使用python從json對象中提取字段及其路徑

Question

我從 elasticsearch 索引映射中獲得了 json 對象我想根據其類型對來自 json 對象的索引字段進行分組。

https://gist.github.com/akthodu/47404880d2e5b6480a881214d41feb58

長場

act.sdeactLongDescription.properties.id.type
act.properties.actstate.type

文本域：

act.properties.sdeactLongDescription.longDescription.type

當我遍歷 json.loads 給出的輸出時，我得到字符串對象。 是否有任何 json 庫來提取像 bs4 這樣的內部元素？

Answer 1

您可以執行遞歸函數並查找鏈的末端，如下所示：

import json

d = open('test.json')
test = json.load(d, strict=False)


# You could add the chain of keys to a list
def recursive_items(dictionary):
    for key, value in dictionary.items():
        if type(value) is dict:
            # Value becomes a sub-dictionary
            yield from recursive_items(value)
        else:
            # End of the chain
            yield (key, value)


if __name__ == "__main__":
    for key, value in recursive_items(test):
        print(key, value)

# Regex might work too (this pattern could prob be improved a lot)

import re
pattern = r'[^,]+"type"[^,]+'
matches = re.findall(pattern, string, re.DOTALL)