参数格式

settings中设置request，参数转换方法的py文件地址路径

加载路径获取名称和方法名

def load_request_encoder():
    checkers=[]
    for checker in settings.REQUEST_DATA_ENCODERS:
        if not checker.startswith('utils.RequestDataFactory') :
            continue
        check_module = None
        try:
            check_module = importlib.import_module(checker)
        except ModuleNotFoundError as e:
            module_name,class_name=checker.rsplit('.')
            check_module=getattr(importlib.import_module(module_name),class_name)


        all_methods=inspect.getmembers(check_module,inspect.isroutine)
        print(checker) #utils.RequestDataFactory
        for key,value in all_methods:
            checkers.append((checker,key))

        print(checkers) #[('utils.RequestDataFactory', 'Default_Json2Form'), ('utils.RequestDataFactory', 'Default_Json2Json')]
    return checkers