这个库对于获得cpu,ram和其他人员来说真是太棒了.但是,我不知道如何获得网络速度.那意味着.在一段时间内发送和接收多少数据会丢到网络购物车中？有办法给我这些数据吗？

这可能是我在寻找什么吗？

Tcp stat = sigar.getTcp();

stat.getInSegs() + " segments received"

stat.getOutSegs() + " segments send out"

如果无法使用sigar,还有其他库可以使用吗？

感谢帮助

解决方法:

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, Destination=0.0.0.0}

totalrx(download): 4.7K

totaltx(upload): 154

totalrx(download): 1.4K

totaltx(upload): 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);

}

}

标签：network-programming,sigar,java

来源： https://codeday.me/bug/20191201/2079019.html