使用snmp4j实现Snmp功能

求个例子~~

这个例子是可以用的
[code="java"]
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;

public class SnmpUtil {

   private Snmp snmp = null;   



   private Address targetAddress = null;   



   public void initComm() throws IOException {   



          // 设置Agent方的IP和端口   

          targetAddress = GenericAddress.parse("udp:127.0.0.1/161");   

          TransportMapping transport = new DefaultUdpTransportMapping();   

          snmp = new Snmp(transport);   

          transport.listen();   

   }   



   public ResponseEvent sendPDU(PDU pdu) throws IOException {   

          // 设置 target   

          CommunityTarget target = new CommunityTarget();   

          target.setCommunity(new OctetString("public"));   

          target.setAddress(targetAddress);   

          // 通信不成功时的重试次数   

          target.setRetries(2);   

          // 超时时间   

          target.setTimeout(1500);   

          target.setVersion(SnmpConstants.version1);   

          // 向Agent发送PDU，并返回Response   

          return snmp.send(pdu, target);   

   }   



   public void setPDU() throws IOException {   

          // set PDU   

          PDU pdu = new PDU();   

          pdu.add(new VariableBinding(new OID(new int[] { 1, 3, 6, 1, 2, 1, 1, 5, 0 }), new OctetString("SNMPTEST")));   

          pdu.setType(PDU.SET);   

          sendPDU(pdu);   

   }   



   public void getPDU() throws IOException {   

          // get PDU   

          PDU pdu = new PDU();   

          pdu.add(new VariableBinding(new OID(new int[] { 1, 3, 6, 1, 2, 1, 1, 5, 0 })));   

          pdu.setType(PDU.GET);   

          readResponse(sendPDU(pdu));   

   }   



   public void readResponse(ResponseEvent respEvnt) {   

          // 解析Response   

          if (respEvnt != null && respEvnt.getResponse() != null) {   

                 Vector<VariableBinding> recVBs = 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 {   

                 SnmpUtil util = new SnmpUtil();   

                 util.initComm();   

                 util.setPDU();   

                 util.getPDU();   

          } catch (IOException e) {   

                 e.printStackTrace();   

          }   

   }   

}

[/code]