這篇文章帶給大家的內容是關於Python自訂類別物件序列化為Json字串(程式碼範例),有一定的參考價值,有需要的朋友可以參考一下,希望對你有所幫助。
之前已經實現了Python: Json字串反序列化為自訂類別對象,這次來實現了Json的序列化。
測試程式碼與結果如下:
import Json.JsonTool class Score: math = 0 chinese = 0 class Book: name = '' type = '' class Student: id = '' name = '' score = Score() books = [Book()] student = Student() json_data = '{"id":"123", "name":"kid", "score":{"math":100, "chinese":98}, ' \ '"books":[{"name":"math", "type":"study"}, ' \ '{"name":"The Little Prince", "type":"literature"}]} ' Json.JsonTool.json_deserialize(json_data, student) print(student.name) print(student.score.math) print(student.books[1].name) student_str = Json.JsonTool.json_serialize(student) print(student_str) input("\n按回车键退出。")
執行結果:
kid100The Little Prince {"books": [{"name": "math", "type": "study"}, {"name": "The Little Prince", "type": "literature"}], "id": "123", "name": "kid", "score": {"chinese": 98, "math": 100}} 按回车键退出。
實作程式碼如下:
def json_serialize(obj): obj_dic = class2dic(obj) return json.dumps(obj_dic) def class2dic(obj): obj_dic = obj.__dict__ for key in obj_dic.keys(): value = obj_dic[key] obj_dic[key] = value2py_data(value) return obj_dic def value2py_data(value): if str(type(value)).__contains__('__main__'): # value 为自定义类 value = class2dic(value) elif str(type(value)) == "<class 'list'>": # value 为列表 for index in range(0, value.__len__()): value[index] = value2py_data(value[index]) return value
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