Java Snmp.close方法代码示例

import org.snmp4j.Snmp; //导入方法依赖的package包/类
public static void sendTrapV2(String port) throws IOException {
    PDU trap = new PDU();
    trap.setType(PDU.TRAP);

    OID oid = new OID("1.2.3.4.5");
    trap.add(new VariableBinding(SnmpConstants.snmpTrapOID, oid));
    trap.add(new VariableBinding(SnmpConstants.sysUpTime, new TimeTicks(5000)));
    trap.add(new VariableBinding(SnmpConstants.sysDescr, new OctetString("System Description")));

    // Add Payload
    Variable var = new OctetString("some string");
    trap.add(new VariableBinding(oid, var));

    // Specify receiver
    Address targetaddress = new UdpAddress("127.0.0.1/" + port);
    CommunityTarget target = new CommunityTarget();
    target.setCommunity(new OctetString("public"));
    target.setVersion(SnmpConstants.version2c);
    target.setAddress(targetaddress);

    // Send
    Snmp snmp = new Snmp(new DefaultUdpTransportMapping());
    snmp.send(trap, target, null, null);

    snmp.close();
}
 

import org.snmp4j.Snmp; //导入方法依赖的package包/类
public void testTrapReceiverWithoutOpenNMS() throws Exception {
    System.out.println("SNMP4J: Register for Traps");
    trapCount = 0;
    Snmp snmp = new Snmp(new DefaultUdpTransportMapping(new UdpAddress(9162)));
    snmp.addCommandResponder(this);
    snmp.getUSM().addUser(
            new OctetString("opennmsUser"),
            new UsmUser(new OctetString("opennmsUser"), AuthMD5.ID, new OctetString("0p3nNMSv3"), PrivDES.ID, new OctetString("0p3nNMSv3")));
    snmp.listen();

    sendTraps();

    System.out.println("SNMP4J: Unregister for Traps");
    snmp.close();

    System.out.println("SNMP4J: Checking Trap status");
    assertEquals(2, trapCount);
}
 

import org.snmp4j.Snmp; //导入方法依赖的package包/类
/**
 * This methods sends the V1 trap to the Localhost in port 163
 */
public void sendSnmpV1Trap()
{
  try
  {
    //Create Transport Mapping
    TransportMapping transport = new DefaultUdpTransportMapping();
    transport.listen();

    //Create Target 
    CommunityTarget comtarget = new CommunityTarget();
    comtarget.setCommunity(new OctetString(community));
    comtarget.setVersion(SnmpConstants.version1);
    comtarget.setAddress(new UdpAddress(ipAddress + "/" + port));
    comtarget.setRetries(2);
    comtarget.setTimeout(5000);

    //Create PDU for V1
    PDUv1 pdu = new PDUv1();
    pdu.setType(PDU.V1TRAP);
    pdu.setEnterprise(new OID(trapOid));
    pdu.setGenericTrap(PDUv1.ENTERPRISE_SPECIFIC);
    pdu.setSpecificTrap(1);
    pdu.setAgentAddress(new IpAddress(ipAddress));

    //Send the PDU
    Snmp snmp = new Snmp(transport);
    System.out.println("Sending V1 Trap to " + ipAddress + " on Port " + port);
    snmp.send(pdu, comtarget);
    snmp.close();
  }
  catch (Exception e)
  {
    System.err.println("Error in Sending V1 Trap to " + ipAddress + " on Port " + port);
    System.err.println("Exception Message = " + e.getMessage());
  }
}
 

import org.snmp4j.Snmp; //导入方法依赖的package包/类
private void closeQuietly(Snmp session) {
    if (session == null) {
        return;
    }
    
    try {
        session.close();
    } catch (IOException e) {
        ThreadCategory.getInstance(Snmp4JStrategy.class).error("error closing SNMP connection: " + e, e);
    }
}
 

import org.snmp4j.Snmp; //导入方法依赖的package包/类
public static void sendTrapV1(String port) throws IOException {

        TransportMapping<?> transport = new DefaultUdpTransportMapping();
        transport.listen();

        CommunityTarget comtarget = new CommunityTarget();
        comtarget.setCommunity(new OctetString(new OctetString("public")));
        comtarget.setVersion(SnmpConstants.version1);
        comtarget.setAddress(new UdpAddress("127.0.0.1/" + port));
        comtarget.setRetries(2);
        comtarget.setTimeout(5000);

        PDU trap = new PDUv1();
        trap.setType(PDU.V1TRAP);

        OID oid = new OID("1.2.3.4.5");
        trap.add(new VariableBinding(SnmpConstants.snmpTrapOID, oid));
        trap.add(new VariableBinding(SnmpConstants.sysUpTime, new TimeTicks(5000)));
        trap.add(new VariableBinding(SnmpConstants.sysDescr, new OctetString("System Description")));

        // Add Payload
        Variable var = new OctetString("some string");
        trap.add(new VariableBinding(oid, var));

        // Send
        Snmp snmp = new Snmp(transport);
        snmp.send(trap, comtarget);
        transport.close();
        snmp.close();

    }
 

import org.snmp4j.Snmp; //导入方法依赖的package包/类
public static void sendTrapV3(String port) {
    try {
        Address targetAddress = GenericAddress.parse("udp:127.0.0.1/" + port);
        TransportMapping<?> transport = new DefaultUdpTransportMapping();
        Snmp snmp = new Snmp(transport);
        USM usm = new USM(SecurityProtocols.getInstance(), new OctetString(
                MPv3.createLocalEngineID()), 0);
        SecurityModels.getInstance().addSecurityModel(usm);
        transport.listen();

        snmp.getUSM().addUser(new OctetString("MD5DES"),
                new UsmUser(new OctetString("MD5DES"), null, null, null, null));

        // Create Target
        UserTarget target = new UserTarget();
        target.setAddress(targetAddress);
        target.setRetries(1);
        target.setTimeout(11500);
        target.setVersion(SnmpConstants.version3);
        target.setSecurityLevel(SecurityLevel.NOAUTH_NOPRIV);
        target.setSecurityName(new OctetString("MD5DES"));

        // Create PDU for V3
        ScopedPDU pdu = new ScopedPDU();
        pdu.setType(ScopedPDU.NOTIFICATION);
        pdu.add(new VariableBinding(SnmpConstants.sysUpTime));
        pdu.add(new VariableBinding(SnmpConstants.snmpTrapOID, SnmpConstants.linkDown));
        pdu.add(new VariableBinding(new OID("1.2.3.4.5"), new OctetString("Major")));

        // Send the PDU
        snmp.send(pdu, target);

        transport.close();
        snmp.close();
    } catch (Exception e) {
        System.err.println("Error in Sending Trap to (IP:Port)=> " + "127.0.0.1" + ":" + port);
        System.err.println("Exception Message = " + e.getMessage());
    }
}
 

import org.snmp4j.Snmp; //导入方法依赖的package包/类
/**
 * Method for testing snmp V1/V2 get operation while all the input
 * parameters are valid. The method validates the value got after the snmp
 * get operation against the expected value.
 */
@Test
public void testGetV1V2()
{
    try
    {
        PowerMock.mockStaticNice(InetAddress.class);
        final InetAddress inetAddress = EasyMock.createMock(InetAddress.class);
        EasyMock.expect(InetAddress.getByName(targetIP)).andReturn(inetAddress);

        final UdpAddress address = PowerMock.createMockAndExpectNew(UdpAddress.class, inetAddress,
                SnmpManager.DEFAULT_PORT_NUMBER);
        final TransportMapping transportMappings = PowerMock
                .createMockAndExpectNew(DefaultUdpTransportMapping.class);
        final OctetString community = new OctetString(communityName);

        EasyMock.replay(inetAddress);
        PowerMock.replay(address, UdpAddress.class);
        PowerMock.replay(transportMappings, DefaultUdpTransportMapping.class);
        PowerMock.replay(InetAddress.class);

        final Snmp snmp = PowerMock.createMockAndExpectNew(Snmp.class, transportMappings);
        snmp.listen();
        EasyMock.expectLastCall();

        final CommunityTarget communityTarget = PowerMock.createMockAndExpectNew(CommunityTarget.class);
        communityTarget.setCommunity(community);
        EasyMock.expectLastCall();
        communityTarget.setVersion(SnmpConstants.version1);
        EasyMock.expectLastCall();
        communityTarget.setAddress(address);
        EasyMock.expectLastCall();
        communityTarget.setRetries(SnmpManager.DEFAULT_RETRIES);
        EasyMock.expectLastCall();
        communityTarget.setTimeout(SnmpManager.DEFAULT_TIMEOUT);
        EasyMock.expectLastCall();
        PowerMock.replay(communityTarget, CommunityTarget.class);

        final PDU pdu = PowerMock.createMockAndExpectNew(PDU.class);
        pdu.setType(PDU.GET);
        EasyMock.expectLastCall();
        pdu.add(EasyMock.createMock(VariableBinding.class));
        final OID oid = PowerMock.createMock(OID.class, oId);
        final VariableBinding variableBinding = PowerMock.createMockAndExpectNew(VariableBinding.class, oid);
        pdu.add(variableBinding);
        EasyMock.expectLastCall();

        snmp.close();
        EasyMock.expectLastCall();
        PowerMock.replay(oid, OID.class);
        final ResponseEvent responseEvent = EasyMock.createMock(ResponseEvent.class);
        EasyMock.expect(snmp.get(pdu, communityTarget)).andReturn(responseEvent);

        EasyMock.expect(responseEvent.getResponse()).andReturn(pdu).anyTimes();
        Vector< VariableBinding > variableBindings = new Vector< VariableBinding >();
        variableBindings.add(variableBinding);
        EasyMock.expect(pdu.getVariableBindings()).andReturn(variableBindings).anyTimes();
        EasyMock.expect(pdu.getErrorStatus()).andReturn(0).anyTimes();
        EasyMock.expect(pdu.getErrorStatusText()).andReturn("SNMP_ERROR_SUCCESS").anyTimes();

        final Variable variable = new OctetString(getValue);
        EasyMock.expect(variableBinding.getVariable()).andReturn(variable);
        PowerMock.replay(snmp, Snmp.class);
        PowerMock.replay(pdu, PDU.class);
        EasyMock.replay(responseEvent);
        PowerMock.replay(variableBinding, VariableBinding.class);

        final SnmpServiceReturnMesage retnMsgActual = snmpManagerImpl.get(oId, communityName, targetIP,
                SnmpManager.DEFAULT_PORT_NUMBER);

        assertEquals(variable.toString(), retnMsgActual.getResultObject());
    }        
    catch (Exception e)
    {
    	e.printStackTrace();
    }
}
 

import org.snmp4j.Snmp; //导入方法依赖的package包/类
public static void main(String[] args) throws Exception
{
  System.out.println("SNMP GET-NEXT Simple Request");

  // Create TransportMapping and Listen
  TransportMapping transport = new DefaultUdpTransportMapping();
  transport.listen();

  // Create Target Address object
  CommunityTarget comtarget = new CommunityTarget();
  comtarget.setCommunity(new OctetString(community));
  comtarget.setVersion(snmpVersion);
  comtarget.setAddress(new UdpAddress(ipAddress + "/" + port));
  comtarget.setRetries(2);
  comtarget.setTimeout(1000);

  // Create the PDU object
  PDU pdu = new PDU();
  pdu.add(new VariableBinding(new OID(oidValue))); 
  pdu.setRequestID(new Integer32(1));
  pdu.setType(PDU.GETNEXT);
  
  // Create Snmp object for sending data to Agent
  Snmp snmp = new Snmp(transport);

  System.out.println("Sending GetNext Request to Agent ...");
  
  ResponseEvent response = snmp.getNext(pdu, comtarget);

  // Process Agent Response
  if (response != null)
  {
    System.out.println("\nResponse:\nGot GetNext Response from Agent...");
    PDU responsePDU = response.getResponse();

    if (responsePDU != null)
    {
      int errorStatus = responsePDU.getErrorStatus();
      int errorIndex = responsePDU.getErrorIndex();
      String errorStatusText = responsePDU.getErrorStatusText();

      if (errorStatus == PDU.noError)
      {
        System.out.println("Snmp GetNext Response for sysObjectID = " + responsePDU.getVariableBindings());
      }
      else
      {
        System.out.println("Error: Request Failed");
        System.out.println("Error Status = " + errorStatus);
        System.out.println("Error Index = " + errorIndex);
        System.out.println("Error Status Text = " + errorStatusText);
      }
    }
    else
    {
      System.out.println("Error: GetNextResponse PDU is null");
    }
  }
  else
  {
    System.out.println("Error: Agent Timeout... ");
  }
  snmp.close();
}
 

import org.snmp4j.Snmp; //导入方法依赖的package包/类
/**
 * This methods sends the V2 trap to the Localhost in port 163
 */
public void sendSnmpV2Trap()
{
  try
  {
    //Create Transport Mapping
    TransportMapping transport = new DefaultUdpTransportMapping();
    transport.listen();

    //Create Target 
    CommunityTarget comtarget = new CommunityTarget();
    comtarget.setCommunity(new OctetString(community));
    comtarget.setVersion(SnmpConstants.version2c);
    comtarget.setAddress(new UdpAddress(ipAddress + "/" + port));
    comtarget.setRetries(2);
    comtarget.setTimeout(5000);

    //Create PDU for V2
    PDU pdu = new PDU();
    
    // need to specify the system up time
    pdu.add(new VariableBinding(SnmpConstants.sysUpTime, new OctetString(new Date().toString())));
    pdu.add(new VariableBinding(SnmpConstants.snmpTrapOID, new OID(trapOid)));
    pdu.add(new VariableBinding(SnmpConstants.snmpTrapAddress, new IpAddress(ipAddress)));

    // variable binding for Enterprise Specific objects, Severity (should be defined in MIB file)
    pdu.add(new VariableBinding(new OID(trapOid), new OctetString("Major"))); 
    pdu.setType(PDU.NOTIFICATION);
    
    //Send the PDU
    Snmp snmp = new Snmp(transport);
    System.out.println("Sending V2 Trap to " + ipAddress + " on Port " + port);
    snmp.send(pdu, comtarget);
    snmp.close();
  }
  catch (Exception e)
  {
    System.err.println("Error in Sending V2 Trap to " + ipAddress + " on Port " + port);
    System.err.println("Exception Message = " + e.getMessage());
  }
}
 

import org.snmp4j.Snmp; //导入方法依赖的package包/类
public static void sendTrapV3Auth(String port) throws IOException {
    try {
        Address targetAddress = GenericAddress.parse("udp:127.0.0.1/" + port);
        TransportMapping<?> transport = new DefaultUdpTransportMapping();
        Snmp snmp = new Snmp(transport);
        USM usm = new USM(SecurityProtocols.getInstance(), new OctetString(
                MPv3.createLocalEngineID()), 0);
        SecurityModels.getInstance().addSecurityModel(usm);
        transport.listen();

        snmp.getUSM().addUser(
                new OctetString("user"),
                new UsmUser(new OctetString("user"), AuthMD5.ID, new OctetString("12345678"),
                        null, null));

        // Create Target
        UserTarget target = new UserTarget();
        target.setAddress(targetAddress);
        target.setRetries(1);
        target.setTimeout(11500);
        target.setVersion(SnmpConstants.version3);
        target.setSecurityLevel(SecurityLevel.AUTH_NOPRIV);
        target.setSecurityName(new OctetString("user"));

        // Create PDU for V3
        ScopedPDU pdu = new ScopedPDU();
        pdu.setType(ScopedPDU.NOTIFICATION);
        pdu.add(new VariableBinding(SnmpConstants.sysUpTime));
        pdu.add(new VariableBinding(SnmpConstants.snmpTrapOID, SnmpConstants.linkDown));
        pdu.add(new VariableBinding(new OID("1.2.3.4.5"), new OctetString("Major")));

        // Send the PDU
        snmp.send(pdu, target);

        transport.close();
        snmp.close();
    } catch (Exception e) {
        System.err.println("Error in Sending Trap to (IP:Port)=> " + "127.0.0.1" + ":" + port);
        System.err.println("Exception Message = " + e.getMessage());
    }
}
 

import org.snmp4j.Snmp; //导入方法依赖的package包/类
public static void sendTrapV3AuthPriv(String port) throws IOException {
    try {
        Address targetAddress = GenericAddress.parse("udp:127.0.0.1/" + port);
        TransportMapping<?> transport = new DefaultUdpTransportMapping();
        Snmp snmp = new Snmp(transport);
        USM usm = new USM(SecurityProtocols.getInstance(), new OctetString(
                MPv3.createLocalEngineID()), 0);
        SecurityModels.getInstance().addSecurityModel(usm);
        transport.listen();

        snmp.getUSM().addUser(
                new OctetString("user"),
                new UsmUser(new OctetString("user"), AuthMD5.ID, new OctetString("12345678"),
                        PrivDES.ID, new OctetString("passphrase")));

        // Create Target
        UserTarget target = new UserTarget();
        target.setAddress(targetAddress);
        target.setRetries(1);
        target.setTimeout(11500);
        target.setVersion(SnmpConstants.version3);
        target.setSecurityLevel(SecurityLevel.AUTH_NOPRIV);
        target.setSecurityName(new OctetString("user"));

        // Create PDU for V3
        ScopedPDU pdu = new ScopedPDU();
        pdu.setType(ScopedPDU.NOTIFICATION);
        pdu.add(new VariableBinding(SnmpConstants.sysUpTime));
        pdu.add(new VariableBinding(SnmpConstants.snmpTrapOID, SnmpConstants.linkDown));
        pdu.add(new VariableBinding(new OID("1.2.3.4.5"), new OctetString("Major")));

        // Send the PDU
        snmp.send(pdu, target);

        transport.close();
        snmp.close();
    } catch (Exception e) {
        System.err.println("Error in Sending Trap to (IP:Port)=> " + "127.0.0.1" + ":" + port);
        System.err.println("Exception Message = " + e.getMessage());
    }
}