Redis在springboot中的使用教程

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

spring:
redis:
  open: true # 是否开启redis缓存 true开启  false关闭
  database: 0
  host: 47.104.208.124
  port: 6378
  password: lf.1228  # 密码（默认为空）
  timeout: 6000 # 连接超时时长（毫秒）
  pool:
    max-active: 1000 # 连接池最大连接数（使用负值表示没有限制）
    max-wait: -1   # 连接池最大阻塞等待时间（使用负值表示没有限制）
    max-idle: 10   # 连接池中的最大空闲连接
    min-idle: 5    # 连接池中的最小空闲连接

@Configuration
public class RedisConfig {
  @Autowired
  private RedisConnectionFactory factory;
  @Bean
  public RedisTemplate<String, Object> redisTemplate() {
    RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
    redisTemplate.setKeySerializer(new StringRedisSerializer());
    redisTemplate.setHashKeySerializer(new StringRedisSerializer());
    redisTemplate.setHashValueSerializer(new StringRedisSerializer());
    redisTemplate.setValueSerializer(new StringRedisSerializer());
    redisTemplate.setConnectionFactory(factory);
    return redisTemplate;
  }
  @Bean
  public HashOperations<String, String, Object> hashOperations(RedisTemplate<String, Object> redisTemplate) {
    return redisTemplate.opsForHash();
  }
  @Bean
  public ValueOperations<String, String> valueOperations(RedisTemplate<String, String> redisTemplate) {
    return redisTemplate.opsForValue();
  }
  @Bean
  public ListOperations<String, Object> listOperations(RedisTemplate<String, Object> redisTemplate) {
    return redisTemplate.opsForList();
  }
  @Bean
  public SetOperations<String, Object> setOperations(RedisTemplate<String, Object> redisTemplate) {
    return redisTemplate.opsForSet();
  }
  @Bean
  public ZSetOperations<String, Object> zSetOperations(RedisTemplate<String, Object> redisTemplate) {
    return redisTemplate.opsForZSet();
  }
}

@Component
public class RedisUtils {
  @Autowired
  private RedisTemplate<String, Object> redisTemplate;
  @Autowired
  private ValueOperations<String, String> valueOperations;
  @Autowired
  private HashOperations<String, String, Object> hashOperations;
  @Autowired
  private ListOperations<String, Object> listOperations;
  @Autowired
  private SetOperations<String, Object> setOperations;
  @Autowired
  private ZSetOperations<String, Object> zSetOperations;
  /** 默认过期时长，单位：秒 */
  public final static long DEFAULT_EXPIRE = 60 * 60 * 24;
  /** 不设置过期时长 */
  public final static long NOT_EXPIRE = -1;
  private final static Gson gson = new Gson();
  public void set(String key, Object value, long expire){
    valueOperations.set(key, toJson(value));
    if(expire != NOT_EXPIRE){
      redisTemplate.expire(key, expire, TimeUnit.SECONDS);
    }
  }
  public void set(String key, Object value){
    set(key, value, DEFAULT_EXPIRE);
  }
  public <T> T get(String key, Class<T> clazz, long expire) {
    String value = valueOperations.get(key);
    if(expire != NOT_EXPIRE){
      redisTemplate.expire(key, expire, TimeUnit.SECONDS);
    }
    return value == null ? null : fromJson(value, clazz);
  }
  public <T> T get(String key, Class<T> clazz) {
    return get(key, clazz, NOT_EXPIRE);
  }
  public String get(String key, long expire) {
    String value = valueOperations.get(key);
    if(expire != NOT_EXPIRE){
      redisTemplate.expire(key, expire, TimeUnit.SECONDS);
    }
    return value;
  }
  public String get(String key) {
    return get(key, NOT_EXPIRE);
  }
  public void delete(String key) {
    redisTemplate.delete(key);
  }
  /**
   * Object转成JSON数据
   */
  private String toJson(Object object){
    if(object instanceof Integer || object instanceof Long || object instanceof Float ||
        object instanceof Double || object instanceof Boolean || object instanceof String){
      return String.valueOf(object);
    }
    return gson.toJson(object);
  }
  /**
   * JSON数据，转成Object
   */
  private <T> T fromJson(String json, Class<T> clazz){
    return gson.fromJson(json, clazz);
  }
}