我如何在C#中验证localhost的URL [英] How I can validate urls in C# for localhost

问题描述

我在MVC中使用UrlAttribute

I am using UrlAttribute in MVC

但不接受localhost网址，例如 http://localhost/GCWeb

but its not accepting the localhost urls e.g http://localhost/GCWeb

[Url(ErrorMessage = "please_enter_valid_ftp_url", ErrorMessage = null)] 
public string Url { get; set; }

这会验证网址，但不会验证本地主机的网址.

This validates the urls but not for localhost urls.

我该怎么做?

推荐答案

我还建议创建一个自定义验证器属性类.但是我想使用System.Uri类进行验证，而不是使用自定义个人正则表达式.

I also suggest to create a custom validator attribute class. But I'd like to use System.Uri class to validate instead of custom personal regex.

public class UriAttribute: ValidationAttribute
{
    protected override ValidationResult IsValid(object value, ValidationContext validationContext)
    {
        Uri uri;
        bool valid = Uri.TryCreate(Convert.ToString(value), UriKind.Absolute, out uri);

        if (!valid)
        {
            return new ValidationResult(ErrorMessage);
        }
        return ValidationResult.Success;
    }
}

通过使用System.Uri类，我们可以排除自身正则表达式出错的机会.

By using System.Uri class, we can leave out chances of error for own regex.

这篇关于我如何在C#中验证localhost的URL的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！