利用J2ME开发无线蓝牙应用

...

String url =
    serviceRecord.getConnectionURL(
        record.NOAUTHENTICATE_NOENCRYPT, false);

// open a connection to the server
StreamConnection connection =
    (StreamConnection) Connector.open(url);

// Send/receive data

try {
    byte buf[] = new byte[200];
    String msg = "Test message";
    InputStream is = connection.openInputStream();
    OutputStreamos = connection.openOutputStream();
    // send data to the server
    os.write(msg.getBytes);
    // read data from the server
    is.read(buf);
    connection.close();

} catch(IOException e) {
    e.printStackTrace();

}

...