package cn.stylefeng.guns.base.oshi.model;
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import cn.hutool.core.date.DateUnit;
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import cn.hutool.core.date.DateUtil;
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import cn.hutool.core.util.NumberUtil;
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import lombok.Setter;
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import java.lang.management.ManagementFactory;
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import java.util.Date;
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/**
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* JVM相关信息
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*
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* @author fengshuonan
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* @Date 2019-07-13 13:42
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*/
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@Setter
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public class JvmInfo {
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/**
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* 当前JVM占用的内存总数(M)
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*/
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private double total;
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/**
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* JVM最大可用内存总数(M)
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*/
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private double max;
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/**
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* JVM空闲内存(M)
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*/
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private double free;
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/**
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* JDK版本
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*/
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private String version;
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/**
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* JDK路径
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*/
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private String home;
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public double getTotal() {
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return NumberUtil.div(total, (1024 * 1024), 2);
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}
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public double getMax() {
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return NumberUtil.div(max, (1024 * 1024), 2);
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}
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public double getFree() {
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return NumberUtil.div(free, (1024 * 1024), 2);
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}
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public double getUsed() {
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return NumberUtil.div(total - free, (1024 * 1024), 2);
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}
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public String getVersion() {
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return version;
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}
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public String getHome() {
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return home;
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}
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public double getUsage() {
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return NumberUtil.mul(NumberUtil.div(total - free, total, 4), 100);
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}
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/**
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* 获取JDK名称
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*/
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public String getName() {
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return ManagementFactory.getRuntimeMXBean().getVmName();
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}
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/**
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* JDK启动时间
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*/
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public String getStartTime() {
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long time = ManagementFactory.getRuntimeMXBean().getStartTime();
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Date date = new Date(time);
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return DateUtil.formatDateTime(date);
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}
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/**
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* JDK运行时间
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*/
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public String getRunTime() {
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long time = ManagementFactory.getRuntimeMXBean().getStartTime();
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Date date = new Date(time);
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//运行多少分钟
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long runMS = DateUtil.between(date, new Date(), DateUnit.MS);
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long nd = 1000 * 24 * 60 * 60;
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long nh = 1000 * 60 * 60;
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long nm = 1000 * 60;
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long day = runMS / nd;
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long hour = runMS % nd / nh;
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long min = runMS % nd % nh / nm;
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return day + "天" + hour + "小时" + min + "分钟";
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}
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}
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