TypeError: Object of type 'int32' is not JSON serializable

將模型用flask封裝，返回json時報錯：TypeError: Object of type 'int32' is not JSON serializable

網上搜索出的解決方案：重寫json.JSONEncoder

class MyEncoder(json.JSONEncoder):
    def default(self, obj):
        if isinstance(obj, numpy.integer):
            return int(obj)
        elif isinstance(obj, numpy.floating):
            return float(obj)
        elif isinstance(obj, numpy.ndarray):
            return obj.tolist()
        else:
            return super(MyEncoder, self).default(obj)

 

json.dumps(data,cls=MyEncoder)

參考博客：

https://www.cnblogs.com/lyq-bk1/p/9597172.html