JAVA代碼中擷取JVM資訊

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一、JAVA中擷取JVM的資訊

　　原理，利用JavaSDK內建的ManagementFactory類來擷取。

二、擷取資訊

1、擷取進程ID

    @Test    public void test1() {        RuntimeMXBean mxb = ManagementFactory.getRuntimeMXBean();        System.out.println(mxb.getName()); //[email protected]    }

2、擷取ManagementFactory.getRuntimeMXBean()的其它資訊

RuntimeMXBean mxb = ManagementFactory.getRuntimeMXBean();
mxb.getSystemProperties() = {[email protected]}  size = 56mxb.getInputArguments() = {[email protected]}  size = 5mxb.getBootClassPath() = "C:\Program Files\Java\jdk1.8.0_161\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\rt.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\sunrsasign.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_161\jre\classes;D:\Applicaton\DevTools\JetBrains\IntelliJIDEA\lib\rt\debugger-agent-storage.jar"mxb.getLibraryPath() = "C:\Program Files\Java\jdk1.8.0_161\bin;C:\windows\Sun\Java\bin;C:\windows\system32;C:\windows;C:\Program Files\Docker\Docker\Resources\bin;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\bin;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\libnvvp;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\lib\x64;D:\Applicaton\DevTools\Python\3.5\Scripts\;D:\Applicaton\DevTools\Python\3.5\;D:\Applicaton\DevTools\cudnn-8.0-windows10-x64-v5.1\cuda;D:\Applicaton\DevTools\cudnn-8.0-windows10-x64-v5.1\cuda\bin;D:\Applicaton\DevTools\cudnn-8.0-windows10-x64-v5.1\cuda\lib\x64;D:\Applicaton\DevTools\cudnn-8.0-windows10-x64-v5.1\cuda\lib;C:\Program Files (x86)\Common Files\NetSarang;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files (x86)\Microsoft SDKs\Azure\CL"mxb.getClassPath() = "D:\Applicaton\DevTools\JetBrains\IntelliJIDEA\lib\idea_rt.jar;D:\Applicaton\DevTools\JetBrains\IntelliJIDEA\plugins\junit\lib\junit-rt.jar;D:\Applicaton\DevTools\JetBrains\IntelliJIDEA\plugins\junit\lib\junit5-rt.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_161\jre\lib\ext\sunpkcs11.jar;C:\Pr"mxb.getManagementSpecVersion() = "1.2"mxb.getSpecName() = "Java Virtual Machine Specification"mxb.getSpecVendor() = "Oracle Corporation"mxb.getStartTime() = 1527587462275mxb.getUptime() = 95372mxb.getVmVendor() = "Oracle Corporation"mxb.getObjectName() = {[email protected]} "java.lang:type=Runtime"mxb.getName() = "[email protected]"

 3、擷取作業系統資訊

    @Test    public void test2() {        OperatingSystemMXBean osb = ManagementFactory.getOperatingSystemMXBean();        System.out.println(osb.getName()); //Windows 10        System.out.println(osb.getArch()); //amd 64        System.out.println(osb.getAvailableProcessors()); //4        System.out.println(osb.getVersion()); //10.0        System.out.println(osb.getSystemLoadAverage()); //-1.0    }

JAVA代碼中擷取JVM資訊