java获取硬盘使用情况_Java获取当前内存及硬盘使用情况

import java.io.File;

import java.lang.management.ManagementFactory;

import com.sun.management.OperatingSystemMXBean;

public class MemDisk

{

public static void main(String[] args)

{

getMemInfo();

System.out.println();

getDiskInfo();

}

public static void getDiskInfo()

{

File[] disks = File.listRoots();

for(File file : disks)

{

System.out.print(file.getPath() + " ");

System.out.print("空闲未使用 = " + file.getFreeSpace() / 1024 / 1024 + "M" + " ");// 空闲空间

System.out.print("已经使用 = " + file.getUsableSpace() / 1024 / 1024 + "M" + " ");// 可用空间

System.out.print("总容量 = " + file.getTotalSpace() / 1024 / 1024 + "M" + " ");// 总空间

System.out.println();

}

}

public static void getMemInfo()

{

OperatingSystemMXBean mem = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();

System.out.println("Total RAM：" + mem.getTotalPhysicalMemorySize() / 1024 / 1024 + "MB");

System.out.println("Available　RAM：" + mem.getFreePhysicalMemorySize() / 1024 / 1024 + "MB");

}

}