java使用java.lang.management监视和管理 Java 虚拟机

软件包 java.lang.management提供管理接口，用于监视和管理 Java 虚拟机以及 Java 虚拟机在其上运行的操作系统。

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输出：

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jvm name:Java HotSpot(TM) Client VMjvm version:1.6.0-b105jvm bootClassPath:C:\Program Files\Java\jdk1.6.0\jre\lib\resources.jar;C:\Program Files\Java\jdk1.6.0\jre\lib\rt.jar;C:\Program Files\Java\jdk1.6.0\jre\lib\sunrsasign.jar;C:\Program Files\Java\jdk1.6.0\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.6.0\jre\lib\jce.jar;C:\Program Files\Java\jdk1.6.0\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.6.0\jre\classesjvm start time:1307440032774Heap committed:5177344 init:0 max:66650112 used:632640Architecture: x86Processors: 2System name: Windows XPSystem version: 5.1Last minute load: -1.0TotalLoadedClassCount: 381LoadedClassCount381UnloadedClassCount:0TotalCompilationTime:3name:HotSpot Client CompilerThreadCount5AllThreadIds:[J@47b480CurrentThreadUserTime15625000name:CopyCollectionCount:0CollectionTime0name:MarkSweepCompactCollectionCount:0CollectionTime0name:CodeCacheManagerMemoryPoolNames:[Ljava.lang.String;@1389e4name:CopyMemoryPoolNames:[Ljava.lang.String;@c20e24name:MarkSweepCompactMemoryPoolNames:[Ljava.lang.String;@2e7263name:Code CacheCollectionUsage:nulltype:Non-heap memoryname:Eden SpaceCollectionUsage:init = 917504(896K) used = 0(0K) committed = 0(0K) max = 4194304(4096K)type:Heap memoryname:Survivor SpaceCollectionUsage:init = 65536(64K) used = 0(0K) committed = 0(0K) max = 458752(448K)type:Heap memoryname:Tenured GenCollectionUsage:init = 4194304(4096K) used = 0(0K) committed = 0(0K) max = 61997056(60544K)type:Heap memoryname:Perm GenCollectionUsage:init = 12582912(12288K) used = 0(0K) committed = 0(0K) max = 67108864(65536K)type:Non-heap memoryname:Perm Gen [shared-ro]CollectionUsage:init = 8388608(8192K) used = 0(0K) committed = 0(0K) max = 8388608(8192K)type:Non-heap memoryname:Perm Gen [shared-rw]CollectionUsage:init = 12582912(12288K) used = 0(0K) committed = 0(0K) max = 12582912(12288K)type:Non-heap memory