龙卷风requestHandler：如何在获得参数之前解码URL编码查询
我正在使用Python Tornado框架来构建API和请求Handler来处理我通过get（）方法获得的查询。
我的处理程序
handlers = [
(r"?", MainHandler)
]
class MainHandler(RequestHandler):
def get(self):
args = {
"text": RequestHandler.get_argument(self, "text", default=""),
"lang": RequestHandler.get_argument(self, "lang", default=""),
}
# Process the query
......
问题是，当查询被编码时，例如“文本％3DHi％26lang％3DEN”，请求Handler不会解码查询并识别其两个参数。相反，它将“文本”参数值标识为“ hi＆amp; lang = en'。
那么，如果编码URL，我该如何阅读论点呢？显然requesthandler.get_arguments（）似乎在解析URL参数之前似乎没有解码它们
I'm using the python Tornado framework to build an API and RequestHandler to handle the queries I get through the get() method.
My handler
handlers = [
(r"?", MainHandler)
]
class MainHandler(RequestHandler):
def get(self):
args = {
"text": RequestHandler.get_argument(self, "text", default=""),
"lang": RequestHandler.get_argument(self, "lang", default=""),
}
# Process the query
......
The issue is when the query is URL encoded like 'text%3DHi%26lang%3Den', the RequestHandler doesn't decode the query and identify its two parameters. Instead, it identifies the 'text' parameter value as 'Hi&lang=en'.
So, how do I read the arguments if they are URL encoded? Apparently RequestHandler.get_arguments() doesn't seem to be decoding them before parsing URL parameters
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由于
＆amp;字符也按照HTTP规格进行编码，因此将其视为值的一部分，而不是定界符。实际上，整个字符串 -
text％3DHi％26lang％3DEN应该被视为一个值，因为分界符（=和＆amp;）也已编码。基本上，当您发送请求时，您只需要编码参数值，而不是整个查询。
Because the
&character is also encoded, as per HTTP spec, it is treated as part of a the value, not as a delimiter.In fact, this whole string -
text%3DHi%26lang%3Denshould be considered a single value because the delimiters (=and&) are also encoded.Basically, when you're sending the request you only have to encode the argument values, not the whole querystring.