public static void add(final String key, final WebSocketSession session) {
        log.info("add session: {}", key);
        SESSION_POOL.put(key, session);
    }
add session.
@param key key
@param session session
shenyu-examples/shenyu-examples-websocket/shenyu-example-spring-native-websocket/src/main/java/org/apache/shenyu/examples/websocket/config/WsSessionManager.java