.net全局异常处理

在Global.asax文件中添加如下代码：

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void Application_Error(object sender, EventArgs e)     {         Exception lastError = Server.GetLastError();         if (lastError != null)         {             string strExceptionMessage = string.Empty;             //如果是HTTP异常             HttpException httpError = lastError as HttpException;             if (httpError != null)             {                 int httpCode = httpError.GetHttpCode();                 strExceptionMessage = httpError.Message;                 if (httpCode == 400 || httpCode == 404)                 {                     Response.StatusCode = 404;                     //跳转到指定的静态404信息页面，根据需求自己更改URL                     Response.WriteFile("/404.html");                     Server.ClearError();                     return;                 }             }             var msg = lastError.InnerException.InnerException.Message;             if (msg == "402")             {                 Response.StatusCode = 402;                 Response.WriteFile("/402.html");                 Server.ClearError();                 return;             }             Response.StatusCode = 500;             Response.WriteFile("/500.html");             Server.ClearError();         }     }

转自：https://blog.csdn.net/qq_32109957/article/details/80599224