在api的顶部。php页面位于class JSON_API 行添加以下代码：

add_action( \'wpmu_new_blog\', \'wpse_set_defaults\' );

function wpse_set_defaults( $blog_id ) {
    global $json_api;

    switch_to_blog( $blog_id );

    // set the default controllers here
    $required_controllers = explode(",", "categories,posts,user,attachments");

    $id = \'json_api_controllers\';

    $available_controllers = $json_api->get_controllers();
    $active_controllers = explode(\',\', get_option($id, \'core\'));
    $action = "activate";

    foreach ($required_controllers as $controller) {
        if (in_array($controller, $available_controllers)) {
            if ($action == \'activate\' && !in_array($controller, $active_controllers)) {
                $active_controllers[] = $controller;
            } else if ($action == \'deactivate\') {
                $index = array_search($controller, $active_controllers);
                if ($index !== false) {
                    unset($active_controllers[$index]);
                }
            }
        }
    }

    $value = implode(\',\', $active_controllers);

    // get option and set it
    $option_exists = (get_option($id, null) !== null);

    if ($option_exists) {
        update_option($id, $value);
    } else {
        add_option($id, $value);
    }

    restore_current_blog();
}