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@ -59,117 +59,35 @@ public class WrapResultAttribute : Attribute |
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} |
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``` |
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- 实现 IAsyncExceptionFilter(拦截异常,抛异常时指定返回格式) |
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- 添加异常过滤器(拦截异常,抛异常时指定返回格式) |
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```csharp |
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public sealed class ResultExceptionFilter : IAsyncExceptionFilter, ITransientDependency |
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{ |
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public async Task OnExceptionAsync(ExceptionContext context) |
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{ |
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if (!ShouldHandleException(context)) |
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{ |
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return; |
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} |
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await HandleAndWrapException(context); |
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} |
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private bool ShouldHandleException(ExceptionContext context) |
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{ |
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if (context.ActionDescriptor.AsControllerActionDescriptor().ControllerTypeInfo.GetCustomAttributes(typeof(WrapResultAttribute), true).Any()) |
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{ |
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return true; |
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} |
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if (context.ActionDescriptor.GetMethodInfo().GetCustomAttributes(typeof(WrapResultAttribute), true).Any()) |
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{ |
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return true; |
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} |
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return false; |
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} |
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private async Task HandleAndWrapException(ExceptionContext context) |
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{ |
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var exceptionHandlingOptions = context.GetRequiredService<IOptions<AbpExceptionHandlingOptions>>().Value; |
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var exceptionToErrorInfoConverter = context.GetRequiredService<IExceptionToErrorInfoConverter>(); |
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var remoteServiceErrorInfo = exceptionToErrorInfoConverter.Convert(context.Exception, options => |
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{ |
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options.SendExceptionsDetailsToClients = exceptionHandlingOptions.SendExceptionsDetailsToClients; |
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options.SendStackTraceToClients = exceptionHandlingOptions.SendStackTraceToClients; |
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}); |
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- [LionExceptionFilter](https://github.com/WangJunZzz/abp-vnext-pro/blob/main/aspnet-core/shared/Lion.AbpPro.Shared.Hosting.Microservices/Microsoft/AspNetCore/Mvc/Filters/LionExceptionFilter.cs) |
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var logLevel = context.Exception.GetLogLevel(); |
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- 添加结果过滤器 |
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- [LionResultFilter](https://github.com/WangJunZzz/abp-vnext-pro/blob/main/aspnet-core/shared/Lion.AbpPro.Shared.Hosting.Microservices/Microsoft/AspNetCore/Mvc/Filters/LionResultFilter.cs) |
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var remoteServiceErrorInfoBuilder = new StringBuilder(); |
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remoteServiceErrorInfoBuilder.AppendLine($"---------- {nameof(RemoteServiceErrorInfo)} ----------"); |
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remoteServiceErrorInfoBuilder.AppendLine(context.GetRequiredService<IJsonSerializer>().Serialize(remoteServiceErrorInfo, indented: true)); |
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var logger = context.GetService<ILogger<ResultExceptionFilter>>(NullLogger<ResultExceptionFilter>.Instance); |
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logger.LogWithLevel(logLevel, remoteServiceErrorInfoBuilder.ToString()); |
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logger.LogException(context.Exception, logLevel); |
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await context.GetRequiredService<IExceptionNotifier>().NotifyAsync(new ExceptionNotificationContext(context.Exception)); |
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context.HttpContext.Response.StatusCode = 200; |
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var result = SimplifyMessage(context); |
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context.Result = new ObjectResult(result); |
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context.Exception = null; //Handled! |
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} |
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## 注册 Filter |
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private WrapResult<object> SimplifyMessage(ExceptionContext context) |
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{ |
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var result = new WrapResult<object>(); |
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var localizer = context.GetService<IStringLocalizer<AbpProResource>>(); |
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switch (context.Exception) |
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```csharp |
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/// <summary> |
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/// 异常处理 |
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/// </summary> |
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private void ConfigureAbpExceptions(ServiceConfigurationContext context) |
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{ |
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context.Services.AddMvc |
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( |
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options => |
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{ |
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case AbpAuthorizationException: |
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result.SetFail("权限不足", 401); |
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break; |
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case AbpValidationException: |
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result.SetFail("请求参数验证失败", 400); |
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break; |
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case EntityNotFoundException: |
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result.SetFail("实体不存在", 506); |
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break; |
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case NotImplementedException: |
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result.SetFail("未实现功能", 507); |
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break; |
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default: |
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{ |
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if (context.Exception is IHasErrorCode codeException) |
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{ |
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result.SetFail(localizer[codeException.Code]); |
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foreach (var key in context.Exception.Data.Keys) |
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{ |
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result.SetFail(result.Message.Replace("{" + key + "}", context.Exception.Data[key]?.ToString())); |
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} |
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} |
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else |
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{ |
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result.SetFail(context.Exception.Message); |
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} |
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break; |
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} |
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options.Filters.Add(typeof(LionExceptionFilter)); |
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options.Filters.Add(typeof(LionResultFilter)); |
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} |
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return result; |
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} |
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); |
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} |
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``` |
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## 注册 Filter |
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```csharp |
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public override void ConfigureServices(ServiceConfigurationContext context) |
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{ |
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context.Services.AddMvc(options => |
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{ |
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options.Filters.Add(typeof(ResultExceptionFilter)); |
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}); |
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} |
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public override void ConfigureServices(ServiceConfigurationContext context) |
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{ |
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ConfigureAbpExceptions(context); |
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} |
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``` |
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## 使用 |
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@ -199,3 +117,5 @@ public sealed class ResultExceptionFilter : IAsyncExceptionFilter, ITransientDep |
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} |
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``` |
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- 不管接口时有异常还是成功返回结果都是 WrapResult,PermissionOutput 在 WrapResult.Data 中。 |
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王军
4 years ago