Java实现开箱即用的redis分布式锁

<dependency>
    <groupId>com.github.houbb</groupId>
    <artifactId>lock-core</artifactId>
    <version>1.3.0</version>
</dependency>

public void helloTest() {
    ILock lock = LockBs.newInstance();
    String key = "ddd";
    try {
        // 加锁
        lock.tryLock(key);
        System.out.println("业务处理");
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        // 释放锁
        lock.unlock(key);
    }
}

LockBs.newInstance()
        .id(Ids.uuid32())   //id 生成策略
        .cache(JedisRedisServiceFactory.pooled("127.0.0.1", 6379)) //缓存策略
        .lockSupport(new RedisLockSupport())    // 锁实现策略
        .lockKeyFormat(new LockKeyFormat())     // 针对 key 的格式化处理策略
        .lockReleaseFailHandler(new LockReleaseFailHandler())   //释放锁失败处理
        ;

<dependency>
    <groupId>com.github.houbb</groupId>
    <artifactId>lock-spring</artifactId>
    <version>1.3.0</version>
</dependency>

@Configurable
@ComponentScan(basePackages = "com.github.houbb.lock.test.service")
@EnableLock
@EnableRedisConfig
public class SpringConfig {
}

public @interface EnableLock {

    /**
     * 唯一标识生成策略
     * @return 结果
     */
    String id() default "lockId";

    /**
     * 缓存实现策略 bean 名称
     *
     * 默认引入 redis-config 中的配置
     *
     * @return 实现
     */
    String cache() default "springRedisService";

    /**
     * 加锁 key 格式化策略
     * @return 策略
     */
    String lockKeyFormat() default "lockKeyFormat";

    /**
     * 锁释放失败处理类
     * @return 结果
     */
    String lockReleaseFailHandler() default "lockReleaseFailHandler";

}

@ContextConfiguration(classes = SpringConfig.class)
@RunWith(SpringJUnit4ClassRunner.class)
public class SpringServiceRawTest {

    @Autowired
    private UserService userService;

    @Autowired
    private LockBs lockBs;

    @Test
    public void queryLogTest() {
        final String key = "name";
        try {
            lockBs.tryLock(key);
            final String value = userService.rawUserName(1L);
        } catch (Exception exception) {
            throw new RuntimeException(exception);
        } finally {
            lockBs.unlock(key);
        }
    }

}

@Service
public class UserService {

    @Lock
    public String queryUserName(Long userId) {
    }

    @Lock(value = "#user.name")
    public void queryUserName2(User user) {
    }
}

public @interface Lock {

    /**
     * 缓存的 key 策略，支持 SpEL
     * @return 结果
     */
    String value() default "";

    /**
     * 时间单位
     * @return 单位
     */
    TimeUnit timeUnit() default TimeUnit.SECONDS;

    /**
     * 等待锁时间
     * @return 等待锁时间
     */
    long waitLockTime() default 10;

    /**
     * 业务加锁时间
     * @return 加锁时间
     */
    long lockTime() default 60;

}

<dependency>
    <groupId>com.github.houbb</groupId>
    <artifactId>lock-springboot-starter</artifactId>
    <version>1.3.0</version>
</dependency>