Python Json数据文件操作原理解析

@author: Leo
 
@software: pycharm
 
@file: operate_json.py
 
@time: 2020/5/3 0003 9:01
 
@Desc:
 
'''
__author__ = 'Leo'
 
import os
import json
 
# 获取当前文件所在的绝对路径
curPath = os.path.abspath(os.path.dirname(__file__))
print(curPath)
rootPath = os.path.abspath(os.path.dirname(curPath))
print(rootPath)
 
config_file_name = r'./data/api_json'
 
 
 
class OperateJson(object):
  """
  操作Json文件
  """
  def __init__(self,file_name = None):
    if file_name:
      self.file_name = file_name
    else:
      self.get_file = config_file_name
      self.file_name = os.path.join(rootPath,self.get_file)
      print("文件名称:%s"%self.file_name)
 
    self.data = self.read_json()
 
 
  def read_json(self):
    """
    读取json数据
    """
    with open(self.file_name,encoding='utf8') as fp:
      # 反序列化，从文件读取(string转dict)
      data = json.load(fp)
      fp.close()
    return data
 
  def get_keyword_data(self,key):
    """
    读取关键字
    """
    return self.data[key]
if __name__ == '__main__':
  # oj = OperateJson("../data/package.json")
  oj = OperateJson()
  print(oj.read_json())
  print(oj.get_keyword_data('api1'))
  print(oj.get_keyword_data('api1')['url'])
  print(oj.get_keyword_data('api1')['data'])