snmp4j获取表

public class RouterTable {

 public RouterTable(){

 }

 public synchronized static String collector(String ip){

  CommunityTarget target=new CommunityTarget();

 target.setAddress(new UdpAddress(ip+"/161"));

 target.setRetries(1);

 target.setTimeout(5000);

 target.setVersion(SnmpConstants.version2c);

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

       PDU pdu = new PDU(); 

       String[] oid={"1.3.6.1.2.1.4.21.1.1","1.3.6.1.2.1.4.21.1.7","1.3.6.1.2.1.4.21.1.8","1.3.6.1.2.1.4.21.1.11","1.3.6.1.2.1.4.21.1.3"};

       String[] value=new String[oid.length];

       StringBuffer sb = new StringBuffer();

       sb.append("目的ip");

  sb.append(Constants.COL_SEPRATOR);

  sb.append("下一跳路由ip");

  sb.append(Constants.COL_SEPRATOR);

  sb.append("路由类型");

  sb.append(Constants.COL_SEPRATOR);

  sb.append("子网掩码");

  sb.append(Constants.COL_SEPRATOR);

  sb.append("主metric");

  sb.append(Constants.COL_SEPRATOR);

  sb.append(Constants.LINE_SEPERATOR);

           for(String s="1.3.6.1.2.1.4.21.1.1";s.equals("1.3.6.1.2.1.4.21.1.1");s=oid[0].substring(0, 20))

       {

            for(int k=0;k<oid.length;k++){

            pdu.add(new VariableBinding(new OID(oid[k])));

          // System.out.println(s);   

            }

               pdu.setType(PDU.GETNEXT);

           try{

            Snmp snmp = new Snmp(new DefaultUdpTransportMapping());

                snmp.listen();              

                ResponseEvent respEvent = snmp.send(pdu, target);                

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

                 PDU pduResponse=respEvent.getResponse();

                 Vector vector=pduResponse.getVariableBindings();

                  String[] string2=new String[oid.length];               

                  for(int l=0;l<vector.size();l++){                  

                   string2[l]=vector.get(l).toString();                  

                  oid[l]=string2[l].substring(0,string2[l].indexOf("=")-1).trim();                  

                  value[l]=string2[l].substring(string2[l].indexOf("=")+2, string2[l].length()).trim();

                  if ((oid[l].charAt(19)+"").equals("2")){

                   break;

                  }

                   sb.append(value[l]);

                   sb.append(Constants.COL_SEPRATOR);               

                   //System.out.println(oid[l]);                 

                   //System.out.println(value[l]);

                   pdu.remove(0);

                  }

                  sb.append(Constants.LINE_SEPERATOR);

                  }

                }  

           catch (IOException e) {  

               e.printStackTrace();               

            }

           }

 //System.out.println(sb.toString());

 return sb.toString();

 }

 }

循环条件的设置