📄 jcsadmin.jsp

📁 这是论坛原代码,希望大家能好好看看,说明需要的太多了吧
💻 JSP
字号:
<%@ page import="java.util.HashMap"%>
<%@ page import="java.util.List"%>
<%@ page import="java.util.LinkedList"%>
<%@ page import="java.util.Iterator"%>

<%@ page import="org.apache.jcs.admin.*"%>


<jsp:useBean id="jcsBean" scope="request"
	class="org.apache.jcs.admin.JCSAdminBean" />

<html>

<head>
<title>JCS Admin Servlet</title>
</head>

<body>


<%String CACHE_NAME_PARAM = "cacheName";
            String ACTION_PARAM = "action";
            String CLEAR_ALL_REGIONS_ACTION = "clearAllRegions";
            String CLEAR_REGION_ACTION = "clearRegion";
            String REMOVE_ACTION = "remove";
            String DETAIL_ACTION = "detail";
            String KEY_PARAM = "key";
            String SILENT_PARAM = "silent";

            String DEFAULT_TEMPLATE_NAME = "DEFAULT";
            String REGION_DETAIL_TEMPLATE_NAME = "DETAIL";

            String templateName = DEFAULT_TEMPLATE_NAME;

            HashMap context = new HashMap();

            // Get cacheName for actions from request (might be null)
            String cacheName = request.getParameter( CACHE_NAME_PARAM );

            // If an action was provided, handle it
            String action = request.getParameter( ACTION_PARAM );

            if ( action != null )
            {
                if ( action.equals( CLEAR_ALL_REGIONS_ACTION ) )
                {
                    jcsBean.clearAllRegions();
                }
                else if ( action.equals( CLEAR_REGION_ACTION ) )
                {
                    if ( cacheName == null )
                    {
                        // Not Allowed
                    }
                    else
                    {
                        jcsBean.clearRegion( cacheName );
                    }
                }
                else if ( action.equals( REMOVE_ACTION ) )
                {
                    String[] keys = request.getParameterValues( KEY_PARAM );

                    for ( int i = 0; i < keys.length; i++ )
                    {
                        jcsBean.removeItem( cacheName, keys[i] );
                    }

                    templateName = REGION_DETAIL_TEMPLATE_NAME;
                }
                else if ( action.equals( DETAIL_ACTION ) )
                {
                    templateName = REGION_DETAIL_TEMPLATE_NAME;
                }
            }

            if ( request.getParameter( SILENT_PARAM ) != null )
            {
                // If silent parameter was passed, no output should be produced.

                //return null;
            }
            else
            {
                // Populate the context based on the template

                if ( templateName == REGION_DETAIL_TEMPLATE_NAME )
                {
                    //context.put( "cacheName", cacheName );
                    context.put( "elementInfoRecords", jcsBean.buildElementInfo( cacheName ) );
                }
                else if ( templateName == DEFAULT_TEMPLATE_NAME )
                {
                    context.put( "cacheInfoRecords", jcsBean.buildCacheInfo() );
                }

            }

            //handle display
            if ( templateName == REGION_DETAIL_TEMPLATE_NAME )
            {

                %>

<h1>Keys for region: $cacheName</h1>

<table border="1" cellpadding="5">
	<tr>
		<th>Key</th>
		<th>Eternal?</th>
		<th>Create time</th>
		<th>Max Life (s)</th>
		<th>Till Expiration (s)</th>
	</tr>
	<%List list = (List) context.get( "elementInfoRecords" );
                Iterator it = list.iterator();
                while ( it.hasNext() )
                {
                    CacheElementInfo element = (CacheElementInfo) it.next();

                    %>
	<tr>
		<td><%=element.getKey()%></td>
		<td><%=element.isEternal()%></td>
		<td><%=element.getCreateTime()%></td>
		<td><%=element.getMaxLifeSeconds()%></td>
		<td><%=element.getExpiresInSeconds()%></td>
		<td><a
			href="">
		Remove </a></td>
	</tr>

	<%}

            }
            else
            {

                %>

	<h1>Cache Regions</h1>

	<p>These are the regions which are currently defined in the cache.
	'Items' and 'Bytes' refer to the elements currently in memory (not
	spooled). You can clear all items for a region by selecting 'Remove
	all' next to the desired region below. You can also <a
		href="">Clear all regions</a> which empties the
	entire cache.</p>

	<table border="1" cellpadding="5">
		<tr>
			<th>Cache Name</th>
			<th>Items</th>
			<th>Bytes</th>
			<th>Status</th>
			<th>Memory Hits</th>
			<th>Aux Hits</th>
			<th>Not Found Misses</th>
			<th>Expired Misses</th>
		</tr>

		<%List list = (List) context.get( "cacheInfoRecords" );
                Iterator it = list.iterator();
                while ( it.hasNext() )
                {
                    CacheRegionInfo record = (CacheRegionInfo) it.next();

                    %>
		<tr>
			<td><%=record.getCache().getCacheName()%></td>
			<td><%=record.getCache().getSize()%></td>
			<td><%=record.getByteCount()%></td>
			<td><%=record.getStatus()%></td>
			<td><%=record.getCache().getHitCountRam()%></td>
			<td><%=record.getCache().getHitCountAux()%></td>
			<td><%=record.getCache().getMissCountNotFound()%></td>
			<td><%=record.getCache().getMissCountExpired()%></td>
			<td><a
				href="">
			Detail </a> | <a
				href="">
			Remove all </a></td>
		</tr>
		<%}

            }

        %>

	</table>
</body>

</html>
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