Question

我有一个RequestDto，它接受 int 参数

[Route("/club/thread/{Id}","GET")]
public MyDto{
     [Apimember(DataType="int32")]
     public int Id{get;set;}
}

当我输入http://myservice/club/thread/aaa.json时，抛出异常：

[RequestBindingException：无法绑定请求]

ServiceStack.WebHost.Endpoints.RestHandler.GetRequest（IHttpRequest httpReq，IRestPath restPath）+538

ServiceStack.WebHost.Endpoints.RestHandler.ProcessRequest（IHttpRequest httpReq，IHttpResponse httpRes，String operationName）+1023

System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute（）+913

System.Web.HttpApplication.ExecuteStep（IExecutionStep step，Boolean＆amp; completedSynchronously）+165

AppHost.ExceptionHandler无法捕获此异常，我该如何捕获它？

Answer 1

请求绑定异常是在服务请求的上下文之前抛出的未捕获异常，因此由UncaughtExceptionHandlers处理，可以在AppHost中注册：

public override void Configure(Container container)
{
    //Custom global uncaught exception handling strategy
    this.UncaughtExceptionHandlers.Add((req, res, operationName, ex) =>
    {
        res.StatusCode = 400;
        res.Write(string.Format("Exception {0}", ex.GetType().Name));
        res.EndRequest(skipHeaders: true);
    });
}

或者覆盖AppHost的OnUncaughtException方法，例如：

public override void OnUncaughtException(
    IRequest httpReq, IResponse httpRes, string operationName, Exception ex)
{
    "In OnUncaughtException...".Print();
    base.OnUncaughtException(httpReq, httpRes, operationName, ex);
}

如何捕获ServiceStack RequestBindingException

1 个答案: