java获得CPU使用率,系统内存,虚拟…

本文介绍如何使用Java程序实现获取计算机的CPU利用率和内存使用情况,并通过创建一个专门的Bean来存储所需信息。具体步骤包括计算程序运行时间、获取内存使用状态,如总内存、空闲内存、最大内存等。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >

程序计算时间:

long startTime=System.currentTimeMillis();<wbr><wbr> //获取开始时间<br><br> 。。。。。。。。。。。。<br> long endTime=System.currentTimeMillis(); //获取结束时间<br><br> System.out.println("程序运行时间: "+(endTime-startTime)+"ms(毫秒)");<br><br><br><br><br><br><br><wbr>利用java程序实现获取计算机cpu利用率和内存使用信息。<wbr><wbr><br><wbr><br><wbr><wbr><wbr> 创建一个Bean用来存贮要得到的信<wbr><wbr><br><wbr><br> public class MonitorInfoBean {<wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr> private long totalMemory;<wbr><wbr><br><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr> private long freeMemory;<wbr><wbr><br><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr> private long maxMemory;<wbr><wbr><br><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr> private String osName;<wbr><wbr><br><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr> private long totalMemorySize;<wbr><wbr><br><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr> private long freePhysicalMemorySize;<wbr><wbr><br><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr> private long usedMemory;<wbr><wbr><br><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr> private int totalThread;<wbr><wbr><br><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr><wbr> private double cpuRatio;<wbr><wbr><br><wbr><br><wbr><wbr><wbr> public long getFreeMemory() {<wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><wbr><wbr> return freeMemory;<wbr><wbr><br><wbr><wbr><wbr> }<wbr><wbr><br><wbr><br><wbr><wbr><wbr> public void setFreeMemory(long freeMemory) {<wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><wbr><wbr> this.freeMemory = freeMemory;<wbr><wbr><br><wbr><wbr><wbr> }<wbr><wbr><br><wbr><br><wbr><wbr><wbr> public long getFreePhysicalMemorySiz<wbr>e() {<wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><wbr><wbr> return freePhysicalMemorySize;<wbr><wbr><br><wbr><wbr><wbr> }<wbr><wbr><br><wbr><br><wbr><wbr><wbr> public void setFreePhysicalMemorySiz<wbr>e(long freePhysicalMemorySize) {<wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><wbr><wbr> this.freePhysicalMemorySize = freePhysicalMemorySize;<wbr><wbr><br><wbr><wbr><wbr> }<wbr><wbr><br><wbr><br><wbr><wbr><wbr> public long getMaxMemory() {<wbr><wbr><br><wbr><wbr><wbr><wbr><wbr><wbr><wbr> return maxMemory;<wbr><wbr><br><wbr><wbr><wbr> }<wbr><wbr><br><wbr><br><wbr><wbr><wbr> public void setMaxMemory(long maxMemory) {<wbr><wbr><br><wbr><wbr><wbr><wbr><wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值