监控tomcat内存使用情况的jsp代码

如下代码可以监控tomcat中jvm不同代的内存使用情况：

<%@ page import="java.lang.management.*" %>
<%@ page import="java.util.*" %>
<html>
<head>
  <title>JVM Memory Monitor</title>
</head>

<body>
<%
        Iterator iter = ManagementFactory.getMemoryPoolMXBeans().iterator();
        while (iter.hasNext()) {
            MemoryPoolMXBean item = (MemoryPoolMXBean) iter.next();
%>

<table border="0" width="100%">
<tr><td colspan="2" align="center"><h3>Memory MXBean</h3></td></tr>
<tr><td width="200">Heap Memory Usage</td><td>
<%=ManagementFactory.getMemoryMXBean().getHeapMemoryUsage()%>
</td></tr>

<tr>
  <td>Non-Heap Memory Usage</td>
  <td><%=ManagementFactory.getMemoryMXBean().getNonHeapMemoryUsage()%></td>
</tr>
<tr><td colspan="2"> </td></tr>
<tr><td colspan="2" align="center"><h3>Memory Pool MXBeans</h3></td></tr>
<%
        Iterator iter = ManagementFactory.getMemoryPoolMXBeans().iterator();
        while (iter.hasNext()) {
            MemoryPoolMXBean item = (MemoryPoolMXBean) iter.next();
%>
<tr><td colspan="2">
<table border="0" width="100%" style="border: 1px #98AAB1 solid;">
<tr><td colspan="2" align="center"><b><%= item.getName() %></b></td></tr>
<tr><td width="200">Type</td><td><%= item.getType() %></td></tr>
<tr><td>Usage</td><td><%= item.getUsage() %></td></tr>
<tr><td>Peak Usage</td><td><%= item.getPeakUsage() %></td></tr>
<tr><td>Collection Usage</td><td><%= item.getCollectionUsage() %></td></tr>
</table>
</td></tr>
<tr><td colspan="2"> </td></tr>
<%
}
%>

</table>
</body>
</html>

(责任编辑：IT)

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监控tomcat内存使用情况的jsp代码