I have a Java EE Endpoint set up on a Payara server to which I attempt to connect an Android client using Autobahn WebSockets. I have the following setup:
My WebSocket Endpoint on the server:
public class CommunicationSocket extends Endpoint {
@Override
public void onOpen(Session aSession, EndpointConfig aConfig) {
aSession.addMessageHandler(new MessageHandler.Whole<byte[]>() {
@Override
public void onMessage(byte[] aMessage) {
// Do something fun
}
});
}
}
I register the WebSocket as such:
public class RegisterSocket implements ServerApplicationConfig {
@Override
public Set<ServerEndpointConfig> getEndpointConfigs(
Set<Class<? extends Endpoint>> aEndpointClasses) {
Set<ServerEndpointConfig> result = new HashSet<>();
for (Class endpointClass : aEndpointClasses) {
if (endpointClass.equals(CommunicationSocket.class)) {
ServerEndpointConfig sec
= ServerEndpointConfig.Builder.create(endpointClass,
"/WebSocket").build();
result.add(sec);
}
}
return result;
}
@Override
public Set<Class<?>> getAnnotatedEndpointClasses(
Set<Class<?>> aScanned) {
return Collections.emptySet();
}
}
The WebSocket can now be reached att ws://localhost:46588/Server/WebSocket. I've confirmed that it works with the following javascript in chrome:
function WebSocketTest() {
if ("WebSocket" in window) {
ws = new WebSocket("ws://localhost:46588/Server/WebSocket");
ws.onopen = function() {
ws.send("Message to send");
alert("Message is sent...");
};
ws.onmessage = function (evt) {
var received_msg = evt.data;
alert("Message is received... \n" + received_msg);
};
} else {
// The browser doesn't support WebSocket
alert("WebSocket NOT supported by your Browser!");
}
}
However when I try to connect with my android client using autobahn, the socket closes without being able to establish a connection with the message "Connection refused". I use the following code in onCreate to connect (mSocket is a field of the activity class):
WebSocketHandler messageHandler = new WebSocketHandler() {
@Override
public void onOpen() {
System.out.println("Connected...");
}
@Override
public void onClose(int code, String reason) {
System.out.println("Socket closing: " + reason);
mSocket = null;
}
@Override
public void onTextMessage(String payload) {
System.out.println("Received: " + payload);
}
@Override
public void onBinaryMessage(byte[] payload) {
System.out.println("Message received: " + payload);
}
};
mSocket = new WebSocketConnection();
try {
String address = "ws://localhost:46588/Server/WebSocket";
mSocket.connect(address, messageHandler);
} catch (WebSocketException e) {
System.out.println("Could not connect to WebSocket: "
+ e.getMessage());
mSocket = null;
}
I have internet permissions i my manifest as so:
<uses-permission android:name="android.permission.INTERNET">
</uses-permission>
Is there anything in my code or approach that is wrong? Is it possible to log/catch the event of connecting (handshake or what not) in order to shed light onto why the connection is refused?
