在開發中，我們需要獲取JVM中的信息，以及操作系統信息，內存信息，CPU信息，磁盤信息，網絡信息等，通過Java的API不能獲取內存等信息，需要sigar的第三方依賴包。
①：加入依賴
<dependency> <groupId>org.hyperic.sigar</groupId> <artifactId>com.springsource.org.hyperic.sigar</artifactId> <version>1.6.3</version> </dependency> <dependency> <groupId>org.kaazing</groupId> <artifactId>sigar.dist</artifactId> <version>1.0.0.0</version> <classifier>distribution</classifier> <type>zip</type> </dependency>
②：將POM下載的sigar.dist壓縮包中的sigar 系統文件放到 C:\Program Files\Java\jdk1.8.0_20\bin中 即{JAVA_HOME}/bin下
③ 相應的工具方法
private static void ethernet() throws SigarException {
Sigar sigar = null;
sigar = new Sigar();
String[] ifaces = sigar.getNetInterfaceList();
for (int i = 0; i < ifaces.length; i++) {
NetInterfaceConfig cfg = sigar.getNetInterfaceConfig(ifaces[i]);
if(NetFlags.LOOPBACK_ADDRESS.equals(cfg.getAddress())
|| NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {
continue;
}
System.out.println(cfg.getName() + "IP地址:" + cfg.getAddress());
System.out.println(cfg.getName() + "網關廣播地址:" + cfg.getBroadcast());
System.out.println(cfg.getName() + "網卡MAC地址:" + cfg.getHwaddr());
System.out.println(cfg.getName() + "子網掩碼:" + cfg.getNetmask());
System.out.println(cfg.getName() + "網卡描述信息:" + cfg.getDescription());
System.out.println(cfg.getName() + "網卡類型:" + cfg.getType());
}
}
private static void net() throws SigarException {
Sigar sigar = new Sigar();
String[] ifNames = sigar.getNetInterfaceList();
for (int i = 0; i < ifNames.length; i++) {
String name = ifNames[i];
NetInterfaceConfig ifConfig = sigar.getNetInterfaceConfig(name);
System.out.println("網絡設備名:" + name);
System.out.println("IP地址:" + ifConfig.getAddress());
System.out.println("子網掩碼:" + ifConfig.getNetmask());
if((ifConfig.getFlags() & 1L) <= 0) {
System.out.println("!IFF_UP...skipping getNetInterfaceStat");
continue;
}
NetInterfaceStat ifStat = sigar.getNetInterfaceStat(name);
System.out.println(name + "接收的總包裹數:" + ifStat.getRxPackets());
System.out.println(name + "發送的總包裹數:" + ifStat.getTxPackets());
System.out.println(name + "接收到的總字節數:" + ifStat.getRxBytes());
System.out.println(name + "發送的總字節數:" + ifStat.getTxBytes());
System.out.println(name + "接收到的錯誤包數:" + ifStat.getRxErrors());
System.out.println(name + "發送的錯誤包數:" + ifStat.getTxErrors());
System.out.println(name + "接收時丟棄的包數:" + ifStat.getRxDropped());
System.out.println(name + "發送時丟棄的包數:" + ifStat.getTxDropped());
}
}
private static void file() throws SigarException {
Sigar sigar = new Sigar();
FileSystem[] fsList = sigar.getFileSystemList();
try {
for (int i = 0; i < fsList.length; i++) {
System.out.println("分區的盤符名稱" + i);
FileSystem fs = fsList[i];
//分區的盤符名稱
System.out.println("盤符名稱:" + fs.getDevName());
System.out.println("盤符路徑:" + fs.getDirName());
System.out.println("盤符標志:" + fs.getFlags());
System.out.println("盤符類型:" + fs.getSysTypeName());
//盤符類型名,比如本地硬盤，光驅，網絡文件系統等
System.out.println("盤符類型名:" + fs.getTypeName());
System.out.println("盤符文件系統類型:" + fs.getType());
FileSystemUsage usage = null;
usage = sigar.getFileSystemUsage(fs.getDirName());
switch (fs.getType()) {
case 0: //TYPE_UNKNOEN 未知
break;
case 1: //TYPE_NONE
break;
case 2: //TYPE_LOCAL_DISK 本地硬盤
//文件系統總大小
System.out.println(fs.getDevName() +"總大小:" + usage.getTotal() +"");
//文件系統剩余大小
System.out.println(fs.getDevName() +"剩余大小:" + usage.getFree() +"");
//文件系統可用大小
System.out.println(fs.getDevName() +"可用大小:" + usage.getAvail() +"");
//文件系統已經使用量
System.out.println(fs.getDevName() +"已經使用量:" + usage.getUsed() +"");
double usePercent = usage.getUsePercent() * 100D;
System.out.println(fs.getDevName() +"資源的利用率:" + usePercent +"%");
break;
case 3: //TYPE_NETWORK 網絡
break;
case 4: //TYPE_RAM_DISK 閃存
break;
case 5: //TYPE_CDROM 光驅
break;
case 6: //TYPE_SWAP 頁面交換
break;
}
System.out.println(fs.getDevName() +"讀出:" + usage.getDiskReads());
System.out.println(fs.getDevName() +"寫入:" + usage.getDiskWrites());
}
}catch (Exception e) {
e.printStackTrace();
}
}
private static void who() throws SigarException {
Sigar sigar = new Sigar();
Who[] who = sigar.getWhoList();
if(who != null && who.length > 0) {
for (int i = 0; i < who.length; i++) {
//System.out.println("當前系統進程表中的用戶名:" + String.valueOf(i));
Who _who = who[i];
System.out.println("用戶控制台:" + _who.getDevice());
System.out.println("用戶host:" + _who.getHost());
//System.out.println("getTime():" + _who.getTime());
System.out.println("當前系統進程表中的用戶名:" + _who.getUser());
}
}
}
private static void os() {
OperatingSystem OS = OperatingSystem.getInstance();
//操作系統內核類型如: 386 486 586等x86
System.out.println("操作系統:" + OS.getArch());
System.out.println("操作系統CpuEndian:" + OS.getCpuEndian());
System.out.println("操作系統DataModel:" + OS.getDataModel());
//系統描述
System.out.println("操作系統的描述:" + OS.getDescription());
//操作系統類型
// System.out.println("OS.getName():" + OS.getName());
// System.out.println("OS.getPatchLevel():" + OS.getPatchLevel());
//操作系統的賣主
System.out.println("操作系統的賣主:" + OS.getVendor());
System.out.println("操作系統的賣主名:" + OS.getVendorCodeName());
//操作系統名稱
System.out.println("操作系統名稱:" + OS.getVendorName());
//操作系統賣主類型
System.out.println("操作系統賣主類型:" + OS.getVendorVersion());
//操作系統的版本號
System.out.println("操作系統的版本號:" + OS.getVersion());
}
private static void memory() throws SigarException {
Sigar sigar = new Sigar();
Mem mem = sigar.getMem();
//內存總量
System.out.println("內存總量:" + mem.getTotal() / 1024L + "K av");
//當前內存使用量
System.out.println("當前內存使用量:" + mem.getUsed() / 1024L + "K used");
//當前內存剩余量
System.out.println("當前內存剩余量:" + mem.getFree() / 1024L + "K free");
Swap swap = sigar.getSwap();
//交換區總量
System.out.println("交換區總量:" + swap.getTotal() / 1024L + "K av");
//當前交換區使用量
System.out.println("當前交換區使用量:" + swap.getUsed() / 1024L + "K used");
//當前交換區剩余量
System.out.println("當前交換區剩余量:" + swap.getFree() / 1024L + "K free");
}
private static void cpu() throws SigarException {
Sigar sigar = new Sigar();
CpuInfo[] infos = sigar.getCpuInfoList();
CpuPerc[] cpuList = null;
cpuList = sigar.getCpuPercList();
for (int i = 0; i < infos.length; i++) { //不管是單塊CPU還是多CPU都適用
CpuInfo info = infos[i];
System.out.println("第" + (i+1) + "塊CPU信息");
System.out.println("CPU總量MHz:" + info.getMhz());
System.out.println("CPU生產商:" + info.getVendor());
System.out.println("CPU類別:" + info.getModel());
System.out.println("CPU緩存數量:" + info.getCacheSize());
printCpuPerc(cpuList[i]);
}
}
private static void printCpuPerc(CpuPerc cpuPerc) {
System.out.println("CPU用戶使用率:" + CpuPerc.format(cpuPerc.getUser()) );
System.out.println("CPU系統使用率:" + CpuPerc.format(cpuPerc.getSys()) );
System.out.println("CPU當前等待率:" + CpuPerc.format(cpuPerc.getWait()) );
System.out.println("CPU當前錯誤率:" + CpuPerc.format(cpuPerc.getNice()) );
System.out.println("CPU當前空閑率:" + CpuPerc.format(cpuPerc.getIdle()) );
System.out.println("CPU總的使用率:" + CpuPerc.format(cpuPerc.getCombined()) );
}
private static void property() throws UnknownHostException {
Runtime r = Runtime.getRuntime();
Properties props = System.getProperties();
InetAddress addr;
addr = InetAddress.getLocalHost();
String ip = addr.getHostAddress();
Map<String, String> map = System.getenv();
String userName = map.get("USERNAME"); //獲取用戶名
String computerName = map.get("COMPUTERNAME"); //獲取計算機名
String userDomain = map.get("USERDOMAIN"); //獲取計算機域名
System.out.println("用戶名:" + userName);
System.out.println("計算機名:" + computerName);
System.out.println("計算機域名:" + userDomain);
System.out.println("本地IP地址:"+ ip );
System.out.println("本地主機名:" + addr.getHostName());
System.out.println("JVM可以使用的總內存:" + r.totalMemory());
System.out.println("JVM可以使用的剩余內存:" + r.freeMemory());
System.out.println("JVM可以使用的處理器個數:" + r.availableProcessors());
System.out.println("Java的運行環境版本:" + props.getProperty("java.version"));
System.out.println("Java的運行環境供應商:" + props.getProperty("java.vendor"));
System.out.println("Java供應商的URL:" + props.getProperty("java.vendor.url"));
System.out.println("Java的安裝路徑:" + props.getProperty("java.home"));
System.out.println("Java的虛擬機規范版本:" + props.getProperty("java.vm.specification.version"));
System.out.println("Java的虛擬機規范供應商:" + props.getProperty("java.vm.specification.vendor"));
System.out.println("Java的虛擬機規范名稱:" + props.getProperty("java.vm.specification.name"));
System.out.println("Java的虛擬機實現版本:" + props.getProperty("java.vm.version"));
System.out.println("Java的虛擬機實現供應商:" + props.getProperty("java.vm.vendor"));
System.out.println("Java的虛擬機實現名稱:" + props.getProperty("java.vm.name"));
System.out.println("Java運行時環境規范版本:" + props.getProperty("java.specification.version"));
System.out.println("Java運行時環境規范供應商:" + props.getProperty("java.specification.vendor"));
System.out.println("Java運行時環境規范名稱:" + props.getProperty("java.specification.name"));
System.out.println("Java的類格式版本號:" + props.getProperty("java.class.version"));
System.out.println("Java的類路徑:" + props.getProperty("java.class.path"));
System.out.println("加載庫時搜索的路徑列表:" + props.getProperty("java.library.path"));
System.out.println("默認的臨時文件路徑:" + props.getProperty("java.io.tmpdir"));
System.out.println("一個或多個擴展目錄的路徑:" + props.getProperty("java.ext.dirs"));
System.out.println("操作系統的名稱:" + props.getProperty("os.name"));
System.out.println("操作系統的架構:" + props.getProperty("os.arch"));
System.out.println("操作系統的版本:" + props.getProperty("os.version"));
System.out.println("文件分隔符:" + props.getProperty("file.separator"));
System.out.println("路徑分隔符:" + props.getProperty("path.separator"));
System.out.println("行分隔符:" + props.getProperty("line.separator"));
System.out.println("用戶的賬戶名稱:" + props.getProperty("user.name"));
System.out.println("用戶的主目錄:" + props.getProperty("user.home"));
System.out.println("用戶的當前工作目錄:" + props.getProperty("user.dir"));
}
④：測試方法
public static void main(String[] args) { try { //System信息,從JVM獲取 property(); System.out.println("-----------------------------------"); //cpu信息 cpu(); System.out.println("-----------------------------------"); //內存信息 memory(); System.out.println("-----------------------------------"); //操作系統信息 os(); System.out.println("-----------------------------------"); //用戶信息 who(); System.out.println("-----------------------------------"); //文件系統信息 file(); System.out.println("-----------------------------------"); //網絡信息 net(); System.out.println("-----------------------------------"); //以太網信息 ethernet(); System.out.println("-----------------------------------"); }catch(Exception e) { e.printStackTrace(); } }