第一次提交：小程序前端最新版本

utils/redis_lock.py

@@ -0,0 +1,18 @@
+import redis
+from django.conf import settings
+
+redis_client = redis.Redis(
+    host=settings.REDIS_HOST,
+    port=settings.REDIS_PORT,
+    password=settings.REDIS_PASSWORD,
+    db=2,
+    decode_responses=True
+)
+
+def acquire_lock(lock_key, timeout=10):
+    """获取锁，返回是否成功"""
+    return redis_client.set(lock_key, '1', nx=True, ex=timeout)
+
+def release_lock(lock_key):
+    """释放锁"""
+    redis_client.delete(lock_key)