Subject: m-world.com / mobile portal / J2ME categorization-links needed - msg#00188

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sending/receiving bytes streams

Hi, I'm learning how to send a stream (array) of bytes from a phone (emulator) to a servlet (I aim to know the way of sending images). My servlet writes the following response to MIDlet's request: you tell me: ,0 hits: 32 I mean, the servlet gets the request but no data is available at the InputStream. ¿Is this the way to send data to a servlet? MIDlet side: HttpConnection hc = null; OutputStream out = null; int num_msg; // Some data to send. I use a String just to try String msg = "msg number " + ++num_msg; hc = (HttpConnection)Connector.open(url); hc.setRequestMethod(HttpConnection.POST); out = hc.openOutputStream(); out.write(msg.getBytes()); out.flush(); .... code for reading servlet's response (works fine). Servlet side : public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, java.io.IOException { ServletInputStream is = req.getInputStream(); int size=0; size= is.available(); byte[] data = new byte[size]; is.read(data); String msg = new String(data); resp.setContentType("text/plain"); PrintWriter pw = resp.getWriter(); pw.println("you tell me: " + msg + "," + size); pw.println("hits: " + ++mCount); } TIA Alberto Álvarez Besada Tlf.: +34 914002155 e-mail.: aalvarb1@xxxxxxxxxxxx =========================================================================== To unsubscribe, send email to listserv@xxxxxxxxxxxx and include in the body of the message "signoff KVM-INTEREST". For general help, send email to listserv@xxxxxxxxxxxx and include in the body of the message "help".

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Re: sending/receiving bytes streams

try to add following properties after setRequstMethod - espcially Content-Type may help - it may not be the right content type for sending images, but at least you should get some data. c.setRequestProperty("If-Modified-Since", "29 Oct 1999 19:43:31 GMT"); c.setRequestProperty("User-Agent", "Profile/MIDP-1.0 Configuration/CLDC-1.0"); c.setRequestProperty("Content-Type", "text/html"); c.setRequestProperty("Content-Language", "en-US"); // regards Hardy On Thursday 23 October 2003 11:39 am, you wrote: > Hi, > I'm learning how to send a stream (array) of bytes from a phone > (emulator) to a servlet (I aim to know the way of sending images). > > My servlet writes the following response to MIDlet's request: > > you tell me: ,0 > hits: 32 > > I mean, the servlet gets the request but no data is available at > the InputStream. ¿Is this the way to send data to a servlet? > > MIDlet side: > > HttpConnection hc = null; > OutputStream out = null; > int num_msg; > > // Some data to send. I use a String just to try > String msg = "msg number " + ++num_msg; > > hc = (HttpConnection)Connector.open(url); > hc.setRequestMethod(HttpConnection.POST); > > out = hc.openOutputStream(); > out.write(msg.getBytes()); > > out.flush(); > > .... code for reading servlet's response (works fine). > > > Servlet side : > > public void doPost(HttpServletRequest req, HttpServletResponse resp) throws > ServletException, java.io.IOException { > ServletInputStream is = req.getInputStream(); > int size=0; > size= is.available(); > > byte[] data = new byte[size]; > is.read(data); > > > String msg = new String(data); > resp.setContentType("text/plain"); > PrintWriter pw = resp.getWriter(); > pw.println("you tell me: " + msg + "," + size); > pw.println("hits: " + ++mCount); > } > > > TIA > > Alberto Álvarez Besada > > Tlf.: +34 914002155 > e-mail.: aalvarb1@xxxxxxxxxxxx > > > =========================================================================== > To unsubscribe, send email to listserv@xxxxxxxxxxxx and include in the body > of the message "signoff KVM-INTEREST". For general help, send email to > listserv@xxxxxxxxxxxx and include in the body of the message "help". -- Hardy Henneberg Henneberg Consult ApS Grønnevej 44 2830 Virum Danmark tel: (45) 30704565 http://www.hhenne.dk =========================================================================== To unsubscribe, send email to listserv@xxxxxxxxxxxx and include in the body of the message "signoff KVM-INTEREST". For general help, send email to listserv@xxxxxxxxxxxx and include in the body of the message "help".

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sending/receiving bytes streams

Hi, I'm learning how to send a stream (array) of bytes from a phone (emulator) to a servlet (I aim to know the way of sending images). My servlet writes the following response to MIDlet's request: you tell me: ,0 hits: 32 I mean, the servlet gets the request but no data is available at the InputStream. ¿Is this the way to send data to a servlet? MIDlet side: HttpConnection hc = null; OutputStream out = null; int num_msg; // Some data to send. I use a String just to try String msg = "msg number " + ++num_msg; hc = (HttpConnection)Connector.open(url); hc.setRequestMethod(HttpConnection.POST); out = hc.openOutputStream(); out.write(msg.getBytes()); out.flush(); .... code for reading servlet's response (works fine). Servlet side : public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, java.io.IOException { ServletInputStream is = req.getInputStream(); int size=0; size= is.available(); byte[] data = new byte[size]; is.read(data); String msg = new String(data); resp.setContentType("text/plain"); PrintWriter pw = resp.getWriter(); pw.println("you tell me: " + msg + "," + size); pw.println("hits: " + ++mCount); } TIA Alberto Álvarez Besada Tlf.: +34 914002155 e-mail.: aalvarb1@xxxxxxxxxxxx =========================================================================== To unsubscribe, send email to listserv@xxxxxxxxxxxx and include in the body of the message "signoff KVM-INTEREST". For general help, send email to listserv@xxxxxxxxxxxx and include in the body of the message "help".

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Re: sending/receiving bytes streams

try to add following properties after setRequstMethod - espcially Content-Type may help - it may not be the right content type for sending images, but at least you should get some data. c.setRequestProperty("If-Modified-Since", "29 Oct 1999 19:43:31 GMT"); c.setRequestProperty("User-Agent", "Profile/MIDP-1.0 Configuration/CLDC-1.0"); c.setRequestProperty("Content-Type", "text/html"); c.setRequestProperty("Content-Language", "en-US"); // regards Hardy On Thursday 23 October 2003 11:39 am, you wrote: > Hi, > I'm learning how to send a stream (array) of bytes from a phone > (emulator) to a servlet (I aim to know the way of sending images). > > My servlet writes the following response to MIDlet's request: > > you tell me: ,0 > hits: 32 > > I mean, the servlet gets the request but no data is available at > the InputStream. ¿Is this the way to send data to a servlet? > > MIDlet side: > > HttpConnection hc = null; > OutputStream out = null; > int num_msg; > > // Some data to send. I use a String just to try > String msg = "msg number " + ++num_msg; > > hc = (HttpConnection)Connector.open(url); > hc.setRequestMethod(HttpConnection.POST); > > out = hc.openOutputStream(); > out.write(msg.getBytes()); > > out.flush(); > > .... code for reading servlet's response (works fine). > > > Servlet side : > > public void doPost(HttpServletRequest req, HttpServletResponse resp) throws > ServletException, java.io.IOException { > ServletInputStream is = req.getInputStream(); > int size=0; > size= is.available(); > > byte[] data = new byte[size]; > is.read(data); > > > String msg = new String(data); > resp.setContentType("text/plain"); > PrintWriter pw = resp.getWriter(); > pw.println("you tell me: " + msg + "," + size); > pw.println("hits: " + ++mCount); > } > > > TIA > > Alberto Álvarez Besada > > Tlf.: +34 914002155 > e-mail.: aalvarb1@xxxxxxxxxxxx > > > =========================================================================== > To unsubscribe, send email to listserv@xxxxxxxxxxxx and include in the body > of the message "signoff KVM-INTEREST". For general help, send email to > listserv@xxxxxxxxxxxx and include in the body of the message "help". -- Hardy Henneberg Henneberg Consult ApS Grønnevej 44 2830 Virum Danmark tel: (45) 30704565 http://www.hhenne.dk =========================================================================== To unsubscribe, send email to listserv@xxxxxxxxxxxx and include in the body of the message "signoff KVM-INTEREST". For general help, send email to listserv@xxxxxxxxxxxx and include in the body of the message "help".