java怎样获取CPU占用率和硬盘占用率
通过jmx可以监控vm内存使用,系统内存使用等，以下是网上某博客代码，特点是通过window和linux命令获得CPU使用率。
利用java程序实现获取计算机cpu利用率和内存使用信息。
package com.amgkaka.performance;
/** *//** * 监视信息的JavaBean类. * @author amg * @version 1.0 * Creation date: 2008-4-25 - 上午10:37:00 */ public class MonitorInfoBean { /** *//** 可使用内存. */ private long totalMemory; /** *//** 剩余内存. */ private long freeMemory; /** *//** 最大可使用内存. */ private long maxMemory; /** *//** <a href="https://www.baidu.com/s?wd=%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YYmhN-mHIWuWPhrHDYnyR40ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPHczPWTsPjn1rHDkPWTsrjfd" target="_blank" class="baidu-highlight">操作系统</a>. */ private String osName; /** *//** 总的<a href="https://www.baidu.com/s?wd=%E7%89%A9%E7%90%86%E5%86%85%E5%AD%98&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YYmhN-mHIWuWPhrHDYnyR40ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPHczPWTsPjn1rHDkPWTsrjfd" target="_blank" class="baidu-highlight">物理内存</a>. */ private long totalMemorySize; /** *//** 剩余的<a href="https://www.baidu.com/s?wd=%E7%89%A9%E7%90%86%E5%86%85%E5%AD%98&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YYmhN-mHIWuWPhrHDYnyR40ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPHczPWTsPjn1rHDkPWTsrjfd" target="_blank" class="baidu-highlight">物理内存</a>. */ private long freePhysicalMemorySize; /** *//** 已使用的<a href="https://www.baidu.com/s?wd=%E7%89%A9%E7%90%86%E5%86%85%E5%AD%98&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YYmhN-mHIWuWPhrHDYnyR40ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPHczPWTsPjn1rHDkPWTsrjfd" target="_blank" class="baidu-highlight">物理内存</a>. */ private long usedMemory; /** *//** 线程总数. */ private int totalThread; /** *//** <a href="https://www.baidu.com/s?wd=cpu%E4%BD%BF%E7%94%A8%E7%8E%87&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YYmhN-mHIWuWPhrHDYnyR40ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPHczPWTsPjn1rHDkPWTsrjfd" target="_blank" class="baidu-highlight">cpu使用率</a>. */ private double cpuRatio; public long getFreeMemory() { return freeMemory; } public void setFreeMemory(long freeMemory) { this.freeMemory = freeMemory; } public long getFreePhysicalMemorySize() { return freePhysicalMemorySize; } public void setFreePhysicalMemorySize(long freePhysicalMemorySize) { this.freePhysicalMemorySize = freePhysicalMemorySize; } public long getMaxMemory() { return maxMemory; } public void setMaxMemory(long maxMemory) { this.maxMemory = maxMemory; } public String getOsName() { return osName; } public void setOsName(String osName) { this.osName = osName; } public long getTotalMemory() { return totalMemory; } public void setTotalMemory(long totalMemory) { this.totalMemory = totalMemory; } public long getTotalMemorySize() { return totalMemorySize; } public void setTotalMemorySize(long totalMemorySize) { this.totalMemorySize = totalMemorySize; } public int getTotalThread() { return totalThread; } public void setTotalThread(int totalThread) { this.totalThread = totalThread; } public long getUsedMemory() { return usedMemory; } public void setUsedMemory(long usedMemory) { this.usedMemory = usedMemory; } public double getCpuRatio() { return cpuRatio; } public void setCpuRatio(double cpuRatio) { this.cpuRatio = cpuRatio; } }