Python：使用json.loads（）读取json对象数组

• Z时代
• 2024-01-10
• 分类：问答

我有一个文件data.txt，其中包含json对象的列表，如下所示：

[{"id":"1111","color":["blue"],"length":"120"},{"id":"1112","color":["red"],"length":"130"},{"id":"1112","color":["yellow"],"length":"136"}]

我试图使用python json.loads读取它：

data = json.loads("data.txt")

但随后出现以下错误。我在这里想念什么吗？非常感谢！

/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.pyc in loads(s, encoding, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
    336             parse_int is None and parse_float is None and
    337             parse_constant is None and object_pairs_hook is None and not kw):
--> 338         return _default_decoder.decode(s)
    339     if cls is None:
    340         cls = JSONDecoder
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.pyc in decode(self, s, _w)
    363 
    364         """
--> 365         obj, end = self.raw_decode(s, idx=_w(s, 0).end())
    366         end = _w(s, end).end()
    367         if end != len(s):
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.pyc in raw_decode(self, s, idx)
    381             obj, end = self.scan_once(s, idx)
    382         except StopIteration:
--> 383             raise ValueError("No JSON object could be decoded")
    384         return obj, end
ValueError: No JSON object could be decoded

回答：

您正在尝试读取字符串"data.txt"。您要打开并读取 文件 。

import json
with open('data.txt', 'r') as data_file:
    json_data = data_file.read()
data = json.loads(json_data)

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