如何使用 FluentValidation 验证上传的文件?
<input type="file" asp-for="Files" multiple />
最佳答案
您的ViewModel
必须有public IList<IFormFile> Files { get; set; }
:
public class CustomViewModel
{
public IList<IFormFile> Files { get; set; }
...
}
您必须为IFormFile
创建一个验证器输入如下:
public class FileValidator : AbstractValidator<IFormFile>
{
public FileValidator()
{
RuleFor(x => x.Length).NotNull().LessThanOrEqualTo(100)
.WithMessage("File size is larger than allowed");
RuleFor(x => x.ContentType).NotNull().Must(x => x.Equals("image/jpeg") || x.Equals("image/jpg") || x.Equals("image/png"))
.WithMessage("File type is larger than allowed");
...
}
}
现在您可以使用FileValidator
在你的CustomValidator
像这样:
public class CustomValidator : AbstractValidator<CustomViewModel>
{
public CustomValidator()
{
RuleForEach(x => x.Files).SetValidator(new FileValidator());
}
}
关于asp.net-core - 如何通过 FluentValidation 验证上传的文件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/59358252/