mbean dump jsp

忘是亡心i 2023-10-05 15:18 13阅读 0赞

<%@ page import="java.io.*" %>
    <%@ page import="java.util.*" %>
    <%@ page import="java.lang.management.*" %>
    <%@ page import="javax.management.*" %>
    
    
    
    <%!
        private static void spillTheBeans(final Writer out) throws Exception {
            final PrintWriter os = new PrintWriter(out);
            os.println("<table border=1>");
    
            final List<MBeanServer> servers = new LinkedList<MBeanServer>();
            servers.add(ManagementFactory.getPlatformMBeanServer());
            servers.addAll(MBeanServerFactory.findMBeanServer(null));
            for (final MBeanServer server : servers) {
                os.println("  <tr><td colspan='4'> </td></tr>");
                os.println("  <tr><td>Server:</td><td colspan='3'>"
                        + server.getClass().getName() + "</td></tr>");
    
                final Set<ObjectName> mbeans = new HashSet<ObjectName>();
                mbeans.addAll(server.queryNames(null, null));
                for (final ObjectName mbean : mbeans) {
                    os.println("  <tr><td colspan='4'> </td></tr>");
                    os.println("  <tr><td>MBean:</td><td colspan='3'>" + mbean
                            + "</td></tr>");
    
                    final MBeanAttributeInfo[] attributes = server.getMBeanInfo(
                            mbean).getAttributes();
                    for (final MBeanAttributeInfo attribute : attributes) {
                        os.print("  <tr><td> </td><td>" + attribute.getName()
                                + "</td><td>" + attribute.getType() + "</td><td>");
    
                        try {
                            final Object value = server.getAttribute(mbean,
                                    attribute.getName());
                            if (value == null) {
                                os.print("<font color='#660000'>null</font>");
                            } else {
                                os.print(value.toString());
                            }
                        } catch (Exception e) {
                            os.print("<font color='#990000'>" + e.getMessage()
                                    + "</font>");
                        }
    
                        os.println("</td></tr>");
                    }
                }
            }
    
            os.println("</table>");
            os.flush();
        }
    %>
    
    <html>
      <head><title>Spill the Beans -- JMX Mbean Listing</title></head>
      <body>
        <% spillTheBeans(out); %>
      </body>
    </body>

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