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Apache Struts 2 Documentation
UrlValidator Annotation
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This validator checks that a field is a valid URL.

Usage

The annotation must be applied at method level.

Parameters

Parameter | Required | Default | Notes
--- | --- | --- | ---
message | yes |  | field error message
key | no |  | i18n key from language specific properties file
messageParams | no |  | additional params to be used to customize message - will be evaluated against the Value Stack
fieldName | no |  | field name under validation
shortCircuit | no | false | if this validator should be used as shortCircuit
urlRegex | no |  | defines regex to use to validate url
urlRegexExpression | no |  | defines regex as expression to validate url, expression will be evaluated against current stack to get proper regex
type | yes | ValidatorType.FIELD | Enum value from ValidatorType. Either FIELD or SIMPLE can be used here

Examples

UrlValidator usage example
UrlValidator usage example
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``urlRegex`` neither `urlRegexExpression` `are only used on client side to validate URLs - this will be changed with next major release!`

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If no `urlRegex` neither `urlRegexExpression` is defined, default regex will be used instead, based on StackOverflow answer

Default URL regex