Redis 是一个基于内存的key-value的结构数据库
适合存储热点数据
Macos安装Redis
https://redis.io/docs/getting-started/installation/install-redis-on-mac-os/
安装redis
brew install redis
查看安装信息:
brew info redis
前台启动redis:
redis-server
后台启动redis:
brew services start redis
查看信息:
brew services info redis
停止:
brew services stop redis
配置
打开/opt/homebrew/etc/redis.conf
配置文件
修改密码文章来源:https://www.toymoban.com/news/detail-740018.html
requirepass 123456
登录redis文章来源地址https://www.toymoban.com/news/detail-740018.html
redis-cli -h localhost -p 6379 -a 123456
数据结构
字符串
SET key value #设置
GET key #获取
SETEX key seconds value #设置指定key过期时间,单位s
SETNX key vvalue 只有在key不存在时才设置
哈希
HSET key fiele value 将key设置为value
HGET key field 获取
HDEL key field 删除
HKEYS key 获取所有字段
HVALS key 获取所有值
列表
LPUSH key value1[value2] 插入到头部 左侧
LRANGE key start stop 获取指定范围达到元素
RPOP key 移除并获取列表最后一个元素 右侧
LLEN key 获取列表长度
集合
SADD key number1 [number2] 插入一个成员
SMEMBERS key 返回集合中所有成员
SCARD key 获取成员数
SINTER key1[key2] 返回定义所哟集合的交集
SUNION key1 [key2] 返回所有集合的并集
SREM key number1[numer2] 删除集合中成员
有序集合
ZADD key score1 member1 [score2 member2] 向有序集合添加一个成员
ZRANGE key start stop [WITHSCORES] 通过索引区间返回有序集合指定区间内的成员
ZINCRBY key increment member 对指定成员分数加上增量increment
ZREM key member [member..] 删除成员
通用命令
KEYS pattern 查找所有符合给定模式的key
EXISTS key 检查给定key是否存在
TYPE key 返回key 所存储的值的类型
DEL key 在key存在时删除key
SpringBoot中使用Redis
导入依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
配置Redis
spring:
redis:
host: localhost
port: 6379
password: 123456
database: 0
编写配置类
@Slf4j
@Configuration
public class RedisConfiguration {
@Bean
public RedisTemplate redisTemplate(RedisConnectionFactory redisConnectionFactory) {
RedisTemplate redisTemplate = new RedisTemplate<>();
// 设置redis连接工厂
redisTemplate.setConnectionFactory(redisConnectionFactory);
// 设置redis的String/Value的默认序列化方式
redisTemplate.setKeySerializer(new StringRedisSerializer());
log.info("RedisTemplate注入成功");
return redisTemplate;
}
}
使用Redis
@SpringBootTest
class RedisConfigurationTest {
@Autowired
private RedisTemplate redisTemplate;
@Test
public void testString() {
ValueOperations valueOperations = redisTemplate.opsForValue();
valueOperations.set("name", "cxk");
String name = (String) valueOperations.get("name");
System.out.println(name);
valueOperations.set("code", "1234", 3, TimeUnit.HOURS); //3小时后过期
valueOperations.setIfAbsent("code1", "1234"); //如果不存在则设置
}
@Test
public void testHash() {
HashOperations hashOperations = redisTemplate.opsForHash();
hashOperations.put("user", "name", "cxk");
hashOperations.put("user", "age", "18");
String name = (String) hashOperations.get("user", "name");
System.out.println(name);
Set user = hashOperations.keys("user");
System.out.println(user);
List user1 = hashOperations.values("user");
System.out.println(user1);
hashOperations.delete("user", "name");
}
@Test
public void testList() {
ListOperations listOperations = redisTemplate.opsForList();
listOperations.leftPushAll("list", "a", "b", "c");
listOperations.leftPush("list", "d");
List list = listOperations.range("list", 0, -1);
System.out.println(list);
listOperations.rightPop("list");
Long size = listOperations.size("list");
System.out.println(size);
}
@Test
public void testSet() {
SetOperations setOperations = redisTemplate.opsForSet();
setOperations.add("set", "a", "b", "c", "d", "e");
Set set = setOperations.members("set");
System.out.println(set);
setOperations.remove("set", "a", "b");
set = setOperations.members("set");
System.out.println(set);
setOperations.add("set2", "a", "b", "c", "d", "e");
Set union = setOperations.union("set", "set2");
Set intersect = setOperations.intersect("set", "set2");
Set difference = setOperations.difference("set", "set2");
System.out.println(union);
System.out.println(intersect);
System.out.println(difference);
}
@Test
public void testZset(){
ZSetOperations zSetOperations = redisTemplate.opsForZSet();
zSetOperations.add("zset", "a", 1);
zSetOperations.add("zset", "b", 2);
zSetOperations.add("zset", "c", 3);
Set zset = zSetOperations.range("zset", 0, -1);
System.out.println(zset);
zSetOperations.incrementScore("zset", "a", 1);
zSetOperations.remove("zset", "a");
}
@Test
public void testCommon(){
Set keys = redisTemplate.keys("*");
System.out.println(keys);
Boolean name = redisTemplate.hasKey("name");
for (Object key : keys) {
DataType type = redisTemplate.type(key);
System.out.println(type.name());
}
redisTemplate.delete("name");
}
}
到了这里,关于Macos下安装使用Redis的文章就介绍完了。如果您还想了解更多内容,请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章,希望大家以后多多支持TOY模板网!