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<%@ page language="java" contentType="text/html; charset=UTF-8" |
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pageEncoding="UTF-8"%> |
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<%@ page import="com.sun.management.*" %> |
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<%@ page import="java.lang.management.ManagementFactory" %> |
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<%@ page import="java.io.*" %> |
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
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<html> |
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<head> |
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
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<style type="text/css"> |
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h2 { |
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text-align: center; |
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} |
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table{ |
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text-align: center; |
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margin-left: auto; |
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margin-right: auto; |
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border: 1px solid #000000; |
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width: 400px; |
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border-spacing: 0px; |
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} |
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td { |
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border: 1px solid #000000; |
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} |
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p { |
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text-align: center; |
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} |
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</style> |
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<title>JSPSysInfo</title> |
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</head> |
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<body> |
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<% |
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OperatingSystemMXBean mxbean = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean(); |
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long mb = 1024*1024; |
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Runtime rt = Runtime.getRuntime(); |
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%> |
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<h2>Java</h2> |
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<p><%= System.getProperty("java.runtime.name") + " version " + System.getProperty("java.runtime.version") + System.getProperty("java.vm.version") + " by " + System.getProperty("java.vm.vendor") %><br> |
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Server: <%= getServletContext().getServerInfo() %><br> |
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JVM Memory, free:<%= rt.freeMemory()/mb %>, total:<%= rt.totalMemory()/mb %>, max:<%= rt.maxMemory()/mb %> |
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</p> |
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<h2>OS</h2> |
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<p> |
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<%= System.getProperty("os.name") + " Version " + System.getProperty("os.version") + " on " + System.getProperty("os.arch") + " architechture"%> |
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</p> |
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<h2>CPU</h2> |
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<table> |
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<tr><td width="100">CPUs</td><td> <%= mxbean.getAvailableProcessors() %></td></tr> |
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<tr><td>Load avg.</td><td> <%= mxbean.getSystemLoadAverage() %></td></tr> |
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<!-- <tr><td>JVM CPU</td><td> <%= mxbean.getProcessCpuTime()/1000 %>msec</td></tr> --> |
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</table> |
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<h2>Memory</h2> |
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<table> |
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<tr><td width="100"> </td><td>Free</td><td>Total</td></tr> |
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<tr><td>Physical</td><td><%= mxbean.getFreePhysicalMemorySize()/mb %></td><td><%= mxbean.getTotalPhysicalMemorySize()/mb %></td></tr> |
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<tr><td>Swap</td><td><%= mxbean.getFreeSwapSpaceSize()/mb %></td><td><%= mxbean.getTotalSwapSpaceSize()/mb %></td></tr> |
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<tr><td>Commit</td><td colspan="2"><%= mxbean.getCommittedVirtualMemorySize()/mb %></td></tr> |
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</table> |
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<p>All numbers in MB</p> |
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<h2>File system</h2> |
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<table> |
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<tr> |
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<td width="100"> </td> |
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<td>Total</td> |
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<td>Free</td> |
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<td>Usable</td> |
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</tr> |
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<% |
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for (File fs : File.listRoots() ) { |
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%> |
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<tr> |
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<td><%= fs.getAbsolutePath() %></td> |
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<td><%= fs.getTotalSpace()/mb %></td> |
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<td><%= fs.getFreeSpace()/mb %></td> |
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<td><%= fs.getUsableSpace()/mb %></td> |
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</tr> |
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<%} %> |
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</table> |
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<p>All numbers in MB</p> |
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</body> |
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</html> |