python自定义对象转json_python使用属性将自定义对象转换为json

您可以使用decorator来“标记”需要表示的属性。

您仍然需要编写一个to_json函数，但只需在基类中定义一次

下面是一个简单的例子：import json

import inspect

def viewable(fnc):

'''

Decorator, mark a function as viewable and gather some metadata in the process

'''

def call(*pargs, **kwargs):

return fnc(*pargs, **kwargs)

# Mark the function as viewable

call.is_viewable = True

return call

class BaseJsonable(object):

def to_json(self):

result = {}

for name, member in inspect.getmembers(self):

if getattr(member, 'is_viewable', False):

value = member()

result[name] = getattr(value, 'to_json', value.__str__)()

return json.dumps(result)

class Person(BaseJsonable):

@viewable

def name(self):

return self._name

@viewable

def surname(self):

return self._surname

def __init__(self, name, surname):

self._name = name

self._surname = surname

p = Person('hello', 'world')

print p.to_json()

印刷品

^{pr2}$