THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
Let's create a Client-Side validation workflow, step by step.
The validate attribute is set to true.
Some themes do not support client-side validation.
Step 1
Create the form.
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{snippet:id=clientValidation|lang=xml|javadoc=false|url=struts2/apps/showcase/src/main/webapp/validation/quiz-client.jsp} |
This case uses the default xhtml theme, so the <s:head > tag is used to link a style sheet.
Step 2
Create the Action class.
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{snippet:id=quizAction|javadoc=false|lang=java|url=struts2/apps/showcase/src/main/java/org/apache/struts2/showcase/validation/QuizAction.java} |
Step 3
Create the validation.xml to configure the validators to be used.
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{snippet:id=quizValidators|javadoc=false|lang=xml|url=struts2/apps/showcase/src/main/resources/org/apache/struts2/showcase/validation/QuizAction-validation.xml} |
Action and Namespace
A correct action and namespace attributes must be provided to the <s:form> tag. For example, if the action named "quizClient" is defined in the "/validation" namespace, the form must be configured as:
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<s:form method="post" validate="true" action="quizClient" namespace="/validation"> <s:textfield label="Name" name="name"/> <s:textfield label="Age" name="age"/> <s:textfield label="Favorite color" name="answer"/> <s:submit/> </s:form> |
While the following will "work" in the sense that the form will function correctly, client-side validation will not. That is because Struts must know the exact namespace and action (rather than a URL) to properly support validation.
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<s:form method="post" validate="true" action="/validation/quizClient.action"> <s:textfield label="Name" name="name"/> <s:textfield label="Age" name="age"/> <s:textfield label="Favorite color" name="answer"/> <s:submit/> </s:form> |