snmp4j 编程

从www.snmp4j.org下载snmp4j的jar包，用eclipse新建一个java项目。将jar包导入工程（只有一个jar包），开始编程

一个简单的测试程序

//create target

//create pdu

//snmp.send

okay,上代码

package com.gxf.snmp;

import java.io.IOException;

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.Variable;
import org.snmp4j.smi.VariableBinding;
import org.snmp4j.transport.DefaultUdpTransportMapping;

//create target
//create pdu
//snmp send

public class SNMP {

    public static void main(String[] args) {
        //create target
        Address address = GenericAddress.parse("udp:210.38.235.186/161");
        CommunityTarget target = new CommunityTarget();

        target.setCommunity(new OctetString("public"));
        target.setAddress(address);
        target.setTimeout(10000);//10s
        target.setVersion(SnmpConstants.version2c);
        //create pdu
        PDU pduSet = createSetPdu();
        PDU pudGet = createGetPdu();

        sendPdu(pudGet, target);
        sendPdu(pduSet, target);
        sendPdu(pudGet, target);

    }
    //1.3.6.1.2.1.1.5.0 sysName
    //create set pdu
    public static  PDU createSetPdu(){
        PDU pduReturn = new PDU();

        pduReturn.setType(PDU.SET);
        VariableBinding variable = new VariableBinding(new OID("1.3.6.1.2.1.1.5.0"), new OctetString("testname"));
        pduReturn.add(variable);

        return pduReturn;
    }
    //create get pdu
    public static PDU createGetPdu(){
        PDU pduReturn = new PDU();

        pduReturn.setType(PDU.GET);
        VariableBinding variableBinding = new VariableBinding(new OID("1.3.6.1.2.1.1.5.0"));
        pduReturn.add(variableBinding);

        return pduReturn;
    }
    //send pdu
    public static void sendPdu(PDU pdu, CommunityTarget communityTarget){
        try {
            TransportMapping transportMapping = new DefaultUdpTransportMapping();
            transportMapping.listen();
            Snmp snmp = new Snmp(transportMapping);

            ResponseEvent responseEvent = snmp.send(pdu, communityTarget);
            //get reponse pdu
            if(null != responseEvent){
                PDU pduResponse = responseEvent.getResponse();
                System.out.println("size : " + pduResponse.size());
                for(int i = 0; i < pduResponse.size(); i++){
                    VariableBinding variableBinding = pduResponse.get(i);
                    Variable variable = variableBinding.getVariable();
                    System.out.println(variable.toString());
                }
                System.out.println("error:" + pduResponse.getErrorStatusText());
            }
            else{
                System.out.println("timeout ...");
            }
        } catch (IOException e) {

            e.printStackTrace();
            System.out.println(e.getMessage());
        }

    }
}

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