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我正在尝试为 MVC 参数编写正则表达式验证规则，在这种情况下，参数是“电子邮件”，而我拥有的规则是：^[A-z0-9_.@]*$

规则的问题 - 认为：“marty\invalid_at_gmail.com”是有效的

我需要它来禁止参数中的“\”

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7 回答 7

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在您的模型中，您可以使用EmailAddressAttribute：

[EmailAddress]
string UserMail { get; set; }

如果您使用 jQuery 验证，它最终可能会在客户端使用其正则表达式来处理电子邮件。

于 2013-10-24T12:17:03.340 回答
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验证电子邮件^[A-z0-9_.@]*$不能保证有效的电子邮件地址..ThisIsAnInvalidEmailId@invalid.com将与该正则表达式匹配，但该电子邮件 ID 是否有效。不

您的正则表达式应该是^[^@]+@[^@]+$然后检查它是否有效向该电子邮件地址发送邮件..如果您收到回复电子邮件是有效的！

如果您想防止用户拼写错误，您可以使用mailcheck.js

在此处输入图像描述

于 2013-10-24T12:19:23.027 回答
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我刚刚阅读了一篇使用以下（Perl）正则表达式进行验证的文章。简而言之，根据 rfc 使用正则表达式来验证电子邮件可能是短视的。

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于 2013-10-24T12:17:21.943 回答
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哈..我的字符串的问题是 - 使用了 Az（大写和小写）我需要的只是用 a-zA-Z 替换它以满足我的需要

于 2013-10-24T12:25:58.817 回答
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    [Required(ErrorMessage = "Email address is required")]
    [StringLength(50, ErrorMessage="Max 50 characters")]
    [RegularExpression( "^[a-z0-9_\\+-]+(\\.[a-z0-9_\\+-]+)*@[a-z0-9-]+(\\.[a-z0-9]+)*\\.([a-z]{2,4})$" , ErrorMessage = "Invalid email format." )]

    public string EmailAddress { get; set; }

看到这个解决方案，它很有帮助，并且是演示中使用的代码示例的链接

无论如何，这是演示中使用的模式：

^(([A-za-z]+[\s]{1}[A-za-z]+)|([A-Za-z]+))$
于 2018-07-13T19:56:28.640 回答
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你可以试试@"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$"

于 2013-10-24T12:16:49.270 回答
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我写了一个正则表达式来验证电子邮件地址

"(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\]) "

希望能帮助到你 ：）

于 2013-10-24T12:17:00.330 回答