新闻动态

关于Python dict存中文字符dumps()的问题

发布日期:2021-12-17 18:25 | 文章来源:CSDN

Background

之前数据库只区分了Android,IOS两个平台,游戏上线后现在PM想要区分国服,海外服,港台服。这几个字段从前端那里的接口获得,code过程中发现无论如何把中文的value丢到dict中存到数据库中就变成类似这样**"\u56fd\u670d"**

Solution

1.首先怀疑数据库编码问题,但看了一下数据库其他字段有中文格式的,所以要先check数据库(MySQL)的字符编码。

可以看到明明就TMD是utf-8啊,所以一定不是数据库层出现的问题,回到代码debug

2.Google一下
这个问题好多都是Python2的解决方案,找到了一个感觉靠谱点的

dict1 = {'name':'张三'}
print(json.dumps(dict1,encoding='utf-8',ensure_ascii=False))

博客中的解法,但是我的Python版本是3.9,就会报Error如下

Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/local/python3/lib/python3.9/threading.py", line 950, in _bootstrap_inner
 self.run()
  File "/usr/local/python3/lib/python3.9/threading.py", line 888, in run
 self._target(*self._args, **self._kwargs)
  File "/home/dapan_ext/project_table.py", line 91, in http_request
 self.get_data(project_response_data)
  File "/home/dapan_ext/project_table.py", line 115, in get_data
 json.dumps(dict_1, encoding='utf-8', ensure_ascii=False)
  File "/usr/local/python3/lib/python3.9/json/__init__.py", line 234, in dumps
 return cls(
TypeError: __init__() got an unexpected keyword argument 'encoding'

意思就是:在__init__json这个东东的时候它不认识'encoding'这个argument。

那就翻阅源码康康->->:

def dumps(obj, *, skipkeys=False, ensure_ascii=True, check_circular=True,
  allow_nan=True, cls=None, indent=None, separators=None,
  default=None, sort_keys=False, **kw):
 """Serialize ``obj`` to a JSON formatted ``str``.
 If ``skipkeys`` is true then ``dict`` keys that are not basic types
 (``str``, ``int``, ``float``, ``bool``, ``None``) will be skipped
 instead of raising a ``TypeError``.
 If ``ensure_ascii`` is false, then the return value can contain non-ASCII
 characters if they appear in strings contained in ``obj``. Otherwise, all
 such characters are escaped in JSON strings.
 If ``check_circular`` is false, then the circular reference check
 for container types will be skipped and a circular reference will
 result in an ``OverflowError`` (or worse).
 If ``allow_nan`` is false, then it will be a ``ValueError`` to
 serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``) in
 strict compliance of the JSON specification, instead of using the
 JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``).
 If ``indent`` is a non-negative integer, then JSON array elements and
 object members will be pretty-printed with that indent level. An indent
 level of 0 will only insert newlines. ``None`` is the most compact
 representation.
 If specified, ``separators`` should be an ``(item_separator, key_separator)``
 tuple.  The default is ``(', ', ': ')`` if *indent* is ``None`` and
 ``(',', ': ')`` otherwise.  To get the most compact JSON representation,
 you should specify ``(',', ':')`` to eliminate whitespace.
 ``default(obj)`` is a function that should return a serializable version
 of obj or raise TypeError. The default simply raises TypeError.
 If *sort_keys* is true (default: ``False``), then the output of
 dictionaries will be sorted by key.
 To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
 ``.default()`` method to serialize additional types), specify it with
 the ``cls`` kwarg; otherwise ``JSONEncoder`` is used.
 """
 # cached encoder
 if (not skipkeys and ensure_ascii and
  check_circular and allow_nan and
  cls is None and indent is None and separators is None and
  default is None and not sort_keys and not kw):
  return _default_encoder.encode(obj)
 if cls is None:
  cls = JSONEncoder
 return cls(
  skipkeys=skipkeys, ensure_ascii=ensure_ascii,
  check_circular=check_circular, allow_nan=allow_nan, indent=indent,
  separators=separators, default=default, sort_keys=sort_keys,
  **kw).encode(obj)

注意到这里:

If ``ensure_ascii`` is false, then the return value can contain non-ASCII
characters if they appear in strings contained in ``obj``. Otherwise, all
such characters are escaped in JSON strings.

意思就是:
ensure_ascii置为false时,返回值就可以返回非ASCII编码的字符,这岂不正是我们需要的,Got it!

回去改代码:

server_name = str(related['name'])
# print(server_name)
dict_1 = {'appKey': related['appKey'], 'client': related['client'], 'name': server_name}
crasheye.append(dict_1)
crasheyes = json.dumps(crasheye, ensure_ascii=False)

完美解决问题(●ˇ∀ˇ●)

到此这篇关于Python dict存中文字符dumps()的文章就介绍到这了,更多相关Python dict中文字符dumps()内容请搜索本站以前的文章或继续浏览下面的相关文章希望大家以后多多支持本站!

版权声明:本站文章来源标注为YINGSOO的内容版权均为本站所有,欢迎引用、转载,请保持原文完整并注明来源及原文链接。禁止复制或仿造本网站,禁止在非www.yingsoo.com所属的服务器上建立镜像,否则将依法追究法律责任。本站部分内容来源于网友推荐、互联网收集整理而来,仅供学习参考,不代表本站立场,如有内容涉嫌侵权,请联系alex-e#qq.com处理。

相关文章

实时开通

自选配置、实时开通

免备案

全球线路精选!

全天候客户服务

7x24全年不间断在线

专属顾问服务

1对1客户咨询顾问

在线
客服

在线客服:7*24小时在线

客服
热线

400-630-3752
7*24小时客服服务热线

关注
微信

关注官方微信
顶部