实现snmp的trap操作，只需要获取一些简单的信息就可以了

fenfengxiong6842 2017-04-20 08:13:45

我在myeclise上运行了接收器的函数
package com.trap;
import java.io.IOException;
import java.net.UnknownHostException;
import java.util.Vector;

import org.snmp4j.CommandResponder;
import org.snmp4j.CommandResponderEvent;
import org.snmp4j.MessageDispatcherImpl;
import org.snmp4j.Snmp;
import org.snmp4j.TransportMapping;
import org.snmp4j.mp.MPv1;
import org.snmp4j.mp.MPv2c;
import org.snmp4j.mp.MPv3;
import org.snmp4j.security.SecurityModels;
import org.snmp4j.security.SecurityProtocols;
import org.snmp4j.security.USM;
import org.snmp4j.smi.Address;
import org.snmp4j.smi.GenericAddress;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.TcpAddress;
import org.snmp4j.smi.UdpAddress;
import org.snmp4j.smi.VariableBinding;
import org.snmp4j.transport.DefaultTcpTransportMapping;
import org.snmp4j.transport.DefaultUdpTransportMapping;
import org.snmp4j.util.MultiThreadedMessageDispatcher;
import org.snmp4j.util.ThreadPool;

/**
* 演示SNMP Trap多线程接收解析信息
*
* @blog http://www.micmiu.com
* @author Michael
*/
public class MultiThreadedTrapReceiver implements CommandResponder {
private MultiThreadedMessageDispatcher dispatcher;
private Snmp snmp = null;
private Address listenAddress;
private ThreadPool threadPool;

public MultiThreadedTrapReceiver() {
}

private void init() throws UnknownHostException, IOException {
threadPool = ThreadPool.create("TrapPool", 2);
dispatcher = new MultiThreadedMessageDispatcher(threadPool,
new MessageDispatcherImpl());
listenAddress = GenericAddress.parse(System.getProperty(
"snmp4j.listenAddress", "udp:127.0.0.1/162"));
TransportMapping transport;
if (listenAddress instanceof UdpAddress) {
transport = new DefaultUdpTransportMapping(
(UdpAddress) listenAddress);
} else {
transport = new DefaultTcpTransportMapping(
(TcpAddress) listenAddress);
}
snmp = new Snmp(dispatcher, transport);
snmp.getMessageDispatcher().addMessageProcessingModel(new MPv1());
snmp.getMessageDispatcher().addMessageProcessingModel(new MPv2c());
snmp.getMessageDispatcher().addMessageProcessingModel(new MPv3());
USM usm = new USM(SecurityProtocols.getInstance(), new OctetString(
MPv3.createLocalEngineID()), 0);
SecurityModels.getInstance().addSecurityModel(usm);
snmp.listen();
}

public void run() {
System.out.println("----> Trap Receiver run ... <----");
try {
init();
snmp.addCommandResponder(this);
System.out.println("----> 开始监听端口，等待Trap message <----");
} catch (Exception ex) {
ex.printStackTrace();
}
}

@SuppressWarnings("unchecked")
public void processPdu(CommandResponderEvent event) {
System.out.println("----> 开始解析ResponderEvent: <----");
if (event == null || event.getPDU() == null) {
System.out.println("[Warn] ResponderEvent or PDU is null");
return;
}
Object lt = null;
Object Vector = lt;
Object gt = null;
Object VariableBinding = gt;
Vector<? extends VariableBinding> vbVect = event.getPDU().getVariableBindings();
for (VariableBinding vb : vbVect) {
System.out.println(vb.getOid() + " = " + vb.getVariable());
}
System.out.println("----> 本次ResponderEvent 解析结束 <----");
}

public static void main(String[] args) {
MultiThreadedTrapReceiver trapReceiver = new MultiThreadedTrapReceiver();
trapReceiver.run();
}
}
报错Address already in use: Cannot bind
请教下，我只是开启了snmp的服务，是不是还需要做啥操作，或者说需要在哪做操作，还是说代码问题，
请教大神指导了

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