尝试在 while 循环内发送
Socket socket = IO.socket("http://18.223.196.164:9000");
socket.on(Socket.EVENT_CONNECT, new Emitter.Listener() {
    @Override
    public void call(Object... objects) {
        int i = 0;
        while (camera.read(mat)) {
            byte[] data = new byte[(int) (mat.total() * mat.channels())];
            mat.get(0, 0, data);
            obj.addProperty("data", Base64.getEncoder().encodeToString(data));
            socket.emit("liveFeed", obj);
            logger.info("Inside loop" + (++i) + " ");
        }
    }
});
socket.connect();
通过 while 循环连续发送帧，但显然服务器只收到一个（第一个）帧。