On Wed, 28 Nov 2001 16:05:32 -0700, Gardner Monte <[EMAIL PROTECTED]> wrote:
<snipped> >this is the code the client is using to make the connection to the servlet. > > String path ="http://www22.addr.com/~mgardne/servlets/ScrapBookServer";; > URL servletURL = new URL(path); > URLConnection connection = servletURL.openConnection(); > connection.setUseCaches(false); > > connection.setRequestProperty("CONTENT_TYPE","application/octet-stream"); > connection.setDoInput(true); > connection.setDoOutput(true); > //make request > OutputStream out = connection.getOutputStream(); > InputStream in = connection.getInputStream(); > DataOutputStream dataOut = new DataOutputStream(out); > dataOut.writeInt(ScrapBookProtocol.GETSCRAPBOOK ); > out.flush(); > out.close(); > //read response > DataInputStream dataIn = new DataInputStream(in); > int vc = dataIn.readInt(); //**exception occurs here!! > System.out.println("Validation Code Received: " + vc); > >When I run the client side program I get a java.io.EOFException, at the call >to dataIn.readInt(), which seems to indicate that the server isn't sending >anything back. >Also, the call to toLog() should write the integer that the client sent to a >log file, and >nothing is getting written there. So, I'm either not making a connection at >all, or the >Servlet is not sending anything back. Am I missing anything here? What is >the correct way >of sending integers back and forth between a program and a servlet?? There seems to be one problem with the code above. When you do the setDoOutput(true), the code will set the request type to POST. Now when you send a post request, you have to specify the content-length header, which tells about the length of the data in the body of the request. You will need to write the data to a buffer, check the length of the data that you are sending and set it as a value of the content-length header. The psedo code might be like. byte[] dataToBeSent; int length = dataToBeSent.length; connection.setRequestProperty("CONTENT-LENGTH",Integer.toString(length)); Then your code should work fine. Regds, Gokul > >--Monte Glenn Gardner ___________________________________________________________________________ To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff SERVLET-INTEREST". Archives: http://archives.java.sun.com/archives/servlet-interest.html Resources: http://java.sun.com/products/servlet/external-resources.html LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
