如何在Java中使用telnet通过HTTP请求发送xml

Question

I am trying to send an HTML POST request over telnet in Java, I have some XML content which I have to send. But when I try to achieve in java, i am getting "Connection Reset" error. But the same when I do it over putty(unix), I am getting the response xml correctly.

Java Program I used : (Resulting in Connection Reset error)

public class Telnet {public static void main(String[] args) throws Exception {

       Socket socket = new Socket("hostname", 10020);
       String xmled = "<?xml version=1.0?><methodCall><methodName>GetVoucherDetails</methodName><params><param><value><struct><member><name>serialNumber</name><value><string>1038291567</string></value></member><member><name>networkOperatorId</name><value><string>vno2</string></value></member></struct></value></param></params></methodCall>"; 
       System.out.println("Params: " + xmled);

        try {
            Writer out = new OutputStreamWriter(socket.getOutputStream(), "UTF-8");
            out.write("POST /someContext HTTP/1.1\r\n");
            out.write("Accept: text/xml\r\n"); 
            out.write("Connection: close\r\n"); 
            out.write("Content-Length: 489\r\n"); 
            out.write("Content-Type: text/xml\r\n"); 
            out.write("Host: ws2258:10010\r\n"); 
            out.write("User-Agent: ADM/2.4/6.2\r\n"); 
            out.write("Authorization: Basic cHBtc3VzZXI6dnNfJF9wcG11NWVy\r\n");
            out.write(xmled);  
            out.write("\r\n");  
            out.flush();

            InputStream inputstream = socket.getInputStream();
            InputStreamReader inputstreamreader = new InputStreamReader(inputstream);
            BufferedReader bufferedreader = new BufferedReader(inputstreamreader);

            String string = null;
            string = bufferedreader.readLine();
            System.out.println(string);
            while ((string = bufferedreader.readLine()) != null) {
               System.out.println("Received " + string);
            }

       } catch(Exception e) {
           e.printStackTrace();
       } finally {
         socket.close(); 
       }
 }

}

Please suggest me something, I am new to socket programming.

Answer 1

In your Socket constructor, did you mean to put port 10020? HTTP implies port 80 unless your web server is listening on port 10020.

Answer 2

I finally have found the solution for this problem. The fix was quiet simple at the end. We had to send the entire XML content in one single line rather then putting into multiple lines.