public class DeviceScannImp implements DeviceScann{

    private Snmp snmp = null;
    private Address targetAddress = null;
    private CommunityTarget target = null;

/**
     * 获取子树中的全部内容
     * @param ip ip地址
     * @param community 团体名称 ，我们才用的是public OceteString 八进制字符串
     * @param oid 的字符串
     * @return 返回到List中。
     */
    @Override
    public void getTree(String ip, OctetString community, String oidStr) {
        //构造目的ＩＰ和端口
        targetAddress = GenericAddress.parse("udp:" + ip + "/161");
        
        try {
            DefaultUdpTransportMapping transportMapping = new DefaultUdpTransportMapping();
            snmp = new Snmp(transportMapping);
            transportMapping.listen();
            
            target = new CommunityTarget(targetAddress, community);
            target.setRetries(2);
            target.setTimeout(1500);
            target.setVersion(SnmpConstants.version2c);
            
            OID oid = new OID(oidStr);
//            OID nextOid = oid.append(".1");

            VariableBinding vb = new VariableBinding(oid);
            
            PDU pdu = new PDU();
            
            pdu.add(vb);
            pdu.setType(PDU.GET);
//            ResponseEvent responseEvent = snmp.send(pdu, target);
            ResponseEvent responseEvent = snmp.get(pdu, target);
            
//            while(oid.){
//                        
//            }
            
            
            PDU pdu2 = responseEvent.getResponse();
            
            @SuppressWarnings("unchecked")
            Vector<VariableBinding> vector = (Vector<VariableBinding>) pdu2.getVariableBindings();
            
            for(int i = 0; i < vector.size(); i++){
                VariableBinding variableBinding = (VariableBinding)vector.elementAt(i);
                System.out.println(variableBinding.getOid() + " : " + variableBinding.getVariable());
            }
            
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
public static void main(String[] args) {
        DeviceScannImp deviceScannImp = new DeviceScannImp();
        deviceScannImp.getTree("127.0.0.1", new OctetString("public"), ".1.3.6.1.2.1.25.1");
    }