Sigar网速
这个lib对于获得cpu，ram和其他工作人员来说真是太棒了。 但是，我无法弄清楚，如何获得网络速度。 这意味着。 在一段时间内发送和接收的数据量是多少？ 有没有办法给我这个数据？
这可能是我要搜索的内容吗？
Tcp stat = sigar.getTcp(); stat.getInSegs() + " segments received" stat.getOutSegs() + " segments send out" 如果在sigar中没有办法，是否还有其他lib可供使用？
感谢帮助
输出：
{DefaultGateway = 193.171.36.1，PrimaryDns = 140.78.2.62，SecondaryDns = 140.78.3.62，DomainName =，HostName = Schneider-PC}
{Name = eth0，Description = WAN Miniport（IPv6），Metric = 0，Type = Ethernet，Address = 0.0.0.0，Mtu = 1500，Netmask = 0.0.0.0，Flags = 65，Broadcast = 0.0.0.0，Hwaddr = 34 ：F8：20：52：41：53，目的地= 0.0.0.0}
totalrx（下载）：4.7K
totaltx（上传）：154
totalrx（下载）：1.4K
totaltx（上传）：180
码：
import java.util.HashMap; import java.util.LinkedList; import java.util.List; import java.util.Map; import java.util.Map.Entry; import org.hyperic.sigar.NetFlags; import org.hyperic.sigar.NetInterfaceConfig; import org.hyperic.sigar.NetInterfaceStat; import org.hyperic.sigar.Sigar; import org.hyperic.sigar.SigarException; /** * @author Headgrowe * */ public class NetworkData { static Map rxCurrentMap = new HashMap(); static Map> rxChangeMap = new HashMap>(); static Map txCurrentMap = new HashMap(); static Map> txChangeMap = new HashMap>(); private static Sigar sigar; /** * @throws InterruptedException * @throws SigarException * */ public NetworkData(Sigar s) throws SigarException, InterruptedException { sigar = s; getMetric(); System.out.println(networkInfo()); Thread.sleep(1000); } public static void main(String[] args) throws SigarException, InterruptedException { new NetworkData(new Sigar()); NetworkData.newMetrickThread(); } public static String networkInfo() throws SigarException { String info = sigar.getNetInfo().toString(); info += "\n"+ sigar.getNetInterfaceConfig().toString(); return info; } public static String getDefaultGateway() throws SigarException { return sigar.getNetInfo().getDefaultGateway(); } public static void newMetricThread() throws SigarException, InterruptedException { while (true) { Long[] m = getMetric(); long totalrx = m[0]; long totaltx = m[1]; System.out.print("totalrx(download): "); System.out.println("\t" + Sigar.formatSize(totalrx)); System.out.print("totaltx(upload): "); System.out.println("\t" + Sigar.formatSize(totaltx)); System.out.println("-----------------------------------"); Thread.sleep(1000); } } public static Long[] getMetric() throws SigarException { for (String ni : sigar.getNetInterfaceList()) { // System.out.println(ni); NetInterfaceStat netStat = sigar.getNetInterfaceStat(ni); NetInterfaceConfig ifConfig = sigar.getNetInterfaceConfig(ni); String hwaddr = null; if (!NetFlags.NULL_HWADDR.equals(ifConfig.getHwaddr())) { hwaddr = ifConfig.getHwaddr(); } if (hwaddr != null) { long rxCurrenttmp = netStat.getRxBytes(); saveChange(rxCurrentMap, rxChangeMap, hwaddr, rxCurrenttmp, ni); long txCurrenttmp = netStat.getTxBytes(); saveChange(txCurrentMap, txChangeMap, hwaddr, txCurrenttmp, ni); } } long totalrx = getMetricData(rxChangeMap); long totaltx = getMetricData(txChangeMap); for (List l : rxChangeMap.values()) l.clear(); for (List l : txChangeMap.values()) l.clear(); return new Long[] { totalrx, totaltx }; } private static long getMetricData(Map> rxChangeMap) { long total = 0; for (Entry> entry : rxChangeMap.entrySet()) { int average = 0; for (Long l : entry.getValue()) { average += l; } total += average / entry.getValue().size(); } return total; } private static void saveChange(Map currentMap, Map> changeMap, String hwaddr, long current, String ni) { Long oldCurrent = currentMap.get(ni); if (oldCurrent != null) { List list = changeMap.get(hwaddr); if (list == null) { list = new LinkedList (); changeMap.put(hwaddr, list); } list.add((current - oldCurrent)); } currentMap.put(ni, current); } }