database='dbname' ) returnconnection @app.route('/add_user',methods=['POST']) defadd_user(): data=request.json name=data['name'] email=data['email'] connection=get_db_connection() cursor=connection.cursor() cur
from flask import Flask, request import sqlite3 app = Flask(__name__) @app.route('/insert', methods=['POST']) def insert_data(): data = request.form['data'] conn = sqlite3.connect('database.db') cursor = conn.cursor() cursor.execute("INSERT INTO table_name (column_name) VA...
from flaskr.dbimportget_db,init_dbwithopen(os.path.join(os.path.dirname(__file__),'data.sql'),'rb')asf:_data_sql=f.read().decode('utf8')@pytest.fixture defapp():db_fd,db_path=tempfile.mkstemp()app=create_app({'TESTING':True,'DATABASE':db_path,})withapp.app_context():init...
新建tests/data.sql文件,插入一些测试数据: INSERTINTOuser(username, password)VALUES('test','pbkdf2:sha256:50000$TCI4GzcX$0de171a4f4dac32e3364c7ddc7c14f3e2fa61f2d17574483f7ffbb431b4acb2f'), ('other','pbkdf2:sha256:50000$kJPKsz6N$d2d4784f1b030a9761f5ccaeeaca413f27f2ecb76d6168407af962d...
SQLALCHEMY_DATABASE_URI = "mysql://root:123@127.0.0.1:3306/students?charset=utf8" # 动态追踪修改设置,如未设置只会提示警告 SQLALCHEMY_TRACK_MODIFICATIONS = False # 显示原始SQL语句 SQLALCHEMY_ECHO = True # 调整json数据转换中文的配置
with sql.connect("database.db") as con: cur = con.cursor() cur.execute('''INSERT INTO students (name,addr,city,pin) VALUES(?, ?, ?, ?)''',(nm,addr,city,pin)) con.commit() msg = "Record successfully added" except: con.rollback() msg = "error in insert operation" finally:...
1.python database.py db init 生成管理迁移文件的migrations目录 2.python database.py db migrate -m "注释" 在migrations/versions中生成一个文件,该文件记录数据表的创建和更新的不同版本的代码。 3.python database.py db upgrade 在数据库中生成对应的表格。
@app.route('/get_data_from_mysql')defget_data_from_mysql():# 1. 连接数据库conn=pymysql.Connection(host='127.0.0.1',port=3306,user='root',password='123',database='test',charset='utf8mb4',cursorclass=pymysql.cursors.DictCursor)# 2. 创建游标对象try:# 进行错误处理withconn.cursor()as...
result = c.execute("INSERT INTO users (name, hash) VALUES (:name, :hash)", {"name":request.form.get("username"), "hash":hashp}) conn.commit() 对于以“result=…”开头的行,调试器显示“sqlite3.DatabaseError:文件不是数据库”错误。
首先从sqlalchemy中导入create_engine,用这个函数来创建引擎,然后用engine.connect()来连接数据库。其中一个比较重要的一点是,通过create_engine函数的时候,需要传递一个满足某种格式的字符串,对这个字符串的格式来进行解释:dialect+driver://username:password@host:port/database?charset=utf8 ...