snmp4j 异步获取节点信息

public class ResponseListenerTest {
    public static void main(String[] args) throws IOException, InterruptedException {
        Snmp snmp = new Snmp(new DefaultUdpTransportMapping());
        snmp.listen();
        
        CommunityTarget target = new CommunityTarget();
        target.setCommunity(new OctetString("public"));
        target.setAddress(GenericAddress.parse("udp:192.168.100.61/161"));
        target.setRetries(1);
        target.setTimeout(2000);
        target.setVersion(SnmpConstants.version1);
        
        
        PDU pdu = new PDU();
        pdu.add(new VariableBinding(new OID("1.3.6.1.2.1.1.3.0")));
        pdu.setType(PDU.GET);
        
        ResponseListener listener = new ResponseListener() {
            @Override
            public void onResponse(ResponseEvent event) {
                PDU resp = event.getResponse();
                VariableBinding vb = resp.get(0);
                System.out.println(vb.getOid().toString() + "^^^^" + vb.getVariable());
            }
        };
        CountDownLatch latch = new CountDownLatch(1);
        snmp.get(pdu, target, null, listener);
        latch.await(2, TimeUnit.SECONDS);
    }
}