1.在pom.xml中导入
<dependency>
<groupId>org.redisson</groupId>
<artifactId>redisson-spring-boot-starter</artifactId>
<version>3.16.0</version>
</dependency>
2.在application.yaml中添加redisson配置也可以复用redis配置(此处复用redis配置)
spring:
redis:
database: 4
host: 127.0.0.1
port: 6379
针对不知道配置什么属性,可以查看RedissonAutoConfiguration源文件,从源文件中可以看到,RedissionProperties和RedisProperties文件都引进来了,说明两个文件里的配置信息都可以引用。
RedissonProperties中以spring.redis.redisson开头
RedisProperties中以spring.redis开头
RedissonAutoConfiguration创建RedissonClient流程
3.业务代码使用redisson
@Resource
RedissonClient redissonClient;
RLock lock = redissonClient.getLock(String.format(RedisKeys.LockKeys.ORDER_LOCK_KEY, orderId));
boolean flag = Boolean.FALSE;
try {
if (!lock.tryLock(CommonConstant.LOCK_DEFAULT_WAIT_TIME_LENGTH,
CommonConstant.LOCK_DEFAULT_LEASE_TIME_LENGTH, TimeUnit.SECONDS)) {
throw new BusinessException("获取锁失败");
}
// 业务逻辑代码
} catch (Exception e) {
e.printStackTrace();
} finally {
if (lock.isHeldByCurrentThread()) {
lock.unlock();
}
}
另一种方案,通过指定destroyMethod,当应用关闭时,redissonClient也会关闭
@ConfigurationProperties(prefix = "redisson")
@Configuration
public class MyRedissonConfig {
@Setter
private String address;
@Setter
private Integer database;
/**
* 默认最小空闲连接数
*/
@Setter
private Integer minIdle;
/**
* 所有对Redisson的使用都是通过RedissonClient
* @return
* @throws IOException
*/
@Bean(destroyMethod="shutdown")
public RedissonClient redisson() throws IOException {
//1、创建配置
Config config = new Config();
config.useSingleServer().setAddress(address).setDatabase(database).setConnectionMinimumIdleSize(minIdle);
//2、根据Config创建出RedissonClient实例
//Redis url should start with redis:// or rediss://
RedissonClient redissonClient = Redisson.create(config);
return redissonClient;
}
}