Apache Struts 2 Documentation > Home > Guides > Core Developers Guide > Validation > Using Non Field Validators
Added by tm_jee, last edited by Ted Husted on Sep 10, 2006  (view change)

Description

The followings show a simple example using Webwork's Non Field Validators

Step 1

Create the jsp page

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<s:actionerror />
    
<s:form method="POST" action="submitNonFieldValidatorsExamples" namespace="/validation">
    <s:textfield name="someText" label="Some Text" />
    <s:textfield name="someTextRetype" label="Retype Some Text" />  
    <s:textfield name="someTextRetypeAgain" label="Retype Some Text Again" />
    <s:submit label="Submit" />
</s:form>

Step 2

Create the action class

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public class NonFieldValidatorsExampleAction extends AbstractValidationActionSupport {
	
	private static final long serialVersionUID = -524460368233581186L;
	
	private String someText;
	private String someTextRetype;
	private String someTextRetypeAgain;
	
	public String getSomeText() {
		return someText;
	}
	public void setSomeText(String someText) {
		this.someText = someText;
	}
	public String getSomeTextRetype() {
		return someTextRetype;
	}
	public void setSomeTextRetype(String someTextRetype) {
		this.someTextRetype = someTextRetype;
	}
	public String getSomeTextRetypeAgain() {
		return someTextRetypeAgain;
	}
	public void setSomeTextRetypeAgain(String someTextRetypeAgain) {
		this.someTextRetypeAgain = someTextRetypeAgain;
	}
}

Step 3

Create the validator.xml.

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<validators>
	<validator type="expression">
		<param name="expression"><![CDATA[ ( (someText == someTextRetype) && (someTextRetype == someTextRetypeAgain) ) ]]></param>
		<message><![CDATA[ all three text must be exactly the same ]]></message>
	</validator>
</validators>