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java sigar获取本地信息以及org.hyperic.sigar.SigarException: The device is not ready报错解决

window 下，使用 java sigar 获取磁盘使用率，cpu 使用率以及内存使用情况等信息时。

一：首先需要下载 jar 包和相关文件

　　sigar-1.6.4.zip

　　如果想了解更多可以去

　　sigar 官方主页

二：将压缩包解压，然后复制目录下的   hyperic-sigar-1.6.4\sigar-bin\lib\sigar-amd64-winnt.dll  文件。

　　注意：根据自己的电脑选择正确的  sigar.dll  文件，我的电脑是 64 位的。

三：将 sigar-amd64-winnt.dll 文件放在你本机 jdk 的 bin 目录下（如：我本机 jdk 的 bin 目录为 E:\JAVA\jdk\jdk1.8.0_25\bin）。

四：将解压后目录下的 hyperic-sigar-1.6.4\sigar-bin\lib\sigar.jar 包，导入到你的项目中。

　　若是 maven 项目，那么配置如下引入
　　　　<dependency>
    　　　　<groupId>org.fusesource</groupId>
    　　　　　　<artifactId>sigar</artifactId>
   　　　　　　 <version>1.6.4</version>
　　　　</dependency>
　　就会自动下载了。
五：最后复制下面这段代码：

package com.example.demo;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Map;
import java.util.Properties;
import org.hyperic.sigar.CpuInfo;
import org.hyperic.sigar.CpuPerc;
import org.hyperic.sigar.FileSystem;
import org.hyperic.sigar.FileSystemUsage;
import org.hyperic.sigar.Mem;
import org.hyperic.sigar.NetFlags;
import org.hyperic.sigar.NetInterfaceConfig;
import org.hyperic.sigar.NetInterfaceStat;
import org.hyperic.sigar.OperatingSystem;
import org.hyperic.sigar.Sigar;
import org.hyperic.sigar.SigarException;
import org.hyperic.sigar.Swap;
import org.hyperic.sigar.Who;


public class Test {
public static void main(String[] args) {
try {
// System 信息，从 jvm 获取
            property();
System.out.println("----------------------------------");
// cpu 信息
            cpu();
System.out.println("----------------------------------");
// 内存信息
            memory();
System.out.println("----------------------------------");
// 操作系统信息
            os();
System.out.println("----------------------------------");
// 用户信息
            who();
System.out.println("----------------------------------");
// 文件系统信息
            file();
System.out.println("----------------------------------");
// 网络信息
            net();
System.out.println("----------------------------------");
// 以太网信息
            ethernet();
System.out.println("----------------------------------");
} catch (Exception e1) {
e1.printStackTrace();
}
}


</span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span> property() <span style="color: rgba(0, 0, 255, 1)">throws</span><span style="color: rgba(0, 0, 0, 1)"> UnknownHostException {
    Runtime r </span>=<span style="color: rgba(0, 0, 0, 1)"> Runtime.getRuntime();
    Properties props </span>=<span style="color: rgba(0, 0, 0, 1)"> System.getProperties();
    InetAddress addr;
    addr </span>=<span style="color: rgba(0, 0, 0, 1)"> InetAddress.getLocalHost();
    String ip </span>=<span style="color: rgba(0, 0, 0, 1)"> addr.getHostAddress();
    Map</span>&lt;String, String&gt; map =<span style="color: rgba(0, 0, 0, 1)"> System.getenv();
    String userName </span>= map.get("USERNAME");<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 获取用户名</span>
    String computerName = map.get("COMPUTERNAME");<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 获取计算机名</span>
    String userDomain = map.get("USERDOMAIN");<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 获取计算机域名</span>
    System.out.println("用户名:    " +<span style="color: rgba(0, 0, 0, 1)"> userName);
    System.out.println(</span>"计算机名:    " +<span style="color: rgba(0, 0, 0, 1)"> computerName);
    System.out.println(</span>"计算机域名:    " +<span style="color: rgba(0, 0, 0, 1)"> userDomain);
    System.out.println(</span>"本地ip地址:    " +<span style="color: rgba(0, 0, 0, 1)"> ip);
    System.out.println(</span>"本地主机名:    " +<span style="color: rgba(0, 0, 0, 1)"> addr.getHostName());
    System.out.println(</span>"JVM可以使用的总内存:    " +<span style="color: rgba(0, 0, 0, 1)"> r.totalMemory());
    System.out.println(</span>"JVM可以使用的剩余内存:    " +<span style="color: rgba(0, 0, 0, 1)"> r.freeMemory());
    System.out.println(</span>"JVM可以使用的处理器个数:    " +<span style="color: rgba(0, 0, 0, 1)"> r.availableProcessors());
    System.out.println(</span>"Java的运行环境版本：    " + props.getProperty("java.version"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java的运行环境供应商：    " + props.getProperty("java.vendor"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java供应商的URL：    " + props.getProperty("java.vendor.url"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java的安装路径：    " + props.getProperty("java.home"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java的虚拟机规范版本：    " + props.getProperty("java.vm.specification.version"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java的虚拟机规范供应商：    " + props.getProperty("java.vm.specification.vendor"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java的虚拟机规范名称：    " + props.getProperty("java.vm.specification.name"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java的虚拟机实现版本：    " + props.getProperty("java.vm.version"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java的虚拟机实现供应商：    " + props.getProperty("java.vm.vendor"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java的虚拟机实现名称：    " + props.getProperty("java.vm.name"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java运行时环境规范版本：    " + props.getProperty("java.specification.version"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java运行时环境规范供应商：    " + props.getProperty("java.specification.vender"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java运行时环境规范名称：    " + props.getProperty("java.specification.name"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java的类格式版本号：    " + props.getProperty("java.class.version"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"Java的类路径：    " + props.getProperty("java.class.path"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"加载库时搜索的路径列表：    " + props.getProperty("java.library.path"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"默认的临时文件路径：    " + props.getProperty("java.io.tmpdir"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"一个或多个扩展目录的路径：    " + props.getProperty("java.ext.dirs"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"操作系统的名称：    " + props.getProperty("os.name"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"操作系统的构架：    " + props.getProperty("os.arch"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"操作系统的版本：    " + props.getProperty("os.version"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"文件分隔符：    " + props.getProperty("file.separator"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"路径分隔符：    " + props.getProperty("path.separator"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"行分隔符：    " + props.getProperty("line.separator"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"用户的账户名称：    " + props.getProperty("user.name"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"用户的主目录：    " + props.getProperty("user.home"<span style="color: rgba(0, 0, 0, 1)">));
    System.out.println(</span>"用户的当前工作目录：    " + props.getProperty("user.dir"<span style="color: rgba(0, 0, 0, 1)">));
}

</span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span> memory() <span style="color: rgba(0, 0, 255, 1)">throws</span><span style="color: rgba(0, 0, 0, 1)"> SigarException {
    Sigar sigar </span>= <span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> Sigar();
    Mem mem </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getMem();
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 内存总量</span>
    System.out.println("内存总量:    " + mem.getTotal() / 1024L + "K av"<span style="color: rgba(0, 0, 0, 1)">);
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 当前内存使用量</span>
    System.out.println("当前内存使用量:    " + mem.getUsed() / 1024L + "K used"<span style="color: rgba(0, 0, 0, 1)">);
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 当前内存剩余量</span>
    System.out.println("当前内存剩余量:    " + mem.getFree() / 1024L + "K free"<span style="color: rgba(0, 0, 0, 1)">);
    Swap swap </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getSwap();
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 交换区总量</span>
    System.out.println("交换区总量:    " + swap.getTotal() / 1024L + "K av"<span style="color: rgba(0, 0, 0, 1)">);
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 当前交换区使用量</span>
    System.out.println("当前交换区使用量:    " + swap.getUsed() / 1024L + "K used"<span style="color: rgba(0, 0, 0, 1)">);
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 当前交换区剩余量</span>
    System.out.println("当前交换区剩余量:    " + swap.getFree() / 1024L + "K free"<span style="color: rgba(0, 0, 0, 1)">);
}

</span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span> cpu() <span style="color: rgba(0, 0, 255, 1)">throws</span><span style="color: rgba(0, 0, 0, 1)"> SigarException {
    Sigar sigar </span>= <span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> Sigar();
    CpuInfo infos[] </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getCpuInfoList();
    CpuPerc cpuList[] </span>= <span style="color: rgba(0, 0, 255, 1)">null</span><span style="color: rgba(0, 0, 0, 1)">;
    cpuList </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getCpuPercList();
    </span><span style="color: rgba(0, 0, 255, 1)">for</span> (<span style="color: rgba(0, 0, 255, 1)">int</span> i = 0; i &lt; infos.length; i++) {<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 不管是单块CPU还是多CPU都适用</span>
        CpuInfo info =<span style="color: rgba(0, 0, 0, 1)"> infos[i];
        System.out.println(</span>"第" + (i + 1) + "块CPU信息"<span style="color: rgba(0, 0, 0, 1)">);
        System.out.println(</span>"CPU的总量MHz:    " + info.getMhz());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> CPU的总量MHz</span>
        System.out.println("CPU生产商:    " + info.getVendor());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 获得CPU的卖主，如：Intel</span>
        System.out.println("CPU类别:    " + info.getModel());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 获得CPU的类别，如：Celeron</span>
        System.out.println("CPU缓存数量:    " + info.getCacheSize());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 缓冲存储器数量</span>



            printCpuPerc(cpuList[i]);
}
}


</span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> printCpuPerc(CpuPerc cpu) {
    System.out.println(</span>"CPU用户使用率:    " + CpuPerc.format(cpu.getUser()));<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 用户使用率</span>
    System.out.println("CPU系统使用率:    " + CpuPerc.format(cpu.getSys()));<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 系统使用率</span>
    System.out.println("CPU当前等待率:    " + CpuPerc.format(cpu.getWait()));<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 当前等待率</span>
    System.out.println("CPU当前错误率:    " + CpuPerc.format(cpu.getNice()));<span style="color: rgba(0, 128, 0, 1)">//



        System.out.println("CPU 当前空闲率:" + CpuPerc.format(cpu.getIdle()));// 当前空闲率
System.out.println("CPU 总的使用率:" + CpuPerc.format(cpu.getCombined()));// 总的使用率
    }


</span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> os() {
    OperatingSystem OS </span>=<span style="color: rgba(0, 0, 0, 1)"> OperatingSystem.getInstance();
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 操作系统内核类型如： 386、486、586等x86</span>
    System.out.println("操作系统:    " +<span style="color: rgba(0, 0, 0, 1)"> OS.getArch());
    System.out.println(</span>"操作系统CpuEndian():    " + OS.getCpuEndian());<span style="color: rgba(0, 128, 0, 1)">//



        System.out.println("操作系统 DataModel():" + OS.getDataModel());//
// 系统描述
System.out.println("操作系统的描述:" + OS.getDescription());
// 操作系统类型
// System.out.println("OS.getName():" + OS.getName());
// System.out.println("OS.getPatchLevel():" + OS.getPatchLevel());//
// 操作系统的卖主
System.out.println("操作系统的卖主:" + OS.getVendor());
// 卖主名称
System.out.println("操作系统的卖主名:" + OS.getVendorCodeName());
// 操作系统名称
System.out.println("操作系统名称:" + OS.getVendorName());
// 操作系统卖主类型
System.out.println("操作系统卖主类型:" + OS.getVendorVersion());
// 操作系统的版本号
System.out.println("操作系统的版本号:" + OS.getVersion());
}


</span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span> who() <span style="color: rgba(0, 0, 255, 1)">throws</span><span style="color: rgba(0, 0, 0, 1)"> SigarException {
    Sigar sigar </span>= <span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> Sigar();
    Who who[] </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getWhoList();
    </span><span style="color: rgba(0, 0, 255, 1)">if</span> (who != <span style="color: rgba(0, 0, 255, 1)">null</span> &amp;&amp; who.length &gt; 0<span style="color: rgba(0, 0, 0, 1)">) {
        </span><span style="color: rgba(0, 0, 255, 1)">for</span> (<span style="color: rgba(0, 0, 255, 1)">int</span> i = 0; i &lt; who.length; i++<span style="color: rgba(0, 0, 0, 1)">) {
            </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> System.out.println("当前系统进程表中的用户名" + String.valueOf(i));</span>
            Who _who =<span style="color: rgba(0, 0, 0, 1)"> who[i];
            System.out.println(</span>"用户控制台:    " +<span style="color: rgba(0, 0, 0, 1)"> _who.getDevice());
            System.out.println(</span>"用户host:    " +<span style="color: rgba(0, 0, 0, 1)"> _who.getHost());
            </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> System.out.println("getTime():    " + _who.getTime());
            </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 当前系统进程表中的用户名</span>
            System.out.println("当前系统进程表中的用户名:    " +<span style="color: rgba(0, 0, 0, 1)"> _who.getUser());
        }
    }
}

</span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span> file() <span style="color: rgba(0, 0, 255, 1)">throws</span><span style="color: rgba(0, 0, 0, 1)"> Exception {
    Sigar sigar </span>= <span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> Sigar();
    FileSystem fslist[] </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getFileSystemList();
    </span><span style="color: rgba(0, 0, 255, 1)">for</span> (<span style="color: rgba(0, 0, 255, 1)">int</span> i = 0; i &lt; fslist.length; i++<span style="color: rgba(0, 0, 0, 1)">) {
        System.out.println(</span>"分区的盘符名称" +<span style="color: rgba(0, 0, 0, 1)"> i);
        FileSystem fs </span>=<span style="color: rgba(0, 0, 0, 1)"> fslist[i];
        </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 分区的盘符名称</span>
        System.out.println("盘符名称:    " +<span style="color: rgba(0, 0, 0, 1)"> fs.getDevName());
        </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 分区的盘符名称</span>
        System.out.println("盘符路径:    " +<span style="color: rgba(0, 0, 0, 1)"> fs.getDirName());
        System.out.println(</span>"盘符标志:    " + fs.getFlags());<span style="color: rgba(0, 128, 0, 1)">//</span>
        <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 文件系统类型，比如 FAT32、NTFS</span>
        System.out.println("盘符类型:    " +<span style="color: rgba(0, 0, 0, 1)"> fs.getSysTypeName());
        </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 文件系统类型名，比如本地硬盘、光驱、网络文件系统等</span>
        System.out.println("盘符类型名:    " +<span style="color: rgba(0, 0, 0, 1)"> fs.getTypeName());
        </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 文件系统类型</span>
        System.out.println("盘符文件系统类型:    " +<span style="color: rgba(0, 0, 0, 1)"> fs.getType());
        FileSystemUsage usage </span>= <span style="color: rgba(0, 0, 255, 1)">null</span><span style="color: rgba(0, 0, 0, 1)">;
        usage </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getFileSystemUsage(fs.getDirName());
        </span><span style="color: rgba(0, 0, 255, 1)">switch</span><span style="color: rgba(0, 0, 0, 1)"> (fs.getType()) {
        </span><span style="color: rgba(0, 0, 255, 1)">case</span> 0: <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TYPE_UNKNOWN ：未知</span>
            <span style="color: rgba(0, 0, 255, 1)">break</span><span style="color: rgba(0, 0, 0, 1)">;
        </span><span style="color: rgba(0, 0, 255, 1)">case</span> 1: <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TYPE_NONE</span>
            <span style="color: rgba(0, 0, 255, 1)">break</span><span style="color: rgba(0, 0, 0, 1)">;
        </span><span style="color: rgba(0, 0, 255, 1)">case</span> 2: <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TYPE_LOCAL_DISK : 本地硬盘
            </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 文件系统总大小</span>
            System.out.println(fs.getDevName() + "总大小:    " + usage.getTotal() + "KB"<span style="color: rgba(0, 0, 0, 1)">);
            </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 文件系统剩余大小</span>
            System.out.println(fs.getDevName() + "剩余大小:    " + usage.getFree() + "KB"<span style="color: rgba(0, 0, 0, 1)">);
            </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 文件系统可用大小</span>
            System.out.println(fs.getDevName() + "可用大小:    " + usage.getAvail() + "KB"<span style="color: rgba(0, 0, 0, 1)">);
            </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 文件系统已经使用量</span>
            System.out.println(fs.getDevName() + "已经使用量:    " + usage.getUsed() + "KB"<span style="color: rgba(0, 0, 0, 1)">);
            </span><span style="color: rgba(0, 0, 255, 1)">double</span> usePercent = usage.getUsePercent() *<span style="color: rgba(0, 0, 0, 1)"> 100D;
            </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 文件系统资源的利用率</span>
            System.out.println(fs.getDevName() + "资源的利用率:    " + usePercent + "%"<span style="color: rgba(0, 0, 0, 1)">);
            </span><span style="color: rgba(0, 0, 255, 1)">break</span><span style="color: rgba(0, 0, 0, 1)">;
        </span><span style="color: rgba(0, 0, 255, 1)">case</span> 3:<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TYPE_NETWORK ：网络</span>
            <span style="color: rgba(0, 0, 255, 1)">break</span><span style="color: rgba(0, 0, 0, 1)">;
        </span><span style="color: rgba(0, 0, 255, 1)">case</span> 4:<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TYPE_RAM_DISK ：闪存</span>
            <span style="color: rgba(0, 0, 255, 1)">break</span><span style="color: rgba(0, 0, 0, 1)">;
        </span><span style="color: rgba(0, 0, 255, 1)">case</span> 5:<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TYPE_CDROM ：光驱</span>
            <span style="color: rgba(0, 0, 255, 1)">break</span><span style="color: rgba(0, 0, 0, 1)">;
        </span><span style="color: rgba(0, 0, 255, 1)">case</span> 6:<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> TYPE_SWAP ：页面交换</span>
            <span style="color: rgba(0, 0, 255, 1)">break</span><span style="color: rgba(0, 0, 0, 1)">;
        }
        System.out.println(fs.getDevName() </span>+ "读出：    " +<span style="color: rgba(0, 0, 0, 1)"> usage.getDiskReads());
        System.out.println(fs.getDevName() </span>+ "写入：    " +<span style="color: rgba(0, 0, 0, 1)"> usage.getDiskWrites());
    }
    </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)">;
}

</span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span> net() <span style="color: rgba(0, 0, 255, 1)">throws</span><span style="color: rgba(0, 0, 0, 1)"> Exception {
    Sigar sigar </span>= <span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> Sigar();
    String ifNames[] </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getNetInterfaceList();
    </span><span style="color: rgba(0, 0, 255, 1)">for</span> (<span style="color: rgba(0, 0, 255, 1)">int</span> i = 0; i &lt; ifNames.length; i++<span style="color: rgba(0, 0, 0, 1)">) {
        String name </span>=<span style="color: rgba(0, 0, 0, 1)"> ifNames[i];
        NetInterfaceConfig ifconfig </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getNetInterfaceConfig(name);
        System.out.println(</span>"网络设备名:    " + name);<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 网络设备名</span>
        System.out.println("IP地址:    " + ifconfig.getAddress());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> IP地址</span>
        System.out.println("子网掩码:    " + ifconfig.getNetmask());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 子网掩码</span>
        <span style="color: rgba(0, 0, 255, 1)">if</span> ((ifconfig.getFlags() &amp; 1L) &lt;= 0L<span style="color: rgba(0, 0, 0, 1)">) {
            System.out.println(</span>"!IFF_UP...skipping getNetInterfaceStat"<span style="color: rgba(0, 0, 0, 1)">);
            </span><span style="color: rgba(0, 0, 255, 1)">continue</span><span style="color: rgba(0, 0, 0, 1)">;
        }
        NetInterfaceStat ifstat </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getNetInterfaceStat(name);
        System.out.println(name </span>+ "接收的总包裹数:" + ifstat.getRxPackets());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 接收的总包裹数</span>
        System.out.println(name + "发送的总包裹数:" + ifstat.getTxPackets());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 发送的总包裹数</span>
        System.out.println(name + "接收到的总字节数:" + ifstat.getRxBytes());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 接收到的总字节数</span>
        System.out.println(name + "发送的总字节数:" + ifstat.getTxBytes());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 发送的总字节数</span>
        System.out.println(name + "接收到的错误包数:" + ifstat.getRxErrors());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 接收到的错误包数</span>
        System.out.println(name + "发送数据包时的错误数:" + ifstat.getTxErrors());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 发送数据包时的错误数</span>
        System.out.println(name + "接收时丢弃的包数:" + ifstat.getRxDropped());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 接收时丢弃的包数</span>
        System.out.println(name + "发送时丢弃的包数:" + ifstat.getTxDropped());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 发送时丢弃的包数</span>



        }
}


</span><span style="color: rgba(0, 0, 255, 1)">private</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span> ethernet() <span style="color: rgba(0, 0, 255, 1)">throws</span><span style="color: rgba(0, 0, 0, 1)"> SigarException {
    Sigar sigar </span>= <span style="color: rgba(0, 0, 255, 1)">null</span><span style="color: rgba(0, 0, 0, 1)">;
    sigar </span>= <span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> Sigar();
    String[] ifaces </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getNetInterfaceList();
    </span><span style="color: rgba(0, 0, 255, 1)">for</span> (<span style="color: rgba(0, 0, 255, 1)">int</span> i = 0; i &lt; ifaces.length; i++<span style="color: rgba(0, 0, 0, 1)">) {
        NetInterfaceConfig cfg </span>=<span style="color: rgba(0, 0, 0, 1)"> sigar.getNetInterfaceConfig(ifaces[i]);
        </span><span style="color: rgba(0, 0, 255, 1)">if</span> (NetFlags.LOOPBACK_ADDRESS.equals(cfg.getAddress()) || (cfg.getFlags() &amp; NetFlags.IFF_LOOPBACK) != 0
                ||<span style="color: rgba(0, 0, 0, 1)"> NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {
            </span><span style="color: rgba(0, 0, 255, 1)">continue</span><span style="color: rgba(0, 0, 0, 1)">;
        }
        System.out.println(cfg.getName() </span>+ "IP地址:" + cfg.getAddress());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> IP地址</span>
        System.out.println(cfg.getName() + "网关广播地址:" + cfg.getBroadcast());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 网关广播地址</span>
        System.out.println(cfg.getName() + "网卡MAC地址:" + cfg.getHwaddr());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 网卡MAC地址</span>
        System.out.println(cfg.getName() + "子网掩码:" + cfg.getNetmask());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 子网掩码</span>
        System.out.println(cfg.getName() + "网卡描述信息:" + cfg.getDescription());<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 网卡描述信息</span>
        System.out.println(cfg.getName() + "网卡类型" + cfg.getType());<span style="color: rgba(0, 128, 0, 1)">//



        }
}
}

 

到这里就可以获取你电脑相应的信息。
别急还没完！！！


这里会报错，这行代码：usage = sigar.getFileSystemUsage(fs.getDirName());。





我们需要将上面这行代码用 try catch surround 一下问题就解决了，如下：




try {
                usage = sigar.getFileSystemUsage(fs.getDirName());
            } catch (SigarException e) {
                System.out.println("***********");
                continue;
            }