代码如下：

from flask import Flask
from flask_marshmallow import Marshmallow
from flask_sqlalchemy import SQLAlchemy
from marshmallow import fieldsapp = Flask(__name__)
app.config["SQLALCHEMY_DATABASE_URI"] = "mysql+pymysql://root:123456@192.168.3.66:3306/tms?charset=utf8mb4"
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = Falsedb = SQLAlchemy()
db.init_app(app)ma = Marshmallow()
ma.init_app(app)# ========================= 模型类 =========================================================
class User(db.Model):__tablename__ = 'admin_user'id = db.Column(db.Integer, primary_key=True, autoincrement=True, comment='用户ID')username = db.Column(db.String(20), comment='用户名')realname = db.Column(db.String(20), comment='真实名字')remark = db.Column(db.String(255), comment='备注')dept_id = db.Column(db.Integer, comment='部门id')# ========================= 序列化类 =========================================================
class UserSchema(ma.Schema):userId = fields.Integer(attribute="id")     # 变量名称为序列化后的key名称，attribute为数据库的字段名称，若变量名称和数据库字段名称一致，可缺省attributeusername = fields.Str()realname = fields.Str()@app.route("/")
def index():users = db.session.query(User).all()print("序列化的模型类")print("入参数据", users)schema = UserSchema(many=True)ret = schema.dump(users)print("出参数据", ret)return retif __name__ == '__main__':app.run(debug=True, host="localhost", port=8000)

执行结果：

联表序列化，后续研究研究在给大家说说。

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