Question

Hope you all will be fine. The scenerio is I have a form on which there is name inputText field. I want that if user type in the name then it is replaced by //. I have made the replace function. But I don t know that how can I do it using ajax. Like if I have input field like this

<h:inputText id="name" value="#{user.name}">
    <f:ajax event="blur" render="nameError name"/>
</h:inputText>
<h:message for="name" id="nameError" style="color: red" />

现在我想,如果用户类型<代码> Basit Mahmood Ahmed ,在名称栏目中,数值为<>/Basit/Mahmood/Ahmed/。因此,当用户在提交年份时,//Basit/Mahmood/Ahmed/ 应张贴在服务器上,而不是<代码>。 Basit Mahmood Ahmed 。

我如何在2.0号联合论坛中这样做?

Answer 1

你们需要创建转换器。

E.g.

@FacesConverter("userNameConverter")
public class UserNameConverter implements Converter {

    @Override
    public String getAsString(FacesContext context, UIComponent component, Object value) {
        return (String) value;
    }

    @Override
    public Object getAsObject(FacesContext context, UIComponent component, String value) {
        return (value != null) ? value.replaceAll(" ", "//") : null;
    }

}

iii

<h:inputText id="name" value="#{user.name}" converter="userNameConverter">

getAsObject(>将在验证阶段运行,并在更新模型值之前完成所期望的转换,并且重新提出这一看法。

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