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  1. What does the @Valid annotation indicate in Spring?

    Aug 29, 2010 · 21 IIRC @Valid isn't a Spring annotation but a JSR-303 annotation (which is the Bean Validation standard). What it does is it basically checks if the data that you send to the …

  2. Which characters make a URL invalid? - Stack Overflow

    Oct 10, 2009 · 12 All valid characters that can be used in a URI (a URL is a type of URI) are defined in RFC 3986. All other characters can be used in a URL provided that they are "URL …

  3. Difference between @Valid and @Validated in Spring

    Mar 23, 2016 · In the example code snippets of the question, @Valid and @Validated make no difference. But if the @RequestBody is annotated with a List object, or is a string value …

  4. What characters are allowed in an email address? - Stack Overflow

    Jan 12, 2010 · The changes in this spec essentially added international characters as valid alphanumeric characters (atext) without affecting the rules on allowed & restricted special …

  5. How to check for a valid Base64 encoded string - Stack Overflow

    Validates that the specified span of text is comprised of valid base-64 encoded data. true if base64Text contains a valid, decodable sequence of base-64 encoded data; otherwise, false. …

  6. What is a valid URL query string? - Stack Overflow

    Nov 14, 2012 · What characters are allowed in an URL query string? Do query strings have to follow a particular format?

  7. Is 0.0.0.0 a valid IP address? - Stack Overflow

    Sep 7, 2010 · So, I think this is a legitimate question and is related to programming. For example, if you are storing an IP address, you might want to represent "no IP address available" as …

  8. c# - How to validate GUID is a GUID - Stack Overflow

    Jun 2, 2011 · How to determine if a string contains a GUID vs just a string of numbers. will a GUID always contain at least 1 alpha character?

  9. How can I validate an email address in JavaScript?

    Sep 5, 2008 · I'd like to check if the user input is an email address in JavaScript, before sending it to a server or attempting to send an email to it, to prevent the most basic mistyping. How could …

  10. How can I check if a string is a valid number? - Stack Overflow

    30 The JavaScript global isFinite() checks if a value is a valid (finite) number. See MDN for the difference between Number.isFinite () and global isFinite ().