Hi,
i want to develop an websocket application. I already developed an websocket
client using weberknecht-websockets and tested it with an server
implementation using jetty webserver and it works great!
Now i want to try out glassfish. I read that glassfish 3.1.1 supports
websockets. So i googled a lot and found a few tutorials which describes how
to implement the server side for websockets for glassfish.
My Server Side Implementation looks like:
*WebSocketServlet:*
[java]
package de.gfwebsocket;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.sun.grizzly.websockets.WebSocketEngine;
/**
* Servlet implementation class WebSocketServlet
*/
public class WebSocketServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public WebSocketServlet() {
super();
// TODO Auto-generated constructor stub
}
public void init(ServletConfig config) throws ServletException {
// TODO Auto-generated method stub
WebSocketEngine.getEngine().register(new
WebSocketConnection());
}
protected void doGet(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
SimpleDateFormat format = new SimpleDateFormat("dd.MM.yyyy
HH:mm:ss");
PrintWriter writer = response.getWriter();
writer.println("<html>");
writer.println("<head><title>Hello World
Servlet</title></head>");
writer.println("<body>");
writer.println("<h1>Es ist der " + format.format(new Date()) +
" Uhr</h1>");
writer.println("<body>");
writer.println("</html>");
writer.flush();
writer.close();
}
protected void doPost(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
// TODO Auto-generated method stub
}
}
[/java]
*WebSocketConnection*
[java]package de.gfwebsocket;
import com.sun.grizzly.tcp.Request;
import com.sun.grizzly.websockets.WebSocket;
import com.sun.grizzly.websockets.WebSocketApplication;
import com.sun.grizzly.websockets.WebSocketListener;
public class WebSocketConnection extends WebSocketApplication{
@Override
public WebSocket createSocket(WebSocketListener... listeners) {
// TODO Auto-generated method stub
return new WebSocketDataProcess(listeners);
}
@Override
public void onClose(WebSocket socket) {
// TODO Auto-generated method stub
super.onClose(socket);
}
@Override
public void onConnect(WebSocket socket) {
// TODO Auto-generated method stub
super.onConnect(socket);
}
@Override
public void onMessage(WebSocket socket, String text) {
socket.send(text);
//super.onMessage(socket, text);
}
// return true if you want to communicate over websocket otherwise
return false
@Override
public boolean isApplicationRequest(Request arg0) {
// TODO Auto-generated method stub
return true;
}
}[/java]
*WebSocketDataProcess*
[java]
package de.gfwebsocket;
import com.sun.grizzly.websockets.BaseServerWebSocket;
import com.sun.grizzly.websockets.WebSocketListener;
public class WebSocketDataProcess extends BaseServerWebSocket{
public WebSocketDataProcess(WebSocketListener... listeners) {
// TODO Auto-generated constructor stub
super(listeners);
}
}[/java]
I exported this project as an .war-File and deployed it in GlassFish via web
console. I tried to reach it by using firefox and it showed me the actual
time as expected.
But if i try my client to connect with the websocket server, it failed. I get
an exception on client side: "connection failed: unknown status code 200".
My Client works with WebSocket. As i said, i tested it with a jetty websocket
server implementation.
So i tried to enable websockets in glassfish 3.1.1. I started the server with
"./asadmin start-server" and then i tried "./asadmin set
configs.config.server-config.network-config.protocols.protocol.http-listener-1.http.websockets-support-enabled=true".
But "set" failed and it does not work.
So, can anybody help me?
Thank you for your help in advance.
Best regards
hsch
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