Java 獲取系統cpu 內存

原文連接：https://blog.csdn.net/CallMeV6/article/details/83176840

說明：獲取的數據是操做系統總體的資源佔用狀況，不是當前 java進程佔用的資源

1. 獲取系統CPU佔用狀況 ：

import java.lang.management.ManagementFactory; import com.sun.management.OperatingSystemMXBean; private static OperatingSystemMXBean osmxb = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean(); public static int cpuLoad() { double cpuLoad = osmxb.getSystemCpuLoad(); int percentCpuLoad = (int) (cpuLoad * 100); return percentCpuLoad; }

 

注意：JDK必須是1.8及以上的

           返回的值是CPU的百分比，取的是整數值

 

2. 獲取系統內存佔用狀況 

import java.lang.management.ManagementFactory; import com.sun.management.OperatingSystemMXBean; private static OperatingSystemMXBean osmxb = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean(); public static int memoryLoad() { double totalvirtualMemory = osmxb.getTotalPhysicalMemorySize(); double freePhysicalMemorySize = osmxb.getFreePhysicalMemorySize(); double value = freePhysicalMemorySize/totalvirtualMemory; int percentMemoryLoad = (int) ((1-value)*100); return percentMemoryLoad; } 

注意：JDK爲1.6及以上版本

           返回的值是內存的百分比，取的是整數值