1、Maven依赖
2、application.yml配置redis
spring:
# redis 相关
redis:
database: 0 # Redis数据库索引（默认为0）
host: 127.0.0.1 # Redis服务器地址
port: 6379 # Redis服务器连接端口
password: # Redis服务器连接密码（默认为空）
timeout: 8000 # 连接超时时间（毫秒）
lettuce:
pool:
max-active: 8
max-idle: 8
max-wait: -1
min-idle: 0
db-redis:
host: 127.0.0.1
port: 6380
database: 0
password:
lettuce:
pool:
max-active: 16
max-wait: 100
max-idle: 8
min-idle: 4
cache-redis:
host: 127.0.0.1
port: 6379
database: 0
password:
lettuce:
pool:
max-active: 16
max-wait: 100
max-idle: 8
min-idle: 4
3、RedisTemplateConfig配置
@EnableCaching
@Configuration
public class RedisTemplateConfig {
@Primary
@Bean(name ="dbLettuceConnectionFactory")
@ConditionalOnBean(name ="dbRedisConfig")
public LettuceConnectionFactorydbLettuceConnectionFactory(RedisStandaloneConfiguration dbRedisConfig, GenericObjectPoolConfig dbPoolConfig) {
LettuceClientConfiguration clientConfig = LettucePoolingClientConfiguration.builder().commandTimeout(Duration.ofMillis(5000)).poolConfig(dbPoolConfig).build();
return new LettuceConnectionFactory(dbRedisConfig, clientConfig);
}
@Primary
@Bean(name ="dbRedisTemplate")
@ConditionalOnBean(name ="dbLettuceConnectionFactory")
public StringRedisTemplatedbRedisTemplate(@Qualifier("dbLettuceConnectionFactory") LettuceConnectionFactory dbLettuceConnectionFactory) {
StringRedisTemplate redisTemplate =new StringRedisTemplate();
StringRedisSerializer stringRedisSerializer =new StringRedisSerializer();
redisTemplate.setKeySerializer(stringRedisSerializer);
redisTemplate.setValueSerializer(stringRedisSerializer);
redisTemplate.setConnectionFactory(dbLettuceConnectionFactory);
redisTemplate.afterPropertiesSet();
return redisTemplate;
}
@Configuration
@ConditionalOnProperty(name ="host", prefix ="spring.db-redis")
public static class DbRedisConfig {
@Value("${spring.db-redis.host:127.0.0.1}")
private Stringhost;
@Value("${spring.db-redis.port:6379}")
private Integerport;
@Value("${spring.db-redis.password:}")
private Stringpassword;
@Value("${spring.db-redis.database:0}")
private Integerdatabase;
@Value("${spring.db-redis.lettuce.pool.max-active:8}")
private IntegermaxActive;
@Value("${spring.db-redis.lettuce.pool.max-idle:8}")
private IntegermaxIdle;
@Value("${spring.db-redis.lettuce.pool.max-wait:-1}")
private LongmaxWait;
@Value("${spring.db-redis.lettuce.pool.min-idle:0}")
private IntegerminIdle;
@Bean
public GenericObjectPoolConfigdbPoolConfig() {
GenericObjectPoolConfig config =new GenericObjectPoolConfig();
config.setMaxTotal(maxActive);
config.setMaxIdle(maxIdle);
config.setMinIdle(minIdle);
config.setMaxWaitMillis(maxWait);
return config;
}
@Bean(name ="dbRedisConfig")
public RedisStandaloneConfigurationdbRedisConfig() {
RedisStandaloneConfiguration config =new RedisStandaloneConfiguration();
config.setHostName(host);
config.setPassword(RedisPassword.of(password));
config.setPort(port);
config.setDatabase(database);
return config;
}
}
@Bean(name ="cacheLettuceConnectionFactory")
@ConditionalOnBean(name ="cacheRedisConfig")
public LettuceConnectionFactorycacheLettuceConnectionFactory(RedisStandaloneConfiguration cacheRedisConfig, GenericObjectPoolConfig cachePoolConfig) {
LettuceClientConfiguration clientConfig = LettucePoolingClientConfiguration.builder().commandTimeout(Duration.ofMillis(5000)).poolConfig(cachePoolConfig).build();
return new LettuceConnectionFactory(cacheRedisConfig, clientConfig);
}
@Bean(name ="cacheRedisTemplate")
@ConditionalOnBean(name ="cacheLettuceConnectionFactory")
public StringRedisTemplatecacheRedisTemplate(@Qualifier("cacheLettuceConnectionFactory") LettuceConnectionFactory cacheLettuceConnectionFactory) {
StringRedisTemplate redisTemplate =new StringRedisTemplate();
StringRedisSerializer stringRedisSerializer =new StringRedisSerializer();
redisTemplate.setKeySerializer(stringRedisSerializer);
redisTemplate.setValueSerializer(stringRedisSerializer);
redisTemplate.setConnectionFactory(cacheLettuceConnectionFactory);
redisTemplate.afterPropertiesSet();
return redisTemplate;
}
@Configuration
@ConditionalOnProperty(name ="host", prefix ="spring.cache-redis")
public static class CacheRedisConfig {
@Value("${spring.cache-redis.host:127.0.0.1}")
private Stringhost;
@Value("${spring.cache-redis.port:6379}")
private Integerport;
@Value("${spring.cache-redis.password:}")
private Stringpassword;
@Value("${spring.cache-redis.database:0}")
private Integerdatabase;
@Value("${spring.cache-redis.lettuce.pool.max-active:8}")
private IntegermaxActive;
@Value("${spring.cache-redis.lettuce.pool.max-idle:8}")
private IntegermaxIdle;
@Value("${spring.cache-redis.lettuce.pool.max-wait:-1}")
private LongmaxWait;
@Value("${spring.cache-redis.lettuce.pool.min-idle:0}")
private IntegerminIdle;
@Bean
public GenericObjectPoolConfigcachePoolConfig() {
GenericObjectPoolConfig config =new GenericObjectPoolConfig();
config.setMaxTotal(maxActive);
config.setMaxIdle(maxIdle);
config.setMinIdle(minIdle);
config.setMaxWaitMillis(maxWait);
return config;
}
@Bean(name ="cacheRedisConfig")
public RedisStandaloneConfigurationcacheRedisConfig() {
RedisStandaloneConfiguration config =new RedisStandaloneConfiguration();
config.setHostName(host);
config.setPassword(RedisPassword.of(password));
config.setPort(port);
config.setDatabase(database);
return config;
}
}
}
4、创建RedisBDUtil和RedisCacheUtil（我用了两个redis源分别作为持久数据库和缓存库），分别注入声明的dbRedisTemplate和cacheRedisTemplate
RedisUtils操作太多了只截取了部分，主要展示通过@Qualifier注入了不同的RedisTemplate
@Component
public class RedisDBUtils {
@Autowired
@Qualifier("dbRedisTemplate")
private StringRedisTemplatedbRedisTemplate;
/** 默认过期时长，单位：秒 */
public final static long DEFAULT_EXPIRE =60 *60 *24 *10;
/** 不设置过期时长 */
public final static long NOT_EXPIRE = -1;
/** -------------------key相关操作--------------------- */
/**
* 删除key
*
* @param key
*/
public void delete(String key) {
dbRedisTemplate.delete(key);
}
}
@Component
public class RedisCacheUtils {
@Autowired
@Qualifier("cacheRedisTemplate")
private StringRedisTemplatecacheRedisTemplate;
/** -------------------key相关操作--------------------- */
/**
* 删除key
*
* @param key
*/
public void delete(String key) {
cacheRedisTemplate.delete(key);
}
/**
* 批量删除key
*
* @param keys
*/
public void delete(Collection keys) {
cacheRedisTemplate.delete(keys);
}
}
5、Controller中的使用
根据个人需要各自注入，然后就可以分别操作不同的redis库了
@Autowired
private RedisDBUtils redisDBUtils;
@Autowired
private RedisCacheUtils redisCacheUtils;