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.