flask服务器仅打印从发出POST请求的客户端接收到的数据。它还会检查 Authorization 标头的状态。
from flask import Flask, request
app = Flask(__name__)
@app.route('/random', methods=['POST'])
def random():
if request.method == 'POST':
if request.headers.get('Authorization') and request.headers.get('Content-Type') == 'application/json':
print(request.get_json())
print(request.data)
return "Success"
else:
print(request.get_json())
print(request.data)
return "Bad request"
app.run(host='0.0.0.0', port=5000, debug=True)
现在,当我从 Postman 测试API时,它可以完美运行。但是,我们将对其进行稍微不同的测试。在您的标头中取消选中和 Authorization 和 Content-Type 标头,然后在正文中发送此json-
{"spam": 1, "eggs": 2, "bacon": 0}
终端上的输出是-
None
b'{"spam": 1, "eggs": 2, "bacon": 0}'
127.0.0.1 - - [30/Nov/2018 12:25:33] "?[37mPOST /random HTTP/1.1?[0m" 200 -
现在,我们将通过urllib
执行相同的操作。以下是该代码-
import json
import urllib.request
import urllib.parse
d = {"spam": 1, "eggs": 2, "bacon": 0}
data = json.dumps(d)
data = data.encode()
req = urllib.request.Request("http://localhost:5000/random", data)
req.add_header('Content-Type', 'application/json')
req.add_header('Authorization', 12345)
with urllib.request.urlopen(req) as f:
print(f.read().decode('utf-8'))
哪个效果很好。但是,为了重新创建我们对Postman所做的操作,我们将对req.add_header
行进行注释,如下所示-
#req.add_header('Content-Type', 'application/json')
#req.add_header('Authorization', 12345)
然后,当我们执行脚本时,我们会从中获得输出-
None
b''
127.0.0.1 - - [30/Nov/2018 12:27:18] "?[37mPOST /random HTTP/1.1?[0m" 200 -
我需要知道两者中哪一个是正确的预期行为,为什么这两个是不同的?