feat: 配置文件新增数据库连接池相关配置

Author: insistence

dash-fastapi-backend/.env.dev

@@ -42,6 +42,14 @@ DB_PASSWORD = 'mysqlroot'
 DB_DATABASE = 'dash-fastapi'
 # 是否开启sqlalchemy日志
 DB_ECHO = true
+# 允许溢出连接池大小的最大连接数
+DB_MAX_OVERFLOW = 10
+# 连接池大小，0表示连接数无限制
+DB_POOL_SIZE = 50
+# 连接回收时间（单位：秒）
+DB_POOL_RECYCLE = 3600
+# 连接池中没有线程可用时，最多等待的时间（单位：秒）
+DB_POOL_TIMEOUT = 30
 
 # -------- Redis配置 --------
 # Redis主机

dash-fastapi-backend/.env.prod

@@ -42,6 +42,14 @@ DB_PASSWORD = 'mysqlroot'
 DB_DATABASE = 'dash-fastapi'
 # 是否开启sqlalchemy日志
 DB_ECHO = true
+# 允许溢出连接池大小的最大连接数
+DB_MAX_OVERFLOW = 10
+# 连接池大小，0表示连接数无限制
+DB_POOL_SIZE = 50
+# 连接回收时间（单位：秒）
+DB_POOL_RECYCLE = 3600
+# 连接池中没有线程可用时，最多等待的时间（单位：秒）
+DB_POOL_TIMEOUT = 30
 
 # -------- Redis配置 --------
 # Redis主机

dash-fastapi-backend/config/database.py

@@ -8,7 +8,12 @@
                           f"{DataBaseConfig.db_host}:{DataBaseConfig.db_port}/{DataBaseConfig.db_database}"
 
 engine = create_engine(
-    SQLALCHEMY_DATABASE_URL, echo=DataBaseConfig.db_echo
+    SQLALCHEMY_DATABASE_URL,
+    echo=DataBaseConfig.db_echo,
+    max_overflow=DataBaseConfig.db_max_overflow,
+    pool_size=DataBaseConfig.db_pool_size,
+    pool_recycle=DataBaseConfig.db_pool_recycle,
+    pool_timeout=DataBaseConfig.db_pool_timeout
 )
 SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
 Base = declarative_base()

dash-fastapi-backend/config/env.py

@@ -41,6 +41,10 @@ class DataBaseSettings(BaseSettings):
     db_password: str = 'mysqlroot'
     db_database: str = 'dash-fastapi'
     db_echo: bool = True
+    db_max_overflow: int = 10
+    db_pool_size: int = 50
+    db_pool_recycle: int = 3600
+    db_pool_timeout: int = 30
 
 
 class RedisSettings(BaseSettings):