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				|  |  | +package com.genersoft.iot.vmp.utils;
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				|  |  | +
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				|  |  | +import oshi.SystemInfo;
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				|  |  | +import oshi.hardware.CentralProcessor;
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				|  |  | +import oshi.hardware.GlobalMemory;
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				|  |  | +import oshi.hardware.HardwareAbstractionLayer;
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				|  |  | +import oshi.hardware.NetworkIF;
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				|  |  | +import oshi.software.os.OperatingSystem;
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				|  |  | +import oshi.util.FormatUtil;
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				|  |  | +
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				|  |  | +import java.text.DecimalFormat;
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				|  |  | +import java.util.HashMap;
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				|  |  | +import java.util.List;
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				|  |  | +import java.util.Map;
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				|  |  | +import java.util.concurrent.TimeUnit;
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				|  |  | +
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				|  |  | +/**
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				|  |  | + * 实现参考自xiaozhangnomoney原创文章,
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				|  |  | + * 版权声明:本文为xiaozhangnomoney原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接和本声明
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				|  |  | + * 原文出处链接:https://blog.csdn.net/xiaozhangnomoney/article/details/107769147
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				|  |  | + */
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				|  |  | +public class SystemInfoUtils {
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				|  |  | +
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				|  |  | +    /**
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				|  |  | +     * 获取cpu信息
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				|  |  | +     * @return
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				|  |  | +     * @throws InterruptedException
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				|  |  | +     */
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				|  |  | +    public static double getCpuInfo() throws InterruptedException {
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				|  |  | +        SystemInfo systemInfo = new SystemInfo();
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				|  |  | +        CentralProcessor processor = systemInfo.getHardware().getProcessor();
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				|  |  | +        long[] prevTicks = processor.getSystemCpuLoadTicks();
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				|  |  | +        // 睡眠1s
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				|  |  | +        TimeUnit.SECONDS.sleep(1);
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				|  |  | +        long[] ticks = processor.getSystemCpuLoadTicks();
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				|  |  | +        long nice = ticks[CentralProcessor.TickType.NICE.getIndex()] - prevTicks[CentralProcessor.TickType.NICE.getIndex()];
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				|  |  | +        long irq = ticks[CentralProcessor.TickType.IRQ.getIndex()] - prevTicks[CentralProcessor.TickType.IRQ.getIndex()];
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				|  |  | +        long softirq = ticks[CentralProcessor.TickType.SOFTIRQ.getIndex()] - prevTicks[CentralProcessor.TickType.SOFTIRQ.getIndex()];
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				|  |  | +        long steal = ticks[CentralProcessor.TickType.STEAL.getIndex()] - prevTicks[CentralProcessor.TickType.STEAL.getIndex()];
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				|  |  | +        long cSys = ticks[CentralProcessor.TickType.SYSTEM.getIndex()] - prevTicks[CentralProcessor.TickType.SYSTEM.getIndex()];
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				|  |  | +        long user = ticks[CentralProcessor.TickType.USER.getIndex()] - prevTicks[CentralProcessor.TickType.USER.getIndex()];
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				|  |  | +        long iowait = ticks[CentralProcessor.TickType.IOWAIT.getIndex()] - prevTicks[CentralProcessor.TickType.IOWAIT.getIndex()];
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				|  |  | +        long idle = ticks[CentralProcessor.TickType.IDLE.getIndex()] - prevTicks[CentralProcessor.TickType.IDLE.getIndex()];
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				|  |  | +        long totalCpu = user + nice + cSys + idle + iowait + irq + softirq + steal;
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				|  |  | +        return 1.0-(idle * 1.0 / totalCpu);
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				|  |  | +    }
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				|  |  | +
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				|  |  | +    /**
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				|  |  | +     * 获取内存使用率
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				|  |  | +     * @return
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				|  |  | +     */
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				|  |  | +    public static double getMemInfo(){
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				|  |  | +        SystemInfo systemInfo = new SystemInfo();
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				|  |  | +        GlobalMemory memory = systemInfo.getHardware().getMemory();
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				|  |  | +        //总内存
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				|  |  | +        long totalByte = memory.getTotal();
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				|  |  | +        //剩余
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				|  |  | +        long acaliableByte = memory.getAvailable();
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				|  |  | +        return (totalByte-acaliableByte)*1.0/totalByte;
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				|  |  | +    }
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				|  |  | +
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				|  |  | +    /**
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				|  |  | +     * 获取网络上传和下载
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				|  |  | +     * @return
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				|  |  | +     */
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				|  |  | +    public static Map<String,String> getNetworkInterfaces() {
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				|  |  | +        SystemInfo si = new SystemInfo();
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				|  |  | +        HardwareAbstractionLayer hal = si.getHardware();
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				|  |  | +        List<NetworkIF> networkIFs = hal.getNetworkIFs();
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				|  |  | +        int i= networkIFs.size() -1;
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				|  |  | +        NetworkIF net= networkIFs.get(i);
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				|  |  | +
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				|  |  | +        String in  = FormatUtil.formatBytes(net.getBytesRecv());
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				|  |  | +        String out = FormatUtil.formatBytes(net.getBytesSent());
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				|  |  | +        HashMap<String, String> map = new HashMap<>();
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				|  |  | +        map.put("in",in);
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				|  |  | +        map.put("out",out);
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				|  |  | +        return map;
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				|  |  | +    }
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				|  |  | +
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				|  |  | +    /**
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				|  |  | +     * 获取进程数
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				|  |  | +     * @return
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				|  |  | +     */
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				|  |  | +    public static int getProcessesCount(){
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				|  |  | +        SystemInfo si = new SystemInfo();
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				|  |  | +        OperatingSystem os = si.getOperatingSystem();
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				|  |  | +
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				|  |  | +        int processCount = os.getProcessCount();
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				|  |  | +        return processCount;
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				|  |  | +    }
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				|  |  | +}
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