java代码通过snmp协议，获取服务器设备信息，使用常用的OID，例如1.3.6.1.2.1.1.5.0，获取不到任何信息。。
求大神，copy，测试，指点！谢谢！
package mySNMPtest;
import java.io.IOException;
import org.snmp4j.*;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.event.ResponseListener;
import org.snmp4j.mp.MPv3;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.security.*;
import org.snmp4j.smi.Address;
import org.snmp4j.smi.GenericAddress;
import org.snmp4j.smi.OID;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.VariableBinding;
import org.snmp4j.transport.DefaultUdpTransportMapping;
public class SnmpUtil {
private Snmp snmp = null;
private String version = null;
@SuppressWarnings("rawtypes")
public SnmpUtil(String version) {
try {
this.version = version;
TransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
if (version.equals("3")) {
// 设置安全模式
USM usm = new USM(SecurityProtocols.getInstance(), new OctetString(MPv3.createLocalEngineID()), 0);
SecurityModels.getInstance().addSecurityModel(usm);
}
// 开始监听消息
transport.listen();
} catch (IOException e) {
e.printStackTrace();
}
}
public void sendMessage(Boolean syn, final Boolean bro, PDU pdu, String addr) throws IOException {
// 生成目标地址对象
Address targetAddress = GenericAddress.parse(addr);
Target target = null;
if (version.equals("3")) {
// 添加用户
snmp.getUSM().addUser(new OctetString("MD5DES"), new UsmUser(new OctetString("MD5DES"), AuthMD5.ID,
new OctetString("MD5DESUserAuthPassword"), PrivDES.ID, new OctetString("MD5DESUserPrivPassword")));
target = new UserTarget();
// 设置安全级别
((UserTarget) target).setSecurityLevel(SecurityLevel.AUTH_PRIV);
((UserTarget) target).setSecurityName(new OctetString("MD5DES"));
target.setVersion(SnmpConstants.version3);
}
// 目标对象相关设置
target.setAddress(targetAddress);
target.setRetries(5);
target.setTimeout(1000);
if (syn.equals(true)) {
// 发送报文 并且接受响应
ResponseEvent response = snmp.send(pdu, target);
// 处理响应
System.out.println("Synchronize message from " + response.getPeerAddress()
+ "\nrequest:"+ response.getRequest()
+ "\nresponse:" + response.getResponse());
System.out.println("getUserObject:"+response.getUserObject());
} else {
// 设置监听对象
ResponseListener listener = new ResponseListener() {
@Override
public void onResponse(ResponseEvent event) {
if (bro.equals(false)) {
((Snmp) event.getSource()).cancel(event.getRequest(), this);
}
// 处理响应
PDU request = event.getRequest();
PDU response = event.getResponse();
System.out.println("Asynchronise message from " + event.getPeerAddress() + "\nrequest:" + request
+ "\nresponse:" + response);
}
};
// 发送报文
snmp.send(pdu, target, null, listener);
}
}
public static void main(String[] args) {
SnmpUtil manager = new SnmpUtil("3");
// 构造报文
// PDU pdu = new PDU();
PDU pdu = new ScopedPDU();
// 设置要获取的对象ID
OID oids = new OID("1.3.6.1.2.1.1.5.0");// 1.3.6.1.2.1.1.1.0
pdu.add(new VariableBinding(oids));
// 设置报文类型
// pdu.setType(PDU.GETNEXT);
((ScopedPDU) pdu).setContextName(new OctetString("public"));
try {
// 发送消息 其中最后一个是想要发送的目标地址
manager.sendMessage(true, false, pdu, "udp:135.251.218.92/161");
} catch (IOException e) {
e.printStackTrace();
}
}
}
测试结果如下：
Synchronize message from 135.251.218.92/161
request:GET[reqestID=1256933277, errorStatus=0, errorIndex=0, VBS[1.3.6.1.2.1.1.5.0 = Null]]
response:REPORT[reqestID=0, errorStatus=0, errorIndex=0, VBS[1.3.6.1.6.3.15.1.1.3.0 = 266]]
getUserObject:UserTarget[address=135.251.218.92/161,version=3,timeout=1000,retries=5,securityLevel=3,securityModel=3,securityName=MD5DES,preferredTransports=null, authoritativeEngineID=]
