src\SnmpExample.java:81: 不兼容的类型

Question

src\SnmpExample.java:81: 不兼容的类型
找到： java.util.Vector<capture#371 of ? extends org.snmp4j.smi.VariableBinding>需要： java.util.Vector<org.snmp4j.smi.VariableBinding>
                        Vector<VariableBinding> recVBs = respEvnt.getResponse().
getVariableBindings();                   ^
1 错误请高手们帮看看，这要怎么解决呀？

Answer 1

直接这样为recVBs泛型集合添加VariableBinding的方式不对。
应该用: recVBs.add(respEvnt.getResponse().getVariableBindings());

Answer 2

    import java.io.IOException;  
    import java.net.InetAddress;  
    import java.util.Vector;      import org.snmp4j.AbstractTarget;  
    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.UdpAddress;  
    import org.snmp4j.smi.VariableBinding;  
    import org.snmp4j.transport.DefaultUdpTransportMapping;  
      
    public class SnmpExample  
    {  
          
        public static void main(String[] args)  
        {  
            try  
            {  
                Address targetAddress = GenericAddress.parse("udp:127.0.0.1/161");  
                TransportMapping transport = new DefaultUdpTransportMapping();  
                Snmp snmp = new Snmp(transport);  
                transport.listen();//监听  
                  
                  
                CommunityTarget target = new CommunityTarget();  
                target.setCommunity(new OctetString("public"));//设置共同体名  
                target.setAddress(targetAddress);//设置目标Agent地址  
                target.setRetries(2);//重试次数  
                target.setTimeout(5000);//超时设置  
                target.setVersion(1);//版本  
                  
                PDU request = new PDU();  
                request.setType(PDU.GET);//操作类型GET  
                request.add(new VariableBinding(new OID(".1.3.6.1.2.1.1.1.0")));//OID_sysDescr  
                request.add(new VariableBinding(new OID(".1.3.6.1.2.1.1.2.0")));//OID_sysObjectID  
                request.add(new VariableBinding(new OID(".1.3.6.1.2.1.1.3.0")));//OID_sysUpTime  
      
                System.out.println("Request UDP:" + request);  
                  
                ResponseEvent respEvt = snmp.send(request, target);  
                  
                //读取得到的绑定变量  
                if (respEvt != null && respEvt.getResponse()!=null)  
                {  
                    Vector <VariableBinding> revBindings = respEvt.getResponse().getVariableBindings();  
                    for (int i=0; i<revBindings.size();i++)  
                    {  
                        VariableBinding vbs = revBindings.elementAt(i);  
                        System.out.println(vbs.getOid()+":"+vbs.getVariable());  
                    }  
                }  
      
            }  
            catch (IOException e)  
            {  
                e.printStackTrace();  
            }  
        }  
    }  网上找了个snmp实例，怎么都通不过，搞了一周了，头都搞晕了。