Discussion :

[yazidi_marwen]

salut toute le monde je veut lister un oid existant avec java ,j'ai le teste avec snmputil est coorect
voila le code java

Code java :

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import snmp.*; 
import java.util.*; 
import java.math.*; 
import java.net.*; 
 
 
 
public class SNMPSample2 
{
 
    public static void main(String args[]) 
    {
 
        try 
        {
 
            InetAddress hostAddress = InetAddress.getByName("127.0.0.1");
            String community = "public"; 
            int version = 0;    // SNMPv1
 
            SNMPv1CommunicationInterface comInterface = new SNMPv1CommunicationInterface(version, hostAddress, community); 
 
 
            String itemID = ".1.3.6.1.2.1.1.1";
 
            System.out.println("Retrieving value corresponding to OID " + itemID);
 
           SNMPVarBindList newVars = comInterface.getMIBEntry(itemID);
 
 
            SNMPSequence pair = (SNMPSequence)(newVars.getSNMPObjectAt(0));
 
 
            SNMPObjectIdentifier snmpOID = (SNMPObjectIdentifier)pair.getSNMPObjectAt(0);
 
 
            SNMPObject snmpValue = pair.getSNMPObjectAt(1);
 
 
            System.out.println("Retrieved value: type " + snmpValue.getClass().getName() + ", value " + snmpValue.toString());
 
 
            byte[] javaByteArrayValue = (byte[])snmpValue.getValue(); 
 
 
            itemID = ".1.3.6.1.2.1.1.1";
 
            System.out.println("Retrieving value corresponding to OID " + itemID);
 
 
            newVars = comInterface.getMIBEntry(itemID);
 
 
            pair = (SNMPSequence)(newVars.getSNMPObjectAt(0));
 
 
            snmpOID = (SNMPObjectIdentifier)pair.getSNMPObjectAt(0);
 
 
            snmpValue = pair.getSNMPObjectAt(1);
 
 
            System.out.println("Retrieved value: type " + snmpValue.getClass().getName() + ", value " + snmpValue.toString());
        } 
        catch(Exception e) 
        { 
            System.out.println("Exception during SNMP operation:  " + e + "\n"); 
        }
 
    }
 
}
---------------------------------------------------------
Retrieving value corresponding to OID .1.3.6.1.2.1.1.1
Exception during SNMP operation:  snmp.SNMPGetException: OID .1.3.6.1.2.1.1.1 not available for retrieval

[yazidi_marwen]

www.developpez.net/forums/d972741/systemes/autres-systemes/reseaux/tutoriel-presentation-protocole-snmp/

[yazidi_marwen]

www.loriotpro.com/ServiceAndSupport/How_to/InstallWXPAgent_FR.php

[yazidi_marwen]

irp.nain-t.net/doku.php/215snmp:40_les_mibs

[yazidi_marwen]

Code java :

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package sNMP4JHelper;
 
import org.snmp4j.CommunityTarget;
 
import org.snmp4j.PDU;
 
import org.snmp4j.Snmp;
 
import org.snmp4j.TransportMapping;
 
import org.snmp4j.event.ResponseEvent;
 
import org.snmp4j.event.ResponseListener;
 
import org.snmp4j.mp.SnmpConstants;
 
import org.snmp4j.smi.*;
 
import org.snmp4j.transport.DefaultUdpTransportMapping;
 
public class SNMP4JHelper {
 
      public static final String READ_COMMUNITY = "public";
 
      public static final String WRITE_COMMUNITY= "private";
 
      public static final int mSNMPVersion =0; // 0 represents SNMP version=1
 
      public static final String OID_UPS_OUTLET_GROUP1 =
 
      "1.3.6.1.4.1.318.1.1.1.12.3.2.1.3.1";
 
      public static final String OID_SYS_DESCR="1.3.6.1.2.1.1.1.0";
 
      public static void main(String[] args)
 
      {
 
      try
 
      {
 
      String strIPAddress = "127.0.0.1";
 
      SNMP4JHelper objSNMP = new SNMP4JHelper();
 
      //objSNMP.snmpSet();
 
     ////////////////////////////////////////////
 
      //Set Value=2 to trun OFF UPS OUTLET Group1
 
      //Value=1 to trun ON UPS OUTLET Group1
 
      //////////////////////////////////////////
 
      int Value = 2;
 
      //objSNMP.snmpSet(strIPAddress, WRITE_COMMUNITY,OID_UPS_OUTLET_GROUP1, Value);
 
      //////////////////////////////////////////////////////////
 
      //Get Basic state of UPS
 
      /////////////////////////////////////////////////////////
 
      String batteryCap =objSNMP.snmpGet(strIPAddress,READ_COMMUNITY,OID_SYS_DESCR);
 
      }
 
      catch (Exception e)
 
      {
 
      e.printStackTrace();
 
      }
 
}
 
/*
 
* The following code valid only SNMP version1. This
 
* method is very useful to set a parameter on remote device.
 
*/
 
public void snmpSet(String strAddress, String community, String strOID, int Value)
 
{
 
strAddress= strAddress+"/"+161;
 
Address targetAddress = GenericAddress.parse(strAddress);
 
Snmp snmp;
 
try
 
{
 
TransportMapping transport = new DefaultUdpTransportMapping();
 
snmp = new Snmp(transport);
 
transport.listen();
 
CommunityTarget target = new CommunityTarget();
 
target.setCommunity(new OctetString(community));
 
target.setAddress(targetAddress);
 
target.setRetries(2);
 
target.setTimeout(5000);
 
target.setVersion(SnmpConstants.version1);
 
PDU pdu = new PDU();
 
pdu.add(new VariableBinding(new OID(strOID), new Integer32(Value)));
 
pdu.setType(PDU.SET);
 
ResponseListener listener = new ResponseListener() {
 
      public void onResponse(ResponseEvent event) {
 
            // Always cancel async request when response has been received
 
            // otherwise a memory leak is created! Not canceling a request
 
            // immediately can be useful when sending a request to a broadcast
 
            // address.
 
            ((Snmp)event.getSource()).cancel(event.getRequest(), this);
 
            System.out.println("Set Status is:"+event.getResponse().getErrorStatusText());
 
            }
 
            };
 
            snmp.send(pdu, target, null, listener);
 
            snmp.close();
 
            }
 
            catch (Exception e)
 
            {
 
            e.printStackTrace();
 
            }
 
            }
 
 /*
* The code is valid only SNMP version1. SnmpGet method
 
* return Response for given OID from the Device.
 
*/
 
public String snmpGet(String strAddress, String community, String strOID)
 
{
 
String str="";
 
try
 
{
 
OctetString community1 = new OctetString(community);
 
strAddress= strAddress+"/" + 161;
 
Address targetaddress = new UdpAddress(strAddress);
 
TransportMapping transport = new DefaultUdpTransportMapping();
 
transport.listen();
 
CommunityTarget comtarget = new CommunityTarget();
 
comtarget.setCommunity(community1);
 
comtarget.setVersion(SnmpConstants.version1);
 
comtarget.setAddress(targetaddress);
 
comtarget.setRetries(2);
 
comtarget.setTimeout(5000);
 
PDU pdu = new PDU();
 
ResponseEvent response;
 
Snmp snmp;
 
pdu.add(new VariableBinding(new OID(strOID)));
 
pdu.setType(PDU.GET);
 
snmp = new Snmp(transport);
 
response = snmp.get(pdu,comtarget);
 
if(response != null)
 
{
 
if(response.getResponse().getErrorStatusText().equalsIgnoreCase("Success"))
 
{
 
PDU pduresponse=response.getResponse();
 
str=pduresponse.getVariableBindings().firstElement().toString();
 
if(str.contains("="))
 
{
 
int len = str.indexOf("=");
 
str=str.substring(len+1, str.length());
 
}
 
}
 
}
 
else
 
{
 
System.out.println("Feeling like a TimeOut occured ");
 
}
 
snmp.close();
 
} catch(Exception e) { e.printStackTrace(); }
 
System.out.println("Response="+str);
 
return str;
 
}
 
}