using Microsoft.AspNetCore.Mvc.Filters; using Microsoft.AspNetCore.Mvc; namespace ImageConvertService.ExceptionHandling; public class UserFriendlyExceptionFilter : IExceptionFilter { public void OnException(ExceptionContext context) { if (context.Exception is UserFriendlyException userFriendlyException) { // 设置处理状态为已处理,阻止默认的异常处理逻辑 context.ExceptionHandled = true; // 设置响应状态码和内容 context.Result = new ObjectResult(new { error = userFriendlyException.Message }) { StatusCode = 400 // Bad Request }; } } }