P2P java file transfer

First off, I am VERY new to Java, but wanted to know if it was possible. I could not find any tutorials or explanation online:

Is it possible to send/receiv开发者_如何转开发e files not through a server, but P2P. I want a file, when selected, to be sent to another PC running the client. What is the best method of doing this? Is there something I have missed?

(P.s. My first stackoverflow question, please be nice :D)

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Give JXTA a try, it should satisfy all your needs.

Or try a DHT implementation for the P2P part and implement the file transfer either over the DHT or just the sesssion initiation by DHT and some other kind of direct file transfer.

• openkad
• JDHT

(DHT selection taken from this question)

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Maybe you want to have a look at http://www.adp-gmbh.ch/blog/2004/november/15.html

Every Peer in a P2P-system will have both roles (receiver AND sender that is each peer is server AND client at the same time).

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It is certainly possible. Check the Free Pastry implementation

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JXTA are a little complex to someone new in Java and it has some limitations with scalability and perfomance of his communications layers. Another option is XMPP, if a pure P2P is not mandatory.

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Pastry provides a DHT. Its done Java and very easy to use. Its storage system is known as PAST and a tutorial can be found here : https://trac.freepastry.org/wiki/tut_past

I've had a great experience working with it.