代码之家 › 专栏 › 技术社区 › Alan B

ASP.NET核心自定义验证属性未触发

validationattribute custom-attributes asp.net-core c#

2

Alan B · 技术社区 · 6 年前

[AttributeUsage(AttributeTargets.Method, AllowMultiple = true)]
    public class CheckValidRoute : ValidationAttribute
    {
        private readonly string _apiRoute;
        private readonly string _operation;

        public override bool RequiresValidationContext { get { return true; } }

        public CheckValidRoute(string apiRoute, string operation)
        {
            _apiRoute = apiRoute;
            _operation = operation;
        }

        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
        {
           //Validation logic here
        }
    }

public class TestController : ControllerBase
    {
        [HttpGet("production/{movieId}/Test")]
        [ProducesResponseType(typeof(ResponseModel<string>), 200)]
        [Authorize(Policy = SecurityConstants.PseudofilmAuthorizationPolicy)]
        [CheckValidRoute("production/{movieId}/Test", "GET")]
        public async Task<ResponseModel<string>> TestGet(long movieId)
        {
            return ResponseModelHelper.BuildResponse("Success", $"production/{movieId}/Test", "Test");
        }
    }

我不知道我在这里错过了什么。

-艾伦-

1 回复 | 直到 6 年前

1

5

Simply Ged Saeed 6 年前

使用错误的基类来实现属性。 ValidationAttribute 用于 Models 验证其属性值。这方面的一个例子是 Required 属性。

ActionFilter

public class CheckValidRouteAttribute : ActionFilterAttribute
{
    private readonly string _apiRoute;
    private readonly string _operation;

    public CheckValidRouteAttribute(string apiRoute, string operation) : base()
    {
        _apiRoute = apiRoute;
        _operation = operation;
    }

    public override void OnActionExecuting(ActionExecutingContext context)
    {
        var request = context.HttpContext.Request;

        var method = request.Method;

        if (string.Compare(method, _operation, true) != 0)
        {
            context.Result = new BadRequestObjectResult("HttpMethod did not match");
        }
    }
}

在 OnActionExecuting HttpContext.Request 对象。我把它作为练习留给你,因为我不知道你的确切要求:-)

OnAction正在执行 将在调用控制器方法之前调用,以便您可以执行验证。

您可以阅读有关ActionFilters的更多信息 here