<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-data-redis</artifactId>
 <version>2.2.0.RELEASE</version>
</dependency>

package com.cbsd.util;
import java.util.concurrent.TimeUnit;
 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.ListOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.SetOperations;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.data.redis.core.ZSetOperations;
import org.springframework.stereotype.Component;
 
import com.alibaba.fastjson.JSON;
 
/**
 * redisTemplate封装
 *
 * @author gxp
 */
@Component
public class RedisUtil {
	// private Logger logger = LoggerFactory.getLogger(this.getClass());
 @Autowired
 private RedisTemplate<String, Object> redisTemplate;
 @Autowired
 private ValueOperations<String, String> valueOperations;
 @SuppressWarnings("unused")
 @Autowired
 private HashOperations<String, String, Object> hashOperations;
 @SuppressWarnings("unused")
 @Autowired
 private ListOperations<String, Object> listOperations;
 @SuppressWarnings("unused")
 @Autowired
 private SetOperations<String, Object> setOperations;
 @SuppressWarnings("unused")
	@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;
 
 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 JSON.toJSONString(object);
 }
 
 /**
 * JSON数据，转成Object
 */
 private <T> T fromJson(String json, Class<T> clazz){
 return JSON.parseObject(json, clazz);
 }
}

spring: 
 redis:
 open: true # 是否开启redis缓存 true开启 false关闭
 database: 0
 host: redis服务器地址
 port: redis服务器端口号
 password: redis服务器密码 # 密码（默认为空）
 timeout: 15000 # 连接超时时长（毫秒）
 jedis:
 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

#### 连接redis非关系型数据库配置
spring.redis.host=redis服务器地址
spring.redis.password=redis服务器密码，默认为空
spring.redis.port=redis服务器端口号
spring.redis.timeout=20000 //超时时间
spring.redis.database=6
spring.redis.lettuce.pool.min-idle=0
spring.redis.lettuce.pool.max-idle=3000
spring.redis.lettuce.pool.max-wait=10000
spring.redis.lettuce.pool.max-active=3000

 /**
 * 
 * @param key 同理map的key，可以根据对应的key取到对应的值
 * @param value 要存入redis的数据
 * @param expire 超时时间，就是数据会在redis里面存多久，可以不传，就是永不超时
 */
 public void set(String key, Object value, long expire){
 	
 valueOperations.set(key, toJson(value));
 if(expire != NOT_EXPIRE){
 redisTemplate.expire(key, expire, TimeUnit.SECONDS);
 }
 }

 /**
 * 
 * @param key 存入数据时，设置的key，根据可以取到对应的数据
 * @return
 */ 
 public String get(String key) {
 return get(key, NOT_EXPIRE);
 }