{"id":54974,"date":"2025-08-13T14:39:58","date_gmt":"2025-08-13T06:39:58","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/54974.html"},"modified":"2025-08-13T14:39:58","modified_gmt":"2025-08-13T06:39:58","slug":"c-%e5%bc%82%e5%b8%b8%e5%a4%84%e7%90%86%e4%b8%8e%e6%8b%a6%e6%88%aa%e5%85%a8%e6%94%bb%e7%95%a5%ef%bc%9atry-catch-finally%e3%80%81using%e3%80%81asp-net-core-%e4%b8%ad%e9%97%b4%e4%bb%b6%e4%b8%8e%e8%bf%87","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/54974.html","title":{"rendered":"C# \u5f02\u5e38\u5904\u7406\u4e0e\u62e6\u622a\u5168\u653b\u7565\uff1atry\/catch\/finally\u3001using\u3001ASP.NET Core \u4e2d\u95f4\u4ef6\u4e0e\u8fc7\u6ee4\u5668\u4e00\u7f51\u6253\u5c3d\uff08\u542b\u5b8c\u6574\u793a\u4f8b\uff09"},"content":{"rendered":"

C# \u5f02\u5e38\u5904\u7406\u4e0e\u62e6\u622a\u5168\u653b\u7565：try\/catch\/finally\u3001using\u3001ASP.NET Core \u4e2d\u95f4\u4ef6\u4e0e\u8fc7\u6ee4\u5668\u4e00\u7f51\u6253\u5c3d（\u542b\u5b8c\u6574\u793a\u4f8b）<\/h2>\n

\u9762\u5411：.NET \u540e\u7aef\/\u5168\u6808\u5de5\u7a0b\u5e08\u3001API \u5f00\u53d1\u8005\u3001\u9700\u8981\u505a\u7edf\u4e00\u5f02\u5e38\u5904\u7406\u4e0e\u65e5\u5fd7\u8ffd\u8e2a\u7684\u540c\u5b66\u3002 \u4eae\u70b9：\u7cfb\u7edf\u5316\u8bb2\u6e05\u695a try\/catch\/finally \u7684\u6267\u884c\u7ec6\u8282\u4e0e\u5751\u3001using\/await using \u7684\u6b63\u786e\u59ff\u52bf\u3001ASP.NET Core \u4e2d\u95f4\u4ef6\u4e0e\u8fc7\u6ee4\u5668\u7684\u201c\u5168\u94fe\u8def\u62e6\u622a\u201d，\u9001\u4e0a\u53ef\u590d\u5236\u843d\u5730\u4ee3\u7801\u4e0e\u6700\u4f73\u5b9e\u8df5\u6e05\u5355\u3002<\/p>\n

\n

\u76ee\u5f55<\/h3>\n
  • \u5f02\u5e38\u6a21\u578b\u4e0e\u57fa\u672c\u539f\u5219<\/li>\n
  • try\/catch\/finally：\u6267\u884c\u987a\u5e8f\u3001\u9690\u85cf\u9677\u9631\u4e0e\u6b63\u786e\u7528\u6cd5<\/li>\n
  • using \/ await using：\u8d44\u6e90\u91ca\u653e\u7684\u7ec8\u6781\u6b66\u5668<\/li>\n
  • ASP.NET Core \u4e2d\u95f4\u4ef6\u62e6\u622a：\u5168\u5c40\u5f02\u5e38\u4e0e\u65e5\u5fd7\u7edf\u4e00\u51fa\u53e3<\/li>\n
  • MVC \u8fc7\u6ee4\u5668\u62e6\u622a：\u52a8\u4f5c\/\u7ed3\u679c\/\u5f02\u5e38\u7684\u7cbe\u7ec6\u5316\u5904\u7406<\/li>\n
  • （\u53ef\u9009）Minimal API \u7684 Endpoint Filters<\/li>\n
  • \u65e5\u5fd7\u4e0e\u8ffd\u8e2a：\u7ed3\u6784\u5316\u65e5\u5fd7 + \u5173\u8054ID(CorrelationId)<\/li>\n
  • \u5e38\u89c1\u53cd\u6a21\u5f0f\u4e0e\u6700\u4f73\u5b9e\u8df5\u6e05\u5355<\/li>\n
  • \u5b8c\u6574\u4ee3\u7801\u6e05\u5355\u4e0e\u9879\u76ee\u9aa8\u67b6<\/li>\n
    \n

    \u5f02\u5e38\u6a21\u578b\u4e0e\u57fa\u672c\u539f\u5219<\/h3>\n

    .NET \u4e2d\u5f02\u5e38\u7684\u672c\u8d28<\/h4>\n
      \n
    • \u5f02\u5e38(Exception)\u662f\u4e0d\u53ef\u9884\u671f\u6216\u4e0d\u5e94\u5728\u6b63\u5e38\u6d41\u7a0b\u4e2d\u51fa\u73b0\u7684\u9519\u8bef\u3002<\/li>\n
    • \u5f02\u5e38\u662f\u6808\u5c55\u5f00(stack unwinding)\u8fc7\u7a0b\u4e2d\u88ab\u629b\u51fa\u5e76\u4e00\u8def\u5411\u5916\u4f20\u64ad，\u76f4\u5230\u88ab\u67d0\u4e2a catch \u6355\u83b7；\u82e5\u6ca1\u4eba\u6355\u83b7，\u8fdb\u7a0b\/\u8bf7\u6c42\u7ec8\u7ed3\u3002<\/li>\n<\/ul>\n

      \u57fa\u672c\u539f\u5219<\/h4>\n
    • \u5c31\u8fd1\u5904\u7406\u3001\u96c6\u4e2d\u515c\u5e95：\u4e1a\u52a1\u5c42\u5c31\u8fd1\u5904\u7406\u660e\u786e\u53ef\u6062\u590d\u7684\u5f02\u5e38；\u6846\u67b6\u5c42\u7528\u4e2d\u95f4\u4ef6\u505a\u5168\u5c40\u515c\u5e95\u3002<\/li>\n
    • \u4e0d\u8981\u541e\u5f02\u5e38：\u6355\u83b7\u540e\u5fc5\u987b\u8bb0\u5f55\u3001\u8f6c\u6362\u6216\u91cd\u629b，\u907f\u514d\u201c\u6084\u65e0\u58f0\u606f\u201d\u3002<\/li>\n
    • \u629b\u51fa\u8bed\u4e49\u5316\u5f02\u5e38：\u7528\u81ea\u5b9a\u4e49\u4e1a\u52a1\u5f02\u5e38\u6216\u6807\u51c6\u5f02\u5e38\u65cf，\u643a\u5e26\u4e0a\u4e0b\u6587\u4fe1\u606f\u3002<\/li>\n
    • \u4e0d\u8981\u628a\u5f02\u5e38\u5f53\u5206\u652f\u63a7\u5236：\u5f02\u5e38\u53ea\u7528\u4e8e\u5f02\u5e38\u8def\u5f84\u3002<\/li>\n
      \n

      try\/catch\/finally：\u6267\u884c\u987a\u5e8f\u3001\u9690\u85cf\u9677\u9631\u4e0e\u6b63\u786e\u7528\u6cd5<\/h3>\n

      \u6267\u884c\u987a\u5e8f<\/h4>\n
        \n
      • \u6b63\u5e38：try \u2192 finally<\/li>\n
      • \u6709\u5f02\u5e38\u5e76\u88ab\u6355\u83b7：try \u2192 catch \u2192 finally<\/li>\n
      • \u6709\u5f02\u5e38\u4f46\u672a\u88ab\u6355\u83b7：try \u2192 finally \u2192 \u5f02\u5e38\u7ee7\u7eed\u5411\u5916\u629b<\/li>\n<\/ul>\n

        \u5173\u952e\u7ec6\u8282<\/h4>\n
          \n
        • finally \u4e00\u5b9a\u6267\u884c（\u8fdb\u7a0b\u7ec8\u6b62\/\u7ebf\u7a0b\u4e2d\u6b62\u7b49\u6781\u7aef\u60c5\u51b5\u9664\u5916）\u3002<\/li>\n
        • \u4e0d\u8981\u5728 finally \u91cc\u518d\u629b\u5f02\u5e38：\u4f1a\u8986\u76d6\u539f\u59cb\u5f02\u5e38，\u5bfc\u81f4\u6839\u56e0\u4e22\u5931\u3002<\/li>\n
        • \u91cd\u65b0\u629b\u51fa\u7528 throw; \u800c\u4e0d\u662f throw ex;，\u5426\u5219\u4f1a\u91cd\u7f6e\u5806\u6808\u3002<\/li>\n<\/ul>\n
          \u793a\u4f8b：finally \u8986\u76d6\u539f\u5f02\u5e38（\u53cd\u4f8b）<\/h5>\n

          try<\/span>
          \n{<\/span>
          \n throw<\/span> new<\/span> InvalidOperationException<\/span>(<\/span>"\u4e1a\u52a1\u5931\u8d25：\u5e93\u5b58\u4e0d\u8db3"<\/span>)<\/span>;<\/span>
          \n}<\/span>
          \ncatch<\/span> (<\/span>Exception<\/span>)<\/span>
          \n{<\/span>
          \n \/\/ \u8bb0\u5f55\u540e\u51c6\u5907\u5f80\u5916\u629b<\/span>
          \n throw<\/span>;<\/span> \/\/ \u4fdd\u7559\u539f\u5806\u6808<\/span>
          \n}<\/span>
          \nfinally<\/span>
          \n{<\/span>
          \n \/\/ \u5343\u4e07\u522b\u8fd9\u6837！\u8fd9\u4f1a\u8986\u76d6\u4e0a\u9762\u7684\u5f02\u5e38<\/span>
          \n \/\/ throw new Exception("finally \u6e05\u7406\u5931\u8d25");<\/span>
          \n}<\/span><\/p>\n

          \u793a\u4f8b：\u786e\u4fdd\u6e05\u7406\u4e0d\u963b\u65ad（\u6bcf\u4e2a\u91ca\u653e\u52a8\u4f5c\u5355\u72ec try\/catch）<\/h5>\n

          finally<\/span>
          \n{<\/span>
          \n try<\/span> {<\/span> CloseFile<\/span>(<\/span>)<\/span>;<\/span> }<\/span> catch<\/span> (<\/span>Exception<\/span> ex)<\/span> {<\/span> _logger.<\/span>LogError<\/span>(<\/span>ex,<\/span> "\u5173\u95ed\u6587\u4ef6\u5931\u8d25"<\/span>)<\/span>;<\/span> }<\/span>
          \n try<\/span> {<\/span> CloseDb<\/span>(<\/span>)<\/span>;<\/span> }<\/span> catch<\/span> (<\/span>Exception<\/span> ex)<\/span> {<\/span> _logger.<\/span>LogError<\/span>(<\/span>ex,<\/span> "\u5173\u95ed\u6570\u636e\u5e93\u5931\u8d25"<\/span>)<\/span>;<\/span> }<\/span>
          \n try<\/span> {<\/span> CloseCache<\/span>(<\/span>)<\/span>;<\/span> }<\/span>catch<\/span> (<\/span>Exception<\/span> ex)<\/span> {<\/span> _logger.<\/span>LogError<\/span>(<\/span>ex,<\/span> "\u5173\u95ed\u7f13\u5b58\u5931\u8d25"<\/span>)<\/span>;<\/span> }<\/span>
          \n}<\/span><\/p>\n

          \u793a\u4f8b：\u4fdd\u7559\u591a\u5f02\u5e38\u4fe1\u606f（\u5fc5\u8981\u65f6\u805a\u5408）<\/h5>\n

          Exception?<\/span><\/span> origin =<\/span> null<\/span>;<\/span>
          \ntry<\/span>
          \n{<\/span>
          \n throw<\/span> new<\/span> Exception<\/span>(<\/span>"\u539f\u59cb\u5f02\u5e38"<\/span>)<\/span>;<\/span>
          \n}<\/span>
          \ncatch<\/span> (<\/span>Exception<\/span> ex)<\/span>
          \n{<\/span>
          \n origin =<\/span> ex;<\/span>
          \n}<\/span>
          \nfinally<\/span>
          \n{<\/span>
          \n try<\/span>
          \n {<\/span>
          \n throw<\/span> new<\/span> Exception<\/span>(<\/span>"finally \u5185\u53c8\u51fa\u9519"<\/span>)<\/span>;<\/span>
          \n }<\/span>
          \n catch<\/span> (<\/span>Exception<\/span> ex)<\/span>
          \n {<\/span>
          \n if<\/span> (<\/span>origin !=<\/span> null<\/span>)<\/span> throw<\/span> new<\/span> AggregateException<\/span>(<\/span>origin,<\/span> ex)<\/span>;<\/span>
          \n else<\/span> throw<\/span>;<\/span>
          \n }<\/span>
          \n}<\/span><\/p>\n

          \u793a\u4f8b：\u5f02\u6b65\u5f02\u5e38\u4e0e AggregateException<\/h5>\n

          \/\/ \u63a8\u8350\u4f7f\u7528 await（\u53ef\u76f4\u63a5\u5f97\u5230\u539f\u59cb\u5f02\u5e38）<\/span>
          \nawait<\/span> DoAsync<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

          \/\/ \u82e5\u7528 .Wait()\/Result，\u5f02\u5e38\u4f1a\u5305\u6210 AggregateException<\/span>
          \ntry<\/span>
          \n{<\/span>
          \n DoAsync<\/span>(<\/span>)<\/span>.<\/span>Wait<\/span>(<\/span>)<\/span>;<\/span>
          \n}<\/span>
          \ncatch<\/span> (<\/span>AggregateException<\/span> ae)<\/span>
          \n{<\/span>
          \n foreach<\/span> (<\/span>var<\/span><\/span> e in<\/span> ae.<\/span>Flatten<\/span>(<\/span>)<\/span>.<\/span>InnerExceptions)<\/span>
          \n Console.<\/span>WriteLine<\/span>(<\/span>e.<\/span>Message)<\/span>;<\/span>
          \n}<\/span><\/p>\n

          \n

          using \/ await using：\u8d44\u6e90\u91ca\u653e\u7684\u7ec8\u6781\u6b66\u5668<\/h3>\n

          using \u8bed\u6cd5\u7684\u4e09\u79cd\u5f62\u6001<\/h4>\n
        • \u4f20\u7edf using \u8bed\u53e5（\u4f5c\u7528\u57df\u5757）<\/li>\n

          using<\/span> (<\/span>var<\/span><\/span> conn =<\/span> new<\/span> SqlConnection<\/span>(<\/span>cs)<\/span>)<\/span>
          \n{<\/span>
          \n await<\/span> conn.<\/span>OpenAsync<\/span>(<\/span>)<\/span>;<\/span>
          \n \/\/ …<\/span>
          \n}<\/span> \/\/ \u8fd9\u91cc\u81ea\u52a8\u8c03\u7528 conn.Dispose()<\/span><\/p>\n

        • using \u58f0\u660e（C# 8+，\u66f4\u7b80\u6d01）<\/li>\n

          using<\/span> var<\/span><\/span> stream =<\/span> File.<\/span>OpenRead<\/span>(<\/span>path)<\/span>;<\/span>
          \n\/\/ …<\/span>
          \n\/\/ \u4f5c\u7528\u57df\u7ed3\u675f\u81ea\u52a8 Dispose()<\/span><\/p>\n

        • await using（IAsyncDisposable，C# 8+）<\/li>\n

          await<\/span> using<\/span> var<\/span><\/span> fs =<\/span> new<\/span> FileStream<\/span>(<\/span>path,<\/span> FileMode.<\/span>Open,<\/span> FileAccess.<\/span>Read,<\/span> FileShare.<\/span>Read,<\/span> 4096<\/span>,<\/span> FileOptions.<\/span>Asynchronous)<\/span>;<\/span>
          \n\/\/ \u4f5c\u7528\u57df\u7ed3\u675f\u81ea\u52a8\u8c03\u7528 fs.DisposeAsync()<\/span><\/p>\n

          \u6b63\u786e\u5b9e\u73b0 IDisposable \u6a21\u5f0f（\u542b\u975e\u6258\u7ba1\u8d44\u6e90）<\/h4>\n

          public<\/span> sealed<\/span> class<\/span> SafeNativeHandle<\/span> :<\/span> SafeHandle<\/span><\/span>
          \n{<\/span>
          \n public<\/span> SafeNativeHandle<\/span>(<\/span>)<\/span> :<\/span> base<\/span>(<\/span>IntPtr.<\/span>Zero,<\/span> true<\/span>)<\/span> {<\/span> }<\/span>
          \n public<\/span> override<\/span> bool<\/span><\/span> IsInvalid =><\/span> handle ==<\/span> IntPtr.<\/span>Zero;<\/span>
          \n protected<\/span> override<\/span> bool<\/span><\/span> ReleaseHandle<\/span>(<\/span>)<\/span>
          \n {<\/span>
          \n return<\/span> NativeCloseHandle<\/span>(<\/span>handle)<\/span>;<\/span> \/\/ P\/Invoke \u5173\u95ed\u53e5\u67c4<\/span>
          \n }<\/span>
          \n}<\/span><\/p>\n

          public<\/span> class<\/span> MyResource<\/span> :<\/span> IDisposable<\/span><\/span>
          \n{<\/span>
          \n private<\/span> bool<\/span><\/span> _disposed;<\/span>
          \n private<\/span> readonly<\/span> SafeNativeHandle<\/span> _handle =<\/span> new<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

          public<\/span> void<\/span><\/span> Use<\/span>(<\/span>)<\/span>
          \n {<\/span>
          \n if<\/span> (<\/span>_disposed)<\/span> throw<\/span> new<\/span> ObjectDisposedException<\/span>(<\/span>nameof<\/span>(<\/span>MyResource)<\/span>)<\/span>;<\/span>
          \n \/\/ \u4f7f\u7528\u53e5\u67c4…<\/span>
          \n }<\/span><\/p>\n

          public<\/span> void<\/span><\/span> Dispose<\/span>(<\/span>)<\/span>
          \n {<\/span>
          \n if<\/span> (<\/span>_disposed)<\/span> return<\/span>;<\/span>
          \n _handle?.<\/span>Dispose<\/span>(<\/span>)<\/span>;<\/span>
          \n _disposed =<\/span> true<\/span>;<\/span>
          \n GC.<\/span>SuppressFinalize<\/span>(<\/span>this<\/span>)<\/span>;<\/span>
          \n }<\/span>
          \n}<\/span><\/p>\n

          \u2705 \u5efa\u8bae：\u4f18\u5148\u4f7f\u7528 using\/await using \u7ba1\u7406\u8d44\u6e90，\u628a\u201c\u91ca\u653e\u5931\u8d25\u5bfc\u81f4\u6cc4\u6f0f\u201d\u7684\u6982\u7387\u6253\u5230\u6700\u4f4e\u3002<\/p>\n

          \n

          ASP.NET Core \u4e2d\u95f4\u4ef6\u62e6\u622a：\u5168\u5c40\u5f02\u5e38\u4e0e\u65e5\u5fd7\u7edf\u4e00\u51fa\u53e3<\/h3>\n

          \u4e2d\u95f4\u4ef6（Middleware）\u4f4d\u4e8e\u6700\u5916\u5c42，\u80fd\u62e6\u622a\u6574\u4e2a\u8bf7\u6c42\u7ba1\u9053（\u9759\u6001\u6587\u4ef6\u3001MVC\u3001SignalR\u3001Minimal API\u2026）\u3002<\/p>\n

          1）\u5168\u5c40\u5f02\u5e38\/\u65e5\u5fd7\u4e2d\u95f4\u4ef6（\u751f\u4ea7\u53ef\u7528）<\/h4>\n

          RequestLoggingMiddleware.cs<\/p>\n

          public<\/span> class<\/span> RequestLoggingMiddleware<\/span>
          \n{<\/span>
          \n private<\/span> readonly<\/span> RequestDelegate<\/span> _next;<\/span>
          \n private<\/span> readonly<\/span> ILogger<<\/span>RequestLoggingMiddleware><\/span><\/span> _logger;<\/span><\/p>\n

          public<\/span> RequestLoggingMiddleware<\/span>(<\/span>RequestDelegate<\/span> next,<\/span> ILogger<<\/span>RequestLoggingMiddleware><\/span><\/span> logger)<\/span>
          \n {<\/span>
          \n _next =<\/span> next;<\/span>
          \n _logger =<\/span> logger;<\/span>
          \n }<\/span><\/p>\n

          public<\/span> async<\/span> Task<\/span> InvokeAsync<\/span>(<\/span>HttpContext<\/span> context)<\/span>
          \n {<\/span>
          \n var<\/span><\/span> sw =<\/span> System.<\/span>Diagnostics.<\/span>Stopwatch.<\/span>StartNew<\/span>(<\/span>)<\/span>;<\/span>
          \n var<\/span><\/span> path =<\/span> context.<\/span>Request.<\/span>Path;<\/span>
          \n var<\/span><\/span> method =<\/span> context.<\/span>Request.<\/span>Method;<\/span>
          \n var<\/span><\/span> traceId =<\/span> context.<\/span>TraceIdentifier;<\/span><\/p>\n

          try<\/span>
          \n {<\/span>
          \n _logger.<\/span>LogInformation<\/span>(<\/span>"REQ {TraceId} {Method} {Path}"<\/span>,<\/span> traceId,<\/span> method,<\/span> path)<\/span>;<\/span>
          \n await<\/span> _next<\/span>(<\/span>context)<\/span>;<\/span>
          \n _logger.<\/span>LogInformation<\/span>(<\/span>"RES {TraceId} {StatusCode} in {Elapsed}ms"<\/span>,<\/span> traceId,<\/span> context.<\/span>Response.<\/span>StatusCode,<\/span> sw.<\/span>ElapsedMilliseconds)<\/span>;<\/span>
          \n }<\/span>
          \n catch<\/span> (<\/span>Exception<\/span> ex)<\/span>
          \n {<\/span>
          \n _logger.<\/span>LogError<\/span>(<\/span>ex,<\/span> "UNHANDLED {TraceId} {Method} {Path}"<\/span>,<\/span> traceId,<\/span> method,<\/span> path)<\/span>;<\/span>
          \n context.<\/span>Response.<\/span>StatusCode =<\/span> StatusCodes.<\/span>Status500InternalServerError;<\/span>
          \n context.<\/span>Response.<\/span>ContentType =<\/span> "application\/json"<\/span>;<\/span><\/p>\n

          var<\/span><\/span> problem =<\/span> new<\/span> ProblemDetails<\/span>
          \n {<\/span>
          \n Title =<\/span> "\u670d\u52a1\u5668\u5f00\u5c0f\u5dee\u4e86"<\/span>,<\/span>
          \n Status =<\/span> StatusCodes.<\/span>Status500InternalServerError,<\/span>
          \n Detail =<\/span> "\u8bf7\u7a0d\u540e\u518d\u8bd5\u6216\u8054\u7cfb\u7ba1\u7406\u5458"<\/span>,<\/span>
          \n Instance =<\/span> path
          \n }<\/span>;<\/span>
          \n await<\/span> context.<\/span>Response.<\/span>WriteAsJsonAsync<\/span>(<\/span>problem)<\/span>;<\/span>
          \n }<\/span>
          \n }<\/span>
          \n}<\/span><\/p>\n

          public<\/span> static<\/span> class<\/span> RequestLoggingMiddlewareExtensions<\/span>
          \n{<\/span>
          \n public<\/span> static<\/span> IApplicationBuilder<\/span> UseRequestLogging<\/span>(<\/span>this<\/span> IApplicationBuilder<\/span> app)<\/span>
          \n =><\/span> app.<\/span>UseMiddleware<\/span><<\/span>RequestLoggingMiddleware><\/span><\/span><\/span>(<\/span>)<\/span>;<\/span>
          \n}<\/span><\/p>\n

          Program.cs（.NET 8+ \u9876\u7ea7\u8bed\u53e5）<\/p>\n

          var<\/span><\/span> builder =<\/span> WebApplication.<\/span>CreateBuilder<\/span>(<\/span>args)<\/span>;<\/span>
          \nbuilder.<\/span>Services.<\/span>AddControllers<\/span>(<\/span>)<\/span>;<\/span>
          \nvar<\/span><\/span> app =<\/span> builder.<\/span>Build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

          app.<\/span>UseRequestLogging<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u4e00\u5b9a\u653e\u5728\u7ba1\u9053\u9760\u524d\u4f4d\u7f6e<\/span>
          \napp.<\/span>MapControllers<\/span>(<\/span>)<\/span>;<\/span>
          \napp.<\/span>Run<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

          2）\u8bfb\u53d6\u8bf7\u6c42\u4f53\u4e0e\u54cd\u5e94\u4f53（\u53ef\u89c2\u6d4b\u589e\u5f3a）<\/h4>\n

          \u6ce8\u610f：\u8bfb\u53d6\u8bf7\u6c42\u4f53\u9700\u8981 EnableBuffering()，\u8bfb\u53d6\u54cd\u5e94\u4f53\u9700\u8981\u4e34\u65f6\u66ff\u6362 Response.Body\u3002<\/p>\n

          public<\/span> class<\/span> BodyCaptureMiddleware<\/span>
          \n{<\/span>
          \n private<\/span> readonly<\/span> RequestDelegate<\/span> _next;<\/span>
          \n private<\/span> readonly<\/span> ILogger<<\/span>BodyCaptureMiddleware><\/span><\/span> _logger;<\/span>
          \n public<\/span> BodyCaptureMiddleware<\/span>(<\/span>RequestDelegate<\/span> next,<\/span> ILogger<<\/span>BodyCaptureMiddleware><\/span><\/span> logger)<\/span>
          \n {<\/span> _next =<\/span> next;<\/span> _logger =<\/span> logger;<\/span> }<\/span><\/p>\n

          public<\/span> async<\/span> Task<\/span> InvokeAsync<\/span>(<\/span>HttpContext<\/span> context)<\/span>
          \n {<\/span>
          \n \/\/ \u8bf7\u6c42\u4f53<\/span>
          \n context.<\/span>Request.<\/span>EnableBuffering<\/span>(<\/span>)<\/span>;<\/span>
          \n using<\/span> (<\/span>var<\/span><\/span> reader =<\/span> new<\/span> StreamReader<\/span>(<\/span>context.<\/span>Request.<\/span>Body,<\/span> Encoding.<\/span>UTF8,<\/span> leaveOpen<\/span>:<\/span> true<\/span>)<\/span>)<\/span>
          \n {<\/span>
          \n var<\/span><\/span> body =<\/span> await<\/span> reader.<\/span>ReadToEndAsync<\/span>(<\/span>)<\/span>;<\/span>
          \n context.<\/span>Request.<\/span>Body.<\/span>Position =<\/span> 0<\/span>;<\/span> \/\/ \u5f52\u4f4d，\u4ea4\u7ed9\u540e\u7eed\u4e2d\u95f4\u4ef6\/\u6a21\u578b\u7ed1\u5b9a<\/span>
          \n _logger.<\/span>LogDebug<\/span>(<\/span>"RequestBody: {Body}"<\/span>,<\/span> body)<\/span>;<\/span>
          \n }<\/span><\/p>\n

          \/\/ \u54cd\u5e94\u4f53<\/span>
          \n var<\/span><\/span> originalBody =<\/span> context.<\/span>Response.<\/span>Body;<\/span>
          \n await<\/span> using<\/span> var<\/span><\/span> mem =<\/span> new<\/span> MemoryStream<\/span>(<\/span>)<\/span>;<\/span>
          \n context.<\/span>Response.<\/span>Body =<\/span> mem;<\/span><\/p>\n

          await<\/span> _next<\/span>(<\/span>context)<\/span>;<\/span><\/p>\n

          mem.<\/span>Position =<\/span> 0<\/span>;<\/span>
          \n var<\/span><\/span> responseText =<\/span> await<\/span> new<\/span> StreamReader<\/span>(<\/span>mem)<\/span>.<\/span>ReadToEndAsync<\/span>(<\/span>)<\/span>;<\/span>
          \n _logger.<\/span>LogDebug<\/span>(<\/span>"ResponseBody: {Body}"<\/span>,<\/span> responseText)<\/span>;<\/span>
          \n mem.<\/span>Position =<\/span> 0<\/span>;<\/span>
          \n await<\/span> mem.<\/span>CopyToAsync<\/span>(<\/span>originalBody)<\/span>;<\/span>
          \n context.<\/span>Response.<\/span>Body =<\/span> originalBody;<\/span>
          \n }<\/span>
          \n}<\/span><\/p>\n

          3）\u5b98\u65b9\u5185\u7f6e\u5f02\u5e38\u9875\/\u5904\u7406\u5668（\u5feb\u901f\u96c6\u6210）<\/h4>\n
            \n
          • \u5f00\u53d1\u73af\u5883：app.UseDeveloperExceptionPage();<\/li>\n
          • \u751f\u4ea7\u73af\u5883：app.UseExceptionHandler("\/error"); + \u4e00\u4e2a \/error \u7aef\u70b9\u7edf\u4e00\u8fd4\u56de ProblemDetails\u3002<\/li>\n<\/ul>\n
            \n

            MVC \u8fc7\u6ee4\u5668\u62e6\u622a：\u52a8\u4f5c\/\u7ed3\u679c\/\u5f02\u5e38\u7684\u7cbe\u7ec6\u5316\u5904\u7406<\/h3>\n

            \u8fc7\u6ee4\u5668(Filter)\u53ea\u4f5c\u7528\u5728 MVC \u7ba1\u9053 \u5185（Controller\/Action），\u65e0\u6cd5\u62e6\u622a MVC \u4e4b\u5916\u7684\u5f02\u5e38（\u4f8b\u5982\u5728\u8def\u7531\u524d\u5c31\u629b\u51fa）\u3002<\/p>\n

            1）Action \u6267\u884c\u65f6\u95f4\u4e0e\u6a21\u578b\u9a8c\u8bc1\u7edf\u4e00\u6821\u9a8c（ActionFilter）<\/h4>\n

            public<\/span> class<\/span> ValidateAndTimingFilter<\/span> :<\/span> IActionFilter<\/span><\/span>
            \n{<\/span>
            \n private<\/span> readonly<\/span> ILogger<<\/span>ValidateAndTimingFilter><\/span><\/span> _logger;<\/span>
            \n private<\/span> System.<\/span>Diagnostics.<\/span>Stopwatch?<\/span><\/span> _sw;<\/span>
            \n public<\/span> ValidateAndTimingFilter<\/span>(<\/span>ILogger<<\/span>ValidateAndTimingFilter><\/span><\/span> logger)<\/span> =><\/span> _logger =<\/span> logger;<\/span><\/p>\n

            public<\/span> void<\/span><\/span> OnActionExecuting<\/span>(<\/span>ActionExecutingContext<\/span> context)<\/span>
            \n {<\/span>
            \n _sw =<\/span> System.<\/span>Diagnostics.<\/span>Stopwatch.<\/span>StartNew<\/span>(<\/span>)<\/span>;<\/span>
            \n if<\/span> (<\/span>!<\/span>context.<\/span>ModelState.<\/span>IsValid)<\/span>
            \n {<\/span>
            \n var<\/span><\/span> problem =<\/span> new<\/span> ValidationProblemDetails<\/span>(<\/span>context.<\/span>ModelState)<\/span>
            \n {<\/span>
            \n Title =<\/span> "\u8bf7\u6c42\u53c2\u6570\u4e0d\u5408\u6cd5"<\/span>,<\/span>
            \n Status =<\/span> StatusCodes.<\/span>Status400BadRequest
            \n }<\/span>;<\/span>
            \n context.<\/span>Result =<\/span> new<\/span> BadRequestObjectResult<\/span>(<\/span>problem)<\/span>;<\/span>
            \n }<\/span>
            \n }<\/span><\/p>\n

            public<\/span> void<\/span><\/span> OnActionExecuted<\/span>(<\/span>ActionExecutedContext<\/span> context)<\/span>
            \n {<\/span>
            \n _sw?.<\/span>Stop<\/span>(<\/span>)<\/span>;<\/span>
            \n _logger.<\/span>LogInformation<\/span>(<\/span>"Action {Action} \u8017\u65f6 {Elapsed}ms"<\/span>,<\/span>
            \n context.<\/span>ActionDescriptor.<\/span>DisplayName,<\/span>
            \n _sw?.<\/span>ElapsedMilliseconds)<\/span>;<\/span>
            \n }<\/span>
            \n}<\/span><\/p>\n

            \u6ce8\u518c\u4e3a\u5168\u5c40\u8fc7\u6ee4\u5668<\/p>\n

            builder.<\/span>Services.<\/span>AddControllers<\/span>(<\/span>opts =><\/span>
            \n{<\/span>
            \n opts.<\/span>Filters.<\/span>Add<\/span><<\/span>ValidateAndTimingFilter><\/span><\/span><\/span>(<\/span>)<\/span>;<\/span>
            \n}<\/span>)<\/span>;<\/span><\/p>\n

            2）\u7edf\u4e00\u5f02\u5e38\u8f93\u51fa（ExceptionFilter）<\/h4>\n

            public<\/span> class<\/span> GlobalExceptionFilter<\/span> :<\/span> IExceptionFilter<\/span><\/span>
            \n{<\/span>
            \n private<\/span> readonly<\/span> ILogger<<\/span>GlobalExceptionFilter><\/span><\/span> _logger;<\/span>
            \n private<\/span> readonly<\/span> IHostEnvironment<\/span> _env;<\/span><\/p>\n

            public<\/span> GlobalExceptionFilter<\/span>(<\/span>ILogger<<\/span>GlobalExceptionFilter><\/span><\/span> logger,<\/span> IHostEnvironment<\/span> env)<\/span>
            \n {<\/span> _logger =<\/span> logger;<\/span> _env =<\/span> env;<\/span> }<\/span><\/p>\n

            public<\/span> void<\/span><\/span> OnException<\/span>(<\/span>ExceptionContext<\/span> context)<\/span>
            \n {<\/span>
            \n var<\/span><\/span> ex =<\/span> context.<\/span>Exception;<\/span>
            \n _logger.<\/span>LogError<\/span>(<\/span>ex,<\/span> "MVC \u672a\u5904\u7406\u5f02\u5e38"<\/span>)<\/span>;<\/span><\/p>\n

            var<\/span><\/span> problem =<\/span> new<\/span> ProblemDetails<\/span>
            \n {<\/span>
            \n Title =<\/span> "\u53d1\u751f\u9519\u8bef"<\/span>,<\/span>
            \n Status =<\/span> StatusCodes.<\/span>Status500InternalServerError,<\/span>
            \n Detail =<\/span> _env.<\/span>IsDevelopment<\/span>(<\/span>)<\/span> ?<\/span> ex.<\/span>ToString<\/span>(<\/span>)<\/span> :<\/span> ""<\/span>,<\/span>
            \n Instance =<\/span> context.<\/span>HttpContext.<\/span>Request.<\/span>Path
            \n }<\/span>;<\/span>
            \n context.<\/span>Result =<\/span> new<\/span> ObjectResult<\/span>(<\/span>problem)<\/span>
            \n {<\/span>
            \n StatusCode =<\/span> StatusCodes.<\/span>Status500InternalServerError
            \n }<\/span>;<\/span>
            \n context.<\/span>ExceptionHandled =<\/span> true<\/span>;<\/span> \/\/ \u9632\u6b62\u5411\u5916\u7ee7\u7eed\u629b<\/span>
            \n }<\/span>
            \n}<\/span><\/p>\n

            \u6ce8\u518c<\/p>\n

            builder.<\/span>Services.<\/span>AddControllers<\/span>(<\/span>opts =><\/span>
            \n{<\/span>
            \n opts.<\/span>Filters.<\/span>Add<\/span><<\/span>GlobalExceptionFilter><\/span><\/span><\/span>(<\/span>)<\/span>;<\/span>
            \n}<\/span>)<\/span>;<\/span><\/p>\n

            \u63d0\u793a：\u4e2d\u95f4\u4ef6 vs \u8fc7\u6ee4\u5668<\/p>\n

              \n
            • \u4e2d\u95f4\u4ef6\u4f4d\u4e8e\u6700\u5916\u5c42，\u80fd\u515c\u4f4f\u6240\u6709\u5f02\u5e38（\u5305\u62ec MVC \u524d\/\u5916）\u3002<\/li>\n
            • \u5f02\u5e38\u8fc7\u6ee4\u5668\u4e13\u6ce8 MVC \u5185\u90e8（\u6a21\u578b\u7ed1\u5b9a\/Action\/Result），\u66f4\u6613\u505a\u9886\u57df\u5316\u54cd\u5e94\u8f6c\u6362\u3002<\/li>\n
            • \u5b9e\u6218\u63a8\u8350：\u4e8c\u8005\u7ed3\u5408\u2014\u2014\u4e2d\u95f4\u4ef6\u7edf\u4e00\u515c\u5e95，\u8fc7\u6ee4\u5668\u505a\u9886\u57df\u5316\u5305\u88c5\u3002<\/li>\n<\/ul>\n

              3）\u7ed3\u679c\u8fc7\u6ee4（ResultFilter）\u2014\u2014\u7edf\u4e00\u5305\u88f9\u54cd\u5e94\u683c\u5f0f<\/h4>\n

              public<\/span> class<\/span> WrapResultFilter<\/span> :<\/span> IResultFilter<\/span><\/span>
              \n{<\/span>
              \n public<\/span> void<\/span><\/span> OnResultExecuting<\/span>(<\/span>ResultExecutingContext<\/span> context)<\/span>
              \n {<\/span>
              \n if<\/span> (<\/span>context.<\/span>Result is<\/span> ObjectResult<\/span> obj &&<\/span> obj.<\/span>Value is<\/span> not<\/span> ProblemDetails<\/span>)<\/span>
              \n {<\/span>
              \n context.<\/span>Result =<\/span> new<\/span> ObjectResult<\/span>(<\/span>new<\/span> {<\/span> code =<\/span> 0<\/span>,<\/span> data =<\/span> obj.<\/span>Value,<\/span> msg =<\/span> "ok"<\/span> }<\/span>)<\/span>
              \n {<\/span>
              \n StatusCode =<\/span> obj.<\/span>StatusCode ??<\/span> StatusCodes.<\/span>Status200OK
              \n }<\/span>;<\/span>
              \n }<\/span>
              \n }<\/span>
              \n public<\/span> void<\/span><\/span> OnResultExecuted<\/span>(<\/span>ResultExecutedContext<\/span> context)<\/span> {<\/span> }<\/span>
              \n}<\/span><\/p>\n

              \n

              （\u53ef\u9009）Minimal API \u7684 Endpoint Filters<\/h3>\n

              .NET 7+ \u63d0\u4f9b Endpoint Filters，\u53ef\u5728 Minimal API \u4e2d\u505a\u62e6\u622a\u3002<\/p>\n

              public<\/span> class<\/span> EndpointLogFilter<\/span> :<\/span> IEndpointFilter<\/span><\/span>
              \n{<\/span>
              \n private<\/span> readonly<\/span> ILogger<<\/span>EndpointLogFilter><\/span><\/span> _logger;<\/span>
              \n public<\/span> EndpointLogFilter<\/span>(<\/span>ILogger<<\/span>EndpointLogFilter><\/span><\/span> logger)<\/span> =><\/span> _logger =<\/span> logger;<\/span><\/p>\n

              public<\/span> async<\/span> ValueTask<<\/span>object<\/span>?<\/span>><\/span><\/span> InvokeAsync<\/span>(<\/span>EndpointFilterInvocationContext<\/span> context,<\/span> EndpointFilterDelegate<\/span> next)<\/span>
              \n {<\/span>
              \n _logger.<\/span>LogInformation<\/span>(<\/span>"Endpoint {Route} \u8c03\u7528"<\/span>,<\/span> context.<\/span>HttpContext.<\/span>Request.<\/span>Path)<\/span>;<\/span>
              \n try<\/span>
              \n {<\/span>
              \n return<\/span> await<\/span> next<\/span>(<\/span>context)<\/span>;<\/span>
              \n }<\/span>
              \n catch<\/span> (<\/span>Exception<\/span> ex)<\/span>
              \n {<\/span>
              \n _logger.<\/span>LogError<\/span>(<\/span>ex,<\/span> "Endpoint \u5f02\u5e38"<\/span>)<\/span>;<\/span>
              \n return<\/span> Results.<\/span>Problem<\/span>(<\/span>title<\/span>:<\/span> "\u53d1\u751f\u9519\u8bef"<\/span>,<\/span> statusCode<\/span>:<\/span> 500<\/span>)<\/span>;<\/span>
              \n }<\/span>
              \n }<\/span>
              \n}<\/span><\/p>\n

              var<\/span><\/span> app =<\/span> WebApplication.<\/span>CreateBuilder<\/span>(<\/span>args)<\/span>.<\/span>Build<\/span>(<\/span>)<\/span>;<\/span>
              \napp.<\/span>MapGet<\/span>(<\/span>"\/ping"<\/span>,<\/span> (<\/span>)<\/span> =><\/span> "pong"<\/span>)<\/span>.<\/span>AddEndpointFilter<\/span><<\/span>EndpointLogFilter><\/span><\/span><\/span>(<\/span>)<\/span>;<\/span>
              \napp.<\/span>Run<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

              \n

              \u65e5\u5fd7\u4e0e\u8ffd\u8e2a：\u7ed3\u6784\u5316\u65e5\u5fd7 + \u5173\u8054ID(CorrelationId)<\/h3>\n

              1）\u5199\u7ed3\u6784\u5316\u65e5\u5fd7<\/h4>\n

              _logger.<\/span>LogInformation<\/span>(<\/span>"\u8ba2\u5355\u521b\u5efa\u6210\u529f：OrderId={OrderId}, User={UserId}"<\/span>,<\/span> orderId,<\/span> userId)<\/span>;<\/span><\/p>\n

              2）\u6ce8\u5165\/\u900f\u4f20\u5173\u8054 ID<\/h4>\n
                \n
              • \u5165\u53e3\u751f\u6210 Correlation-Id（\u82e5\u5ba2\u6237\u7aef\u672a\u63d0\u4f9b），\u5199\u5165 HttpContext.TraceIdentifier \u6216 Response Header\u3002<\/li>\n
              • \u6240\u6709\u65e5\u5fd7\u9644\u5e26\u8be5 ID，\u65b9\u4fbf\u96c6\u4e2d\u68c0\u7d22\u3002<\/li>\n<\/ul>\n

                \u4e2d\u95f4\u4ef6\u793a\u4f8b<\/p>\n

                public<\/span> class<\/span> CorrelationIdMiddleware<\/span>
                \n{<\/span>
                \n private<\/span> const<\/span> string<\/span><\/span> HeaderName =<\/span> "X-Correlation-Id"<\/span>;<\/span>
                \n private<\/span> readonly<\/span> RequestDelegate<\/span> _next;<\/span>
                \n public<\/span> CorrelationIdMiddleware<\/span>(<\/span>RequestDelegate<\/span> next)<\/span> =><\/span> _next =<\/span> next;<\/span><\/p>\n

                public<\/span> async<\/span> Task<\/span> InvokeAsync<\/span>(<\/span>HttpContext<\/span> ctx)<\/span>
                \n {<\/span>
                \n if<\/span> (<\/span>!<\/span>ctx.<\/span>Request.<\/span>Headers.<\/span>TryGetValue<\/span>(<\/span>HeaderName,<\/span> out<\/span> var<\/span><\/span> cid)<\/span> ||<\/span> string<\/span>.<\/span>IsNullOrWhiteSpace<\/span>(<\/span>cid)<\/span>)<\/span>
                \n {<\/span>
                \n cid =<\/span> Guid.<\/span>NewGuid<\/span>(<\/span>)<\/span>.<\/span>ToString<\/span>(<\/span>"N"<\/span>)<\/span>;<\/span>
                \n ctx.<\/span>Response.<\/span>Headers[<\/span>HeaderName]<\/span> =<\/span> cid;<\/span>
                \n }<\/span>
                \n using<\/span> (<\/span>LogContext.<\/span>PushProperty<\/span>(<\/span>"CorrelationId"<\/span>,<\/span> cid)<\/span>)<\/span> \/\/ \u82e5\u4f7f\u7528\u652f\u6301\u4f5c\u7528\u57df\u7684\u65e5\u5fd7\u5e93<\/span>
                \n {<\/span>
                \n await<\/span> _next<\/span>(<\/span>ctx)<\/span>;<\/span>
                \n }<\/span>
                \n }<\/span>
                \n}<\/span><\/p>\n

                \n

                \u5e38\u89c1\u53cd\u6a21\u5f0f\u4e0e\u6700\u4f73\u5b9e\u8df5\u6e05\u5355<\/h3>\n

                \u53cd\u6a21\u5f0f<\/h4>\n
                  \n
                • \u5728 finally \u91cc\u629b\u65b0\u5f02\u5e38，\u8986\u76d6\u539f\u5f02\u5e38\u3002<\/li>\n
                • \u6355\u83b7\u540e\u4ec0\u4e48\u90fd\u4e0d\u505a（\u541e\u5f02\u5e38）\u3002<\/li>\n
                • \u7528 throw ex; \u4ee3\u66ff throw;（\u7834\u574f\u5806\u6808）\u3002<\/li>\n
                • \u5728\u5927\u91cf\u7b80\u5355\u5206\u652f\u4e2d\u7528\u5f02\u5e38\u63a7\u5236\u6d41\u7a0b\u3002<\/li>\n
                • \u4e0d\u5bf9\u91ca\u653e\u52a8\u4f5c\u5206\u6bb5 try\/catch，\u5bfc\u81f4\u4e00\u4e2a\u8d44\u6e90\u91ca\u653e\u5931\u8d25\u201c\u62d6\u6b7b\u201d\u540e\u7eed\u91ca\u653e\u3002<\/li>\n
                • Controller \u5230\u5904\u5199 try\/catch，\u7f3a\u5c11\u7edf\u4e00\u5904\u7406（\u5e94\u4ea4\u7ed9\u4e2d\u95f4\u4ef6\/\u8fc7\u6ee4\u5668）\u3002<\/li>\n<\/ul>\n

                  \u6700\u4f73\u5b9e\u8df5<\/h4>\n
                    \n
                  • \u5c31\u8fd1\u5904\u7406 + \u5168\u5c40\u515c\u5e95：\u5c40\u90e8\u4e1a\u52a1\u53ef\u6062\u590d\u5f02\u5e38\u5c31\u5730\u5904\u7406，\u5176\u4ed6\u4ea4\u7ed9\u4e2d\u95f4\u4ef6\/\u8fc7\u6ee4\u5668\u3002<\/li>\n
                  • using\/await using \u4f18\u5148，\u5fc5\u8981\u65f6\u6b63\u786e\u5b9e\u73b0 IDisposable\/IAsyncDisposable\u3002<\/li>\n
                  • \u6807\u51c6\u5316\u9519\u8bef\u54cd\u5e94：\u4f7f\u7528 ProblemDetails \u6216\u7edf\u4e00 {code,msg,data} \u5951\u7ea6\u3002<\/li>\n
                  • \u7ed3\u6784\u5316\u65e5\u5fd7 + CorrelationId，\u4fbf\u4e8e\u6392\u67e5\u4e0e\u94fe\u8def\u8ffd\u8e2a\u3002<\/li>\n
                  • \u5f02\u6b65\u4f18\u5148：await \u53ef\u4fdd\u7559\u539f\u59cb\u5f02\u5e38\u7c7b\u578b\/\u5806\u6808，\u907f\u514d AggregateException\u3002<\/li>\n<\/ul>\n
                    \n

                    \u5b8c\u6574\u4ee3\u7801\u6e05\u5355\u4e0e\u9879\u76ee\u9aa8\u67b6<\/h3>\n

                    Program.cs<\/p>\n

                    var<\/span><\/span> builder =<\/span> WebApplication.<\/span>CreateBuilder<\/span>(<\/span>args)<\/span>;<\/span>
                    \nbuilder.<\/span>Services.<\/span>AddControllers<\/span>(<\/span>options =><\/span>
                    \n{<\/span>
                    \n options.<\/span>Filters.<\/span>Add<\/span><<\/span>ValidateAndTimingFilter><\/span><\/span><\/span>(<\/span>)<\/span>;<\/span>
                    \n options.<\/span>Filters.<\/span>Add<\/span><<\/span>GlobalExceptionFilter><\/span><\/span><\/span>(<\/span>)<\/span>;<\/span>
                    \n options.<\/span>Filters.<\/span>Add<\/span><<\/span>WrapResultFilter><\/span><\/span><\/span>(<\/span>)<\/span>;<\/span>
                    \n}<\/span>)<\/span>;<\/span><\/p>\n

                    var<\/span><\/span> app =<\/span> builder.<\/span>Build<\/span>(<\/span>)<\/span>;<\/span>
                    \napp.<\/span>UseRequestLogging<\/span>(<\/span>)<\/span>;<\/span>
                    \napp.<\/span>MapControllers<\/span>(<\/span>)<\/span>;<\/span>
                    \napp.<\/span>Run<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

                    DemoController.cs<\/p>\n

                    [<\/span>ApiController<\/span><\/span>]<\/span>
                    \n[<\/span>Route<\/span>(<\/span>"api\/[controller]"<\/span>)<\/span><\/span><\/span>]<\/span>
                    \npublic<\/span> class<\/span> DemoController<\/span> :<\/span> ControllerBase<\/span><\/span>
                    \n{<\/span>
                    \n [<\/span>HttpGet<\/span>(<\/span>"ok"<\/span>)<\/span><\/span><\/span>]<\/span>
                    \n public<\/span> IActionResult<\/span> OkDemo<\/span>(<\/span>)<\/span> =><\/span> Ok<\/span>(<\/span>new<\/span> {<\/span> message =<\/span> "hello"<\/span> }<\/span>)<\/span>;<\/span><\/p>\n

                    [<\/span>HttpGet<\/span>(<\/span>"boom"<\/span>)<\/span><\/span><\/span>]<\/span>
                    \n public<\/span> IActionResult<\/span> Boom<\/span>(<\/span>)<\/span>
                    \n {<\/span>
                    \n using<\/span> var<\/span><\/span> fs =<\/span> System.<\/span>IO.<\/span>File.<\/span>OpenRead<\/span>(<\/span>"\/path\/not\/exist"<\/span>)<\/span>;<\/span> \/\/ \u6545\u610f\u89e6\u53d1\u5f02\u5e38<\/span>
                    \n return<\/span> Ok<\/span>(<\/span>)<\/span>;<\/span>
                    \n }<\/span>
                    \n}<\/span><\/p>\n

                    ValidateAndTimingFilter.cs \/ GlobalExceptionFilter.cs \/ WrapResultFilter.cs \/ RequestLoggingMiddleware.cs<\/p>\n

                    \u89c1\u4e0a\u6587\u5bf9\u5e94\u5c0f\u8282，\u76f4\u63a5\u590d\u5236\u5230\u9879\u76ee\u4e2d\u5373\u53ef\u8fd0\u884c\u3002<\/p>\n

                    \n

                    \u603b\u7ed3<\/h3>\n
                      \n
                    • try\/catch\/finally \u89e3\u51b3\u5c40\u90e8\u5f02\u5e38\u4e0e\u8d44\u6e90\u91ca\u653e，\u4f46\u8981\u907f\u5f00 finally \u8986\u76d6\u5f02\u5e38\u7684\u5751\u3002<\/li>\n
                    • using\/await using \u662f\u91ca\u653e\u8d44\u6e90\u7684\u9996\u9009\u65b9\u5f0f\u3002<\/li>\n
                    • \u4e2d\u95f4\u4ef6\u8d1f\u8d23\u5168\u5c40\u515c\u5e95\u4e0e\u4e00\u81f4\u6027（\u5f02\u5e38\u4e0e\u65e5\u5fd7），\u8fc7\u6ee4\u5668\u8d1f\u8d23MVC \u5185\u90e8\u7684\u7cbe\u7ec6\u5316\u5904\u7406\u3002<\/li>\n
                    • \u914d\u5408\u7ed3\u6784\u5316\u65e5\u5fd7\u4e0e\u5173\u8054 ID，\u6392\u969c\u63d0\u6548\u4e00\u4e2a\u91cf\u7ea7\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

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