From 4a46e7d2f52e2202c88c8413454432ef49aa5c5d Mon Sep 17 00:00:00 2001
From: chenqi <chen.qi@jin-group.cn>
Date: Sat, 28 Feb 2026 17:53:30 +0800
Subject: [PATCH] =?UTF-8?q?fix(backend):=20=E4=BF=AE=E6=AD=A3=E9=BB=98?=
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- 将默认数据库用户名从 your_user 改为 postgresql，明确用户名字段说明
- 修改 .env.example 中 DEBUG 默认为 True，方便本地调试
- 更新 deploy-docker-compose.sh 脚本中 DEBUG 默认值为 True，保持一致性
- 保持数据库连接字符串格式正确，确保环境变量配置一致
---
 backend/.env.example          |  5 ++-
 backend/test_db_connection.py | 77 +++++++++++++++++++++++++++++++++++
 spug/deploy-docker-compose.sh |  2 +-
 3 files changed, 81 insertions(+), 3 deletions(-)
 create mode 100644 backend/test_db_connection.py

diff --git a/backend/.env.example b/backend/.env.example
index fecc8b3..0219fb4 100644
--- a/backend/.env.example
+++ b/backend/.env.example
@@ -3,10 +3,11 @@
 # 数据库配置 (PostgreSQL)
 # 生产环境请修改为实际的数据库连接信息
 # 格式: postgresql+asyncpg://用户名:密码@主机:端口/数据库名
-DATABASE_URL=postgresql+asyncpg://your_user:your_password@your_host:15432/hospital_performance
+# 注意: 用户名是 postgresql 不是 postgres
+DATABASE_URL=postgresql+asyncpg://postgresql:your_password@your_host:15432/hospital_performance
 
 # JWT 配置
 SECRET_KEY=your-secret-key-change-in-production-min-32-characters
 
 # 调试模式
-DEBUG=False
+DEBUG=True
diff --git a/backend/test_db_connection.py b/backend/test_db_connection.py
new file mode 100644
index 0000000..ff337aa
--- /dev/null
+++ b/backend/test_db_connection.py
@@ -0,0 +1,77 @@
+"""
+数据库连接测试脚本
+"""
+import asyncio
+import os
+import sys
+from pathlib import Path
+
+# 添加项目根目录到路径
+sys.path.insert(0, str(Path(__file__).parent))
+
+from sqlalchemy import text
+from sqlalchemy.ext.asyncio import create_async_engine
+
+
+async def test_connection():
+    """测试数据库连接"""
+    print("=" * 50)
+    print("数据库连接诊断")
+    print("=" * 50)
+    
+    # 1. 显示当前工作目录
+    print(f"\n1. 当前工作目录: {os.getcwd()}")
+    
+    # 2. 检查 .env 文件
+    env_path = Path(__file__).parent / ".env"
+    print(f"2. .env 文件路径: {env_path}")
+    print(f"   .env 文件存在: {env_path.exists()}")
+    
+    if env_path.exists():
+        print(f"   .env 文件内容:")
+        with open(env_path) as f:
+            for line in f:
+                if "PASSWORD" in line.upper() or "SECRET" in line.upper():
+                    # 隐藏敏感信息
+                    print(f"   {line.strip()[:30]}***")
+                else:
+                    print(f"   {line.strip()}")
+    
+    # 3. 加载配置
+    print("\n3. 加载配置:")
+    from app.core.config import settings
+    print(f"   DATABASE_URL: {settings.DATABASE_URL[:50]}***")
+    print(f"   DEBUG: {settings.DEBUG}")
+    
+    # 4. 测试数据库连接
+    print("\n4. 测试数据库连接:")
+    try:
+        engine = create_async_engine(settings.DATABASE_URL, echo=True)
+        async with engine.connect() as conn:
+            result = await conn.execute(text("SELECT 1"))
+            print("   ✅ 数据库连接成功!")
+        await engine.dispose()
+    except Exception as e:
+        print(f"   ❌ 数据库连接失败: {type(e).__name__}: {e}")
+    
+    # 5. 测试其他可能的连接字符串
+    print("\n5. 测试备选连接字符串:")
+    test_urls = [
+        "postgresql+asyncpg://postgresql:Jchl1528@192.168.110.252:15432/hospital_performance",
+        "postgresql+asyncpg://postgres:Jchl1528@192.168.110.252:15432/hospital_performance",
+    ]
+    
+    for url in test_urls:
+        try:
+            engine = create_async_engine(url)
+            async with engine.connect() as conn:
+                result = await conn.execute(text("SELECT 1"))
+                print(f"   ✅ 连接成功: {url[:40]}***")
+            await engine.dispose()
+            break
+        except Exception as e:
+            print(f"   ❌ 失败: {str(e)[:50]}")
+
+
+if __name__ == "__main__":
+    asyncio.run(test_connection())
diff --git a/spug/deploy-docker-compose.sh b/spug/deploy-docker-compose.sh
index 3791566..8dcdf78 100644
--- a/spug/deploy-docker-compose.sh
+++ b/spug/deploy-docker-compose.sh
@@ -21,7 +21,7 @@ export DATABASE_USER="${DATABASE_USER:-postgresql}"
 export DATABASE_PASSWORD="${DATABASE_PASSWORD:-Jchl1528}"
 export DATABASE_NAME="${DATABASE_NAME:-hospital_performance}"
 export SECRET_KEY="${SECRET_KEY:-change-this-secret-key-in-production}"
-export DEBUG="${DEBUG:-False}"
+export DEBUG="${DEBUG:-True}"
 
 # 构建完整的 DATABASE_URL（后端使用此变量）
 export DATABASE_URL="postgresql+asyncpg://${DATABASE_USER}:${DATABASE_PASSWORD}@${DATABASE_HOST}:${DATABASE_PORT}/${DATABASE_NAME}"