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Java Forum / General / March 2007newbie - java socket programming
need help to get some java code examples for sending fixedformat data from client -----> socketserver --------> server2 ( no socket ) and then server2------>socketserver-------->client and the data once sent by the client should process by server2 and received by the client. any help please jack > need help to get some java code examples for sending fixedformat data .. > and the data once sent by the client should process by server2 and > received by the client. any help please Trying my 'standard search' on such things.. <http://www.google.com/search?q=java+tutorial+server+client> Suggests the second top link at the moment (or the top link) are good places to start. >From memory, a complete code example is included. HTH Andrew T. Thanks for your help, sure that's a good way to start to learn on sockets. Although I am not an expert, I did do some search for the multithreaded socket programming gathered some knowledge, but was wondering if I could get some help gather information on how to come up with some psuedo-code/examples for the process I am trying to implement. As one would gather from my initial post, the idea is to have a client send fixedformat message to a socketserver(this part is okay), and the socketserver to send the "same message" in the same or xml format to the secondserver( this is where I am trying to get some help). The second server processes the input data, and returns response to the socketserver, which inturn will send it to the client. The caveat as you see is that for the secondserver I cannot use sockets, my options are http/https/webservices. And the client waits for the response on the request made. Here is an example of a fixed format data. client sends this message sdfjdoso9refsdfdsf sdfdgtgop dsfdsfdsf sdfdsf dsfdsf dsfytuytbvqwghh gjyuertew jkmyukthg 324fdgfh76hj 76867 EOFEOFEOF after the socketserver sends it to and processed by the secondserver the client receives this message trhthdfgdsfew4r hghjhgjh gfhjgh ghjhgjer sdfdsf dfhg78kasw32545687980hgjdsfdg6576577687 EOFEOFEOF Thanks for any help. Jack. > > need help to get some java code examples for sending fixedformat data > .. [quoted text clipped - 11 lines] > > Andrew T. > Thanks for your help, sure that's a good way to start to learn on > sockets. > > Although I am not an expert, I did do some search for the > multithreaded socket programming gathered some knowledge, but was I'm not really an expert either, but I'm trying to learn more about Java network programming so your question was interesting to me. My first question back is "What is fixedformat?" Is that some Java term I'm not familiar with or some other API? Other than the obvious (just a descriptive term), I didn't recognize it. > The second server processes the input data, and returns response to > the socketserver, which inturn will send it to the client. The caveat > as you see is that for the secondserver I cannot use sockets, my > options are http/https/webservices. An HTTP connection IS a socket. There's plenty of examples of speaking HTTP over a Java socket on the web. If you can't find any to your liking, I think the example HTTP server in O'Reilly's _Learning Java_ is a pretty good example. > And the client waits for the response on the request made. You have three servers here, not two. Any system that waits for incoming requests is a server, and you'll need to make sure all firewalls, proxies, etc. in front of this "client" can accept an incoming request from a foreign system. If not, you may have to leave the original connection open from the client, and have the first sever relay the message for server2. ..me an email. (Which was, as per usual, deleted - unread) Please note the 'quote'. <http://groups.google.com/groups/profile? enc_user=7mTjyhYAAADCSWBnolz9mAH1YeBMyEJTo4cocwWvDVg2RHsu8f1bCg> If you have something to say about this thread, worth hearing, please put it on the (public) thread. Andrew T. sorry. meant to hit reply and clicked reply to author. > ..me an email. (Which was, as per usual, > deleted - unread) [quoted text clipped - 8 lines] > > Andrew T. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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