原文:http://www.iteye.com/topic/308836
接收Trap報文信息的類::
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;
/**
* 本類用於監聽代理進程的Trap信息
*
* @author zhanjia
*
*/
public class MultiThreadedTrapReceiver implements CommandResponder {
private MultiThreadedMessageDispatcher dispatcher;
private Snmp snmp = null;
private Address listenAddress;
private ThreadPool threadPool;
public MultiThreadedTrapReceiver() {
// BasicConfigurator.configure();
}
private void init() throws UnknownHostException, IOException {
threadPool = ThreadPool.create("Trap", 2);
dispatcher = new MultiThreadedMessageDispatcher(threadPool,
new MessageDispatcherImpl());
listenAddress = GenericAddress.parse(System.getProperty(
"snmp4j.listenAddress", "udp:192.168.1.23/162")); // 本地IP與監聽端口
TransportMapping transport;
// 對TCP與UDP協議進行處理
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() {
try {
init();
snmp.addCommandResponder(this);
System.out.println("開始監聽Trap信息!");
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* 實現CommandResponder的processPdu方法, 用於處理傳入的請求、PDU等信息
* 當接收到trap時,會自動進入這個方法
*
* @param respEvnt
*/
public void processPdu(CommandResponderEvent respEvnt) {
// 解析Response
if (respEvnt != null && respEvnt.getPDU() != null) {
Vector<VariableBinding> recVBs = (Vector<VariableBinding>)respEvnt.getPDU().getVariableBindings();
for (int i = 0; i < recVBs.size(); i++) {
VariableBinding recVB = recVBs.elementAt(i);
System.out.println(recVB.getOid() + " : " + recVB.getVariable());
}
}
}
public static void main(String[] args) {
MultiThreadedTrapReceiver multithreadedtrapreceiver = new MultiThreadedTrapReceiver();
multithreadedtrapreceiver.run();
}
}
發送Trap報文信息的類:
import java.io.IOException;
import java.util.Vector;
import org.snmp4j.CommunityTarget;
import org.snmp4j.PDU;
import org.snmp4j.Snmp;
import org.snmp4j.TransportMapping;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.smi.Address;
import org.snmp4j.smi.GenericAddress;
import org.snmp4j.smi.OID;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.VariableBinding;
import org.snmp4j.transport.DefaultUdpTransportMapping;
/**
* 本類用於向管理進程發送Trap信息
*
* @author zhanjia
*
*/
public class SnmpUtilSendTrap {
private Snmp snmp = null;
private Address targetAddress = null;
public void initComm() throws IOException {
// 設置管理進程的IP和端口
targetAddress = GenericAddress.parse("udp:192.168.1.23/162");
TransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
transport.listen();
}
/**
* 向管理進程發送Trap報文
*
* @throws IOException
*/
public void sendPDU() throws IOException {
// 設置 target
CommunityTarget target = new CommunityTarget();
target.setAddress(targetAddress);
// 通信不成功時的重試次數
target.setRetries(2);
// 超時時間
target.setTimeout(1500);
// snmp版本
target.setVersion(SnmpConstants.version2c);
// 創建 PDU
PDU pdu = new PDU();
pdu.add(new VariableBinding(new OID(".1.3.6.1.2.3377.10.1.1.1.1"),
new OctetString("SnmpTrap")));
pdu.add(new VariableBinding(new OID(".1.3.6.1.2.3377.10.1.1.1.2"),
new OctetString("JavaEE")));
pdu.setType(PDU.TRAP);
// 向Agent發送PDU,並接收Response
ResponseEvent respEvnt = snmp.send(pdu, target);
// 解析Response
if (respEvnt != null && respEvnt.getResponse() != null) {
Vector<VariableBinding> recVBs = (Vector<VariableBinding>) respEvnt.getResponse().getVariableBindings();
for (int i = 0; i < recVBs.size(); i++) {
VariableBinding recVB = recVBs.elementAt(i);
System.out.println(recVB.getOid() + " : " + recVB.getVariable());
}
}
}
public static void main(String[] args) {
try {
SnmpUtilSendTrap util = new SnmpUtilSendTrap();
util.initComm();
util.sendPDU();
} catch (IOException e) {
e.printStackTrace();
}
}
}
1、運行MultiThreadedTrapReceiver類,提示“開始監聽Trap信息!”並處理監聽狀態
2、運行SnmpUtilSendTrap類,運行完畢後,將會在“開始監聽Trap信息!”後面顯示:
1.3.6.1.2.3377.10.1.1.1.1 : SnmpTrap
1.3.6.1.2.3377.10.1.1.1.2 : JavaEE
MultiThreadedTrapReceiver輸出面板中顯示以上兩行即表示測試成功!
說明:
本例只在本人電腦上測試過,操作系統爲Windows