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) |
转载请注明：在路上 » 【已解决】Flask中如何解析已得到的JSON字符串中的参数