from flask import Flask,render_template
from flask_restful import Api,Resource,fields,marshal_withapp = Flask(__name__)
api =Api(app)class News:def __init__(self,code,msg,info):self.code = codeself.msg = msgself.info = infoself.state= 1000class NewsView(Resource):resouce_fileds = {# 通过参数default来设置默认值'code':fields.Integer(default=200),'msg':fields.String,# 通过参数attribute来设置提取数据的字段'content':fields.String(attribute='info'),# 优先级不如真实数据里面的高'state':fields.Integer(default=2000)}@marshal_with(resouce_fileds)def get(self):return News(200,'访问成功！','移动')@marshal_with(resouce_fileds)def post(self):return {'msg':'增加数据成功','info':'联通'}@marshal_with(resouce_fileds)def put(self):# 在返回对象时，会自动在对象中获取与约定好的字段，并获取分装成jsonnews = News(404,'访问成功','移动')return newsapi.add_resource(NewsView,'/news/')if __name__=="__main__":app.run(debug=True)

执行结果：