Spring Boot中使用Redis实战案例

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
    <exclusions>
        <exclusion>
            <groupId>io.lettuce</groupId>
            <artifactId>lettuce-core</artifactId>
        </exclusion>
    </exclusions>
</dependency>

<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
</dependency>

# Redis 连接配置
# 单机 Redis
spring.redis.host=127.0.0.1
spring.redis.port=6379
# 连接池配置
spring.redis.jedis.pool.max-idle=30
spring.redis.jedis.pool.max-total=50
spring.redis.jedis.pool.max-wait=2000ms

@Configuration
public class RedisConfig {
    private RedisConnectionFactory connectionFactory = null;
 
    @Bean
    public RedisConnectionFactory initRedisConnectionFactory(){
        if(connectionFactory!=null){
            return connectionFactory;
        }
        JedisPoolConfig poolConfig =new JedisPoolConfig();
        //最大空闲数
        poolConfig.setMaxIdle(30);
        //最大连接数
        poolConfig.setMaxTotal(50);
        //最大等待毫秒数
        poolConfig.setMaxWaitMillis(2000);
        //创建Jedis连接工厂
        JedisConnectionFactory connectionFactory=new JedisConnectionFactory(poolConfig);
        //获取单机的redis配置，如果是集群的话用集群配置类
        RedisStandaloneConfiguration rscfg=connectionFactory.getStandaloneConfiguration();
        connectionFactory.setHostName("127.0.0.1");
        connectionFactory.setPort(6379);
        return connectionFactory;
    }
}

@Bean
public RedisTemplate<Object,Object> initRedisTemplate(){
  RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>();
  redisTemplate.setDefaultSerializer(new StringRedisSerializer());
  return redisTemplate;
}

import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.ListOperations;
import org.springframework.data.redis.core.SetOperations;
import org.springframework.data.redis.core.ZSetOperations;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
 
@Service
public class RedisService {
 
    @Autowired
    private RedisTemplate<String, Object> redisTemplate;
    
    @Autowired
    private StringRedisTemplate stringRedisTemplate;
 
    public void setString(String key, String value) {
        stringRedisTemplate.opsForValue().set(key, value);
    }
 
    public String getString(String key) {
        return stringRedisTemplate.opsForValue().get(key);
    }
 
    public void setHash(String key, String hashKey, Object value) {
        HashOperations<String, String, Object> hashOps = redisTemplate.opsForHash();
        hashOps.put(key, hashKey, value);
    }
 
    public Object getHash(String key, String hashKey) {
        HashOperations<String, String, Object> hashOps = redisTemplate.opsForHash();
        return hashOps.get(key, hashKey);
    }
 
    public void setList(String key, Object value) {
        ListOperations<String, Object> listOps = redisTemplate.opsForList();
        listOps.rightPush(key, value);
    }
 
    public Object getList(String key, long index) {
        ListOperations<String, Object> listOps = redisTemplate.opsForList();
        return listOps.index(key, index);
    }
 
    public void setSet(String key, Object value) {
        SetOperations<String, Object> setOps = redisTemplate.opsForSet();
        setOps.add(key, value);
    }
 
    public Object getSet(String key) {
        SetOperations<String, Object> setOps = redisTemplate.opsForSet();
        return setOps.members(key);
    }
 
    public void setZSet(String key, Object value, double score) {
        ZSetOperations<String, Object> zsetOps = redisTemplate.opsForZSet();
        zsetOps.add(key, value, score);
    }
 
    public Object getZSet(String key, long start, long end) {
        ZSetOperations<String, Object> zsetOps = redisTemplate.opsForZSet();
        return zsetOps.range(key, start, end);
    }
 
}

@Autowired
private RedisTemplate<String, String> redisTemplate;
 
public void transactionalOperation() {
    // 开启 Redis 事务
    redisTemplate.multi();
 
    try {
        // 执行多个 Redis 命令
        redisTemplate.opsForValue().set("key1", "value1");
        redisTemplate.opsForValue().set("key2", "value2");
 
        // 提交事务
        redisTemplate.exec();
    } catch (Exception e) {
        // 回滚事务
        redisTemplate.discard();
    }
}