chatRoom

urbanLifelineServ/common/common-redis/src/main/java/org/xyzh/common/redis/service/RedisService.java

@@ -47,6 +47,19 @@ public class RedisService {
         redisTemplate.opsForValue().set(key, value, timeout, unit);
     }
 
+    /**
+     * @description    如果key不存在则设置（分布式锁）
+     * @param key String 键
+     * @param value Object 值
+     * @param timeoutSeconds long 过期秒数
+     * @return Boolean 是否设置成功
+     * @author cascade
+     * @since 2025-12-22
+     */
+    public Boolean setIfAbsent(String key, Object value, long timeoutSeconds) {
+        return redisTemplate.opsForValue().setIfAbsent(key, value, timeoutSeconds, TimeUnit.SECONDS);
+    }
+
     /**
      * @description    获取key对应的value
      * @param key String 键