我正在尝试使用JSF验证两个密码字段,但直到现在都没有好处,我在google上搜索它,但是一切都是关于JSF 1.2,令人困惑的是,我使用的是JSF 2.0.
这是我到目前为止所做的
<h:outputLabel for="password" value="Password:" />
<h:inputSecret id="password" value="#{register.user.password}" >
<f:ajax event="blur" listener="#{register.validatePassword}" render="m_password" />
</h:inputSecret>
<rich:message id="m_password" for="password"/>
<h:outputLabel for="password_2" value="Password (again):" />
<h:inputSecret id="password_2" value="#{register.user.password_2}" >
<f:ajax event="blur" listener="#{register.validatePassword}" />
</h:inputSecret>
这是我的控制器：
public void validatePassword() {
FacesMessage message;
if (!user.getpassword().equals(user.getpassword_2()) ){
message = new FacesMessage(FacesMessage.SEVERITY_ERROR,null,"different password");
}else{
message = new FacesMessage(FacesMessage.SEVERITY_INFO,"ok");
}
FacesContext.getCurrentInstance().addMessage("form:password",message);
}
任何想法家伙？
首先,使用真实的
Validator验证输入.不要在动作事件方法中执行.
对于你的具体问题,你只需要指定< f：ajax>的执行属性中的两个字段,它只默认为当前组件.如果您将验证器附加到第一个输入,并将第二个输入的值作为< f：attribute> ;.发送,那么您将能够在验证器中抓取它.您可以使用binding属性将组件绑定到视图.这样,您可以将其提交的价值通过UIInput#getSubmittedValue().
这是一个开球示例：
<h:outputLabel for="password" value="Password:" />
<h:inputSecret id="password" value="#{bean.password}" required="true">
<f:validator validatorId="confirmPasswordValidator" />
<f:attribute name="confirm" value="#{confirmPassword.submittedValue}" />
<f:ajax event="blur" execute="password confirm" render="m_password" />
</h:inputSecret>
<h:message id="m_password" for="password" />
<h:outputLabel for="confirm" value="Password (again):" />
<h:inputSecret id="confirm" binding="#{confirmPassword}" required="true">
<f:ajax event="blur" execute="password confirm" render="m_password m_confirm" />
</h:inputSecret>
<h:message id="m_confirm" for="confirm" />
(请注意,我将两个组件都添加了required =“true”,并且还注意到,您不一定需要将确认密码组件值绑定到托管bean属性,因此无论如何)
与此验证器
@FacesValidator("confirmPasswordValidator")
public class ConfirmPasswordValidator implements Validator {
@Override
public void validate(FacesContext context,UIComponent component,Object value) throws ValidatorException {
String password = (String) value;
String confirm = (String) component.getAttributes().get("confirm");
if (password == null || confirm == null) {
return; // Just ignore and let required="true" do its job.
}
if (!password.equals(confirm)) {
throw new ValidatorException(new FacesMessage("Passwords are not equal."));
}
}
}