Python：Flask使用jsonify格式化时间

# -*- coding: utf-8 -*-
from datetime import datetime, date
from flask.json import JSONEncoder
class CustomJSONEncoder(JSONEncoder):
    def default(self, obj):
        if isinstance(obj, datetime):
            return obj.strftime('%Y-%m-%d %H:%M:%S')
        elif isinstance(obj, date):
            return obj.strftime('%Y-%m-%d')
        else:
            return JSONEncoder.default(self, obj)

from datetime import datetime
from flask import Flask, jsonify
app = Flask(__name__)
#  替换默认的json编码器
app.json_encoder = CustomJSONEncoder
@app.route('/test')
def test_world():
    time = datetime.now()
    return jsonify({'time': time})

{
  "time": "2020-09-17 16:31:55"
}