Sigar获取网卡流量信息

在网络应用中，经常要对网卡的流量进行统计分析。

和网卡相关的统计数据主要有：网卡信息（ip地址、子网掩码、mac地址等）、网卡的吞吐量、流量等等。

当然了使用sigar也可以获得这些数据。

下面通过例子说明：

    package lab.sigar;  
      
    import java.util.ArrayList;  
    import java.util.List;  
      
    import org.hyperic.sigar.NetInterfaceConfig;  
    import org.hyperic.sigar.NetInterfaceStat;  
    import org.hyperic.sigar.Sigar;  
    import org.hyperic.sigar.SigarException;  
      
    import com.thoughtworks.xstream.XStream;  
      
    /** 
     * 网卡信息、接口数据、流量 
     *  
     * 使用Sigar获得网卡信息 
     *  
     */  
    public class NetInterfaceData {  
      
        private NetInterfaceConfig config;  
        private NetInterfaceStat stat;  
        private long rxbps;  
        private long txbps;  
      
        public NetInterfaceData() {}  
      
        public void populate(Sigar sigar, String name)  
            throws SigarException {  
      
            config = sigar.getNetInterfaceConfig(name);  
      
            try {  
                  
                long start = System.currentTimeMillis();  
                NetInterfaceStat statStart = sigar.getNetInterfaceStat(name);  
                long rxBytesStart = statStart.getRxBytes();  
                long txBytesStart = statStart.getTxBytes();  
                Thread.sleep(1000);  
                long end = System.currentTimeMillis();  
                NetInterfaceStat statEnd = sigar.getNetInterfaceStat(name);  
                long rxBytesEnd = statEnd.getRxBytes();  
                long txBytesEnd = statEnd.getTxBytes();  
                  
                rxbps = (rxBytesEnd - rxBytesStart)*8/(end-start)*1000;  
                txbps = (txBytesEnd - txBytesStart)*8/(end-start)*1000;  
                stat = sigar.getNetInterfaceStat(name);  
            } catch (SigarException e) {  
                  
            } catch (Exception e) {  
                  
            }  
        }  
      
        public static NetInterfaceData gather(Sigar sigar, String name)  
            throws SigarException {  
          
            NetInterfaceData data = new NetInterfaceData();  
            data.populate(sigar, name);  
            return data;  
        }  
      
        public NetInterfaceConfig getConfig() {  
            return config;  
        }  
      
        public NetInterfaceStat getStat() {  
            return stat;  
        }  
          
          
          
        public long getRxbps() {  
            return rxbps;  
        }  
      
        public long getTxbps() {  
            return txbps;  
        }  
      
        public static void main(String[] args) throws Exception {  
            Sigar sigar = new Sigar();  
            String[] netIfs = sigar.getNetInterfaceList();  
            List netIfList = new ArrayList();  
            for ( String name:netIfs ) {  
                NetInterfaceData netIfData1 = NetInterfaceData.gather(sigar, name);  
                netIfList.add(netIfData1);  
            }  
            XStream xstream = new XStream();  
            xstream.alias("NetInterfaceDatas", List.class);  
            xstream.alias("NetInterfaceData", NetInterfaceData.class);  
            System.out.println(xstream.toXML(netIfList));  
        }  
    }  

输出：

<NetInterfaceDatas>
  <NetInterfaceData>
    <config>
      <name>eth0</name>
      <hwaddr>00:FF:AE:0F:32:92</hwaddr>
      <type>Ethernet</type>
      <description>TAP-Win32 Adapter V9 #2 - ????ü??????ò?????</description>
      <address>0.0.0.0</address>
      <destination>0.0.0.0</destination>
      <broadcast>255.255.255.255</broadcast>
      <netmask>0.0.0.0</netmask>
      <flags>2050</flags>
      <mtu>1500</mtu>
      <metric>0</metric>
    </config>
    <stat>
      <rxBytes>0</rxBytes>
      <rxPackets>0</rxPackets>
      <rxErrors>0</rxErrors>
      <rxDropped>0</rxDropped>
      <rxOverruns>-1</rxOverruns>
      <rxFrame>-1</rxFrame>
      <txBytes>0</txBytes>
      <txPackets>0</txPackets>
      <txErrors>0</txErrors>
      <txDropped>0</txDropped>
      <txOverruns>-1</txOverruns>
      <txCollisions>-1</txCollisions>
      <txCarrier>-1</txCarrier>
      <speed>10000000</speed>
    </stat>
    <rxbps>0</rxbps>
    <txbps>0</txbps>
  </NetInterfaceData>
  <NetInterfaceData>
    <config>
      <name>eth1</name>
      <hwaddr>00:FF:C8:0A:AE:37</hwaddr>
      <type>Ethernet</type>
      <description>eetrust VAdapter - ????ü??????ò?????</description>
      <address>0.0.0.0</address>
      <destination>0.0.0.0</destination>
      <broadcast>255.255.255.255</broadcast>
      <netmask>0.0.0.0</netmask>
      <flags>2050</flags>
      <mtu>1500</mtu>
      <metric>0</metric>
    </config>
    <stat>
      <rxBytes>0</rxBytes>
      <rxPackets>0</rxPackets>
      <rxErrors>0</rxErrors>
      <rxDropped>0</rxDropped>
      <rxOverruns>-1</rxOverruns>
      <rxFrame>-1</rxFrame>
      <txBytes>0</txBytes>
      <txPackets>0</txPackets>
      <txErrors>0</txErrors>
      <txDropped>0</txDropped>
      <txOverruns>-1</txOverruns>
      <txCollisions>-1</txCollisions>
      <txCarrier>-1</txCarrier>
      <speed>10000000</speed>
    </stat>
    <rxbps>0</rxbps>
    <txbps>0</txbps>
  </NetInterfaceData>
  <NetInterfaceData>
    <config>
      <name>eth2</name>
      <hwaddr>00:22:68:5D:C8:52</hwaddr>
      <type>Ethernet</type>
      <description>Realtek PCIe GBE Family Controller - ????ü??????ò?????</description>
      <address>10.3.43.63</address>
      <destination>0.0.0.0</destination>
      <broadcast>10.3.43.255</broadcast>
      <netmask>255.255.255.0</netmask>
      <flags>2115</flags>
      <mtu>1500</mtu>
      <metric>0</metric>
    </config>
    <stat>
      <rxBytes>177337765</rxBytes>
      <rxPackets>295449</rxPackets>
      <rxErrors>0</rxErrors>
      <rxDropped>0</rxDropped>
      <rxOverruns>-1</rxOverruns>
      <rxFrame>-1</rxFrame>
      <txBytes>27724399</txBytes>
      <txPackets>203267</txPackets>
      <txErrors>0</txErrors>
      <txDropped>0</txDropped>
      <txOverruns>-1</txOverruns>
      <txCollisions>-1</txCollisions>
      <txCarrier>-1</txCarrier>
      <speed>100000000</speed>
    </stat>
    <rxbps>2000</rxbps>
    <txbps>2000</txbps>
  </NetInterfaceData>
  <NetInterfaceData>
    <config>
      <name>lo0</name>
      <hwaddr>00:00:00:00:00:00</hwaddr>
      <type>Local Loopback</type>
      <description>MS TCP Loopback interface</description>
      <address>127.0.0.1</address>
      <destination>0.0.0.0</destination>
      <broadcast>0.0.0.0</broadcast>
      <netmask>255.0.0.0</netmask>
      <flags>73</flags>
      <mtu>1520</mtu>
      <metric>0</metric>
    </config>
    <stat>
      <rxBytes>36535999</rxBytes>
      <rxPackets>350095</rxPackets>
      <rxErrors>0</rxErrors>
      <rxDropped>0</rxDropped>
      <rxOverruns>-1</rxOverruns>
      <rxFrame>-1</rxFrame>
      <txBytes>36535999</txBytes>
      <txPackets>350031</txPackets>
      <txErrors>0</txErrors>
      <txDropped>0</txDropped>
      <txOverruns>-1</txOverruns>
      <txCollisions>-1</txCollisions>
      <txCarrier>-1</txCarrier>
      <speed>10000000</speed>
    </stat>
    <rxbps>1000</rxbps>
    <txbps>1000</txbps>
  </NetInterfaceData>
</NetInterfaceDatas>

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