Description
The following are the steps to configure a basic validation using Webwork.
Step 1:
Write up a html form.
<html>
<head>
<title>Validation - Basic</title>
<ww:head/>
</head>
<body>
<p/>
<p>
The following form uses labelposition="left"
<ww:form id="f0" method="post" labelposition="left">
<ww:textfield label="Name" name="name" labelposition="left"/>
<ww:textfield label="Age" name="age" labelposition="left"/>
<ww:textfield label="Favorite color" name="answer" labelposition="left"/>
<ww:submit/>
</ww:form>
</p>
<p>
The following form uses labelposition="top"
<ww:form id="f1" method="post" labelposition="top">
<ww:textfield label="Name" name="name" labelposition="top"/>
<ww:textfield label="Age" name="age" labelposition="top"/>
<ww:textfield label="Favorite color" name="answer" labelposition="top"/>
<ww:submit/>
</ww:form>
</p>
</body>
</html>
Step 2:
Write up the action class. Get methods must be supplied for validation to work.
public class QuizAction extends ActionSupport {
int minAge = 13;
int maxAge = 19;
String name;
int age;
String answer;
public int getMinAge() {
return minAge;
}
public void setMinAge(int minAge) {
this.minAge = minAge;
}
public int getMaxAge() {
return maxAge;
}
public void setMaxAge(int maxAge) {
this.maxAge = maxAge;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getAnswer() {
return answer;
}
public void setAnswer(String answer) {
this.answer = answer;
}
}
Step3:
Write up the validators to be used. The validation.xml format is either <ActionClassName>-validation.xml or <ActionClassName>-<ActionContextName>-validation.xml
<!--
Add the following DOCTYPE declaration as first line of your XXX-validation.xml file:
<!DOCTYPE validators PUBLIC
"-//OpenSymphony Group//XWork Validator 1.0.3//EN"
"http://www.opensymphony.com/xwork/xwork-validator-1.0.3.dtd">
-->
<validators>
<field name="name">
<field-validator type="requiredstring">
<message key="validation.name.required" />
</field-validator>
</field>
<field name="age">
<field-validator type="int">
<param name="min">10</param>
<param name="max">19</param>
<message key="validation.age.invalid">
<param name="0">'Contestant'</param>
<param name="1">minAge</param>
<param name="2">maxAge</param>
<param name="defaultMessage">Your age, its invalid</param>
</message>
</field-validator>
</field>
</validators>
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