SNMP4J实现Snmp Trap

利用SNMP4J实现Snmp Trap完整例子

:
import java.io.IOException;  
import java.net.UnknownHostException;  
import java.util.Vector;  
 
import org.snmp4j.CommandResponder;  
import org.snmp4j.CommandResponderEvent;  
import org.snmp4j.MessageDispatcherImpl;  
import org.snmp4j.Snmp;  
import org.snmp4j.TransportMapping;  
import org.snmp4j.mp.MPv1;  
import org.snmp4j.mp.MPv2c;  
import org.snmp4j.mp.MPv3;  
import org.snmp4j.security.SecurityModels;  
import org.snmp4j.security.SecurityProtocols;  
import org.snmp4j.security.USM;  
import org.snmp4j.smi.Address;  
import org.snmp4j.smi.GenericAddress;  
import org.snmp4j.smi.OctetString;  
import org.snmp4j.smi.TcpAddress;  
import org.snmp4j.smi.UdpAddress;  
import org.snmp4j.smi.VariableBinding;  
import org.snmp4j.transport.DefaultTcpTransportMapping;  
import org.snmp4j.transport.DefaultUdpTransportMapping;  
import org.snmp4j.util.MultiThreadedMessageDispatcher;  
import org.snmp4j.util.ThreadPool;  
 
/** 
* 本类用于监听代理进程的Trap信息 
*  
* @author zhanjia 
* 
*/ 
public class MultiThreadedTrapReceiver implements CommandResponder {  
 
    private MultiThreadedMessageDispatcher dispatcher;  
    private Snmp snmp = null;  
    private Address listenAddress;  
    private ThreadPool threadPool;  
 
    public MultiThreadedTrapReceiver() {  
        // BasicConfigurator.configure();  
    }  
 
    private void init() throws UnknownHostException, IOException {  
        threadPool = ThreadPool.create("Trap", 2);  
        dispatcher = new MultiThreadedMessageDispatcher(threadPool,  
                new MessageDispatcherImpl());  
        listenAddress = GenericAddress.parse(System.getProperty(  
                "snmp4j.listenAddress", "udp:192.168.1.23/162")); // 本地IP与监听端口  
        TransportMapping transport;  
        // 对TCP与UDP协议进行处理  
        if (listenAddress instanceof UdpAddress) {  
            transport = new DefaultUdpTransportMapping(  
                    (UdpAddress) listenAddress);  
        } else {  
            transport = new DefaultTcpTransportMapping(  
                    (TcpAddress) listenAddress);  
        }  
        snmp = new Snmp(dispatcher, transport);  
        snmp.getMessageDispatcher().addMessageProcessingModel(new MPv1());  
        snmp.getMessageDispatcher().addMessageProcessingModel(new MPv2c());  
        snmp.getMessageDispatcher().addMessageProcessingModel(new MPv3());  
        USM usm = new USM(SecurityProtocols.getInstance(), new OctetString(MPv3  
                .createLocalEngineID()), 0);  
        SecurityModels.getInstance().addSecurityModel(usm);  
        snmp.listen();  
    }  
 
      
    public void run() {  
        try {  
            init();  
            snmp.addCommandResponder(this);  
            System.out.println("开始监听Trap信息!");  
        } catch (Exception ex) {  
            ex.printStackTrace();  
        }  
    }  
 
    /** 
     * 实现CommandResponder的processPdu方法, 用于处理传入的请求、PDU等信息 
     * 当接收到trap时，会自动进入这个方法 
     *  
     * @param respEvnt 
     */ 
    public void processPdu(CommandResponderEvent respEvnt) {  
        // 解析Response  
        if (respEvnt != null && respEvnt.getPDU() != null) {  
            Vector<VariableBinding> recVBs = respEvnt.getPDU().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) {  
        MultiThreadedTrapReceiver multithreadedtrapreceiver = new MultiThreadedTrapReceiver();  
        multithreadedtrapreceiver.run();  
    }  
 
} 
Coder:

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;  
 
/** 
* 本类用于向管理进程发送Trap信息 
*  
* @author zhanjia 
* 
*/ 
public class SnmpUtilSendTrap {  
 
    private Snmp snmp = null;  
 
    private Address targetAddress = null;  
 
    public void initComm() throws IOException {  
 
        // 设置管理进程的IP和端口  
        targetAddress = GenericAddress.parse("udp:192.168.1.23/162");  
        TransportMapping transport = new DefaultUdpTransportMapping();  
        snmp = new Snmp(transport);  
        transport.listen();  
 
    }  
 
    /** 
     * 向管理进程发送Trap报文 
     *  
     * @throws IOException 
     */ 
    public void sendPDU() throws IOException {  
 
        // 设置 target  
        CommunityTarget target = new CommunityTarget();  
        target.setAddress(targetAddress);  
 
        // 通信不成功时的重试次数  
        target.setRetries(2);  
        // 超时时间  
        target.setTimeout(1500);  
        // snmp版本  
        target.setVersion(SnmpConstants.version2c);  
 
        // 创建 PDU  
        PDU pdu = new PDU();  
        pdu.add(new VariableBinding(new OID(".1.3.6.1.2.3377.10.1.1.1.1"),  
                new OctetString("SnmpTrap")));  
        pdu.add(new VariableBinding(new OID(".1.3.6.1.2.3377.10.1.1.1.2"),  
                new OctetString("JavaEE")));  
        pdu.setType(PDU.TRAP);  
 
        // 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 {  
            SnmpUtilSendTrap util = new SnmpUtilSendTrap();  
            util.initComm();  
            util.sendPDU();  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
    }  
 
} 
1、运行MultiThreadedTrapReceiver类，提示“开始监听Trap信息!”并处理监听状态

2、运行SnmpUtilSendTrap类，运行完毕后，将会在“开始监听Trap信息!”后面显示：

1.3.6.1.2.3377.10.1.1.1.1 : SnmpTrap
1.3.6.1.2.3377.10.1.1.1.2 : JavaEE

MultiThreadedTrapReceiver输出面板中显示以上两行即表示测试成功！