CODEWITHSUNDEEP
jsfjsf-2validation
Aram Gevorgyan
Aram Gevorgyan

Reputation: 2205

JSF multiple field validation NULLPointerException

<h:form id="form">
Username: <br/>
<h:inputText id="username" value="#{home.username}" required="true" >
<f:validator validatorId="loginValidator"></f:validator> 
<f:attribute name="passwordComponent" value="#{passwordComponent}" ></f:attribute>
</h:inputText>
<br/>
Password: <br />
<h:inputText id="password"  bindig="#{passwordComponent}" value="#{home.password}"  required="true"></h:inputText>
<br/>
<h:commandButton value="login" id="login" action="#{home.login}"></h:commandButton>
</h:form>



public class LoginValidator implements Validator {

@Override
public void validate(FacesContext context, UIComponent component, Object value)
        throws ValidatorException {
    String username = (String)value;
    UIInput passwordInput = (UIInput)component.getAttributes().get("passwordComponent");
    String password = (String) passwordInput.getValue();

    if(username!="aa" || password!="aa"){
        passwordInput.setValid(false);
        throw new ValidatorException(new FacesMessage("Wrong username or password!"));
    }
}

}

at this line I get NuulPointerException:

String password = (String) passwordInput.getValue();

Why?

Upvotes: 1

Views: 552

Answers (1)

prageeth
prageeth

Reputation: 7395

Spellings of the word "binding" is incorrect in following line.

<h:inputText id="password"  bindig="#{passwordComponent}"...

change bindig to binding.

Upvotes: 2

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