Backing Bean

      import javax.faces.component.UIInput;
import javax.faces.component.UIOutput;

public class BackingBean
{

    private UIOutput idComponent;

    public UIOutput getIdComponent()
    {
        return idComponent;
    }

    public void setIdComponent(UIOutput idComponent)
    {
        this.idComponent = idComponent;
    }


}
    

頁面到Bean的參數傳遞
頁面中設置參數：

      <h:form>
			<h:inputHidden value="123456" binding="#{backingBean.idComponent}"></h:inputHidden>
			<h:commandButton value="登錄" action="#{paramBean.login}"></h:commandButton>
		</h:form>
    

后臺取參數：

      FacesContext context = FacesContext.getCurrentInstance();
        BackingBean backBean =(BackingBean)context.getApplication().getVariableResolver().resolveVariable(context,"backingBean");//該方法已經過時
        BackingBean bean =(BackingBean)context.getApplication().getELResolver().getValue(context.getELContext(), null, "backingBean");
        backBean.getIdComponent().getValue();
        bean.getIdComponent().getValue();
    

2.2頁面到頁面的參數傳遞
頁面中設置參數：

      <h:form>
		<h:inputHidden value="123456" 			binding="#{backingBean.idComponent}"></h:inputHidden>
		<h:commandButton value="Test5" 	action="param"></h:commandButton>
		<h:commandLink value="Test6" action="param"></h:commandLink>
	</h:form>
    

注意：h:outputLink 標簽不能使用該方式傳遞參數！
頁面中取參數：