增加 Redis 分布式锁

src/main/java/cn/iocoder/dashboard/framework/lock4j/config/Lock4jConfiguration.java

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+package cn.iocoder.dashboard.framework.lock4j.config;
+
+import cn.hutool.core.util.ClassUtil;
+import cn.iocoder.dashboard.framework.lock4j.core.DefaultLockFailureStrategy;
+import cn.iocoder.dashboard.framework.lock4j.core.Lock4jRedisKeyConstants;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class Lock4jConfiguration {
+
+    static {
+        // 手动加载 Lock4jRedisKeyConstants 类，因为它不会被使用到
+        // 如果不加载，会导致 Redis 监控，看到它的 Redis Key 枚举
+        ClassUtil.loadClass(Lock4jRedisKeyConstants.class.getName());
+    }
+
+    @Bean
+    public DefaultLockFailureStrategy lockFailureStrategy() {
+        return new DefaultLockFailureStrategy();
+    }
+
+}

src/main/java/cn/iocoder/dashboard/framework/lock4j/core/DefaultLockFailureStrategy.java

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+package cn.iocoder.dashboard.framework.lock4j.core;
+
+import cn.iocoder.dashboard.common.exception.ServiceException;
+import cn.iocoder.dashboard.common.exception.enums.GlobalErrorCodeConstants;
+import com.baomidou.lock.LockFailureStrategy;
+import lombok.extern.slf4j.Slf4j;
+
+/**
+ * 自定义获取锁失败策略，抛出 {@link cn.iocoder.dashboard.common.exception.ServiceException} 异常
+ */
+@Slf4j
+public class DefaultLockFailureStrategy implements LockFailureStrategy {
+
+    @Override
+    public void onLockFailure(String key, long acquireTimeout, int acquireCount) {
+        log.debug("[onLockFailure][线程:{} 获取锁失败，key:{} 获取超时时长:{} ms]", Thread.currentThread().getName(), key, acquireTimeout);
+        throw new ServiceException(GlobalErrorCodeConstants.CONCURRENCY_REQUESTS);
+    }
+
+}

src/main/java/cn/iocoder/dashboard/framework/lock4j/core/Lock4jRedisKeyConstants.java

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+package cn.iocoder.dashboard.framework.lock4j.core;
+
+import cn.iocoder.dashboard.framework.redis.core.RedisKeyDefine;
+import org.redisson.api.RLock;
+
+import static cn.iocoder.dashboard.framework.redis.core.RedisKeyDefine.KeyTypeEnum.HASH;
+
+/**
+ * Lock4j Redis Key 枚举类
+ *
+ * @author 芋道源码
+ */
+public interface Lock4jRedisKeyConstants {
+
+    RedisKeyDefine LOCK4J = new RedisKeyDefine("分布式锁",
+            "lock4j:%s", // 参数来自 DefaultLockKeyBuilder 类
+            HASH, RLock.class, RedisKeyDefine.TimeoutTypeEnum.DYNAMIC); // Redisson 的 Lock 锁，使用 Hash 数据结构
+
+}

src/main/java/cn/iocoder/dashboard/framework/lock4j/package-info.java

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+/**
+ * 分布式锁组件，使用 https://gitee.com/baomidou/lock4j 开源项目
+ */
+package cn.iocoder.dashboard.framework.lock4j;