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POJava - Socket Programming / Blocked ports
 

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  1. POJava - Socket Programming / Blocked ports
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    <p>I'm trying to do a simple example of a client that connects to any website using 8080 port and print the first input from server. But I can't even connect to the server. Trcking the TCP's headers with Wireshark, I realized that the servers aren't answering. I've already turn off my Firewall, Antivirus and set the forwardings ports in my router, but I still can't connect to the server. </p> <p>Here is 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; 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 = "stackoverflow.com"; private final int PORT = 8080; 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, 10000000); } 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(this.bytes); System.out.println("count:"+count); System.out.println("bytes:"+this.bytes); } 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"); } public static void main(String[] args) throws UnknownHostException, IOException { ProtocoloX protocolo = new ProtocoloX(); if(protocolo.connect()){ protocolo.receive(); } } } </code></pre> <p>What could be causing the problem? Thanks :D</p>
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    1. USPaulo Ricardo Xavier Giusti
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      1. POJava - Socket Programming / Blocked ports
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      1. VTUpMod
    1. CO`stackoverflow.com` is not listening on port 8080
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      1. USDevon_C_Miller
    2. COthe HTTP port is port 80. 8080 is the alternative HTTP port
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      1. USDampsquid
    3. COOk, now it's working to stackoverflow.com, but when I try any other website it throws me a read timeout exception. What could it be?
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      1. POJava - Socket Programming / Blocked ports
      1. USPaulo Ricardo Xavier Giusti
 

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