abp vnext验证

验证DTO

微软官方文档:https://docs.microsoft.com/zh-cn/aspnet/core/mvc/models/validation?view=aspnetcore-7.0

数据注解 Attribute
使用数据注解是一种以声明式对DTO进行验证的简单方法. 示例 :

public class CreateBookDto
{
    [Required]
    [StringLength(100)]
    public string Name { get; set; }
    [Required]
    [StringLength(1000)]
    public string Description { get; set; }
    [Range(0, 999.99)]
    public decimal Price { get; set; }
}

当使用该类作为应用服务或控制器的参数时,将对其自动验证并抛出本地化异常(由ABP框架处理).

IValidatableObject
IValidatableObject can be implemented by a DTO to perform custom validation logic. CreateBookDto in the following example implements this interface and checks if the Name is equals to the Description and returns a validation error in this case. 可以将DTO实现 IValidatableObject 接口进行自定义验证逻辑. 下面的示例中 CreateBookDto 实现了这个接口,并检查 Name 是否等于 Description 并返回一个验证错误.

using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
namespace Acme.BookStore
{
    public class CreateBookDto : IValidatableObject
    {
        [Required]
        [StringLength(100)]
        public string Name { get; set; }
        [Required]
        [StringLength(1000)]
        public string Description { get; set; }
        [Range(0, 999.99)]
        public decimal Price { get; set; }
        public IEnumerable<ValidationResult> Validate(
            ValidationContext validationContext)
        {
            if (Name == Description)
            {
                yield return new ValidationResult(
                    "Name and Description can not be the same!",
                    new[] { "Name", "Description" }
                );
            }
        }
    }
}

原文：https://docs.abp.io/zh-Hans/abp/latest/Validation