代码获取系统运行信息代码,Java代码库,德仔网

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【Java】代码获取系统运行信息
作者:皓云 / 发布于2018/3/23/ 582
MemoryMXBean memorymbean = ManagementFactory.getMemoryMXBean(); 
	MemoryUsage usage = memorymbean.getHeapMemoryUsage(); 
	System.out.println("INIT HEAP: " + usage.getInit()); 
	System.out.println("MAX HEAP: " + usage.getMax()); 
	System.out.println("USE HEAP: " + usage.getUsed()); 
	System.out.println("\nFull Information:"); 
	System.out.println("Heap Memory Usage: " 
	+ memorymbean.getHeapMemoryUsage()); 
	System.out.println("Non-Heap Memory Usage: " 
	+ memorymbean.getNonHeapMemoryUsage()); 
	
	List<String> inputArguments = ManagementFactory.getRuntimeMXBean().getInputArguments(); 
	System.out.println("===================java options=============== ");
	System.out.println(inputArguments);

	
	
	System.out.println("=======================通过java来获取相关系统状态============================ ");
	int i = (int)Runtime.getRuntime().totalMemory()/1024;//Java 虚拟机中的内存总量,以字节为单位
	System.out.println("总的内存量 i is "+i);
	int j = (int)Runtime.getRuntime().freeMemory()/1024;//Java 虚拟机中的空闲内存量
	System.out.println("空闲内存量 j is "+j);
	System.out.println("最大内存量 is "+Runtime.getRuntime().maxMemory()/1024);

	System.out.println("=======================OperatingSystemMXBean============================ ");
	OperatingSystemMXBean osm = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
//    System.out.println(osm.getFreeSwapSpaceSize()/1024);
//    System.out.println(osm.getFreePhysicalMemorySize()/1024);
//    System.out.println(osm.getTotalPhysicalMemorySize()/1024);
    
    //获取操作系统相关信息
    System.out.println("osm.getArch() "+osm.getArch());
    System.out.println("osm.getAvailableProcessors() "+osm.getAvailableProcessors());
    //System.out.println("osm.getCommittedVirtualMemorySize() "+osm.getCommittedVirtualMemorySize());
    System.out.println("osm.getName() "+osm.getName());
    //System.out.println("osm.getProcessCpuTime() "+osm.getProcessCpuTime());
    System.out.println("osm.getVersion() "+osm.getVersion());
    //获取整个虚拟机内存使用情况
    System.out.println("=======================MemoryMXBean============================ ");
    MemoryMXBean mm=(MemoryMXBean)ManagementFactory.getMemoryMXBean();
    System.out.println("getHeapMemoryUsage "+mm.getHeapMemoryUsage());
    System.out.println("getNonHeapMemoryUsage "+mm.getNonHeapMemoryUsage());
    //获取各个线程的各种状态，CPU 占用情况，以及整个系统中的线程状况
    System.out.println("=======================ThreadMXBean============================ ");
    ThreadMXBean tm=(ThreadMXBean)ManagementFactory.getThreadMXBean();
    System.out.println("getThreadCount "+tm.getThreadCount());
    System.out.println("getPeakThreadCount "+tm.getPeakThreadCount());
    System.out.println("getCurrentThreadCpuTime "+tm.getCurrentThreadCpuTime());
    System.out.println("getDaemonThreadCount "+tm.getDaemonThreadCount());
    System.out.println("getCurrentThreadUserTime "+tm.getCurrentThreadUserTime());
    
    //当前编译器情况
    System.out.println("=======================CompilationMXBean============================ ");
    CompilationMXBean gm=(CompilationMXBean)ManagementFactory.getCompilationMXBean();
    System.out.println("getName "+gm.getName());
    System.out.println("getTotalCompilationTime "+gm.getTotalCompilationTime());
    
    //获取多个内存池的使用情况
    System.out.println("=======================MemoryPoolMXBean============================ ");
    List<MemoryPoolMXBean> mpmList=ManagementFactory.getMemoryPoolMXBeans();
    for(MemoryPoolMXBean mpm:mpmList){
	    System.out.println("getUsage "+mpm.getUsage());
	    System.out.println("getMemoryManagerNames "+mpm.getMemoryManagerNames().toString());
    }
    //获取GC的次数以及花费时间之类的信息
    System.out.println("=======================MemoryPoolMXBean============================ ");
    List<GarbageCollectorMXBean> gcmList=ManagementFactory.getGarbageCollectorMXBeans();
    for(GarbageCollectorMXBean gcm:gcmList){
	    System.out.println("getName "+gcm.getName());
	    System.out.println("getMemoryPoolNames "+gcm.getMemoryPoolNames());
    }
    //获取运行时信息
    System.out.println("=======================RuntimeMXBean============================ ");
    RuntimeMXBean rmb=(RuntimeMXBean)ManagementFactory.getRuntimeMXBean();
    System.out.println("getClassPath "+rmb.getClassPath());
    System.out.println("getLibraryPath "+rmb.getLibraryPath());
    System.out.println("getVmVersion "+rmb.getVmVersion());
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