Validation in JSF
Question
I'm trying to implement the Validation of a form but it don't accept when I fill in numbers or characters.
This is my login.xhtml
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:c="http://xmlns.jcp.org/jsp/jstl/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:f="http://xmlns.jcp.org/jsf/core">
<h:body>
<ui:composition template="./templates/template.xhtml">
<ui:define name="content">
<p><h:link outcome="/index" value="To Home Page" /></p>
<h:form>
Username: <h:inputText id="username" value="#{user.name}" required="true" requiredMessage="username name is required"><f:validator validatorId="usernameValidator" /></h:inputText><br/>
Password: <h:inputText id="password" value="#{user.password}" required="true" requiredMessage="password is required"><f:validator validatorId="passwordValidator" /></h:inputText><br/>
Email: <h:inputText id="Email" value="#{user.email}" required="true" requiredMessage="email is required"><f:validator validatorId="emailValidator" /></h:inputText>
<h:commandButton id="cBtn2" value="Submit" action="home"/>
</h:form>
</ui:define>
</ui:composition>
</h:body>
</html>
And my validation class:
package Validation;
import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;
public class PasswordValidator implements Validator{
@Override
public void validate(FacesContext context, UIComponent component, Object value)
throws ValidatorException {
String password = (String) value;
if(!password.contains("([1-9]/[A-Z]-[1-9]-[1-9]-[1-9](-[1-9])?")) {
FacesMessage message = new FacesMessage();
message.setSeverity(FacesMessage.SEVERITY_ERROR);
message.setSummary("Value you entered is not valid - Please enter a value which contains only [1-9]/[A-Z].");
message.setDetail("Value you entered is not valid - Please enter a value which contains only [1-9]/[A-Z].");
context.addMessage("userForm:Password", message);
throw new ValidatorException(message);
}
}
}
Anyone know why it don't accept this when I fill in admin?
1 answers
solution1
0 ACCPTED 2015-06-19 20:10:48
String.contains does not take a regular expression; try String.matches instead.
For a regex that only matches numbers and characters, try ^\\w+$ . This basically says, "match the start of the string, then at least one 'word' character (which is a number or a letter), then match the end of the string".
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