使用 WebSphere Application Server V6.1 中的 Struts Tiles 和 Portlet Framework 快速实现门户外观

<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
<%@ taglib uri="http://ibm.com/portlet/aggregation" prefix="portlet" %>
<%@ page import="java.util.*" %>
<%@ page import="com.jktelecom.*" %>
<%@ page isELIgnored ="false" %>
<%
   String page_uri = (String)session.getAttribute("Current_Page");
   String uri_prefix = PageInfo.getPageName(page_uri) +"/";
%>
<portlet:init portletURLPrefix="<%=uri_prefix%>" >
<tiles:importAttribute />
 <table border="1">  
  <%-- Prepare the links list to be iterated --%>
   <bean:define id="portlets" name="portlets" type="java.util.List" />
   <bean:define id="numColumns" name="numColumns" type="java.lang.String" />
  <%
    int cols = Integer.parseInt(numColumns);
    Iterator loop = portlets.iterator();    
    int portlet_count = 0;
    while (loop.hasNext()) {  
  %>
      <!-- create portal table with number columns defined by variable cols -->
      <tr bgcolor="#e0eaf8">
      <%
        String[] portRefs = new String[cols];  
        for (int i=0; i < cols; i++)  {
          if (!loop.hasNext()) {
          break;
			
          }         
          PortletInfo portletInfo = (PortletInfo)loop.next();          
          portRefs[i] = portletInfo.getName();
          String windowId = String.valueOf(portlet_count);
      %>
          <!-- insert portlet title bar -->
          <td>
            <table width="100%">
              <tr>
                <td>
                  <b><span id="title_<%=portlet_count%>">Portlet <%=
                  portlet_count%></span></b>
                </td>
                <td align="right">
                <%
                  String portletName = portletInfo.getName();
                  String[] portletModes = portletInfo.getSupportedModes(portletName);
                  for (int j=0; j < portletModes.length; j++ )  {
                    %> 
                      <a href="<portlet:state url='<%=portletName%>' 
                      windowId='<%=windowId%>'
                      portletMode='<%=portletModes[j]%>' />">
                      <%=portletModes[j]%> </a>
                      <%
                    }
                   %>           
                &nbsp; &nbsp;
               </td>
			  </tr>
            </table>
          </td>         
      <%
           portlet_count++;
        }
      %>        
     </tr>
     <tr>
      <%
         for (int k=0; k < cols; k++)  {
           int title_num = portlet_count-cols+k;
           String windowId = String.valueOf(title_num);
      %> 
          <td>
            <!-- insert portlet -->
            <portlet:insert url="<%=portRefs[k]%>" windowId="<%=windowId%>" 
              titleVar="title" />
          </td>          
          <!-- insert portlet title -->          
          <script type="text/javascript">
   document.getElementById("title_<%=title_num%>").firstChild.nodeValue = "${title}";
          </script>
      <%
        }     
      %>     
     </tr>
     <tr><td colspan="<%=cols%>">&nbsp;</td></tr>
  <%
   }
  %>   
 </table>
</portlet:init>

<supports>
	<mime-type>text/html</mime-type>
	<portlet-mode>config</portlet-mode>
	<portlet-mode>edit</portlet-mode>
	<portlet-mode>help</portlet-mode> 
</supports>

static HashMap supportedModes;
static {
	supportedModes = new HashMap();
	supportedModes.put("IBMSamples/HelloWorld", new String[]{"view"});
	supportedModes.put("IBMSamples/WorldClock", new String[]{"view", "edit", "help"});
	supportedModes.put("IBMSamples/SQLQuery", new String[]{"view"});    
	supportedModes.put("IBMSamples/HelloJSP", new String[]{"view"});
	supportedModes.put("SunSamples/JSPPortlet", new String[]{"edit", "help"});
	supportedModes.put("SunSamples/NotepadPortlet", new String[]{"edit", "help"});
	supportedModes.put("SunSamples/BookmarkPortlet", new String[]{"edit", "help"}); 
}
public String[] getSupportedModes(String portletName) {
	return (String[])supportedModes.get(portletName);
}

<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<logic:notPresent name="pageLayoutDef" scope="request" >
 <tiles:definition id="pageLayoutDef" page="/pageLayout.jsp" scope="request" >
  <tiles:put name="title" type="string" value="jkTelecom Portal" /> 
  <tiles:put name="header" value="/header.jsp" />
  <tiles:put name="footer" value="/footer.jsp" />
  <tiles:put name="body" value="/default_body.jsp" />   
  <tiles:put name="menu" value="/default_menu.jsp" />                
 </tiles:definition>
</logic:notPresent>

<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
<%
	String current_page = "tools.jsp";   
	session.setAttribute("Current_Page", current_page);
%>
<jsp:include page="/pageLayoutDef.jsp" />
<tiles:insert beanName="pageLayoutDef" flush="true" beanScope="request">
	<tiles:put name="body" value="/portlets.jsp" />  
	<tiles:put name="menu" value="/menu.jsp" />
</tiles:insert>

<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
<tiles:importAttribute />
<tiles:insert page="/menuLayout.jsp" flush="false" > 

   <tiles:putList name="items" >
    <jsp:useBean id="item_0" class="org.apache.struts.tiles.beans.SimpleMenuItem" />
    <jsp:setProperty name="item_0" property="link" value="index.jsp" />
    <jsp:setProperty name="item_0" property="value" value="Home" />               
    <tiles:add beanName="item_0" />
	...	
<%
	if (request.isUserInRole("Managers")){
%>    
	<jsp:useBean id="item_4" class="org.apache.struts.tiles.beans.SimpleMenuItem" />
	<jsp:setProperty name="item_4" property="link" value="tools.jsp" />
	<jsp:setProperty name="item_4" property="value" value="Tools" />
    <tiles:add beanName="item_4" />
        ...	  
   <%

	} else if (request.isUserInRole("Users"))  {  
%>   
	<jsp:useBean id="item_8" class="org.apache.struts.tiles.beans.SimpleMenuItem" />
	<jsp:setProperty name="item_8" property="link" value="services.jsp" />
	<jsp:setProperty name="item_8" property="value" value="Services" /> 
	<tiles:add beanName="item_8" />
	  ...			
   <%
	}			
   %> 
  </tiles:putList> 
</tiles:insert>
			

<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
<%@ page import="java.util.*" %>
<%@ page import="com.jktelecom.*" %>
<tiles:insert page="/portletLayout.jsp" flush="false" >    
    <!-- create portal table of two columns -->
<%
    if (request.isUserInRole("Managers"))  {
%> 
      <tiles:put name="numColumns" value="3" />
<%
    } else {
%>    
         <tiles:put name="numColumns" value="2" />
<%
    }
%>         
    <!-- pass portlet links -->   
    <tiles:putList name="portlets" >
       <jsp:useBean id="portlet_0" class="com.jktelecom.PortletInfo" />
       <jsp:setProperty name="portlet_0" property="name" 
         value="IBMSamples/HelloWorld" />
       <jsp:setProperty name="portlet_0" property="initialMode" 
         value="<%=PortletInfo.VIEW%>" />
       <tiles:add beanName="portlet_0" />      
    <%
      if (request.isUserInRole("Managers"))  {
    %>     
         <jsp:useBean id="portlet_1" class="com.jktelecom.PortletInfo" />
         <jsp:setProperty name="portlet_1" property="name" 
           value="SunSamples/JSPPortlet" />
         <jsp:setProperty name="portlet_1" property="initialMode" 
           value="<%=PortletInfo.EDIT%>" />
         <tiles:add beanName="portlet_1" />
         …
    <%
      } else if (request.isUserInRole("Users"))  {      
    %>
         <jsp:useBean id="portlet_6" class="com.jktelecom.PortletInfo" />
         <jsp:setProperty name="portlet_6" property="name" 
           value="IBMSamples/WorldClock" />
         <jsp:setProperty name="portlet_6" property="initialMode" 
           value="<%=PortletInfo.VIEW%>" />
         <tiles:add beanName="portlet_6" />
         …
    <%
      }
%>              
     </tiles:putList>       
</tiles:insert>

…
<servlet>			
    <servlet-name>Home</servlet-name>
    <jsp-file>index.jsp</jsp-file>
</servlet>
<servlet>			
    <servlet-name>Tools</servlet-name>
    <jsp-file>tools.jsp</jsp-file>
</servlet>
…
<servlet-mapping>
   <servlet-name>Home</servlet-name>
   <url-pattern>/Home/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
   <servlet-name>Tools</servlet-name>
   <url-pattern>/Tools/*</url-pattern>
</servlet-mapping>
…