Redis_基础

Redis 命令启动、配置密码

Redis是绿色软件，所以直接解压就能使用 配置文件为：redis.windows.conf 启动redis 服务：

redis-server.exe redis.windows.conf

启动客户端：

redis-cli.exe

默认没有给Redis配置密码，所以在配置文件中配置密码

将密码设置为123456 # requirepass foobared改成 requirepass 123456

重新启动服务端，登录客户端的时候加上 -a 密码来登录；项目中就不用密码了

redis-server.exe redis.windows.conf -h localhost -p 6379 -a 123456 存放数据类型

Redis常用命令 String

SETEX为验证码场景 SETNX集群互斥

哈希

列表

集合

有序集合

通用命令

在Spring中使用Redis 导入坐标、配置数据源、配置类

redis实际上是创建了16个数据库，互相隔离；这里写索引为0-15

操作String类型数据

使用注入的RedisTemplate

注意代码中使用的函数不是以之前命令的名称进行命名的

我们之前使用了String的序列化器，那么在redis的客户端中，key是没有乱码的；但是值有乱码；

Hash操作

列表（list）类数据： @Test public void testList(){ //Lpush lrange rpop llen ListOperations listOperations = redisTemplate.opsForList(); listOperations.leftPushAll("mylist","a","b","c"); //lpush多个value listOperations.leftPush("mylist","d"); //lpush单个value List mylist = listOperations.range("mylist",0,-1); //lrange System.out.println(mylist); listOperations.rightPop("mylist"); //rpop Long size = listOperations.size("mylist"); //llen System.out.println(size); } 集合类数据： @Test public void testSet(){ //sadd smembers scard sinter sunion srem SetOperations setOperations = redisTemplate.opsForSet(); setOperations.add("set1","a","b","c","d"); //sadd setOperations.add("set2","a","b","x","y"); Set members = setOperations.members("set1"); //smembers System.out.println(members); Long size = setOperations.size("set1"); //scard System.out.println(size); Set intersect = setOperations.intersect("set1","set2"); //sinter取交集 System.out.println(intersect); Set union = setOperations.union("set1","set2"); //sunion取并集 System.out.println(union); setOperations.remove("set1","a","b"); //srem } 有序集合类数据： @Test public void testZset(){ //zadd zrange zincrby zrem ZSetOperations zSetOperations = redisTemplate.opsForZSet(); zSetOperations.add("zset1","a",10); //zadd zSetOperations.add("zset2","b",12); zSetOperations.add("zset1","c",9); Set zset1 = zSetOperations.range("zset1",0,-1); //zrange System.out.println(zset1); zSetOperations.incrementScore("zset1","c",10); //zincrby zSetOperations.remove("zset1","a","b"); //zrem } 通用命令 @Test public void testCommon(){ //keys exists type del Set keys = redisTemplate.keys("*"); //keys System.out.println(keys); Boolean name = redisTemplate.hasKey("name"); //exists Boolean set1 = redisTemplate.hasKey("set1"); for(Object key : keys){ DataType type = redisTemplate.type(key); //type System.out.println(type.name()); } redisTemplate.delete("mylist"); //del }