将输入文本值传递给bean方法，而无需将输入值绑定到bean属性 [英] Pass input text value to bean method without binding input value to bean property

问题描述

是否可以将输入文本字段值传递给bean方法，而无需将该值绑定到bean属性?

Can I pass a input text field value to a bean method without binding the value to a bean property?

<h:inputText value="#{myBean.myProperty}" />
<h:commandButton value="Test" action="#{myBean.execute()} />

是否可以在不做#{myBean.myProperty}临时保存的情况下执行此操作?

Can I do this without doing temporary save in #{myBean.myProperty}?

推荐答案

将该组件绑定为

Bind the component as UIInput to the view and use UIInput#getValue() to pass its value as method argument.

<h:inputText binding="#{input1}" />
<h:commandButton value="Test" action="#{myBean.execute(input1.value)}" />

使用

public void execute(String value) {
    // ...
}

请注意，该值已经通过这种方式转换并验证了通常的JSF方式.

Note that the value is this way already converted and validated the usual JSF way.

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