简易WSGI实现

最新推荐文章于 2021-08-15 01:10:42 发布

翻译最新推荐文章于 2021-08-15 01:10:42 发布 · 352 阅读

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本文介绍了如何使用Python内置的WSGI服务器以及gevent库来实现高性能的Web应用。首先，通过一个简单的示例展示了WSGI服务器的基本用法，接着结合Flask框架和gevent的WSGIServer，演示了如何创建并运行一个支持异步IO的Web应用程序。

1.使用python内置WSGI server

# WSGI server in Python
from wsgiref.simple_server import make_server
def application (environ, start_response):
    status = '200 OK'
    response_headers = [
        ('Content-Type', 'text/plain')]
    start_response(status, response_headers)
    return ["welcome to gevent lesson"]
# Instantiate the WSGI server.
# It will receive the request, pass it to the application
# and send the application's response to the client
httpd = make_server(
    'localhost', # The host name.
    8080, # A port number where to wait for the request.
    application # Our application object name, in this case a function.
    )

2.Flask内置WSGI测试和gevent wsgi结合Flask app

from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
    return 'Hello World!'
if __name__ == '__main__':
    app.run()

from flask import  Flask
import gevent.pywsgi
import gevent
app = Flask(__name__)
@app.route('/')
def handle():
    return 'welcome to gevent lesson!'
gevent_server = gevent.pywsgi.WSGIServer(('', 5000), app)
gevent_server.serve_forever()