WebSockets for GWT
Пытаюсь реализовать простой пример соединения.
Может кто глазами ошибку увидит?
Client
| Код |
package ru.test.client;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.TextArea;
import com.google.gwt.user.client.ui.VerticalPanel;
import de.csenk.gwt.ws.client.WebSocketConnection;
import de.csenk.gwt.ws.client.js.JavaScriptWebSocket;
import de.csenk.gwt.ws.client.js.JavaScriptWebSocketFactory;
import de.csenk.gwt.ws.shared.Connection;
import de.csenk.gwt.ws.shared.Handler;
public class webSocketEntryPoint implements EntryPoint {
public webSocketEntryPoint() {
}
@Override
public void onModuleLoad() {
final TextArea ta = new TextArea();
ta.setCharacterWidth(100);
ta.setVisibleLines(50);
ta.setText("Test WebSocket connection");
if (!JavaScriptWebSocket.IsSupported())
return;
//webSocketURL looks like "ws://127.0.0.1:8888/de_csenk_gwtws_demo/webSocket"
String webSocketURL = GWT.getModuleBaseURL().replace("http", "ws") + "webSocket";
ta.setText(ta.getText() + "\ngetModuleBaseURL - " + webSocketURL);
webSocketURL = "ws://127.0.0.1:8080/WebSocketTest2/ru_test_server/webSocket";
ta.setText(ta.getText() + "\nMyURL - " + webSocketURL);
Handler handler = new Handler() {
@Override
public void onConnectionClosed(Connection connection)
throws Exception {
ta.setText(ta.getText() + "\n" + "Client connection close");
}
@Override
public void onConnectionOpened(Connection connection)
throws Exception {
String msg = "Hello world";
ta.setText(ta.getText() + "\n" + msg);
connection.send(msg);
}
@Override
public void onExceptionCaught(Connection connection,
Throwable caught) {
ta.setText(ta.getText() + "\nClient Caught: " + caught.getMessage());
}
@Override
public void onMessageReceived(Connection connection, Object message)
throws Exception {
ta.setText(ta.getText() + "\n" + message);
}
};
// JavaScriptWebSocketConnection webSocketConnection =
// new JavaScriptWebSocketConnection(webSocketURL, handler);
Connection webSocketClient = new WebSocketConnection(webSocketURL, handler,
new JavaScriptWebSocketFactory());
VerticalPanel panel = new VerticalPanel();
panel.add(ta);
RootPanel.get().add(panel);
}
}
|
Server
| Код |
package ru.test.server;
import de.csenk.gwt.ws.server.jetty.JettyWebSocketConnection;
import de.csenk.gwt.ws.shared.Connection;
import de.csenk.gwt.ws.shared.Handler;
import javax.servlet.http.HttpServletRequest;
import org.eclipse.jetty.websocket.WebSocket;
import org.eclipse.jetty.websocket.WebSocketServlet;
public class WebSocketServletImpl extends WebSocketServlet {
private static final long serialVersionUID = 5565068884455990101L;
@Override
protected WebSocket doWebSocketConnect(HttpServletRequest arg0, String arg1) {
return new JettyWebSocketConnection(new Handler() {
@Override
public void onConnectionClosed(Connection connection)
throws Exception {
System.out.println("Server connection close");
}
@Override
public void onConnectionOpened(Connection connection)
throws Exception {
System.out.println("Server connection open");
}
@Override
public void onExceptionCaught(Connection connection,
Throwable caught) {
System.out.println("Server Caught: " + caught.getMessage());
}
@Override
public void onMessageReceived(Connection connection, Object message)
throws Exception {
System.out.println("Server received:" + message);
}
});
}
}
|
webSocket.gwt.xml
| Код |
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 1.7.0//EN" "http://google-web-toolkit.googlecode.com/svn/tags/1.7.0/distro-source/core/src/gwt-module.dtd">
<module>
<inherits name="com.google.gwt.user.User"/>
<inherits name='de.csenk.gwt.ws.WebSocket' />
<entry-point class="ru.test.client.webSocketEntryPoint"/>
</module>
|
web.xml
| Код |
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<servlet>
<servlet-name>webSocket</servlet-name>
<servlet-class>ru.test.server.WebSocketServletImpl</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>webSocket</servlet-name>
<url-pattern>/ru_test_server/webSocket</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>welcomeGWT.html</welcome-file>
</welcome-file-list>
</web-app>
|
Использую:
GWT2.6.0
TomCat 7.0.53.0
de.csenk.gwt.jetty-7.1.6.v20100715.jar - просят добавить в проект на https://code.google.com/p/gwt-ws/
de.csenk.gwt.ws_v0.0.1.67.jar - просят добавить в проект на https://code.google.com/p/gwt-ws/
В итоге получаю сообщение об ошибке не стороне клиента:
| Код |
Test WebSocket connection
MyURL - ws://127.0.0.1:8080/WebSocketTest2/ru_test_server/webSocket
Client Caught: JavaScript implementation of WebSocket thrown an unknown exception.
Client connection close
|
Добавлено через 1 минуту и 57 секунд
Прикрепил сам проект в архиве. NetBeans. |