diff --git a/app/api/redis_test.py b/app/api/redis_test.py
index be6363f..57ec850 100644
--- a/app/api/redis_test.py
+++ b/app/api/redis_test.py
@@ -1,8 +1,9 @@
-from fastapi import APIRouter
-from app.core.redis import redis_client
+import redis
+from fastapi import APIRouter, Depends
+from app.core.redis import redis_client, get_redis
 
 redis_test_router = APIRouter()
 
 @redis_test_router.get("/ping-redis")
-async def ping_redis():
-    return {"pong": await redis_client.ping()}
+async def ping_redis(r: redis.Redis = Depends(get_redis)):
+    return {"pong": await r.ping()}
diff --git a/app/core/redis.py b/app/core/redis.py
index fc9601e..6fa01ee 100644
--- a/app/core/redis.py
+++ b/app/core/redis.py
@@ -9,7 +9,7 @@ async def init_redis():
     global redis_client
     if redis_client is None:
         redis_client = await redis.Redis(
-            host="localhost",
+            host="127.0.0.1",
             port=6379,
             decode_responses=True,  # 返回 str 而不是 Bytes
         )
@@ -26,5 +26,7 @@ async def close_redis():
 
 # FastAPI 依赖注入用的获取方法
 async def get_redis() -> AsyncGenerator[redis.Redis, None]:
-    assert redis_client is not None, "Redis 未初始化"
+    global redis_client
+    if redis_client is None:
+        await init_redis()   # 懒加载，避免 NoneType
     yield redis_client
\ No newline at end of file
diff --git a/settings.py b/settings.py
index 368e79b..a51f967 100644
--- a/settings.py
+++ b/settings.py
@@ -23,7 +23,7 @@ TORTOISE_ORM = {
 
 ONLINE_SETTINGS = {
     'connections': {
-        'default': 'mysql://root:@124.221.145.135:3306/test_db',
+        'default': 'mysql://root:@127.0.0.1:3306/test_db',
     },
     'apps': {
         'models': {