Symfony：避免在每次请求时避免会话

Question

我有一个基于symfony 2.8的应用程序，每个新会话的每个页面请求都会创建。

例如 如果/ api / check被调用了1000次，则将不必要地创建1000个会话。

防火墙：         ＃禁用资产和事件探查器的身份验证，根据需要进行调整         开发人员：             模式：^ /（_（profiler | wdt）| css | images | js）/             安全性：错误

    api:
        pattern:  /api/
        anonymous: ~
        stateless:  true

    main:
        pattern: ^/
        form_login:
            # the user is redirected here when needed to log in
            login_path: security_login_register # URL: /willkommen

            # login handler via FOSUserBundle
            provider: fos_userbundle

            # name of input field of csrf token
            csrf_parameter: _csrf_token

            # token provider
            csrf_provider: security.csrf.token_manager # Use form.csrf_provider instead for Symfony <2.4
            # DIRECTION OPTIONS:
            # /vendor/symfony/symfony/src/Symfony/Component/Security/Http/Authentication/DefaultAuthenticationSuccessHandler.php

            # OPTION 1: if set true, redirect always to default_target_path after login
            # DEFAULT: false
            always_use_default_target_path: false  # DEFAULT: false
            default_target_path: profile_order_list # URL: /profile/orders

            # OPTION 2: if option 1 not enabled, the URL of _target_path will be used for redirection
            # name of input field for redirection for form_login
            target_path_parameter: _target_path

            # OPTIONS 3: if option 1, 2 not enabled and user_refer is true, URL from $request->headers->get('Referer')
            # will be used for redirection
            # disabled using header referrer
            use_referer: false # DEFAULT: false

            # OPTION 4: if nothing found, URL of default_target_path will be used for redirection

            # do not remeber_me with higher security
            remember_me: false

        logout:
            path: fos_user_security_logout
            target: homepage  # URL: /
        anonymous:    true
        switch_user:  true

以上代码块在安全配置中不起作用。我试图使/ api路由变为无状态，但不起作用，知道吗？