1.导入Redis的依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId></dependency>
2.在application.properties中对redis进行相应的配置
#redis配置#Redis服务器地址spring.redis.host=127.0.0.1#Redis服务器连贯端口spring.redis.port=6379#Redis数据库索引(默认为0)spring.redis.database=0 #连接池最大连接数(应用负值示意没有限度)spring.redis.jedis.pool.max-active=50#连接池最大阻塞等待时间(应用负值示意没有限度)spring.redis.jedis.pool.max-wait=3000#连接池中的最大闲暇连贯spring.redis.jedis.pool.max-idle=20#连接池中的最小闲暇连贯spring.redis.jedis.pool.min-idle=2#连贯超时工夫(毫秒)spring.redis.timeout=5000
3.编写一个封装的Redis工具类不便对Redis缓存进行简略的操作
package com.example.demo.Util;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.redis.core.RedisTemplate;import org.springframework.stereotype.Component;@Componentpublic class RedisUtil { @Autowired private RedisTemplate<String,String> redisTemplate; /** * 读取缓存 * @param key * @return */ public String get(final String key){ return redisTemplate.opsForValue().get(key); } /** * 写入缓存 * @param key * @param value * @return */ public boolean set(final String key,String value){ boolean result = false; try { redisTemplate.opsForValue().set(key,value); result = true; } catch (Exception e){ e.printStackTrace(); } return result; } /** * 更新缓存 * @param key * @param value * @return */ public boolean update(final String key,String value){ boolean result = false; try { redisTemplate.opsForValue().getAndSet(key,value); result = true; } catch (Exception e){ e.printStackTrace(); } return result; } /** * 删除缓存 * @param key * @return */ public boolean delete(final String key){ boolean result = false; try { redisTemplate.delete(key); result = true; } catch (Exception e){ e.printStackTrace(); } return result; }}
4.编写测试类对操作后果进行测试
插入操作:
/*** 插入一个key为"username",value为"supper"的键值对*/@Testpublic void set(){ redisUtil.set("username","supper");}
运行后果:
127.0.0.1: 6379> get username"supper"
读取操作:
/*** 读取key为"username"的值*/@Testpublic void get(){ System.out.println(redisUtil.get("username"));}
运行后果:
supper
更新操作:
/*** 将key为"username"的键值对的值更新为"chen"*/@Testpublic void update(){ redisUtil.update("username","chen");}
运行后果:
127.0.0.1: 6379> get username"chen"
删除操作:
/*** 删除key为"username"的键值对*/@Testpublic void del(){ redisUtil.delete("username");}
运行后果:
127.0.0.1: 6379> get username(nil)