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POConnection resets while trying to read from Socket
 

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  1. POConnection resets while trying to read from Socket
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    <p>I'm developing a simple application to read data from a remote server (I don't have access to the server code). It's going through the connection process, but when I try to read some data from the server, the conection resets.</p> <p>Here's my code:</p> <pre><code>import java.io.IOException; import java.io.InputStream; import java.net.InetSocketAddress; import java.net.Socket; import java.net.UnknownHostException; import java.util.HashMap; import java.util.Map; import java.util.Map.Entry; public class ProtocoloX { private byte[] bytes = new byte[1024]; // private byte[] bytes = new byte[] { (byte) 0xC6, 0x57, 0x54, (byte) 0x95, // 0x5E, (byte) 0x9E, 0x6B, (byte) 0xC6, 0x55, 0x17, 0x55, 0x52, // (byte) 0x9E, 0x21 }; private Socket cliente; private final String HOST = "177.71.195.77"; private final int PORT = 52246; private Map&lt;Byte, Byte&gt; table4x5 = new HashMap&lt;Byte, Byte&gt;(); private Map&lt;Byte, Byte&gt; table5x4 = new HashMap&lt;Byte, Byte&gt;(); private String msgReceived = new String(); private byte[] packetsToSend; private int packetsToSendLength = 0; public ProtocoloX() { table4x5.put((byte) 0x0, (byte) 0x1e); table4x5.put((byte) 0x1, (byte) 0x09); table4x5.put((byte) 0x2, (byte) 0x14); table4x5.put((byte) 0x3, (byte) 0x15); table4x5.put((byte) 0x4, (byte) 0x0a); table4x5.put((byte) 0x5, (byte) 0x0b); table4x5.put((byte) 0x6, (byte) 0x0e); table4x5.put((byte) 0x7, (byte) 0x0f); table4x5.put((byte) 0x8, (byte) 0x12); table4x5.put((byte) 0x9, (byte) 0x13); table4x5.put((byte) 0xa, (byte) 0x16); table4x5.put((byte) 0xb, (byte) 0x17); table4x5.put((byte) 0xc, (byte) 0x1a); table4x5.put((byte) 0xd, (byte) 0x1b); table4x5.put((byte) 0xe, (byte) 0x1c); table4x5.put((byte) 0xf, (byte) 0x1d); table5x4 = invert(table4x5); } private static Map&lt;Byte, Byte&gt; invert(Map&lt;Byte, Byte&gt; map) { Map&lt;Byte, Byte&gt; inv = new HashMap&lt;Byte, Byte&gt;(); for (Entry&lt;Byte, Byte&gt; entry : map.entrySet()) inv.put(entry.getValue(), entry.getKey()); return inv; } public boolean connect() { this.cliente = new Socket(); System.out.println("-- Trying to connect: " + HOST + ":" + PORT); InetSocketAddress socketAddress = new InetSocketAddress(HOST, PORT); try { this.cliente.connect(socketAddress); } catch (IOException e) { System.out.println(e); System.out.println("-- CONNECTION PROBLEM "); return false; } System.out.println("-- Connection successful"); return true; } private void receive() { InputStream stream = null; System.out.println("-- Reading data..."); try { stream = this.cliente.getInputStream(); try { int count = stream.read(); System.out.println((char) count); } catch (IOException e) { System.out.println("-- DATA READING PROBLEM"); e.printStackTrace(); } } catch (IOException e) { System.out.println("-- DATA READING PROBLEM"); e.printStackTrace(); } System.out.println("-- Data read successful"); } private void send() { // TODO: função que envia sinal } public static void main(String[] args) throws UnknownHostException, IOException { ProtocoloX protocolo = new ProtocoloX(); if (protocolo.connect()) { protocolo.receive(); } } } </code></pre>
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    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USPaulo Ricardo Xavier Giusti
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. POConnection resets while trying to read from Socket
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWhat's the output? Also, perhaps the server expects some data to be sent before you can read data from it?
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      1. POConnection resets while trying to read from Socket
      1. USPiovezan
    2. COAfter a long time processing, it throws an exception, something like "Connection reset".
      singulars
      1. POConnection resets while trying to read from Socket
      1. USPaulo Ricardo Xavier Giusti
    3. COHmm. I'm not sure, but it might be a read timeout after nothing is read. Anyway, post the complete log as requested.
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      1. POConnection resets while trying to read from Socket
      1. USPiovezan
 

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