....

src/main/java/cn/com/qmth/examcloud/ws/starter/core/WebSocketServerEndpoint.java

@@ -62,7 +62,7 @@ public class WebSocketServerEndpoint {
 
 	@OnOpen
 	public void onOpen(Session session, @PathParam("path") String path) {
-		long amount = counter.getAndIncrement();
+		long amount = counter.incrementAndGet();
 
 		this.sessionId = UUID.randomUUID().toString().replace("-", "");
 
@@ -140,7 +140,7 @@ public class WebSocketServerEndpoint {
 	@OnClose
 	public void onClose(Session session, @PathParam("path") String path) {
 
-		long amount = counter.getAndDecrement();
+		long amount = counter.decrementAndGet();
 
 		SessionInfo sessionInfo = WebSocketHelper.getSessionInfo(session);
 		if (null != sessionInfo) {