Java服务器主机信息监控工具类的示例代码

对接前端后效果展示如图：

1、CPU相关信息实体类

/** * CPU相关信息 *  * @author csp */public class Cpu{    /**     * 核心数     */    private int cpuNum;    /**     * CPU总的使用率     */    private double total;    /**     * CPU系统使用率     */    private double sys;    /**     * CPU用户使用率     */    private double used;    /**     * CPU当前等待率     */    private double wait;    /**     * CPU当前空闲率     */    private double free;    public int getCpuNum()    {        return cpuNum;    }    public void setCpuNum(int cpuNum)    {        this.cpuNum = cpuNum;    }    public double getTotal()    {        return Arith.round(Arith.mul(total, 100), 2);    }    public void setTotal(double total)    {        this.total = total;    }    public double getSys()    {        return Arith.round(Arith.mul(sys / total, 100), 2);    }    public void setSys(double sys)    {        this.sys = sys;    }    public double getUsed()    {        return Arith.round(Arith.mul(used / total, 100), 2);    }    public void setUsed(double used)    {        this.used = used;    }    public double getWait()    {        return Arith.round(Arith.mul(wait / total, 100), 2);    }    public void setWait(double wait)    {        this.wait = wait;    }    public double getFree()    {        return Arith.round(Arith.mul(free / total, 100), 2);    }    public void setFree(double free)    {        this.free = free;    }}

2、內存相关信息实体类

/** * 內存相关信息 *  * @author csp */public class Mem{    /**     * 内存总量     */    private double total;    /**     * 已用内存     */    private double used;    /**     * 剩余内存     */    private double free;    public double getTotal()    {        return Arith.div(total, (1024 * 1024 * 1024), 2);    }    public void setTotal(long total)    {        this.total = total;    }    public double getUsed()    {        return Arith.div(used, (1024 * 1024 * 1024), 2);    }    public void setUsed(long used)    {        this.used = used;    }    public double getFree()    {        return Arith.div(free, (1024 * 1024 * 1024), 2);    }    public void setFree(long free)    {        this.free = free;    }    public double getUsage()    {        return Arith.mul(Arith.div(used, total, 4), 100);    }}

3、JVM相关信息实体类

/** * JVM相关信息 *  * @author csp */public class Jvm{    /**     * 当前JVM占用的内存总数(M)     */    private double total;    /**     * JVM最大可用内存总数(M)     */    private double max;    /**     * JVM空闲内存(M)     */    private double free;    /**     * JDK版本     */    private String version;    /**     * JDK路径     */    private String home;    public double getTotal()    {        return Arith.div(total, (1024 * 1024), 2);    }    public void setTotal(double total)    {        this.total = total;    }    public double getMax()    {        return Arith.div(max, (1024 * 1024), 2);    }    public void setMax(double max)    {        this.max = max;    }    public double getFree()    {        return Arith.div(free, (1024 * 1024), 2);    }    public void setFree(double free)    {        this.free = free;    }    public double getUsed()    {        return Arith.div(total - free, (1024 * 1024), 2);    }    public double getUsage()    {        return Arith.mul(Arith.div(total - free, total, 4), 100);    }    /**     * 获取JDK名称     */    public String getName()    {        return ManagementFactory.getRuntimeMXBean().getVmName();    }    public String getVersion()    {        return version;    }    public void setVersion(String version)    {        this.version = version;    }    public String getHome()    {        return home;    }    public void setHome(String home)    {        this.home = home;    }    /**     * JDK启动时间     */    public String getStartTime()    {        return DateUtils.parseDateToStr(DateUtils.YYYY_MM_DD_HH_MM_SS, DateUtils.getServerStartDate());    }    /**     * JDK运行时间     */    public String getRunTime()    {        return DateUtils.getDatePoor(DateUtils.getNowDate(), DateUtils.getServerStartDate());    }}

4、主机系统相关信息实体类

/** * 系统相关信息 *  * @author csp */public class Sys{    /**     * 服务器名称     */    private String computerName;    /**     * 服务器Ip     */    private String computerIp;    /**     * 项目路径     */    private String userDir;    /**     * 操作系统     */    private String osName;    /**     * 系统架构     */    private String osArch;    public String getComputerName()    {        return computerName;    }    public void setComputerName(String computerName)    {        this.computerName = computerName;    }    public String getComputerIp()    {        return computerIp;    }    public void setComputerIp(String computerIp)    {        this.computerIp = computerIp;    }    public String getUserDir()    {        return userDir;    }    public void setUserDir(String userDir)    {        this.userDir = userDir;    }    public String getOsName()    {        return osName;    }    public void setOsName(String osName)    {        this.osName = osName;    }    public String getOsArch()    {        return osArch;    }    public void setOsArch(String osArch)    {        this.osArch = osArch;    }}

5、系统文件相关信息实体类

/** * 系统文件相关信息 *  * @author csp */public class SysFile{    /**     * 盘符路径     */    private String dirName;    /**     * 盘符类型     */    private String sysTypeName;    /**     * 文件类型     */    private String typeName;    /**     * 总大小     */    private String total;    /**     * 剩余大小     */    private String free;    /**     * 已经使用量     */    private String used;    /**     * 资源的使用率     */    private double usage;    public String getDirName()    {        return dirName;    }    public void setDirName(String dirName)    {        this.dirName = dirName;    }    public String getSysTypeName()    {        return sysTypeName;    }    public void setSysTypeName(String sysTypeName)    {        this.sysTypeName = sysTypeName;    }    public String getTypeName()    {        return typeName;    }    public void setTypeName(String typeName)    {        this.typeName = typeName;    }    public String getTotal()    {        return total;    }    public void setTotal(String total)    {        this.total = total;    }    public String getFree()    {        return free;    }    public void setFree(String free)    {        this.free = free;    }    public String getUsed()    {        return used;    }    public void setUsed(String used)    {        this.used = used;    }    public double getUsage()    {        return usage;    }    public void setUsage(double usage)    {        this.usage = usage;    }}

6、服务器相关信息实体类

/** * 服务器相关信息 *  * @author csp */public class Server{    private static final int OSHI_WAIT_SECOND = 1000;        /**     * CPU相关信息     */    private Cpu cpu = new Cpu();    /**     * 內存相关信息     */    private Mem mem = new Mem();    /**     * JVM相关信息     */    private Jvm jvm = new Jvm();    /**     * 服务器相关信息     */    private Sys sys = new Sys();    /**     * 磁盘相关信息     */    private List<SysFile> sysFiles = new LinkedList<SysFile>();    public Cpu getCpu()    {        return cpu;    }    public void setCpu(Cpu cpu)    {        this.cpu = cpu;    }    public Mem getMem()    {        return mem;    }    public void setMem(Mem mem)    {        this.mem = mem;    }    public Jvm getJvm()    {        return jvm;    }    public void setJvm(Jvm jvm)    {        this.jvm = jvm;    }    public Sys getSys()    {        return sys;    }    public void setSys(Sys sys)    {        this.sys = sys;    }    public List<SysFile> getSysFiles()    {        return sysFiles;    }    public void setSysFiles(List<SysFile> sysFiles)    {        this.sysFiles = sysFiles;    }    /**     * 获取服务器主机相关信息     * @throws Exception     */    public void copyTo() throws Exception    {        // 获取系统信息        SystemInfo si = new SystemInfo();        // 根据SystemInfo获取硬件实例        HardwareAbstractionLayer hal = si.getHardware();        // 获取硬件CPU信息        setCpuInfo(hal.getProcessor());        // 获取硬件内存信息        setMemInfo(hal.getMemory());        // 设置服务器信息        setSysInfo();        // 设置Java虚拟机        setJvmInfo();        // 设置磁盘信息        setSysFiles(si.getOperatingSystem());    }    /**     * 设置CPU信息     */    private void setCpuInfo(CentralProcessor processor)    {        // CPU信息        long[] prevTicks = processor.getSystemCpuLoadTicks();        Util.sleep(OSHI_WAIT_SECOND);        long[] ticks = processor.getSystemCpuLoadTicks();        long nice = ticks[TickType.NICE.getIndex()] - prevTicks[TickType.NICE.getIndex()];        long irq = ticks[TickType.IRQ.getIndex()] - prevTicks[TickType.IRQ.getIndex()];        long softirq = ticks[TickType.SOFTIRQ.getIndex()] - prevTicks[TickType.SOFTIRQ.getIndex()];        long steal = ticks[TickType.STEAL.getIndex()] - prevTicks[TickType.STEAL.getIndex()];        long cSys = ticks[TickType.SYSTEM.getIndex()] - prevTicks[TickType.SYSTEM.getIndex()];        long user = ticks[TickType.USER.getIndex()] - prevTicks[TickType.USER.getIndex()];        long iowait = ticks[TickType.IOWAIT.getIndex()] - prevTicks[TickType.IOWAIT.getIndex()];        long idle = ticks[TickType.IDLE.getIndex()] - prevTicks[TickType.IDLE.getIndex()];        long totalCpu = user + nice + cSys + idle + iowait + irq + softirq + steal;        cpu.setCpuNum(processor.getLogicalProcessorCount());// Cpu 核数        cpu.setTotal(totalCpu);// CPU总的使用率        cpu.setSys(cSys);// CPU系统使用率        cpu.setUsed(user);// CPU用户使用率        cpu.setWait(iowait);// CPU当前等待率        cpu.setFree(idle);// CPU当前空闲率    }    /**     * 设置内存信息     */    private void setMemInfo(GlobalMemory memory)    {        mem.setTotal(memory.getTotal());// 总内存大小        mem.setUsed(memory.getTotal() - memory.getAvailable());// 已使用内存大小        mem.setFree(memory.getAvailable());// 空闲内存大小    }    /**     * 设置服务器信息     */    private void setSysInfo()    {        // 获取当前的系统属性        Properties props = System.getProperties();        sys.setComputerName(IpUtils.getHostName());// 获取主机名称        sys.setComputerIp(IpUtils.getHostIp());// 获取主机IP        sys.setOsName(props.getProperty("os.name"));// 获取主机类型 Windows 10        sys.setOsArch(props.getProperty("os.arch"));// 获取主机显卡类型 amd64        sys.setUserDir(props.getProperty("user.dir"));// 获取项目所在路径 F:\git\ruoyi\RuoYi-Vue    }    /**     * 设置Java虚拟机     */    private void setJvmInfo() throws UnknownHostException    {        Properties props = System.getProperties();        jvm.setTotal(Runtime.getRuntime().totalMemory());// JVM总内存 625.5M        jvm.setMax(Runtime.getRuntime().maxMemory());// JVM已使用内存 347.99M        jvm.setFree(Runtime.getRuntime().freeMemory());// JVM空闲内存 277.51M        jvm.setVersion(props.getProperty("java.version"));// jdk版本 1.8        jvm.setHome(props.getProperty("java.home"));// JDK安装路径 C:\Program Files\Java\jdk1.8.0_201\jre    }    /**     * 设置磁盘信息     */    private void setSysFiles(OperatingSystem os)    {        // 根据 操作系统（OS） 获取 FileSystem        FileSystem fileSystem = os.getFileSystem();        // 根据 FileSystem 获取主机磁盘信息list集合        List<OSFileStore> fsArray = fileSystem.getFileStores();        for (OSFileStore fs : fsArray)        {            long free = fs.getUsableSpace();// 磁盘空闲容量            long total = fs.getTotalSpace();// 磁盘总容量            long used = total - free;// 磁盘已使用容量            SysFile sysFile = new SysFile();            sysFile.setDirName(fs.getMount());// 磁盘符号 C:\            sysFile.setSysTypeName(fs.getType());// 磁盘类型 NTFS            sysFile.setTypeName(fs.getName());// 磁盘名称 本地固定磁盘 (C:)            sysFile.setTotal(convertFileSize(total));// 磁盘总容量            sysFile.setFree(convertFileSize(free));// 磁盘空闲容量            sysFile.setUsed(convertFileSize(used));// 磁盘已使用容量            sysFile.setUsage(Arith.mul(Arith.div(used, total, 4), 100));// 磁盘资源的使用率            sysFiles.add(sysFile);        }    }    /**     * 字节转换     *      * @param size 字节大小     * @return 转换后值     */    public String convertFileSize(long size)    {        long kb = 1024;        long mb = kb * 1024;        long gb = mb * 1024;        if (size >= gb)        {            return String.format("%.1f GB", (float) size / gb);        }        else if (size >= mb)        {            float f = (float) size / mb;            return String.format(f > 100 ? "%.0f MB" : "%.1f MB", f);        }        else if (size >= kb)        {            float f = (float) size / kb;            return String.format(f > 100 ? "%.0f KB" : "%.1f KB", f);        }        else        {            return String.format("%d B", size);        }    }}

7、Controller接口对接前端

/** * 服务器监控 *  * @author csp */@RestController@RequestMapping("/monitor/server")public class ServerController{    /**     * 获取服务器相关信息     * @return     * @throws Exception     */    @PreAuthorize("@ss.hasPermi('monitor:server:list')")// Spring Security自定义权限控制注解，不影响结果，可以不加    // AjaxResult 自定义返回结果类，不影响结果，可以自定义    @GetMapping()    public AjaxResult getInfo() throws Exception    {        // 获取服务器相关信息        Server server = new Server();        server.copyTo();        return AjaxResult.success(server);    }}

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