有了域名如何做网站,做网站会很忙吗,开发软件下载,大气的网站设计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#xff1a;
brew info redis前台启动redis:
redis-server后台启…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
requirepass 123456登录redis
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keySpringBoot中使用Redis
导入依赖
dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-data-redis/artifactId
/dependency配置Redis
spring:redis:host: localhostport: 6379password: 123456database: 0编写配置类
Slf4j
Configuration
public class RedisConfiguration {Beanpublic 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 {Autowiredprivate RedisTemplate redisTemplate;Testpublic 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}Testpublic 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);}Testpublic 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);}Testpublic 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);}Testpublic 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);}Testpublic 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);}
}
