java获取服务器基本信息的方法

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(); 
 } 
}
}