Hi all,
I am having some trouble sending binary data to a servlet from an
applet/application.
The following exception is thrown when I try to send the data :
java.net.ProtocolException: Can't reset method: already connected
at
java.net.HttpURLConnection.setRequestMethod(HttpURLConnection.java:10
6)
at
sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLCo
nnection.java:406)
at Sender.main(Sender.java:28)
The code I used is shown below:
import java.net.*;
import java.io.*;
public class Sender
{
public static void main(String args[])
{
try
{
URL url = new URL("http","sanjiv",80,"/servlet/SvltReceiver");
URLConnection con = url.openConnection();
con.setDoOutput(true);
con.setDoInput(false);
String str = "hello";
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(baos);
dos.writeUTF(str);
dos.close();
byte buffer[] = baos.toByteArray();
con.setRequestProperty("Content-type",";application/octet-stream");
con.setRequestProperty("Content-length",""+buffer.length);
con.connect();
DataOutputStream out = new DataOutputStream(con.getOutputStream());
// assertion occurs here
out.write(buffer);
out.close();
}
catch(Exception e)
{
e.printStackTrace(System.out);
}
}
}
thanks,
Sanjiv
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