代码如下:
python
from flask import Flask
from flask_marshmallow import Marshmallow
from flask_sqlalchemy import SQLAlchemy
from marshmallow import fields
app = Flask(__name__)
app.config["SQLALCHEMY_DATABASE_URI"] = "mysql+pymysql://root:123456@192.168.3.66:3306/tms?charset=utf8mb4"
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
db = 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attribute
username = 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 ret
if __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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