本文实例讲述了java获取服务器基本信息的方法。分享给大家供大家参考。具体如下:
利用第三方的jar包:(Hyperic-hq官方网站:http://www.hyperic.com) 通过Hyperic-hq产品的基础包sigar.jar来实现服务器状态数据的获取。Sigar.jar包是通过本地方法来调用操作系统API来获取系统相关数据。Windows操作系统下Sigar.jar依赖sigar-amd64-winnt.dll或sigar-x86-winnt.dll,linux 操作系统下则依赖libsigar-amd64-linux.so或libsigar-x86-linux.so
import java.net.InetAddress;
import java.net.UnknownHostException;
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.SigarNotImplementedException;
import org.hyperic.sigar.Swap;
public class SysInfo {
// 1.CPU资源信息 // a)CPU数量(单位:个)
public static int getCpuCount() throws SigarException {
Sigar sigar = new Sigar();
try {
return sigar.getCpuInfoList().length;
} finally {
sigar.close();
}
} // b)CPU的总量(单位:HZ)及CPU的相关信息
public void getCpuTotal() {
Sigar sigar = new Sigar();
CpuInfo[] infos;
try {
infos = sigar.getCpuInfoList();
for (int i = 0; i < infos.length; i++) {// 不管是单块CPU还是多CPU都适用
CpuInfo info = infos[i];
System.out.println(\"mhz=\" + info.getMhz());// CPU的总量MHz
System.out.println(\"vendor=\" + info.getVendor());// 获得CPU的卖主,如:Intel
System.out.println(\"model=\" + info.getModel());// 获得CPU的类别,如:Celeron
System.out.println(\"cache size=\" + info.getCacheSize());// 缓冲存储器数量
}
} catch (SigarException e) {
e.printStackTrace();
}
} // c)CPU的用户使用量、系统使用剩余量、总的剩余量、总的使用占用量等(单位:100%)
public void testCpuPerc() {
Sigar sigar = new Sigar();
// 方式一,主要是针对一块CPU的情况
CpuPerc cpu;
try {
cpu = sigar.getCpuPerc();
printCpuPerc(cpu);
} catch (SigarException e) {
e.printStackTrace();
}
// 方式二,不管是单块CPU还是多CPU都适用
CpuPerc cpuList[] = null;
try {
cpuList = sigar.getCpuPercList();
} catch (SigarException e) {
e.printStackTrace();
return;
}
for (int i = 0; i < cpuList.length; i++) {
printCpuPerc(cpuList[i]);
}
} private void printCpuPerc(CpuPerc cpu) {
System.out.println(\"User :\" + CpuPerc.format(cpu.getUser()));// 用户使用率
System.out.println(\"Sys :\" + CpuPerc.format(cpu.getSys()));// 系统使用率
System.out.println(\"Wait :\" + CpuPerc.format(cpu.getWait()));// 当前等待率
System.out.println(\"Nice :\" + CpuPerc.format(cpu.getNice()));//
System.out.println(\"Idle :\" + CpuPerc.format(cpu.getIdle()));// 当前空闲率
System.out.println(\"Total :\" + CpuPerc.format(cpu.getCombined()));// 总的使用率
} // 2.内存资源信息
public void getPhysicalMemory() {
// a)物理内存信息
Sigar sigar = new Sigar();
Mem mem;
try {
mem = sigar.getMem();
// 内存总量
System.out.println(\"Total = \" + mem.getTotal() / 1024L + \"K av\");
// 当前内存使用量
System.out.println(\"Used = \" + mem.getUsed() / 1024L + \"K used\");
// 当前内存剩余量
System.out.println(\"Free = \" + mem.getFree() / 1024L + \"K free\"); // b)系统页面文件交换区信息
Swap swap = sigar.getSwap();
// 交换区总量
System.out.println(\"Total = \" + swap.getTotal() / 1024L + \"K av\");
// 当前交换区使用量
System.out.println(\"Used = \" + swap.getUsed() / 1024L + \"K used\");
// 当前交换区剩余量
System.out.println(\"Free = \" + swap.getFree() / 1024L + \"K free\");
} catch (SigarException e) {
e.printStackTrace();
}
} // 3.操作系统信息 // a)取到当前操作系统的名称:
public String getPlatformName() {
String hostname = \"\";
try {
hostname = InetAddress.getLocalHost().getHostName();
} catch (Exception exc) {
Sigar sigar = new Sigar();
try {
hostname = sigar.getNetInfo().getHostName();
} catch (SigarException e) {
hostname = \"localhost.unknown\";
} finally {
sigar.close();
}
}
return hostname;
} // b)取当前操作系统的信息
public void testGetOSInfo() {
OperatingSystem OS = OperatingSystem.getInstance();
// 操作系统内核类型如: 386、486、586等x86
System.out.println(\"OS.getArch() = \" + OS.getArch());
System.out.println(\"OS.getCpuEndian() = \" + OS.getCpuEndian());//
System.out.println(\"OS.getDataModel() = \" + OS.getDataModel());//
// 系统描述
System.out.println(\"OS.getDescription() = \" + OS.getDescription());
System.out.println(\"OS.getMachine() = \" + OS.getMachine());//
// 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(\"OS.getVendor() = \" + OS.getVendor());
// 卖主名称
System.out
.println(\"OS.getVendorCodeName() = \" + OS.getVendorCodeName());
// 操作系统名称
System.out.println(\"OS.getVendorName() = \" + OS.getVendorName());
// 操作系统卖主类型
System.out.println(\"OS.getVendorVersion() = \" + OS.getVendorVersion());
// 操作系统的版本号
System.out.println(\"OS.getVersion() = \" + OS.getVersion());
} // c)取当前系统进程表中的用户信息
public void testWho() {
try {
Sigar sigar = new Sigar();
org.hyperic.sigar.Who[] who = sigar.getWhoList();
if (who != null && who.length > 0) {
for (int i = 0; i < who.length; i++) {
System.out.println(\"\\n~~~~~~~~~\" + String.valueOf(i)+ \"~~~~~~~~~\");
org.hyperic.sigar.Who _who = who[i];
System.out.println(\"getDevice() = \" + _who.getDevice());
System.out.println(\"getHost() = \" + _who.getHost());
System.out.println(\"getTime() = \" + _who.getTime());
// 当前系统进程表中的用户名
System.out.println(\"getUser() = \" + _who.getUser());
}
}
} catch (SigarException e) {
e.printStackTrace();
}
} // 4.资源信息(主要是硬盘) // a)取硬盘已有的分区及其详细信息(通过sigar.getFileSystemList()来获得FileSystem列表对象,然后对其进行编历):
public void testFileSystemInfo() throws Exception {
Sigar sigar = new Sigar();
FileSystem fslist[] = sigar.getFileSystemList();
//String dir = System.getProperty(\"user.home\");// 当前用户文件夹路径
for (int i = 0; i < fslist.length; i++) {
System.out.println(\"\\n~~~~~~~~~~\" + i + \"~~~~~~~~~~\");
FileSystem fs = fslist[i];
// 分区的盘符名称
System.out.println(\"fs.getDevName() = \" + fs.getDevName());
// 分区的盘符名称
System.out.println(\"fs.getDirName() = \" + fs.getDirName());
System.out.println(\"fs.getFlags() = \" + fs.getFlags());//
// 文件系统类型,比如 FAT32、NTFS
System.out.println(\"fs.getSysTypeName() = \" + fs.getSysTypeName());
// 文件系统类型名,比如本地硬盘、光驱、网络文件系统等
System.out.println(\"fs.getTypeName() = \" + fs.getTypeName());
// 文件系统类型
System.out.println(\"fs.getType() = \" + fs.getType());
FileSystemUsage usage = null;
try {
usage = sigar.getFileSystemUsage(fs.getDirName());
} catch (SigarException e) {
if (fs.getType() == 2)
throw e;
continue;
}
switch (fs.getType()) {
case 0: // TYPE_UNKNOWN :未知
break;
case 1: // TYPE_NONE
break;
case 2: // TYPE_LOCAL_DISK : 本地硬盘
// 文件系统总大小
System.out.println(\" Total = \" + usage.getTotal() + \"KB\");
// 文件系统剩余大小
System.out.println(\" Free = \" + usage.getFree() + \"KB\");
// 文件系统可用大小
System.out.println(\" Avail = \" + usage.getAvail() + \"KB\");
// 文件系统已经使用量
System.out.println(\" Used = \" + usage.getUsed() + \"KB\");
double usePercent = usage.getUsePercent() * 100D;
// 文件系统资源的利用率
System.out.println(\" Usage = \" + usePercent + \"%\");
break;
case 3:// TYPE_NETWORK :网络
break;
case 4:// TYPE_RAM_DISK :闪存
break;
case 5:// TYPE_CDROM :光驱
break;
case 6:// TYPE_SWAP :页面交换
break;
}
System.out.println(\" DiskReads = \" + usage.getDiskReads());
System.out.println(\" DiskWrites = \" + usage.getDiskWrites());
}
return;
} // 5.网络信息 // a)当前机器的正式域名
public String getFQDN() {
Sigar sigar = null;
try {
return InetAddress.getLocalHost().getCanonicalHostName();
} catch (UnknownHostException e) {
try {
sigar = new Sigar();
return sigar.getFQDN();
} catch (SigarException ex) {
return null;
} finally {
sigar.close();
}
}
} // b)取到当前机器的IP地址
public String getDefaultIpAddress() {
String address = null;
try {
address = InetAddress.getLocalHost().getHostAddress();
// 没有出现异常而正常当取到的IP时,如果取到的不是网卡循回地址时就返回
// 否则再通过Sigar工具包中的方法来获取
if (!NetFlags.LOOPBACK_ADDRESS.equals(address)) {
return address;
}
} catch (UnknownHostException e) {
// hostname not in DNS or /etc/hosts
}
Sigar sigar = new Sigar();
try {
address = sigar.getNetInterfaceConfig().getAddress();
} catch (SigarException e) {
address = NetFlags.LOOPBACK_ADDRESS;
} finally {
sigar.close();
}
return address;
} // c)取到当前机器的MAC地址
public String getMAC() {
Sigar sigar = null;
try {
sigar = new Sigar();
String[] ifaces = sigar.getNetInterfaceList();
String hwaddr = null;
for (int i = 0; i < ifaces.length; i++) {
NetInterfaceConfig cfg = sigar.getNetInterfaceConfig(ifaces[i]);
if (NetFlags.LOOPBACK_ADDRESS.equals(cfg.getAddress())
|| (cfg.getFlags() & NetFlags.IFF_LOOPBACK) != 0
|| NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {
continue;
}
/*
* 如果存在多张网卡包括虚拟机的网卡,默认只取第一张网卡的MAC地址,如果要返回所有的网卡(包括物理的和虚拟的)则可以修改方法的返回类型为数组或Collection
* ,通过在for循环里取到的多个MAC地址。
*/
hwaddr = cfg.getHwaddr();
break;
}
return hwaddr != null hwaddr : null;
} catch (Exception e) {
return null;
} finally {
if (sigar != null)
sigar.close();
}
} // d)获取网络流量等信息
public void testNetIfList() throws Exception {
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);
print(\"\\nname = \" + name);// 网络设备名
print(\"Address = \" + ifconfig.getAddress());// IP地址
print(\"Netmask = \" + ifconfig.getNetmask());// 子网掩码
if ((ifconfig.getFlags() & 1L) <= 0L) {
print(\"!IFF_UP...skipping getNetInterfaceStat\");
continue;
}
try {
NetInterfaceStat ifstat = sigar.getNetInterfaceStat(name);
print(\"RxPackets = \" + ifstat.getRxPackets());// 接收的总包裹数
print(\"TxPackets = \" + ifstat.getTxPackets());// 发送的总包裹数
print(\"RxBytes = \" + ifstat.getRxBytes());// 接收到的总字节数
print(\"TxBytes = \" + ifstat.getTxBytes());// 发送的总字节数
print(\"RxErrors = \" + ifstat.getRxErrors());// 接收到的错误包数
print(\"TxErrors = \" + ifstat.getTxErrors());// 发送数据包时的错误数
print(\"RxDropped = \" + ifstat.getRxDropped());// 接收时丢弃的包数
print(\"TxDropped = \" + ifstat.getTxDropped());// 发送时丢弃的包数
} catch (SigarNotImplementedException e) {
} catch (SigarException e) {
print(e.getMessage());
}
}
} void print(String msg) {
System.out.println(msg);
} // e)一些其他的信息
public void getEthernetInfo() {
Sigar sigar = null;
try {
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())
|| (cfg.getFlags() & NetFlags.IFF_LOOPBACK) != 0
|| NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {
continue;
}
System.out.println(\"cfg.getAddress() = \" + cfg.getAddress());// IP地址
System.out
.println(\"cfg.getBroadcast() = \" + cfg.getBroadcast());// 网关广播地址
System.out.println(\"cfg.getHwaddr() = \" + cfg.getHwaddr());// 网卡MAC地址
System.out.println(\"cfg.getNetmask() = \" + cfg.getNetmask());// 子网掩码
System.out.println(\"cfg.getDescription() = \"
+ cfg.getDescription());// 网卡描述信息
System.out.println(\"cfg.getType() = \" + cfg.getType());//
System.out.println(\"cfg.getDestination() = \"
+ cfg.getDestination());
System.out.println(\"cfg.getFlags() = \" + cfg.getFlags());//
System.out.println(\"cfg.getMetric() = \" + cfg.getMetric());
System.out.println(\"cfg.getMtu() = \" + cfg.getMtu());
System.out.println(\"cfg.getName() = \" + cfg.getName());
System.out.println();
}
} catch (Exception e) {
System.out.println(\"Error while creating GUID\" + e);
} finally {
if (sigar != null)
sigar.close();
}
}
}
希望本文所述对大家的java程序设计有所帮助。
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