說明：獲取的資料是作業系統整體的資源佔用情況，不是當前 java程序佔用的資源

1. 獲取系統CPU佔用情況 ：

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. 獲取系統記憶體佔用情況

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為1.6及以上版本

返回的值是記憶體的百分比，取的是整數值

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