flask接受jquery ajax传递过来的参数

I have been working with similar functionality and after a bit of messing around with the ajax and python, this is what I came up with for python reading the ajax dataJavaScript:

var data = {
data: JSON.stringify({
"value":'asdf'
})
}
};

$.ajax({
url:"/",
type: 'POST',
data: data,
success: function(msg){
alert(msg);
}
})

Python:

from flask import json
@app.route("/", methods=['POST'])
def get_data():
data = json.loads(request.form.get('data'))
ss = data['value']
return str(ss)

注意：

javascript
不能如下写法，不知为什么：

$.ajax({
url:"/",
type: 'POST',
data: {"value":"val1"},
success: function(msg){
alert(msg);
}
})

在java和nodejs中可以这么写，但flask不能！