5\u8c03\u7528 $<span class=\"token punctuation\">{<\/span>method<span class=\"token punctuation\">}<\/span> \u5931\u8d25<span class=\"token punctuation\">:<\/span>&#096;<span class=\"token punctuation\">,<\/span> error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6240\u6709\u65b9\u6cd5\u90fd\u5931\u8d25<\/span><br \/>\n        state<span class=\"token punctuation\">.<\/span>connectionStatus <span class=\"token operator\">&#061;<\/span> &#096;\u53d1\u9001\u5931\u8d25<span class=\"token punctuation\">:<\/span> \u672a\u627e\u5230\u670d\u52a1\u7aef\u65b9\u6cd5&#096;<span class=\"token punctuation\">;<\/span><br \/>\n        state<span class=\"token punctuation\">.<\/span>errorDetails <span class=\"token operator\">&#061;<\/span> &#096;\u5c1d\u8bd5\u7684\u65b9\u6cd5<span class=\"token punctuation\">:<\/span> $<span class=\"token punctuation\">{<\/span>possibleMethods<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;, &#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span>\\\\n\u9519\u8bef<span class=\"token punctuation\">:<\/span> $<span class=\"token punctuation\">{<\/span>lastError<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">}<\/span>&#096;<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>connectionStatus <span class=\"token operator\">&#061;<\/span> &#096;\u53d1\u9001\u5931\u8d25<span class=\"token punctuation\">:<\/span> $<span class=\"token punctuation\">{<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">}<\/span>&#096;<span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>errorDetails <span class=\"token operator\">&#061;<\/span> error<span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token keyword\">const<\/span> initSignalRConnection <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        state<span class=\"token punctuation\">.<\/span>isConnecting <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        state<span class=\"token punctuation\">.<\/span>connectionStatus <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u6b63\u5728\u8fde\u63a5&#8230;&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        state<span class=\"token punctuation\">.<\/span>errorDetails <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n          <span class=\"token comment\">\/\/ \u6e05\u7406\u73b0\u6709\u8fde\u63a5<\/span><br \/>\n          <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">await<\/span> state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">.<\/span><span class=\"token function\">stop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>connection <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span><\/p>\n<p>          <span class=\"token comment\">\/\/ \u521b\u5efa\u65b0\u8fde\u63a5<\/span><br \/>\n          state<span class=\"token punctuation\">.<\/span>connection <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">signalR<span class=\"token punctuation\">.<\/span>HubConnectionBuilder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">withUrl<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">.<\/span>serverUrl<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n              skipNegotiation<span class=\"token punctuation\">:<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u5c1d\u8bd5\u8df3\u8fc7\u534f\u5546\u6b65\u9aa4<\/span><br \/>\n              transport<span class=\"token punctuation\">:<\/span> signalR<span class=\"token punctuation\">.<\/span>HttpTransportType<span class=\"token punctuation\">.<\/span>WebSockets <span class=\"token comment\">\/\/ \u5f3a\u5236\u4f7f\u7528 WebSockets<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">withAutomaticReconnect<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n              nextRetryDelayInMilliseconds<span class=\"token punctuation\">:<\/span> retryContext <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                state<span class=\"token punctuation\">.<\/span>retryCount <span class=\"token operator\">&#061;<\/span> retryContext<span class=\"token punctuation\">.<\/span>previousRetryCount <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> Math<span class=\"token punctuation\">.<\/span><span class=\"token function\">min<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span> <span class=\"token operator\">*<\/span> Math<span class=\"token punctuation\">.<\/span><span class=\"token function\">pow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> state<span class=\"token punctuation\">.<\/span>retryCount<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">30000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n              <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">configureLogging<\/span><span class=\"token punctuation\">(<\/span>signalR<span class=\"token punctuation\">.<\/span>LogLevel<span class=\"token punctuation\">.<\/span>Debug<span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u542f\u7528\u8be6\u7ec6\u8c03\u8bd5\u65e5\u5fd7<\/span><br \/>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>          <span class=\"token comment\">\/\/ \u6d88\u606f\u63a5\u6536\u5904\u7406<\/span><br \/>\n          state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">on<\/span><span class=\"token punctuation\">(<\/span>&#039;ReceiveMessage&#039;<span class=\"token punctuation\">,<\/span> rcvMsg <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>messages<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>rcvMsg<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>          state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">on<\/span><span class=\"token punctuation\">(<\/span>&#039;ReceivePubMsg&#039;<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span>rcvMsg<span class=\"token punctuation\">,<\/span>rcvContent<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>messages<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>rcvMsg<span class=\"token punctuation\">,<\/span>rcvContent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>          <span class=\"token comment\">\/\/ \u8fde\u63a5\u72b6\u6001\u53d8\u5316<\/span><br \/>\n          state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">.<\/span><span class=\"token function\">onreconnecting<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>isConnected <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>isConnecting <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>connectionStatus <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u8fde\u63a5\u4e22\u5931&#xff0c;\u6b63\u5728\u91cd\u8fde&#8230;&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>          state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">.<\/span><span class=\"token function\">onreconnected<\/span><span class=\"token punctuation\">(<\/span>connectionId <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>isConnected <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>isConnecting <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>retryCount <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>connectionStatus <span class=\"token operator\">&#061;<\/span> &#096;\u5df2\u91cd\u65b0\u8fde\u63a5 <span class=\"token punctuation\">(<\/span><span class=\"token named-parameter punctuation\">ID<\/span><span class=\"token punctuation\">:<\/span> $<span class=\"token punctuation\">{<\/span>connectionId<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>&#096;<span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>          state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">.<\/span><span class=\"token function\">onclose<\/span><span class=\"token punctuation\">(<\/span>error <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>isConnected <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>isConnecting <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>connectionStatus <span class=\"token operator\">&#061;<\/span> error<br 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punctuation\">{<\/span><br \/>\n          console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;SignalR \u8fde\u63a5\u5931\u8d25:&#034;<\/span><span class=\"token punctuation\">,<\/span> error<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          state<span class=\"token punctuation\">.<\/span>isConnected <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          state<span class=\"token punctuation\">.<\/span>isConnecting <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          state<span class=\"token punctuation\">.<\/span>connectionStatus <span class=\"token operator\">&#061;<\/span> &#096;\u8fde\u63a5\u5931\u8d25<span class=\"token punctuation\">:<\/span> $<span class=\"token punctuation\">{<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">}<\/span>&#096;<span class=\"token punctuation\">;<\/span><br \/>\n          state<span class=\"token punctuation\">.<\/span>errorDetails <span class=\"token operator\">&#061;<\/span> error<span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>          <span class=\"token comment\">\/\/ \u63d0\u4f9b\u8be6\u7ec6\u7684\u9519\u8bef\u8bca\u65ad<\/span><br \/>\n          <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">.<\/span><span class=\"token function\">includes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Failed to fetch&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            state<span class=\"token punctuation\">.<\/span>errorDetails <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string\">&#034;\\\\n\\\\n\u53ef\u80fd\u7684\u539f\u56e0&#xff1a;\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n              <span class=\"token string\">&#034;1. CORS \u95ee\u9898 &#8211; \u786e\u4fdd\u670d\u52a1\u5668\u5df2\u542f\u7528 CORS\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n              <span class=\"token string\">&#034;2. URL \u9519\u8bef &#8211; \u68c0\u67e5\u670d\u52a1\u5668\u5730\u5740\u662f\u5426\u6b63\u786e\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n              <span class=\"token string\">&#034;3. \u8bc1\u4e66\u95ee\u9898 &#8211; \u5c1d\u8bd5\u8bbf\u95ee\u670d\u52a1\u5668URL\u67e5\u770b\u8bc1\u4e66\u662f\u5426\u6709\u6548\\\\n&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n              <span class=\"token string\">&#034;4. \u670d\u52a1\u5668\u672a\u8fd0\u884c &#8211; \u786e\u4fdd\u540e\u7aef\u670d\u52a1\u6b63\u5728\u8fd0\u884c&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token keyword\">const<\/span> reconnect <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> <span class=\"token function\">initSignalRConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token function\">onMounted<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">initSignalRConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token function\">onUnmounted<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n          state<span class=\"token punctuation\">.<\/span>connection<span class=\"token punctuation\">.<\/span><span class=\"token function\">stop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span> state<span class=\"token punctuation\">,<\/span> sendMessage<span class=\"token punctuation\">,<\/span> reconnect <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>script<span class=\"token operator\">&gt;<\/span><\/p>\n<p>  <span class=\"token operator\">&lt;<\/span>style<span class=\"token operator\">&gt;<\/span><br \/>\n  body <span class=\"token punctuation\">{<\/span><br \/>\n    font<span class=\"token operator\">&#8211;<\/span>family<span class=\"token punctuation\">:<\/span> &#039;Segoe UI&#039;<span class=\"token punctuation\">,<\/span> Tahoma<span class=\"token punctuation\">,<\/span> Geneva<span class=\"token punctuation\">,<\/span> Verdana<span class=\"token punctuation\">,<\/span> sans<span class=\"token operator\">&#8211;<\/span>serif<span class=\"token punctuation\">;<\/span><br \/>\n    background<span class=\"token operator\">&#8211;<\/span>color<span class=\"token punctuation\">:<\/span> #f5f7fa<span class=\"token punctuation\">;<\/span><br \/>\n    margin<span class=\"token punctuation\">:<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    padding<span class=\"token punctuation\">:<\/span> 20px<span class=\"token punctuation\">;<\/span><br \/>\n    color<span class=\"token punctuation\">:<\/span> #<span class=\"token number\">333<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  input <span class=\"token punctuation\">{<\/span><br \/>\n    font<span class=\"token operator\">&#8211;<\/span>size<span class=\"token punctuation\">:<\/span> 1rem<span class=\"token punctuation\">;<\/span><br \/>\n    transition<span class=\"token punctuation\">:<\/span> border<span class=\"token operator\">&#8211;<\/span>color <span class=\"token number\">0<\/span><span class=\"token punctuation\">.<\/span>3s<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  input<span class=\"token punctuation\">:<\/span>focus <span class=\"token punctuation\">{<\/span><br \/>\n    outline<span class=\"token punctuation\">:<\/span> none<span class=\"token punctuation\">;<\/span><br \/>\n    border<span class=\"token operator\">&#8211;<\/span>color<span class=\"token punctuation\">:<\/span> #3498db<span class=\"token punctuation\">;<\/span><br \/>\n    box<span class=\"token operator\">&#8211;<\/span>shadow<span class=\"token punctuation\">:<\/span> <span class=\"token number\">0<\/span> <span class=\"token number\">0<\/span> <span class=\"token number\">0<\/span> 2px <span class=\"token function\">rgba<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">52<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">152<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">219<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0.2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  button <span class=\"token punctuation\">{<\/span><br \/>\n    font<span class=\"token operator\">&#8211;<\/span>weight<span class=\"token punctuation\">:<\/span> <span class=\"token number\">500<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    transition<span class=\"token punctuation\">:<\/span> background<span class=\"token operator\">&#8211;<\/span>color <span class=\"token number\">0<\/span><span class=\"token punctuation\">.<\/span>3s<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  button<span class=\"token punctuation\">:<\/span>hover <span class=\"token punctuation\">{<\/span><br \/>\n    background<span class=\"token operator\">&#8211;<\/span>color<span class=\"token punctuation\">:<\/span> #2980b9 <span class=\"token operator\">!<\/span>important<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  button<span class=\"token punctuation\">:<\/span>disabled <span class=\"token punctuation\">{<\/span><br \/>\n    background<span class=\"token operator\">&#8211;<\/span>color<span class=\"token punctuation\">:<\/span> #bdc3c7 <span class=\"token operator\">!<\/span>important<span class=\"token punctuation\">;<\/span><br \/>\n    cursor<span class=\"token punctuation\">:<\/span> <span class=\"token keyword\">not<\/span><span class=\"token operator\">&#8211;<\/span>allowed<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>style<span class=\"token operator\">&gt;<\/span>\n <\/li>\n<h3>7.\u8fd0\u884c\u4f7f\u7528<\/h3>\n<li>\u5ba2\u6237\u7aef\u63a8\u9001\u6d88\u606f\n<ul>\n<li>\u8bbf\u95ee\u524d\u7aef\u5730\u5740&#xff1a; http:\/\/localhost:5173\/ &#xff08;\u6253\u5f00\u591a\u4e2a\u6d4f\u89c8\u5668\u7a97\u53e3\u6d4b\u8bd5\u6d88\u606f\u5e7f\u64ad&#xff09;<\/li>\n<li>\u8f93\u5165\u6d88\u606f&#xff0c;\u56de\u8f66 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250619233205-68549df57f8dc.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250619233207-68549df7a4914.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/li>\n<\/ul>\n<\/li>\n<li>\u670d\u52a1\u7aef\u63a8\u9001&#xff08;\u591a\u4e2a\u5ba2\u6237\u7aef\u90fd\u53ef\u63a5\u6536\u5230\u670d\u52a1\u7aef\u63a8\u9001\u7684\u6d88\u606f&#xff09; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250619233210-68549dfa000dc.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/li>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250619233211-68549dfbb89de.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250619233213-68549dfdcca77.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" 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punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">AllowCredentials<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token range operator\">..<\/span><span class=\"token range operator\">..<\/span><\/p>\n<p>app<span class=\"token punctuation\">.<\/span><span class=\"token function\">UseCors<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">UseHttpsRedirection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token range operator\">..<\/span><span class=\"token range operator\">..<\/span><span class=\"token range operator\">..<\/span>\n <\/li>\n<li>\u914d\u7f6e\u8def\u7531 \u5728 Program.cs \u6dfb\u52a0&#xff1a;app<span class=\"token punctuation\">.<\/span><span class=\"token generic-method\"><span class=\"token function\">MapHub<\/span><span class=\"token generic class-name\"><span class=\"token punctuation\">&lt;<\/span>MyHubService<span class=\"token punctuation\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/Hubs\/MyHubService&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ SignalR \u7ec8\u7ed3\u70b9<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">MapControllers<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n 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