asp.net core MVC 全局过滤器之ExceptionFilter过滤器(1)_实用技巧_

 public class HttpGlobalExceptionFilter : IExceptionFilter { public void OnException(ExceptionContext context) { throw new NotImplementedException(); } } 

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 /// 全局异常过滤器 /// 
 public class HttpGlobalExceptionFilter : IExceptionFilter { readonly ILoggerFactory _loggerFactory; readonly IHostingEnvironment _env; public HttpGlobalExceptionFilter(ILoggerFactory loggerFactory, IHostingEnvironment env) { _loggerFactory = loggerFactory; _env = env; } public void OnException(ExceptionContext context) { var logger = _loggerFactory.CreateLogger(context.Exception.TargetSite.ReflectedType); logger.LogError(new EventId(context.Exception.HResult), context.Exception, context.Exception.Message); var json = new ErrorResponse("未知错误,请重试"); if (_env.IsDevelopment()) json.DeveloperMessage = context.Exception; context.Result = new ApplicationErrorResult(json); context.HttpContext.Response.StatusCode = (int)HttpStatusCode.InternalServerError; context.ExceptionHandled = true; } public class ApplicationErrorResult : ObjectResult { public ApplicationErrorResult(object value) : base(value) { StatusCode = (int)HttpStatusCode.InternalServerError; } } public class ErrorResponse { public ErrorResponse(string msg) { Message = msg; } public string Message { get; set; } public object DeveloperMessage { get; set; } } 

services.AddMvc(options => { options.Filters.Add(); });