为什么@ app.route（'/ <data> '）？ 不工作吗？
[英]Why is @app.route('/<data>') ? not working?
问题描述
I am trying to pass the data to a python flask server on the index/root url. 
我正在尝试将数据传递到索引/根url上的python flask服务器。 Is there a way to do it or what am I doing wrong? 有没有办法做到这一点，或者我做错了什么？
The following is my code: 以下是我的代码：
import json from flask import Flask app = Flask(__name__) @app.route('/<data>', methods=['POST']) def index(data): #test = request.args.get('test') return data
When I run the command, it fails 当我运行命令时，它失败
curl -d "data=123" http://localhost:9000/
The result from the python server python服务器的结果
"POST / HTTP/1.1" 404 -
The response from the curl command curl命令的响应
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <title>404 Not Found</title> <h1>Not Found</h1> <p>The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.</p>
RESOLVED WITH 解决
@app.route('/', methods=['POST']) def index(): return request.form.get('data')
With request 有要求
curl -d 'data=test' http://localhost:9000/
Output was test 输出已测试
3 个解决方案
解决方案1
0 已采纳 2018-02-22 17:09:32
Your route defintion expects a request to /<somedata> . 您的路线定义期望对/<somedata>的请求。 If you omit <somedata> , it won't parse. 如果省略<somedata> ，则不会解析。
To POST json to / , do this: 为了POST JSON来/ ，这样做：
from flask import Flask, request, jsonify
app = Flask(__name__)
@app.route('/', methods=['POST'])
def index():
data = request.get_json(force=True)
return jsonify({'res':data})
if __name__ == '__main__':
app.run(debug=True)
You can test that by doing this: 您可以通过执行以下操作进行测试：
$ curl -d '{"foo":"bar"}' localhost:5000/
To POST form-data to / , as you did in your example, do 为了POST表单数据/ ，因为你在你的例子一样，做
data = request.form['foo']
return data
instead. 代替。 Test with 测试
$ curl -d 'foo=bar' localhost:5000/
To just pass a string to your route via urlquery, you can do: 要仅通过urlquery将字符串传递到路由，可以执行以下操作：
@app.route('/<string:data>', methods=['POST'])
def index(data):
return data
And test that with 并用
$ curl -X POST localhost:5000/somestring
解决方案2
-1 2018-02-22 16:32:25
You probably want to do: 您可能想做：
@app.route('/<data>', methods=['POST'])
def index(data):
return json.dumps(data)
Although I am using blueprint.route to be honest, not app.route. 虽然我说的是blueprint.route，但不是app.route。
解决方案3
-1 2018-02-22 16:39:05
For me, this works fine. 对我来说，这很好。
@api.route('/api/v3/ticket/<string:key>/<int:id>'
its <type:var> combination, I believe. 我相信它的<type:var>组合。
@app.route('/<data>', methods=['POST'])
def index(data):
#test = request.args.get('test')
print data
Editing with more explanation. 编辑带有更多说明。 When I ran your problem. 当我跑你的问题。 like this 像这样
127.0.0.1 - - [22/Feb/2018 22:17:29] "POST /haha HTTP/1.1" 200 -
* Running on http://127.0.0.1:7000/ (Press CTRL+C to quit)
* Restarting with stat
* Debugger is active!
* Debugger PIN: 179-733-809
haha
127.0.0.1 - - [22/Feb/2018 22:16:50] "POST /haha HTTP/1.1" 500 -
Traceback (most recent call last):
File "/home/sworks/flask_application_new/flask-env/lib/python2.7/site-packages/flask/app.py", line 1997, in __call__
return self.wsgi_app(environ, start_response)
File "/home/sworks/flask_application_new/flask-env/lib/python2.7/site-packages/flask/app.py", line 1985, in wsgi_app
response = self.handle_exception(e)
File "/home/sworks/flask_application_new/flask-env/lib/python2.7/site-packages/flask_restplus/api.py", line 557, in error_router
return original_handler(e)
File "/home/sworks/flask_application_new/flask-env/lib/python2.7/site-packages/flask/app.py", line 1540, in handle_exception
reraise(exc_type, exc_value, tb)
File "/home/sworks/flask_application_new/flask-env/lib/python2.7/site-packages/flask/app.py", line 1982, in wsgi_app
response = self.full_dispatch_request()
File "/home/sworks/flask_application_new/flask-env/lib/python2.7/site-packages/flask/app.py", line 1615, in full_dispatch_request
return self.finalize_request(rv)
File "/home/sworks/flask_application_new/flask-env/lib/python2.7/site-packages/flask/app.py", line 1630, in finalize_request
response = self.make_response(rv)
File "/home/sworks/flask_application_new/flask-env/lib/python2.7/site-packages/flask/app.py", line 1725, in make_response
raise ValueError('View function did not return a response')
ValueError: View function did not return a response
Then when you return data like this , 然后，当您返回这样的数据时，
@app.route('/<data>', methods=['POST'])
def index(data):
#test = request.args.get('test')
return data
* Detected change in '/home/sworks/vms_temp/vms_enhancement/vms_api/smartworks/controllers_v1.py', reloading
* Restarting with stat
* Debugger is active!
* Debugger PIN: 179-733-809
127.0.0.1 - - [22/Feb/2018 22:17:29] "POST /haha HTTP/1.1" 200 -
I guess, try a return at the end and it will work for you. 我想，最后尝试退货，这样对您有用。
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