关于报错:This is a development server. Do not use it in a production deployment.Use a production

WARNING: This is a development server. Do not use it in a production deployment.
Use a production WSGI server instead
原写法

if __name__ =='__main__':app.run(host='0.0.0.0',port=5000)

后来觉得这句Use a production WSGI server instead是关键。所以有以下两种解决方法，首推法1.

关于python中WSGI服务器的两种实现
1.用gevent包里的pywsgi
优点：速度快，第三方开发维护

if __name__ == '__main__':from gevent import pywsgiserver = pywsgi.WSGIServer(('0.0.0.0',5000),app)server.serve_forever()

2、用python内置的WSGI服务器
速度反应慢，而且在我的实验环境下能启动运行，但是发送GET和POST请求是返回404和500。无法使用。

if __name__ =='__main__':from wsgiref.simple_server import make_serverserver = make_server('127.0.0.1',5000,app)server.serve_forever()app.run()

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