最近老板要求用到SNMP4J这个东西,上网查了一些资料,有很多迷惑之处,希望高手能够解答:我想利用SNMP4J获取路由器上的一些IP信息,不知道怎么实现呢?大家看看下面的代码,这是个获取目标机器的主机名的程序。在本机下测试通过,但是当我把目标机的IP从本机换成其他机子的时候就运行不了任何结果,这是为何??import java.io.IOException;
import java.util.Vector;
import org.snmp4j.CommunityTarget;
import org.snmp4j.PDU;
import org.snmp4j.Snmp;
import org.snmp4j.TransportMapping;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.mp.SnmpConstants;
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 GetSnmpUtil {
private Snmp snmp = null;
private Address targetAddress = null;
public void initComm() throws IOException { // 设置Agent方的IP和端口
targetAddress = GenericAddress.parse("udp:127.0.0.1/161"); //把这个127.0.0.1换成其他IP就不行了,为啥?
TransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
transport.listen();
} public void sendPDU() throws IOException {
// 设置 target
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString("public"));
target.setAddress(targetAddress);
// 通信不成功时的重试次数
target.setRetries(2); // 超时时间
target.setTimeout(1500);
target.setVersion(SnmpConstants.version1); // 创建 PDU
PDU pdu = new PDU();
pdu.add(new VariableBinding(new OID(new int[] { 1, 3, 6, 1, 2, 1, 1, 5, 0 }))); // MIB的访问方式
pdu.setType(PDU.GET); // 向Agent发送PDU,并接收Response
ResponseEvent respEvnt = snmp.send(pdu, target); // 解析Response
if (respEvnt != null && respEvnt.getResponse() != null) {
Vector<VariableBinding> recVBs = respEvnt.getResponse()
.getVariableBindings();
for (int i = 0; i < recVBs.size(); i++) {
VariableBinding recVB = recVBs.elementAt(i);
System.out.println(recVB.getOid() + " : " + recVB.getVariable());
}
}
} public static void main(String[] args) {
try {
GetSnmpUtil util = new GetSnmpUtil();
util.initComm();
util.sendPDU();
} catch (IOException e) {
e.printStackTrace();
}
}
}
import java.util.Vector;
import org.snmp4j.CommunityTarget;
import org.snmp4j.PDU;
import org.snmp4j.Snmp;
import org.snmp4j.TransportMapping;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.mp.SnmpConstants;
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 GetSnmpUtil {
private Snmp snmp = null;
private Address targetAddress = null;
public void initComm() throws IOException { // 设置Agent方的IP和端口
targetAddress = GenericAddress.parse("udp:127.0.0.1/161"); //把这个127.0.0.1换成其他IP就不行了,为啥?
TransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
transport.listen();
} public void sendPDU() throws IOException {
// 设置 target
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString("public"));
target.setAddress(targetAddress);
// 通信不成功时的重试次数
target.setRetries(2); // 超时时间
target.setTimeout(1500);
target.setVersion(SnmpConstants.version1); // 创建 PDU
PDU pdu = new PDU();
pdu.add(new VariableBinding(new OID(new int[] { 1, 3, 6, 1, 2, 1, 1, 5, 0 }))); // MIB的访问方式
pdu.setType(PDU.GET); // 向Agent发送PDU,并接收Response
ResponseEvent respEvnt = snmp.send(pdu, target); // 解析Response
if (respEvnt != null && respEvnt.getResponse() != null) {
Vector<VariableBinding> recVBs = respEvnt.getResponse()
.getVariableBindings();
for (int i = 0; i < recVBs.size(); i++) {
VariableBinding recVB = recVBs.elementAt(i);
System.out.println(recVB.getOid() + " : " + recVB.getVariable());
}
}
} public static void main(String[] args) {
try {
GetSnmpUtil util = new GetSnmpUtil();
util.initComm();
util.sendPDU();
} catch (IOException e) {
e.printStackTrace();
}
}
}
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货