仅通过一个客户端通过ObjectOutputStream发送对象

Question

Suppose we have one server and two or more clients connected to it. The server wants to send through ObjectOutputStream an object so use it and open the server stream output using the method getOutputStream() . The server wants to send this file only to one determinate client that have one field setted in a certain way. the server maintains in a list the object client with all its field. The server wants to send an object only to a client who has a field setted in a certain way.So the server iterates the list and after find that client send to it the object.but how can determinate into the net which is the client?

Answer 1

让每个客户端在其更改时将其状态发送到服务器，或者将对象发送给所有客户端，如果它们的状态为false，则让他们忽略该消息。

Answer 2

If you really want to do this, you will need multiple connections and/or multiple round-trips. Either the clients have to actively sent their status to the server, or the server has to ask them. Or, thirdly, the server could send them all the same message, but with a flag included that means 'only pay attention if you are 'free'.'

Really, you'd be better off learning to use a message queue system. You could use, for example, Apache ActiveMQ, and you could use Spring/JMS or Apache CXF Soap over JMS.