h:selectOneMenu onchange ="submit()"immediate ="true"不会跳过其他输入的验证

<h:inputText id="inputText" value="#{bean.inputText}" required="true">
    <f:validateRegex pattern="^[a-zA-Z0-9]*$" />
</h:inputText>

<h:inputText id="inputText" value="#{bean.inputText}" required="true">
    <f:validator validatorId="customValidator" />
</h:inputText>

public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException {
    String inputText = (String) value;
    if (!inputText.matches("^[a-zA-Z0-9]*$")) {
        FacesMessage message = new FacesMessage("Invalid input");
        throw new ValidatorException(message);
    }
}

<h:inputText id="inputText" value="#{bean.inputText}" required="true">
    <f:ajax event="change" execute="@this" render="outputText" />
</h:inputText>