Flask服务本机之外不能访问

Flask 开启服务后，默认是本机访问的，使用localhost:5000可以访问Web服务，但是使用如192.168.1.10这类本机IP地址却访问不了。

启动Falsk服务后信息如下，

* Serving Flask app "app" (lazy loading)
* Environment: production
  WARNING: Do not use the development server in a production environment.
  Use a production WSGI server instead.
* Debug mode: on
* Restarting with stat
* Debugger is active!
* Debugger PIN: 228-080-042
* Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

除本机外是不能访问的，需要在run参数中设置,端口自定，主机为0.0.0.0

app.run(host='0.0.0.0', port=5000)

再次启动后就可以了。

* Serving Flask app "app" (lazy loading)
* Environment: production
  WARNING: Do not use the development server in a production environment.
  Use a production WSGI server instead.
* Debug mode: on
* Restarting with stat
* Debugger is active!
* Debugger PIN: 228-080-042
* Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)