snmp4j获取数据实例

import java.io.IOException;
import java.net.InetAddress;

import org.snmp4j.CommunityTarget;
import org.snmp4j.PDU;
import org.snmp4j.Snmp;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.smi.OID;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.UdpAddress;
import org.snmp4j.smi.VariableBinding;
import org.snmp4j.transport.DefaultUdpTransportMapping;

public class TestOp ...{

    public static void main(String[] args)
    ...{
        try ...{
            Snmp snmp = new Snmp(new DefaultUdpTransportMapping());
            CommunityTarget target = new CommunityTarget();//agent对象
            target.setCommunity(new OctetString("public"));//设置共同体名,没发现设置RWCommnity的方
                                                                                                      //法,大概只能设一个.
            target.setVersion(SnmpConstants.version2c);//设置版本
            target.setAddress(new UdpAddress("127.0.0.1/161"));//设置IP地址和端口号,这里竟然用'/'来分  
                                                                                                   //隔,当初确实没有料到,JDOC的说明等于没有.
            target.setRetries(1);                      //设置重试次数
            target.setTimeout(5000);             //设置超时
            
            snmp.listen();                                 //监听
            PDU request = new PDU();         //new request PDU包
            //set pud type and set oid
            request.setType(PDU.GET);        //设置PDU类型,
            request.add(new VariableBinding(new OID(".1.3.6.1.2.1.1.1.0"))); //OID添加
            request.add(new VariableBinding(new OID(".1.3.6.1.2.1.1.2.0")));
            System.out.println("request UDP:" + request);//请求包内内容输出,
            PDU response = null;//定义response包
            ResponseEvent responseEvent = snmp.send(request, target); //发出request PDU
            //接收response PDU
            response = responseEvent.getResponse();
           
                //response PDU包解析
            if(response!=null)...{
                if(response.getErrorIndex()==response.noError&&response.getErrorStatus()==response.noError)...{
                    System.out.println("no error.");
                    String pause=responseEvent.getResponse().getVariableBindings().toString();
                    String getvalue=pause.substring( pause.indexOf("= ")+2,pause.indexOf(']'));
                    String oid=pause.substring(pause.indexOf("VBS[")+2,pause.indexOf("=")-1);
                    System.out.println(oid+"::");
                    System.out.println(response);
                    
                }else...{
                    System.out.println("get error:"+response.getErrorStatusText());
                }
                
            }else...{
                System.out.println("get response error");
            }
            
            
        } catch (IOException e) ...{
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
    }
}

 

执行结果:
request UDP:GET[requestID=0, errorStatus=Success(0), errorIndex=0, VBS[1.3.6.1.2.1.1.1.0 = Null; 1.3.6.1.2.1.1.2.0 = Null]]
no error.
1.3.6.1.2.1.1.1.0::
RESPONSE[requestID=18464556, errorStatus=Success(0), errorIndex=0, VBS[1.3.6.1.2.1.1.1.0 = Hardware: x86 Family 6 Model 14 Stepping 8 AT/AT COMPATIBLE - Software: Windows 2000 Version 5.1 (Build 2600 Uniprocessor Free); 1.3.6.1.2.1.1.2.0 = 1.3.6.1.4.1.311.1.1.3.1.1]]

这里response.getVariableBindings()返回的是VaribleBinding数组,应该根据名个VaribleBinding对象解析得到OID值.所以上面的程序稍微有点问题.

上面的程序是一个GET的操作,GETNEXT,SET,GETBULK的操作也相似,
在snmp4j Jdoc中,

org.snmp4j.Snmp下面有较为详细的例子可以参考.