活检的默认handler不需要参数

src/main/java/cn/com/qmth/examcloud/ws/handler/FaceBiopsyHandler.java

@@ -16,7 +16,7 @@ import java.util.Map;
 public class FaceBiopsyHandler {
 
     @MessageHandler
-    public Map<String, Object> message(User user, @Message String msg) {
+    public Map<String, Object> message(User user) {
         return null;
     }