flask数据库

.idea/dataSources.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="identifier.sqlite" uuid="9cc94bfb-f631-4abb-893a-21764c39acea">
+      <driver-ref>sqlite.xerial</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>org.sqlite.JDBC</jdbc-driver>
+      <jdbc-url>jdbc:sqlite:identifier.sqlite</jdbc-url>
+      <working-dir>$ProjectFileDir$</working-dir>
+    </data-source>
+    <data-source source="LOCAL" name="example" uuid="d54fc825-ecd3-4abe-b9e6-e373aa6ffcc2">
+      <driver-ref>sqlite.xerial</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>org.sqlite.JDBC</jdbc-driver>
+      <jdbc-url>jdbc:sqlite:$PROJECT_DIR$/flask框架/instance/example.db</jdbc-url>
+      <working-dir>$ProjectFileDir$</working-dir>
+      <libraries>
+        <library>
+          <url>file://$APPLICATION_CONFIG_DIR$/jdbc-drivers/Xerial SQLiteJDBC/3.45.1/org/xerial/sqlite-jdbc/3.45.1.0/sqlite-jdbc-3.45.1.0.jar</url>
+        </library>
+        <library>
+          <url>file://$APPLICATION_CONFIG_DIR$/jdbc-drivers/Xerial SQLiteJDBC/3.45.1/org/slf4j/slf4j-api/1.7.36/slf4j-api-1.7.36.jar</url>
+        </library>
+      </libraries>
+    </data-source>
+  </component>
+</project>

.idea/misc.xml

@@ -3,9 +3,7 @@
   <component name="Black">
     <option name="sdkName" value="Python 3.12 (base)" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_22" project-jdk-name="D:\ProgramTools\Anaconda" project-jdk-type="Python SDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="python" project-jdk-type="Python SDK" />
   <component name="PythonCompatibilityInspectionAdvertiser">
     <option name="version" value="3" />
   </component>

flask框架/flask数据库迁移/flask数据库迁移.py

@@ -0,0 +1,47 @@
+from flask import Flask
+from flask_sqlalchemy import SQLAlchemy
+from flask_migrate import Migrate
+
+app = Flask(__name__)
+app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///example.db'
+app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+db = SQLAlchemy(app)
+migrate = Migrate(app, db)
+
+
+class User(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    username = db.Column(db.String(80), unique=True, nullable=False)
+    email = db.Column(db.String(120), unique=True, nullable=False)
+    gender = db.Column(db.String(10))  # 新增的性别列，可以为空
+    ew_gender = db.Column(db.String(10))  # 新增的性别列，可以为空
+
+    def __repr__(self):
+        return f'<User {self.username}>'
+
+
+# 初始化数据库并添加数据
+def init_db():
+    with app.app_context():
+        # 创建所有表
+        db.create_all()
+
+        # 检查是否已有数据，避免重复添加
+        if not User.query.first():
+            # 添加初始用户数据
+            users = [
+                User(username='john_doe', email='john@example.com'),
+                User(username='jane_smith', email='jane@example.com'),
+                User(username='bob_johnson', email='bob@example.com')
+            ]
+
+            db.session.add_all(users)
+            db.session.commit()
+            print("初始数据已添加")
+
+
+if __name__ == '__main__':
+    init_db()
+    print("数据库已初始化")
+
+migrate = Migrate(app, db)

python.iml

@@ -10,9 +10,10 @@
       <sourceFolder url="file://$MODULE_DIR$/python爬虫/scrapy/scrapy04" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/python爬虫/python爬虫练习/wangyizhaopin" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/python爬虫/python爬虫练习/douban" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/flask框架" isTestSource="false" />
       <excludeFolder url="file://$MODULE_DIR$/python爬虫/python爬虫练习/novel" />
     </content>
-    <orderEntry type="jdk" jdkName="Python 3.12 (base)" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="python" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
 </module>