https://hackersandslackers.com/extract-data-from-complex-json-python/-> took the below python code from here
I really need a java code to pull all values of user input specified key from nested json. It takes json as input with key name and returns a list of all values for that particular key in a nested json. i have trouble convering as traversing through json node using java is more complex. Anyone has similar solution ?
def extract_values(obj, key):
"""Pull all values of specified key from nested JSON."""
arr = []
def extract(obj, arr, key):
"""Recursively search for values of key in JSON tree."""
if isinstance(obj, dict):
for k, v in obj.items():
if isinstance(v, (dict, list)):
extract(v, arr, key)
elif k == key:
arr.append(v)
elif isinstance(obj, list):
for item in obj:
extract(item, arr, key)
return arr
results = extract(obj, arr, key)
return
