how to get send, receive byte and network bandwidth utilization

Using java.net.Networ开发者_运维问答kInterface I am getting the status (up/down) of network.

I want to get the value of send and receive byte on the network card. And I need to calculate network utilization also.

How to get these in Java?

I don't think there is a pure Java way of doing this. So one solution is to use JNI and a native library, which of course would have to be OS-specific.

If you want something more portable, I suggest trying out SNMP. All common OS should support querying such data via SNMP (perhaps after installing an SNMP server), and there are also Java SNMP client implementations available.

I would suggest using OSHI. The NetworkIF class supports everything you need.