SNMP获取指定IP地址机器的进程数(要导入SNMP4J.jar和snmp.jar包)

package com.gosun.cecs.service;

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 SnmpGet {
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:192.168.28.20/161");
TransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
transport.listen();
}

@SuppressWarnings("unchecked")
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(".1.3.6.1.2.1.25.1.6.0")));
// 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 {
SnmpGet util = new SnmpGet();
util.initComm();
util.sendPDU();
} catch (IOException e) {
e.printStackTrace();
}
}
}