email-validation | 易学教程

detecting mistyped email addresses in javascript

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I notice sometimes users mistype their email address (in a contact-us form), for example, typing @yahho.com, @yhoo.com, or @yahoo.co instead of @yahoo.com I feel that this can be corrected on-the-spot with some javascript. Simply check the email address for possible mistakes, such as the ones listed above, so that if the user types his_email@yhoo.com, a non-obtrusive message can be displayed, or something like that, suggesting that he probably means @yahoo.com, and asking to double check he typed his email correctly. The Question is: How can I detect -in java script- that a string is very

jQuery email validation requirements

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问题 I'm using the jQuery.Validation plugin for client side validation, and among other things I validate email addresses. Now I also want to validate on the server side (for users without javascript etc). For lack of better ideas I started on a regex, but quite soon I realized that I want to important to use the same requirements as the jQuery method. Alternatively, if I could find some way to override the jQuery validation requirements with my own, that'd be OK to. Does anyone know what

What is the actual minimum length of an email address as defined by the IETF?

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问题 I'm specifically looking for the minimum length of the prefix and domain. I've seen conflicting information and nothing that looks authoritative. For reference, I found this page which claims that a one character email address is functional: http://www.cjvandyk.com/blog/Lists/Posts/Post.aspx?ID=176 I tried validating email addresses at Gmail and they expect prefix greater than or equal to 6. These are obviously way off. My web framework expects prefix greater than or equal to 2. 回答1: The

Symfony2 - How to validate an email address in a controller

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问题 There is an email validator in symfony that can be used in a form: http://symfony.com/doc/current/reference/constraints/Email.html My question is: How can I use this validator in my controlelr in order to validate an email address? This is possible by using the PHP preg_match for usere, but my question is if there is a possibility to use the Symfony already built in email validator. Thank you in advance. 回答1: By using validateValue method of the Validator service use Symfony\Component

Email address validation in C# MVC 4 application: with or without using Regex [duplicate]

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问题 This question already has answers here : Email address validation using ASP.NET MVC data type attributes (8 answers) Closed 4 years ago . I have an MVC 4 web application and I need to enter and validate some email addresses, without sending an email to the user's email address. Currently I am using basic regex email validation with this pattern: [RegularExpression(@"\A(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*

Confirmation link Email in JSF

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问题 How do you make a link which you can email to users to confirm their email address is clicked in JSF? i.e. once they click on the link their account will be activated. 回答1: Assuming you're already on JSF 2.0, you could grab @ManagedProperty and @PostConstruct . @ManagedBean @RequestScoped public class Activation { @ManagedProperty(value="#{param.key}") private String key; private boolean valid; @PostConstruct public void init() { valid = check(key); // And auto-login if valid? } // ... } and

jQuery email validation requirements

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I'm using the jQuery.Validation plugin for client side validation, and among other things I validate email addresses. Now I also want to validate on the server side (for users without javascript etc). For lack of better ideas I started on a regex, but quite soon I realized that I want to important to use the same requirements as the jQuery method. Alternatively, if I could find some way to override the jQuery validation requirements with my own, that'd be OK to. Does anyone know what requirements the jQuery method has? Is it regex validation, and, in case it is, what is the expression? Is

List of mock valid/invalid Email Addresses for Unit Tests

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Does anyone know of a list of email addresses (which don’t need to be real) I can use for an email validation assembly for a unit test? I’ve been looking for such a list and can’t seem to find one. I’m not looking for real addresses, just ones that fit, and the more things I can throw at the test the better. I’ve got 10 right now, but if there is a list, it would give me a more thorough test. I believe you were looking for something like this: List of Valid and Invalid Email Addresses Check the tests of the Apache Commons EmailValidator class: EmailTest , EmailValidatorTest . The

What is the actual minimum length of an email address as defined by the IETF?

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I'm specifically looking for the minimum length of the prefix and domain. I've seen conflicting information and nothing that looks authoritative. For reference, I found this page which claims that a one character email address is functional: http://www.cjvandyk.com/blog/Lists/Posts/Post.aspx?ID=176 I tried validating email addresses at Gmail and they expect prefix greater than or equal to 6. These are obviously way off. My web framework expects prefix greater than or equal to 2. The shortest valid email address may consist of only two parts: name and domain. name@domain Since both the name and

jQuery Validation Plugin allows special character in email?

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问题 I'm using the jQuery Validation Plugin and everything works fine exept for emails, because there the ß character ist allowed (which of course should be non valid)? It's not something only happening at my site I can even bypass the validation on the officeial demo site: http://jquery.bassistance.de/validate/demo/ Rule I'm using: $("#form").validate({ rules: { txtSubscribe: { required: true, email: true } } }); Is there a way to add specific characters to the plugins email validation rule, or