日期:2014-05-16  浏览次数:20381 次

JSF参数传递--richfaces

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

f:param标签

??????页面代码:???????

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<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:

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//通过Request对象取值

HttpServletRequest request = (HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest();

request.getParameter("name");

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//通过RequestParameterMap取值

Map varMap = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();

varMap.get("id");

?f:attribute标签传递

页面代码:

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<h:commandButton action="#{paramBean.test3}" value="Test11" actionListener="#{paramBean.changeName}">

<f:attribute name="name" value="hujilie"/>

</h:commandButton>

? 后台取参方法:

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

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f:setPropertyActionListener 标签传递

页面代码:

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

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后台取参方法:JSF自动完成对属性的赋值;直接使用name属性

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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:

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<ui:include src="/pages/contents/process/processDefHead.xhtml" >

<ui:param name="piMgtBean" value="#{processInstanceMgtBean}" />

</ui:include>

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?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)

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<a4j:commandButton value="Set Name to Alex" reRender="rep" >

<a4j:actionparam name="username" value="Alex" assignTo="#{userBean.name}"/>

</a4j:commandButton>

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