json根据关键字查找需要的行

最新推荐文章于 2023-02-17 17:14:33 发布

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最新推荐文章于 2023-02-17 17:14:33 发布

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分类专栏： python 文章标签： python json

本文链接：https://blog.youkuaiyun.com/qq_37146395/article/details/109295311

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该博客介绍了如何使用Python高效地在JSON数据中搜索包含特定关键字的行，无论关键字顺序如何。

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可以选择按照needkeys顺序，或者不按照顺序，找到findkeys关键字都存在的某行

def findKeyByKeys(CurLevelKey, outputdata, findKeys, needKeys, order=True):
    isLastFind = False
    if isinstance(needKeys, list):
        needKeysMap = OrderedDict()
        for item in needKeys:
            needKeysMap[item] = 0
        needKeysTupleMap = (needKeysMap,)
        needKeys = needKeysTupleMap
    elif isinstance(needKeys, tuple):
        pass
    else:
        print "传入查找关键字参数错误，请使用list"
        return False
    values = needKeys[0].values()
    isLastFind = True if sum(values) == len(values) else False
    if not isinstance(CurLevelKey, dict):
        return
    elif order:
        if isLastFind:
            for item in CurLevelKey:
                for findkey in findKeys:
                    rightLevel = True
                    if not CurLevelKey.has_key(findkey):
                        rightLevel = False
                        break
                if rightLevel:
                    outputdata.append(CurLevelKey)
                    return True
                findKeyByKeys(CurLevelKey[item],
                              outputdata, findKeys, needKeys, order)
        else:
            for item in needKeys[0]:
                if needKeys[0][item] == 0:
                    orderfindKey = item
                    break
            for item in CurLevelKey:
                if type(orderfindKey) == type(item):
                    if orderfindKey == item:
                        needKeys[0][orderfindKey] = 1
                findKeyByKeys(CurLevelKey[item],
                              outputdata, findKeys, needKeys, order)
    else:
        if isLastFind:
            for item in CurLevelKey:
                for findkey in findKeys:
                    rightLevel = True
                    if not CurLevelKey.has_key(findkey):
                        rightLevel = False
                        break
                if rightLevel:
                    outputdata.append(CurLevelKey)
                    return True
                findKeyByKeys(CurLevelKey[item],
                              outputdata, findKeys, needKeys, order)
        else:
            for item in CurLevelKey:
                for needkey in needKeys[0]:
                    if type(item) == type(needkey):
                        if item == needkey:
                            needKeys[0][needkey] = 1
                findKeyByKeys(CurLevelKey[item],
                              outputdata, findKeys, needKeys, order)