JSF参数传递--richfaces

参考：http://pity1115.iteye.com/blog/336431

f:param标签

      页面代码:       

 

<h:commandLink value="Test2" action="#{paramBean.test}">
 	<f:param name="name" value="zhang"></f:param>
 	<f:param name="id" value="123456"></f:param>
 </h:commandLink>

    后台取参方法：

 

//通过Request对象取值 
HttpServletRequest request = (HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest();
 request.getParameter("name"); 

 

//通过RequestParameterMap取值 
Map varMap = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap(); 
varMap.get("id"); 

 f:attribute标签传递

页面代码：

 

<h:commandButton action="#{paramBean.test3}" value="Test11" actionListener="#{paramBean.changeName}">
 	<f:attribute name="name" value="hujilie"/> 
</h:commandButton> 

  后台取参方法：

 

UIComponent component = e.getComponent(); 
Map<String, Object> map = component.getAttributes(); 
Object nameValue = map.get("name");

 

 

 

f:setPropertyActionListener 标签传递

页面代码：

 

 

 

<h:commandButton action="#{projectBean.searchProject}" value="show project"> 
          <f:setPropertyActionListener value="peter" target="#{projectBean.name}"/> 
</h:commandButton> 

 

 

 

  

后台取参方法：JSF自动完成对属性的赋值；直接使用name属性

 

findProject(name);

  facelets标签：ui:param

可在页面之间传递任意java object（managed Bean）

页面代码：

 

<ui:include src="/pages/contents/process/processDefHead.xhtml" > 
	<ui:param name="piMgtBean" value="#{processInstanceMgtBean}" /> 
</ui:include>

 

 richfaces标签：a4j:actionparam

JSF自动完成对属性的赋值；直接使用name属性（限定类型为String）

 

<a4j:commandButton value="Set Name to Alex" reRender="rep" > 
	<a4j:actionparam name="username" value="Alex" assignTo="#{userBean.name}"/> 
</a4j:commandButton>