之前折腾过Flask-restful中，利用：
reqparse.RequestParser()
和add_argument
然后去实现参数解析。
现在（通过websocket）得到一个json字符串，比如：
{
"longitude" : 31.2639030000,
"latitude" : 120.7297170000,
"shortStr" : "星湖街134号",
"fullStr" : "江苏省苏州市吴中区星湖街134号"
}
想要看看能否借用RequestParser去解析出对应的参数
flask parse parameter from json
python flask how to get parameters from a JSON GET request Stack Overflow
http://stackoverflow.com/questions/26069714/flask-how-to-get-parameters-from-a-json-get-request
Parser attempts to parse json arguments for GET requests Issue #148 flask-restful/flask-restful
19.2. json ― JSON encoder and decoder ― Python 3.5.2 documentation
【总结】
最后还是自己去使用json转换为dict变量，自己实现参数的解析了：
def strToJson(jsonStr):
jsonDict = json.loads(jsonStr, encoding="utf-8")
gLog.debug("jsonStr=%s, jsonDict=%s", jsonStr, jsonDict)
return jsonDict
def wsParseMessage(messageStr):
messageDict = strToJson(messageStr)
gLog.debug("messageStr=%s, messageDict=%s", messageStr, messageDict)
(parseOk, msgDictOrFailReason) = (False, "Unknown reason")
if ("type" in messageDict) and \
("id" in messageDict) and \
("event" in messageDict) and \
("data" in messageDict) :
parseOk = True
msgDictOrFailReason = messageDict
else:
parseOk = False
msgDictOrFailReason = "Invalid message format"
gLog.debug("parseOk=%s, msgDictOrFailReason=%s", parseOk, msgDictOrFailReason)
return (parseOk, msgDictOrFailReason)
def wsProcessMessage(messageDict):
gLog.debug("messageDict=%s", messageDict)
msgType = messageDict["type"] msgId = messageDict["id"] msgEvent = messageDict["event"] msgData = messageDict["data"]gLog.debug("msgType=%s, msgId=%s, msgEvent=%s, msgData=%s", msgType, msgId, msgEvent, msgData)
gLog.debug("type(msgData)=%s", type(msgData))
if msgType == "User":
userId = msgId
gLog.debug("userId=%s", userId)
curUser = User.query.filter_by(id=userId).first()
gLog.debug(‘curUser=%s’, curUser)
if curUser is None:
return (False, "invalid user id %s"%(userId))
if msgEvent == "SaveLocation":
locationDataDict = msgData
gLog.debug("locationDataDict=%s", locationDataDict)
if ("longitude" in locationDataDict) and \
("latitude" in locationDataDict) and \
("shortStr" in locationDataDict) and \
("fullStr" in locationDataDict):
gLog.debug("old location curUser.location=%s", curUser.location)
curUser.location.longitude = locationDataDict["longitude"] curUser.location.latitude = locationDataDict["latitude"] curUser.location.shortStr = locationDataDict["shortStr"] curUser.location.fullStr = locationDataDict["fullStr"]db.session.commit()
gLog.debug("new location curUser.location=%s", curUser.location)
return (True, "save user %s new location ok"%(userId))
else:
return (False, "Invalid location format for %s"%(locationDataDict))
else:
return (False, "Unsupport user %s event %s"%(userId, msgEvent))
else:
return (False, "Unsupport type %s" % (msgType))
(isValidMessage, messageDictOrFailReason) = wsParseMessage(unicodeMsg)
gLog.debug("isValidMessage=%s, messageDictOrFailReason=%s", isValidMessage, messageDictOrFailReason)
if isValidMessage:
(processOk, respMsgOrFailReason) = wsProcessMessage(messageDict=messageDictOrFailReason)
gLog.debug("processOk=%s, respMsgOrFailReason=%s", processOk, respMsgOrFailReason)