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自动应用程序配置文件的用户友好异常

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grinay · 技术社区 · 7 年前

我遇到了麻烦。我有在实体中定义的业务规则,而在实体中验证此规则时,如果业务规则被破坏,我将抛出UserFriendlyException。例子:

private DateTime? _expireDate;

public DateTime? ExpireDate {
    get => _expireDate;
    set {
        if (value.HasValue) {
            _expireDate = EnsureExpireDateRules (value.Value);
            PeriodInMonth = 0;
        }
    }
}

private DateTime EnsureExpireDateRules (DateTime dateTime) {
    dateTime = dateTime.GetDateZeroTime ();

    var currentUtcDateTime = DateTime.UtcNow.GetDateZeroTime ();

    if (dateTime <= currentUtcDateTime)
        throw new UserFriendlyException ("License date should be at least one day late than today.");

    return dateTime;
}

创建映射();

当它发生时,我在客户端没有UserFriendlyException,相反,我有500个代码的普通异常(内部服务器错误)。在日志系统中,我看到以下内容:

AutoMapper.AutoMapperMappingException: Error mapping types.

Mapping types:
LicenseRequestInput -> LicenseRequest
LicenseManager.LicenseManager.Dto.LicenseRequestInput -> LicenseManager.LicenseManager.Entities.LicenseRequest

Type Map configuration:
LicenseRequestInput -> LicenseRequest
LicenseManager.LicenseManager.Dto.LicenseRequestInput -> LicenseManager.LicenseManager.Entities.LicenseRequest

Destination Member:
ExpireDate
 ---> Abp.UI.UserFriendlyException: License date should be at least one day late than today.
   at LicenseManager.LicenseManager.Entities.LicenseRequest.EnsureExpireDateRules(DateTime dateTime) in /Users/grinay/License management portal/src/LicenseManager.Core/LicenseManager/Entities/LicenseRequest.cs:line 56
.....more......

看起来ABP没有拦截来自Automap配置文件的异常。请帮助我解决这个问题。

0 回复 | 直到 7 年前

1

0

Alper Ebicoglu 7 年前

问题是:

自动映射器包装 UserFriendlyException AutoMapperMappingException . 因为外部异常不是 用户友好异常 阿布再也无法应付了!

解决方案:

投入 EnsureExpireDateRules() 在你的DTO里面( LicenseRequestInput

更新:

你想做的最好的做法是;

protected set ,使构造函数受保护。您可以创建一个公共方法,用强制属性初始化您的实体。让你的经理来处理你的业务领域逻辑。

public class MyEntity 
{
    public DateTime? ExpireDate {get; protected set;}

    protected MyEntity()
    {

    }

    public MyEntity(mandatoryPropertiesToCreateYourEntity...)
    {

    }
}

 public class MyEntityManager
    {

        public void SetExpireDate(MyEntity myEntity, DateTime? expireDate){
        {
              if(myBusinessLogicIsOk) {
                  myEntity.ExpireDate = expireDate;
              }
              else
              {
                  throw new Exception("Invalid expire date!");
              }
        }
   }

2

0

grinay 7 年前

我为此扩展了AbpExceptionFilter。不确定这是否是好的做法,但我已经用它包装任务返回值。

我继承了AbpExceptionFilter并重写了handleandwrappexception方法。

protected override void HandleAndWrapException(ExceptionContext context, WrapResultAttribute wrapResultAttribute)
        {
  if (!ActionResultHelper.IsObjectResult(context.ActionDescriptor.GetMethodInfo().ReturnType))
            {
                return;
            }

            context.HttpContext.Response.StatusCode = GetStatusCode(context, wrapResultAttribute.WrapOnError);

            if (!wrapResultAttribute.WrapOnError)
            {
                return;
            }

            if (context.Exception is AutoMapperMappingException && context.Exception.InnerException is UserFriendlyException)
            {
                context.Exception = context.Exception.InnerException;;
            }

            context.Result = new ObjectResult(
                new AjaxResponse(
                    _errorInfoBuilder.BuildForException(context.Exception),
                    context.Exception is AbpAuthorizationException
                )
            );

            EventBus.Trigger(this, new AbpHandledExceptionData(context.Exception));

            context.Exception = null; //Handled!

        }

 public override void PreInitialize()
        {
...
            Configuration.ReplaceService<AbpExceptionFilter, CustomAbpExceptionFilter>();

...
        }

现在它返回我的UserFriendlyException以防映射错误。