Asynchronous communication methods seek multicast (MulticastChannel)! ! !

  // join multicast group on this interface, and also use this
       // interface for outgoing multicast datagrams
       NetworkInterface ni = NetworkInterface.getByName("hme0");
  
       DatagramChannel dc = DatagramChannel.open(StandardProtocolFamily.INET)
           .setOption(StandardSocketOptions.SO_REUSEADDR, true)
           .bind(new InetSocketAddress(5000))
           .setOption(StandardSocketOptions.IP_MULTICAST_IF, ni);
  
       InetAddress group = InetAddress.getByName("225.4.5.6");
  
       MembershipKey key = dc.join(group, ni);
  
  

This is a copy from the javadoc on the sample code. Not how to read, especially in the first two . . . Explain it. . .

I want to use nio package asynchronous communication model to achieve the multicast client receiving , rather than the traditional model . This should save the client the resources , not been in a listening state ! Is that right ? ? ? ( I use the traditional listening mode , a computer server and open a two clients , cpu can reach 60% of the == . )

discovered behind jdk 7 in multicastChannel should be able to achieve what I want to achieve, but do not know how to use , seeking advice. . .
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JDK 7 there are cases in the sample , so why do not you check ?

in JDK 7 sample of nio \ multicast directory.

JDK 7 's demo and sample be downloaded here:
http://www.oracle.com/technetwork/java/javase/downloads / index.html
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master, come around this time that the jar up . . .
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did not care . . . . . I'll hang == .
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the problem is how it was. . . Reaction to the point ah == . Whining -----
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did not get off , but there api can check oh.
java.net.NetworkInterface.java
java.nio.channels.DatagramChannel.java
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you mean you look at the source - . . . My jdk Chinese version is 1.6 with no content in this area . . . Eggs broken
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you use TCP SocketChannel will use it ? It is like this is also used by the Selector register event

By DatagramChannel # send send data , receive data via DatagramChannel # receive chant
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SocketChannel operator will use it. . . Oh, the critical time , there is the old coming out !

first few weeks at school socketChannel when you asked a lot of questions ~
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I have tried to follow that logic nio wrote , but failed. . .
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Oh, ah , let me see say , thank you ha ! Think about loneliness in my sleep before actually able to receive such exciting news , moved ing
fought ! ! !
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Come on, come
------ For reference only --------------------------------------- < br> this is the landlord of JDK7
look JDK7 the API
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landlord, you did not get to know , I have encountered this problem seek QQ. My QQ is 1031248990