From 702a733c0fc404225592bc0cd8bf482f9182d82b Mon Sep 17 00:00:00 2001
From: xuhy <3313886187@qq.com>
Date: 星期三, 12 二月 2025 13:52:28 +0800
Subject: [PATCH] Merge branch 'xizang-changyun' of https://gitee.com/xiaochen991015/xizang
---
ruoyi-common/src/main/java/com/ruoyi/common/core/redis/RedisCache.java | 29 +++++++++++++++++++++++++++++
1 files changed, 29 insertions(+), 0 deletions(-)
diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/core/redis/RedisCache.java b/ruoyi-common/src/main/java/com/ruoyi/common/core/redis/RedisCache.java
index 932a4af..f405893 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/core/redis/RedisCache.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/core/redis/RedisCache.java
@@ -289,6 +289,35 @@
}
/**
+ * 尝试加锁
+ *
+ * @param lockKey 锁的key
+ * @param requestId 锁的持有者标识符（如UUID）
+ * @param expireTime 锁的过期时间（秒）
+ * @return 加锁成功返回true，否则返回false
+ */
+ public boolean trylockLoop(String lockKey, String requestId,long expireTime) {
+ String lockKeyWithPrefix = LOCK_PREFIX + lockKey;
+ // 使用SET命令的NX和PX选项来加锁
+ Boolean result = false;
+ int num = 50;
+ while (num>0){
+ result = redisTemplate.opsForValue().setIfAbsent(lockKeyWithPrefix, requestId, expireTime, TimeUnit.SECONDS);
+ if (result){
+ break;
+ }
+ try {
+ TimeUnit.MILLISECONDS.sleep(200);
+ } catch (InterruptedException e) {
+ throw new RuntimeException(e);
+ }
+ num--;
+ }
+ return result;
+ }
+
+
+ /**
* 解锁
*
* @param lockKey 锁的key
--
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