SNMP4j实现同步和异步的GET的示例
来源：互联网 发布：软件测试技术考题 编辑：程序博客网 时间：2024/05/17 21:56
目录：
- 环境参数
- 代码示例
- 同步GET 单个OID
- 同步GET 多个OID
- 异步GET
[一]、环境参数
- jdk 1.6.0_18
- snmp4j 1.11.3
[二]、代码示例
1.同步GET 单个OID（v2c）
代码：SnmpGet.java
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package com.micmiu.snmp4j.demo1x;
import java.io.IOException;
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.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;
/**
* 演示： GET单个OID值
*
* blog http://www.micmiu.com
*
* @author Michael
*/
public class SnmpGet {
public static final int DEFAULT_VERSION = SnmpConstants.version2c;
public static final String DEFAULT_PROTOCOL = "udp";
public static final int DEFAULT_PORT = 161;
public static final long DEFAULT_TIMEOUT = 3 * 1000L;
public static final int DEFAULT_RETRY = 3;
/**
* 创建对象communityTarget
*
* @param targetAddress
* @param community
* @param version
* @param timeOut
* @param retry
* @return CommunityTarget
*/
public static CommunityTarget createDefault(String ip, String community) {
Address address = GenericAddress.parse(DEFAULT_PROTOCOL + ":" + ip
+ "/" + DEFAULT_PORT);
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
target.setAddress(address);
target.setVersion(DEFAULT_VERSION);
target.setTimeout(DEFAULT_TIMEOUT); // milliseconds
target.setRetries(DEFAULT_RETRY);
return target;
}
public static void snmpGet(String ip, String community, String oid) {
CommunityTarget target = createDefault(ip, community);
Snmp snmp = null;
try {
PDU pdu = new PDU();
// pdu.add(new VariableBinding(new OID(new int[]
// {1,3,6,1,2,1,1,2})));
pdu.add(new VariableBinding(new OID(oid)));
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
snmp.listen();
System.out.println("-------> 发送PDU <-------");
pdu.setType(PDU.GET);
ResponseEvent respEvent = snmp.send(pdu, target);
System.out.println("PeerAddress:" + respEvent.getPeerAddress());
PDU response = respEvent.getResponse();
if (response == null) {
System.out.println("response is null, request time out");
} else {
// Vector<VariableBinding> vbVect =
// response.getVariableBindings();
// System.out.println("vb size:" + vbVect.size());
// if (vbVect.size() == 0) {
// System.out.println("response vb size is 0 ");
// } else {
// VariableBinding vb = vbVect.firstElement();
// System.out.println(vb.getOid() + " = " + vb.getVariable());
// }
System.out.println("response pdu size is " + response.size());
for (int i = 0; i < response.size(); i++) {
VariableBinding vb = response.get(i);
System.out.println(vb.getOid() + " = " + vb.getVariable());
}
}
System.out.println("SNMP GET one OID value finished !");
} catch (Exception e) {
e.printStackTrace();
System.out.println("SNMP Get Exception:" + e);
} finally {
if (snmp != null) {
try {
snmp.close();
} catch (IOException ex1) {
snmp = null;
}
}
}
}
/**
*
* @param args
*/
public static void main(String[] args) {
String ip = "192.168.8.254";
String community = "public";
String oidval = "1.3.6.1.2.1.1.1.0";
SnmpGet.snmpGet(ip, community, oidval);
}
}
运行结果：
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------->发送PDU<-------
PeerAddress:192.168.8.254/161
responsepdusizeis1
1.3.6.1.2.1.1.1.0=H3CICG2000
H3CComwarePlatformSoftware
ComwareSoftwareVersion5.20,Release2104P02
Copyright(c)2004-2010HangzhouH3CTechnologiesCo.,Ltd.
SNMPGEToneOIDvaluefinished!
2.同步GET 多个OID（v2c）
代码：SnmpGetList.java
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package com.micmiu.snmp4j.demo1x;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
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.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;
/**
* 演示：GET 多个OID值
*
* blog http://www.micmiu.com
*
* @author Michael
*
*/
public class SnmpGetList {
public static final int DEFAULT_VERSION = SnmpConstants.version2c;
public static final String DEFAULT_PROTOCOL = "udp";
public static final int DEFAULT_PORT = 161;
public static final long DEFAULT_TIMEOUT = 3 * 1000L;
public static final int DEFAULT_RETRY = 3;
/**
* 创建对象communityTarget
*
* @param targetAddress
* @param community
* @param version
* @param timeOut
* @param retry
* @return CommunityTarget
*/
public static CommunityTarget createDefault(String ip, String community) {
Address address = GenericAddress.parse(DEFAULT_PROTOCOL + ":" + ip
+ "/" + DEFAULT_PORT);
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
target.setAddress(address);
target.setVersion(DEFAULT_VERSION);
target.setTimeout(DEFAULT_TIMEOUT); // milliseconds
target.setRetries(DEFAULT_RETRY);
return target;
}
/**
*
* @param ip
* @param community
* @param oid
*/
public static void snmpGetList(String ip, String community,
List<String> oidList) {
CommunityTarget target = SnmpUtil.createDefault(ip, community);
Snmp snmp = null;
try {
PDU pdu = new PDU();
for (String oid : oidList) {
pdu.add(new VariableBinding(new OID(oid)));
}
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
transport.listen();
snmp = new Snmp(transport);
System.out.println("------->发送消息<-------");
pdu.setType(PDU.GET);
ResponseEvent respEvent = snmp.send(pdu, target);
System.out.println("PeerAddress:" + respEvent.getPeerAddress());
PDU response = respEvent.getResponse();
if (response == null) {
System.out.println("response is null, request time out");
} else {
System.out.println("response pdu size is " + response.size());
for (int i = 0; i < response.size(); i++) {
VariableBinding vb = response.get(i);
System.out.println(vb.getOid() + " = " + vb.getVariable());
}
}
System.out.println("SNMP GET List OID value finished !");
} catch (Exception e) {
e.printStackTrace();
System.out.println("SNMP GetList Exception:" + e);
} finally {
if (snmp != null) {
try {
snmp.close();
} catch (IOException ex1) {
snmp = null;
}
}
}
}
/**
*
* @param args
*/
public static void main(String[] args) {
String ip = "192.168.8.254";
String community = "public";
List<String> oidList = new ArrayList<String>();
oidList.add(".1.3.6.1.2.1.1.1.0");
oidList.add(".1.3.6.1.2.1.1.3.0");
oidList.add(".1.3.6.1.2.1.1.5.0");
SnmpGetList.snmpGetList(ip, community, oidList);
}
}
运行结果：
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------->发送消息<-------
PeerAddress:192.168.8.254/161
responsepdusizeis3
1.3.6.1.2.1.1.1.0=H3CICG2000
H3CComwarePlatformSoftware
ComwareSoftwareVersion5.20,Release2104P02
Copyright(c)2004-2010HangzhouH3CTechnologiesCo.,Ltd.
1.3.6.1.2.1.1.3.0=39days,21:25:37.36
1.3.6.1.2.1.1.5.0=HX_ICG2000
SNMPGETListOIDvaluefinished!
3.异步GET （v2c）
代码：SnmpGetAsyn.java
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package com.micmiu.snmp4j.demo1x;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.snmp4j.CommunityTarget;
import org.snmp4j.PDU;
import org.snmp4j.Snmp;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.event.ResponseListener;
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;
/**
* 演示：异步GET OID值
*
* blog http://www.micmiu.com
*
* @author Michael
*
*/
public class SnmpGetAsyn {
public static final int DEFAULT_VERSION = SnmpConstants.version2c;
public static final String DEFAULT_PROTOCOL = "udp";
public static final int DEFAULT_PORT = 161;
public static final long DEFAULT_TIMEOUT = 3 * 1000L;
public static final int DEFAULT_RETRY = 3;
/**
* 创建对象communityTarget
*
* @param targetAddress
* @param community
* @param version
* @param timeOut
* @param retry
* @return CommunityTarget
*/
public static CommunityTarget createDefault(String ip, String community) {
Address address = GenericAddress.parse(DEFAULT_PROTOCOL + ":" + ip
+ "/" + DEFAULT_PORT);
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
target.setAddress(address);
target.setVersion(DEFAULT_VERSION);
target.setTimeout(DEFAULT_TIMEOUT); // milliseconds
target.setRetries(DEFAULT_RETRY);
return target;
}
/**
* 异步采集信息
*
* @param ip
* @param community
* @param oid
*/
public static void snmpAsynGetList(String ip, String community,
List<String> oidList) {
CommunityTarget target = createDefault(ip, community);
Snmp snmp = null;
try {
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
snmp.listen();
PDU pdu = new PDU();
for (String oid : oidList) {
pdu.add(new VariableBinding(new OID(oid)));
}
final CountDownLatch latch = new CountDownLatch(1);
ResponseListener listener = new ResponseListener() {
public void onResponse(ResponseEvent event) {
((Snmp) event.getSource()).cancel(event.getRequest(), this);
PDU response = event.getResponse();
PDU request = event.getRequest();
System.out.println("[request]:" + request);
if (response == null) {
System.out.println("[ERROR]: response is null");
} else if (response.getErrorStatus() != 0) {
System.out.println("[ERROR]: response status"
+ response.getErrorStatus() + " Text:"
+ response.getErrorStatusText());
} else {
System.out.println("Received response Success!");
for (int i = 0; i < response.size(); i++) {
VariableBinding vb = response.get(i);
System.out.println(vb.getOid() + " = "
+ vb.getVariable());
}
System.out.println("SNMP Asyn GetList OID finished. ");
latch.countDown();
}
}
};
pdu.setType(PDU.GET);
snmp.send(pdu, target, null, listener);
System.out.println("asyn send pdu wait for response...");
boolean wait = latch.await(30, TimeUnit.SECONDS);
System.out.println("latch.await =:" + wait);
snmp.close();
} catch (Exception e) {
e.printStackTrace();
System.out.println("SNMP Asyn GetList Exception:" + e);
}
}
/**
*
* @param args
*/
public static void main(String[] args) {
String ip = "192.168.8.254";
String community = "public";
List<String> oidList = new ArrayList<String>();
oidList.add(".1.3.6.1.2.1.1.1.0");
oidList.add(".1.3.6.1.2.1.1.3.0");
oidList.add(".1.3.6.1.2.1.1.5.0");
// 异步采集数据
SnmpGetAsyn.snmpAsynGetList(ip, community, oidList);
}
}
运行结果：
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asynsendpduwaitforresponse...
[request]:GET[requestID=1506196554,errorStatus=Success(0),errorIndex=0,VBS[1.3.6.1.2.1.1.1.0=Null;1.3.6.1.2.1.1.3.0=Null;1.3.6.1.2.1.1.5.0=Null]]
ReceivedresponseSuccess!
1.3.6.1.2.1.1.1.0=H3CICG2000
H3CComwarePlatformSoftware
ComwareSoftwareVersion5.20,Release2104P02
Copyright(c)2004-2010HangzhouH3CTechnologiesCo.,Ltd.
1.3.6.1.2.1.1.3.0=39days,21:26:34.40
1.3.6.1.2.1.1.5.0=HX_ICG2000
SNMPAsynGetListOIDfinished.
latch.await=:true
—–
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