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Python 的 Flask 其实有点类似于 Ruby 的 Sinatra 。我另外一篇博客也写了用 Sinatra 搭建服务和使用请求服务示例：。都是用的最简单的例子，并不复杂。 

服务端：

# server.pyfrom flask import Flask, requestapp = Flask(__name__) @app.route('/get-test', methods=['GET'])def testget():    if request.method == 'GET':       return "get request success" @app.route('/post-test', methods=['POST'])def testpost():    if request.method == 'POST':        temp = request.json.get('data')        print(temp)        return "post request success" if __name__ == '__main__':    app.run(host="localhost", port=9979, threaded=True)

客户端： 

# client.pyimport requests if __name__ == '__main__':    # get 请求    url = "http://localhost:9979/get-test"    r = requests.get(url)    print(r.text)    # post 请求    url = "http://localhost:9979/post-test"    data = { "aaa": 1, "bbb": 2, }    r = requests.post(url, json={"data": data})    print(r.text)

服务端运行输出： 

[root@master python3_learning]# python3 server.py  * Serving Flask app "server" (lazy loading) * Environment: production   WARNING: This is a development server. Do not use it in a production deployment.   Use a production WSGI server instead. * Debug mode: off * Running on http://localhost:9979/ (Press CTRL+C to quit)127.0.0.1 - - [02/Dec/2020 22:38:01] "GET /get-test HTTP/1.1" 200 -{'aaa': 1, 'bbb': 2}127.0.0.1 - - [02/Dec/2020 22:38:01] "POST /post-test HTTP/1.1" 200 -

客户端运行输出： 

[root@master python3_learning]# python3 client.py get request successpost request success

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