java中使用redis的事务

1、自定义redisConfig , 如果项目中要使用redis事务，最好将用事务和不用事务的redis分开。

@Configuration
public class RedisConfig {
@Resource
private RedisProperties redisProperties;


@Bean("redisTemplate")
public RedisTemplate<String, Object> redisTemplate() {
    RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
    redisTemplate.setConnectionFactory(redis1ConnectionFactory());

    GenericJackson2JsonRedisSerializer genericJackson2JsonRedisSerializer = new GenericJackson2JsonRedisSerializer();
    redisTemplate.setKeySerializer(new StringRedisSerializer());
    redisTemplate.setValueSerializer(genericJackson2JsonRedisSerializer);
    redisTemplate.setHashKeySerializer(genericJackson2JsonRedisSerializer);
    redisTemplate.setHashValueSerializer(genericJackson2JsonRedisSerializer);
    redisTemplate.afterPropertiesSet();

    return redisTemplate;
}

@Bean("redisTransactionTemplate")
public RedisTemplate<String, Object> redisTransactionTemplate() {
    RedisTemplate<String, Object> redisTransactionTemplate = new RedisTemplate<>();
    redisTransactionTemplate.setConnectionFactory(redis2ConnectionFactory());

    GenericJackson2JsonRedisSerializer genericJackson2JsonRedisSerializer = new GenericJackson2JsonRedisSerializer();
    redisTransactionTemplate.setKeySerializer(new StringRedisSerializer());
    redisTransactionTemplate.setValueSerializer(genericJackson2JsonRedisSerializer);
    redisTransactionTemplate.setHashKeySerializer(genericJackson2JsonRedisSerializer);
    redisTransactionTemplate.setHashValueSerializer(genericJackson2JsonRedisSerializer);
    redisTransactionTemplate.afterPropertiesSet();
    //开启事务
    redisTransactionTemplate.setEnableTransactionSupport(true);

    return redisTransactionTemplate;
}

@Bean
@Primary
public RedisConnectionFactory redis1ConnectionFactory() {
    RedisStandaloneConfiguration localhost = new RedisStandaloneConfiguration(redisProperties.getHost(), redisProperties.getPort());
    if(StrUtil.isNotEmpty(redisProperties.getPassword())){
        localhost.setPassword(redisProperties.getPassword());
    }
    if(Objects.nonNull(redisProperties.getDatabase())){
        localhost.setDatabase(redisProperties.getDatabase());
    }

    JedisClientConfiguration.JedisPoolingClientConfigurationBuilder jpb =
            (JedisClientConfiguration.JedisPoolingClientConfigurationBuilder) JedisClientConfiguration.builder();
    JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
    jedisPoolConfig.setMaxIdle(redisProperties.getMaxIdle());
    jedisPoolConfig.setMinIdle(redisProperties.getMinIdle());
    jedisPoolConfig.setMaxTotal(redisProperties.getMaxActive());
    jedisPoolConfig.setMaxWaitMillis(redisProperties.getMaxWait());
    jedisPoolConfig.setEvictorShutdownTimeoutMillis(redisProperties.getTimeout());
    jpb.poolConfig(jedisPoolConfig);

    return new JedisConnectionFactory(localhost,jpb.build());
}

@Bean
public RedisConnectionFactory redis2ConnectionFactory() {
    RedisStandaloneConfiguration localhost = new RedisStandaloneConfiguration(redisProperties.getHost(), redisProperties.getPort());
    if(StrUtil.isNotEmpty(redisProperties.getPassword())){
        localhost.setPassword(redisProperties.getPassword());
    }
    if(Objects.nonNull(redisProperties.getDatabase())){
        localhost.setDatabase(redisProperties.getDatabase());
    }

    JedisClientConfiguration.JedisPoolingClientConfigurationBuilder jpb =
            (JedisClientConfiguration.JedisPoolingClientConfigurationBuilder) JedisClientConfiguration.builder();
    JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
    jedisPoolConfig.setMaxIdle(redisProperties.getMaxIdle());
    jedisPoolConfig.setMinIdle(redisProperties.getMinIdle());
    jedisPoolConfig.setMaxTotal(redisProperties.getMaxActive());
    jedisPoolConfig.setMaxWaitMillis(redisProperties.getMaxWait());
    jedisPoolConfig.setEvictorShutdownTimeoutMillis(redisProperties.getTimeout());
    jpb.poolConfig(jedisPoolConfig);

    return new JedisConnectionFactory(localhost,jpb.build());
}

@Order(value = 1)
@Data
@Component
public class RedisProperties {
@Value("${spring.redis.host}")
private String host;

@Value("${spring.redis.port}")
private Integer port;

@Value("${spring.redis.password}")
private String password;

@Value("${spring.redis.database}")
private Integer database;

@Value("${spring.redis.timeout}")
private Integer timeout;

@Value("${spring.redis.lettuce.pool.max-idle}")
public Integer maxIdle;

@Value("${spring.redis.lettuce.pool.min-idle}")
public Integer minIdle;

@Value("${spring.redis.lettuce.pool.max-active}")
public Integer maxActive;

@Value("${spring.redis.lettuce.pool.max-wait}")
public Integer maxWait;

}

需要事务的注入

@Resource(name = "redisTransactionTemplate")

不需要事务的注入

@Resource(name = "redisTemplate")

事务完整执行流程

redisTransactionTemplate.multi();   //开启

redisTransactionTemplate.exec();  //执行

redisTransactionTemplate.discard();  //取消