Conect Java client with Python server

Question

I made a server python with the next code (i think the rest of the code isn't necessary):

while 1:
 data = conn.recv(BUFFER_SIZE)
 if not data: break
 print "received data:", data
 conn.send(data+'\r\n')
conn.close()

and when i try to received the echo with a Java client, i get a strange message when printing on console:

Mensaje recibido = java.io.DataInputStream@1cf2a0ef

At server point, I'm receiving good the message: Hola Mundo.

The code in Java is:

 DataInputStream ims;
 String data;
 s = new Socket(HOST,PORT);
 oms = new DataOutputStream(s.getOutputStream());
 ims = new DataInputStream(s.getInputStream());
 oms.writeUTF(ms);
 ims.read();
 data = ims.toString();
 oms.close();
 ims.close();
 s.close();
 return data;

I think that ims.toString() is probably wrong.

Answer 1

What you need is to assign data to a string read from the stream:

data=ims.readUTF();

the toString() method in the stream just returns a representation of the object id, it's meaningless.

See http://docs.oracle.com/javase/7/docs/api/java/io/DataInputStream.html#readUTF()

Answer 2

You are correct that ims.toString is wrong. If python is sending a UTF-8 string you could use ims.readUTF().

• Josete Manu: I thought that readUTF() don't return the string, i didn't read the documentation of Java, thank you!
• Josete Manu: It's working, i don't need more help at the moment hahaha thanks!