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Message:
application-servlet communication URGENT!!!
Posted by Raging Bull on November 24, 2001 at 7:52 AM
People, I need to upload a file from a workstation to a server. It should be asynchronous(ie, not based on user interaction).Hence, there is no form (html etc) involved. So i use a java client at the workstation and a servlet. Here is the code snippet. //Client URL url = new URL("http:m/c:port/servlet/FileuploadServlet"); URLConnection con = url.openConnection(); con.setDoInput(true); con.setDoOutput(true); con.setUseCaches (false); con.setRequestProperty("Content-Type","multipart;application/octet-stream"); System.out.println("before opening output stream"); ObjectOutputStream out = new ObjectOutputStream(con.getOutputStream()); // System.out.println("after opening output stream"); out.writeObject("Success!"); out.flush(); //Servlet, in a method performTask() which is called by both //doget and dopost ObjectInputStream oin = new ObjectInputStream(request.getInputStream()); //Even though the client is opening an output stream , the control never comes to this line Object obj = oin.readObject(); System.out.println("Servlet: " + obj); If the reverse happens, ie, servlet opens output stream and writes to client, then it works, but not in this case. Any thoughts, anyone? It's very urgent. Raging bull
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