userguide.html

InstantP2P InstantP2Pshi 是一个建立在jxta之上的peer-to-peer即时消息服务。它在功能上包括一对一的即时消息,群体聊天,文件共享等功能。它可以工作在Linux, S

          a secure, one-to-one chat connection with another peer in the current 
          peergroup.  Both peers need to be a member of the current peergroup. 
          </font></p>
        <p><font face="Arial, Helvetica, sans-serif">The left side of the chat 
          panel as two boxes: </font></p>
        <ul>
          <li><font face="Arial, Helvetica, sans-serif"><b>My Preferred Users</b>:&nbsp;This 
            list is similar to a buddy list, and is shows all the users you have 
            opened a chat session with. When you start a new chat session with 
            a peer in the bottom Users list, the user's name is moved automatically 
            in the "My Preferred List". You can switch from one preferred user 
            to another user by double-clicking any entries in the My Preferred 
            Users list. </font></li>
          <li><font face="Arial, Helvetica, sans-serif"><b>User list</b>: This 
            list shows all the peers that have been found in the current peergroup.&nbsp; 
            To connect to a peer and start a chat session, just double-click on 
            the user entry in the list. myJxta will attempt to connect, and open 
            a connection with that peer. </font></li>
        </ul>
        <p><font face="Arial, Helvetica, sans-serif"><img src="images/chat.gif" width="600" height="721"> 
          <BR>
          &nbsp; </font></p>
        <p><font face="Arial, Helvetica, sans-serif">myJXTA&nbsp;can maintain 
          multiple&nbsp;one-to-one chat sessions.&nbsp; The PeerGroup panel shows 
          the current peergroup context. One-to-one chat is always done within 
          the context of the current peergroup. Switching to a new peergroup will 
          refresh the user's list and preferred users lists. <BR>
          &nbsp; </font></p>
        <p><font face="Arial, Helvetica, sans-serif"><B>Search</B></font></p>
        <p><font face="Arial, Helvetica, sans-serif">The Search application allows 
          you to search for file content in the current peergroup. Clicking on 
          the Search tab brings up the above Search panel. You can search for 
          all the contents shared in the current peergroup&nbsp;by typing the 
          initial few letters of the content names and pressing the ENTER key. 
          For example, searching on "<i>.txt"</i> would search for all the text 
          files available on the network. </font></p>
        <p><font face="Arial, Helvetica, sans-serif"><img src="images/search.gif" width="600" height="721"> 
          </font></p>
        <p><font face="Arial, Helvetica, sans-serif">Searched contents can be 
          saved locally or viewed by selecting and double-clicking&nbsp;the content 
          entry in the Search panel. </font></p>
        <blockquote> 
          <hr>
          <p><font face="Arial, Helvetica, sans-serif"><b>NOTE:</b><i> </i>Wildcard 
            characters such as &quot;*&quot; are not used for myJXTA file search, 
            but are used in Group Search.</font></p>
          <hr>
        </blockquote>
        <p><font face="Arial, Helvetica, sans-serif">By default, search content 
          is not shared unless the "Auto Share" option is enables (see Edit Menu). 
          </font></p>
        <p><font face="Arial, Helvetica, sans-serif"><img src="images/auto.gif" width="140" height="83"></font></p>
        <p><font face="Arial, Helvetica, sans-serif">The "Auto Share" option allows 
          all content that you saved or viewed to be shared with other peers, 
          so other members of the peergroups can find the content from your peer. 
          You can only find content that has been shared in the current peergroup 
          context. You must switch your peergroup to search for content in another 
          peergroup. <BR>
          &nbsp; </font></p>
        <p><font face="Arial, Helvetica, sans-serif"><B>Share</B> </font></p>
        <p><font face="Arial, Helvetica, sans-serif">The Share application allows 
          you to share documents/files with other peers in the current peergroup. 
          Clicking on the "Share" tab takes you to the share screen, where you 
          will get two buttons <i>Add Content</i> and <i>Remove Content</i>. Clicking 
          <i>Add Content </i>pops up a "select file to share" box in which you 
          can browse to the file you want to share. Select a file and click <i>Remove 
          Content </i>to remove it from the shared list. </font></p>
        <p><font face="Arial, Helvetica, sans-serif"> <img src="images/share.gif" width="600" height="721"></font></p>
        <p><font face="Arial, Helvetica, sans-serif">Clicking on a file in the 
          Shared Content space brings up a box with the properties of the file.</font></p>
      </blockquote>
      <p><font face="Arial, Helvetica, sans-serif"> <b><a name="2.4"></a>2.4 Status 
        section</b> </font></p>
      <blockquote> 
        <p><font face="Arial, Helvetica, sans-serif">The bottom section displays 
          relevant messages to the user such as network connection status or completion 
          of a task. </font></p>
      </blockquote>
      <hr>
      <h3><font face="Arial, Helvetica, sans-serif"><B><a name="3.0"></a>3.0 Appendix: 
        Advanced myJXTA Configuration</B> </font></h3>
      <p><font face="Arial, Helvetica, sans-serif">By default myJXTA is set with 
        the TCP/IP and HTTP transport loading a predefined bootstrapping set of 
        rendezvous and router peers. The JXTA Configurator window allows advanced 
        users to edit these settings. </font></p>
      <p><font face="Arial, Helvetica, sans-serif"><b>Advanced Network Configuration</b> 
        </font></p>
      <p><font face="Arial, Helvetica, sans-serif">The Advanced panel will allow 
        you to do the following:</font><font face="Arial, Helvetica, sans-serif"> 
        </font></p>
      <ul>
        <li><font face="Arial, Helvetica, sans-serif">Enable debugging via the 
          Trace Level button. You can turn on/off different levels of debugging 
          </font></li>
        <li><font face="Arial, Helvetica, sans-serif">Enable or disable the TCP/IP&nbsp;transport. 
          Enable manual configuration of the TCP/IP&nbsp;address and port number. 
          Select a specific IP&nbsp;interface, if your peer has multiple network 
          interfaces. You can also select the IP&nbsp;address manually. If you 
          run two instances of JXTA on the same peer you need to use two different 
          port numbers. The advanced setting also allows you to specify a public 
          NAT addresses </font></li>
        <li><font face="Arial, Helvetica, sans-serif">Enable or disable the HTTP&nbsp;transport. 
          Select manually your HTTP server address. </font></li>
      </ul>
      <p><font face="Arial, Helvetica, sans-serif"><img src="images/network.gif" width="552" height="537"> 
        </font></p>
      <p><font face="Arial, Helvetica, sans-serif"><B>RendezVous/Routers Configuration</B> 
        </font> </p>
      <P><font face="Arial, Helvetica, sans-serif">By default myJXTA&nbsp;downloads 
        a predefined set of Rendezvous and Routers. Users can add or remove rendezvous 
        or routers (gateways).&nbsp; You can reload the predefined set via the 
        <I>Download</I> button. By default your peers is not configured as a rendezvous 
        or a router peer. You can enable your peer to be a rendezvous and router 
        peer. <BR>
        &nbsp; </font> 
      <P><font face="Arial, Helvetica, sans-serif"><IMG height=537 src="images/router.gif" width=552> 
        </font></P>
      <hr>
      <h3><font face="Arial, Helvetica, sans-serif"><b><a name="4.0"></a>4.0 Glossary</b></font></h3>
      <P><b><font face="Arial, Helvetica, sans-serif">Advertisement:</font></b><font face="Arial, Helvetica, sans-serif"> 
        Project JXTA's language- neutral metadata structure that describes peer 
        resources such as peers, peer groups, pipes, and services. Advertisements 
        are represented as XML documents.</font></P>
      <P><font face="Arial, Helvetica, sans-serif"><b>Discovery</b>: The process 
        of finding other services and resources on the JXTA network.</font></P>
      <P><font face="Arial, Helvetica, sans-serif"><b>Endpoint</b>: See Peer Endpoint 
        or Pipe End point</font></P>
      <P><font face="Arial, Helvetica, sans-serif"><b>Message:</b> The basic unit 
        of data exchange between peers; each message contains an ordered sequence 
        of named sub sections, called message elements, which can hold any form 
        of data. Messages are exchanged by the Pipe Services and the End Point 
        Services.</font></P>
      <P><font face="Arial, Helvetica, sans-serif"><b>NetPeergroup: </b>The root 
        of all the peergroups. When starting myJXTA&nbsp;is always in the NetPeerGroup. 
        </font></P>
      <P><font face="Arial, Helvetica, sans-serif"><b>P2P</b>: Peer-to-peer; a 
        decentralized networking paradigm in which distributed nodes, or peers, 
        communicate and work collaboratively to provide services.</font></P>
      <P><font face="Arial, Helvetica, sans-serif"><b>Peer: </b>Any<b> </b>networked 
        device that implements one or more of the JXTA protocols (e.g. a computer, 
        PDA, or phone).</font></P>
      <P><font face="Arial, Helvetica, sans-serif"><b>Peer Endpoint:</b> A URI 
        that uniquely identifies a peer network interface (e.g. a TCP port and 
        associated IP address). </font></P>
      <p><font face="Arial, Helvetica, sans-serif"><b>Peer Group: </b>Self organizing 
        collection of JXTA peers that have a common set of interests and have 
        agreed upon a common set of services. Peers have the ability to create 
        both public groups (open to anyone) or private groups (requires name and 
        password). All JXTA peers are members of the NetPeergroup by default.</font></p>
      <p><font face="Arial, Helvetica, sans-serif"><b>Peer Group ID:</b> An ID 
        that uniquely identifies a Peer Group.</font></p>
      <p><font face="Arial, Helvetica, sans-serif"><b>Peer ID:</b> An ID that 
        uniquely identifies a Peer.</font></p>
      <p><font face="Arial, Helvetica, sans-serif"><b>Pipe:</b> An asynchronous 
        and unidirectional message transfer mechanism used by peers that to send 
        and receive messages. Pipes are bound to Peer endpoints such as a TCP 
        port or an associated IP address.</font></p>
      <P><font face="Arial, Helvetica, sans-serif"><b>Pipe Endpoint:</b> Referred 
        to as input pipes and output pipes; they are bound to peer endpoints at 
        runtime.</font></P>
      <P><font face="Arial, Helvetica, sans-serif"><b>Rendezvous Peer</b>: Maintains 
        a cache of advertisements and forwards discovery requests to other rendezvous 
        peers to help peers discover resources.</font></P>
      <P><font face="Arial, Helvetica, sans-serif"><b>URI</b>: Uniform Resource 
        Identifier; a compact string of characters for identifying an abstract 
        or physical resource (see <a href="%3Cfont%20face=%22Arial,%20Helvetica,%20sans-serif%22%3Ehttp://www.w3.org/addressing/URL/URI_overview.html%3C/font%3E">http://www.w3.org/addressing/URL/URI_overview.html</a>, 
        for more details). </font><!-- /Servlet-Specific template --></P>
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