测试开发-后端开发do实体类创建

创建user表实体类

• 新增do目录下创建user_entity.py和init.py

from sqlalchemy import Integerfrom server import db"""User表的实体类，与DB字段一致"""class UserEntity(db.Model):    # 表名, 需要重新命名，默认按类名来创建表名    __tablename__ = "user"    # 唯一主键ID    id = db.Column(Integer,primary_key=True)    # 用户名，唯一，不可为空    username = db.Column(db.String(64), nullable=False, unique=True)    # 密码，不为空    password = db.Column(db.String(128), nullable=False)    def user_entity_dict(self):        return {"id": self.id, "username": self.username, "password": self.password}

• 在do的init.py文件写入create_all()方法来初始化创建表

from server import dbfrom do.user_entity import UserEntity   # 倒入要执行的实体类包"""    数据库表创建,运行文件创建    注意：创建一次后，就可以注释掉，避免之后每次启动项目都创建"""if __name__ == "__main__":    db.create_all()

• 执行创建表

/usr/local/bin/python3.8 /Applications/Python/TestPlatform/api_test_platform_demo/backend/do/__init__.py2023-07-04 00:38:57,648 INFO sqlalchemy.engine.Engine SELECT DATABASE()2023-07-04 00:38:57,648 INFO sqlalchemy.engine.Engine [raw sql] {}2023-07-04 00:38:57,661 INFO sqlalchemy.engine.Engine SELECT @@sql_mode2023-07-04 00:38:57,661 INFO sqlalchemy.engine.Engine [raw sql] {}2023-07-04 00:38:57,667 INFO sqlalchemy.engine.Engine SELECT @@lower_case_table_names2023-07-04 00:38:57,668 INFO sqlalchemy.engine.Engine [raw sql] {}2023-07-04 00:38:57,679 INFO sqlalchemy.engine.Engine BEGIN (implicit)2023-07-04 00:38:57,680 INFO sqlalchemy.engine.Engine SELECT COUNT(*) FROM information_schema.tables WHERE table_schema = %(table_schema)s AND table_name = %(table_name)s2023-07-04 00:38:57,680 INFO sqlalchemy.engine.Engine [generated in 0.00026s] {'table_schema': 'testplatform', 'table_name': 'user'}2023-07-04 00:38:57,689 INFO sqlalchemy.engine.Engine CREATE TABLE user (id INTEGER NOT NULL AUTO_INCREMENT, username VARCHAR(64) NOT NULL, password VARCHAR(128) NOT NULL, PRIMARY KEY (id), UNIQUE (username))2023-07-04 00:38:57,689 INFO sqlalchemy.engine.Engine [no key 0.00021s] {}2023-07-04 00:38:57,773 INFO sqlalchemy.engine.Engine COMMITProcess finished with exit code 0

• 查看数据库中是否创建成功

  

user表以及字段创建成功啦，以此类推所有的实体类一次性写好一起创建