如何在托管的web api .net上捕获错误并返回它...下面是我的代码

GlobalConfiguration.Configuration.Services.Replace(typeof(IExceptionHandler), new CustomExceptionHandler());

public class CustomExceptionHandler : IExceptionHandler
{
    public Task HandleAsync(ExceptionHandlerContext context, CancellationToken cancellationToken)
    {
        if (context.Exception is YourCustomException)
        {
            // 处理自定义异常
            var response = context.Request.CreateResponse(HttpStatusCode.BadRequest, new { error = context.Exception.Message });
            context.Result = new ResponseMessageResult(response);
        }
        else
        {
            // 处理其他异常
            var response = context.Request.CreateResponse(HttpStatusCode.InternalServerError, new { error = "An error occurred" });
            context.Result = new ResponseMessageResult(response);
        }

        return Task.FromResult(0);
    }
}

public IHttpActionResult Get()
{
    try
    {
        // 执行操作
        return Ok("Success");
    }
    catch (Exception ex)
    {
        throw new YourCustomException("An error occurred");
    }
}