下面是两个用于发送和接收Trap报文信息的类:
- 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;
- /**
- * 本类用于监听代理进程的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与监听端口
- TransportMapping transport;
- // 对TCP与UDP协议进行处理
- 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("开始监听Trap信息!");
- } catch (Exception ex) {
- ex.printStackTrace();
- }
- }
- /**
- * 实现CommandResponder的processPdu方法, 用于处理传入的请求、PDU等信息
- * 当接收到trap时,会自动进入这个方法
- *
- * @param respEvnt
- */
- public void processPdu(CommandResponderEvent respEvnt) {
- // 解析Response
- if (respEvnt != null && respEvnt.getPDU() != null) {
- Vector<VariableBinding> recVBs = 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();
- }
- }