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66 lines
1.9 KiB
Python
66 lines
1.9 KiB
Python
# -*- coding: utf-8 -*-
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"""
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测试数据库连接
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"""
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import sys
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import pymysql
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from dotenv import load_dotenv
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import os
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# 设置UTF-8编码输出
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if sys.platform.startswith('win'):
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import io
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sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
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load_dotenv()
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def test_connection():
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"""测试MySQL连接"""
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print("正在测试数据库连接...")
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print(f"主机: {os.getenv('DB_HOST')}")
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print(f"端口: {os.getenv('DB_PORT')}")
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print(f"用户: {os.getenv('DB_USER')}")
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print(f"数据库: {os.getenv('DB_NAME')}")
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try:
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connection = pymysql.connect(
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host=os.getenv('DB_HOST'),
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port=int(os.getenv('DB_PORT', 3306)),
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user=os.getenv('DB_USER'),
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password=os.getenv('DB_PASSWORD'),
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database=os.getenv('DB_NAME'),
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charset='utf8mb4'
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)
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print("\n✓ 数据库连接成功！")
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# 测试查询
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with connection.cursor() as cursor:
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cursor.execute("SELECT VERSION()")
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version = cursor.fetchone()
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print(f"✓ MySQL版本: {version[0]}")
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cursor.execute("SHOW TABLES")
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tables = cursor.fetchall()
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if tables:
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print(f"✓ 现有表: {len(tables)} 个")
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for table in tables:
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print(f" - {table[0]}")
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else:
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print(" 当前数据库为空，可以运行 init_db.py 初始化")
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connection.close()
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return True
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except Exception as e:
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print(f"\n✗ 数据库连接失败: {str(e)}")
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print("\n请检查:")
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print("1. 服务器MySQL是否开放了3306端口")
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print("2. .env文件中的数据库配置是否正确")
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print("3. 数据库用户是否有远程访问权限")
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print("4. 服务器防火墙/安全组是否允许3306端口")
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return False
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if __name__ == '__main__':
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test_connection()
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