From b06826593a66b7281767ba79b7f08000464923a4 Mon Sep 17 00:00:00 2001
From: Jack <46790855@qq.com>
Date: Wed, 12 Nov 2025 10:46:39 +0800
Subject: [PATCH] =?UTF-8?q?=E5=88=86=E5=B8=83=E5=BC=8F=E9=94=81=E5=85=AC?=
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---
.../common/utils/DistributedLockHelper.java | 28 +++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/mall-common/src/main/java/com/suisung/mall/common/utils/DistributedLockHelper.java b/mall-common/src/main/java/com/suisung/mall/common/utils/DistributedLockHelper.java
index ecd51293..289c365b 100644
--- a/mall-common/src/main/java/com/suisung/mall/common/utils/DistributedLockHelper.java
+++ b/mall-common/src/main/java/com/suisung/mall/common/utils/DistributedLockHelper.java
@@ -7,6 +7,34 @@ import org.springframework.stereotype.Component;
import java.util.UUID;
+/**
+ * 分布式锁工具类
+ *
+ * 使用示例:
+ *
+ * {@code
+ * // 方式1: 简单使用
+ * DistributedLockHelper lockHelper = new DistributedLockHelper();
+ * if (lockHelper.tryLock("order_create_lock", 30)) {
+ * try {
+ * // 执行需要加锁的业务逻辑
+ * createOrder();
+ * } finally {
+ * lockHelper.releaseLock("order_create_lock");
+ * }
+ * }
+ *
+ * // 方式2: 使用自动续期锁
+ * try (DistributedLockHelper.LockHolder lockHolder =
+ * lockHelper.tryLockWithAutoRenew("batch_process_lock", 30, 300)) {
+ * if (lockHolder != null) {
+ * // 执行长时间业务逻辑
+ * processBatchData();
+ * }
+ * }
+ * }
+ *
+ */
@Component
public class DistributedLockHelper {