In the server end, I use Spring-websocket, Handshake as follow:
public class WebsocketEndPoint extends TextWebSocketHandler {
@Override
protected void handleTextMessage(WebSocketSession session,
TextMessage message) throws Exception {
System.out.println("start to translate data!");
super.handleTextMessage(session, message);
for (int i = 0; i <= 1000; i++) {
session.sendMessage(new TextMessage("push message " + i));
Thread.sleep(2000);
}
session.sendMessage(message);
}
@Override
public void afterConnectionEstablished(WebSocketSession session) throws Exception {
System.out.println("Connection Established!");
}
@Override
public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
System.out.println("Connection Closed！");
}
}
springmvc.xml as follow:
<mvc:default-servlet-handler/>
<bean id="websocket" class="com.yyp.mvc.controller.WebsocketEndPoint" />
<websocket:handlers>
<websocket:mapping path="/websocket" handler="websocket" />
<websocket:handshake-interceptors>
<bean class="com.yyp.mvc.controller.HandshakeInterceptor" />
</websocket:handshake-interceptors>
</websocket:handlers>
In the client, my html as follow:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
</head>
<body>
<button onclick="closeSocket()">stop socket</button>
<script>
var wsServer = 'ws://localhost:8080/websocket';
var websocket = new WebSocket(wsServer);
websocket.onopen = function (evt) { onOpen(evt) };
websocket.onclose = function (evt) { onClose(evt) };
websocket.onmessage = function (evt) { onMessage(evt) };
websocket.onerror = function (evt) { onError(evt) };
function onOpen(evt) {
console.log("Connected to WebSocket server.");
websocket.send('hello');
}
function onClose(evt) {
console.log("Disconnected");
}
function onMessage(evt) {
console.log('Retrieved data from server: ' + evt.data);
}
function onError(evt) {
console.log('Error occured: ' + evt.data);
}
function closeSocket (argument) {
console.log("close socket");
websocket.close();
websocket=null;
}
</script>
</body>
</html>
Finally, I could get log like this in the server:
before shakeHands
after shakeHands
Connection Established!
start to translate data!
Why couldn't get the "Connection Closed!" log after I click the "stop socket" button or how can I process the connection close information form the client?
