session - Flask Redis 服务器 session : Error in save_session

Question

亲们: 我正在将我的 Flask 应用程序与用于 session 存储的 redis 移动到 docker 容器中。当 redis 在本地运行时，我的应用程序运行愉快。但是，当使用 redis 图像运行 docker-compose 时，我看到以下错误。无论我的 redis 容器正在运行还是停止，我都会收到相同的错误消息:

2017-04-02 03:36:09,861] ERROR in app: Exception on / [GET]
web_1    | Traceback (most recent call last):
web_1    |   File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1988, in wsgi_app
web_1    |     response = self.full_dispatch_request()
web_1    |   File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1643, in full_dispatch_request
web_1    |     response = self.process_response(response)
web_1    |   File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1864, in process_response
web_1    |     self.save_session(ctx.session, response)
web_1    |   File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 926, in save_session
web_1    |     return self.session_interface.save_session(self, session, response)
web_1    |   File "/usr/local/lib/python2.7/site-packages/flask_session/sessions.py", line 165, in save_session
web_1    |     self.redis.setex(name=self.key_prefix + session.sid, value=val,
web_1    | AttributeError: 'str' object has no attribute 'setex'

我已将以下配置属性添加到我的应用程序以进行 session 配置:

SESSION_TYPE = "redis"
SESSION_REDIS = "redis:6379"

我不认为这是一个 docker-compose 问题，因为我的应用程序能够成功连接到 MySQL 实例，不过，这是我的 docker-compose.yml 文件以防它指向某些东西:

version: "3"
services:
  mysql:
    build:
      context: db/
  web:
    build:
      context: web/
    ports:
    - "10080:80"
    depends_on:
    - "mysql"
    - "redis"
  redis:
    image: "redis:alpine"

Answer 1

想通了。问题出在 session 配置中。我不得不改变

SESSION_REDIS = "redis:6379"

到

SESSION_REDIS = redis.Redis("redis")