ADF11g-040：ADF中擷取context param

通過以下代碼可以擷取web.xml中配置的Context Parameter

FacesContext fctx = FacesContext.getCurrentInstance();
ExternalContext ectx = fctx.getExternalContext();
ServletContext servletContext = (ServletContext) ectx.getContext();
String param1 = (String)servletCtx.getInitParameter("contextparam1");
           

如果想使用EL表達式則使用

#{initParam.contextparam1}
           

或者(參數中帶"."号)

#{initParam['contextparam1']}
           

附web.xml

<context-param>
  <param-name>contextparam1</param-name>
  <param-value>value1</param-value>
</context-param>