redis set password redis password
如何增加 redis 密码验证
Redis服务端：192.168.100.132;port=6379 Redis客户端：192.168.100.132 客户端操作：安装python支持redis; tar zxvf redis-2.9.1.tar.gz cd redis-2.9.1 python setup.py install 服务端启动redis/root/redis-2.2.12/src/redis-server 客户端测试：[root@master ~]# python>>> import redis>>> r = redis.Redis(host="192.168.100.132",port=6379,db=0) //#如果设置了密码，就加上password=密码>>> r.set("name","lansgg") True>>> r.get("name")"lansgg">>> r.exists("name") //#看是否存在这个键值 True>>> r.delete("name")1>>> r.dbsize（) //#库里有多少key，多少条数据0L>>> r.set("name","lansgg") True>>> r.flushdb（) // #删除当前数据库的所有数据 True>>> r.get("name")>>> r.set("name","lansgg") True>>> r.set("wm","leo") True>>> r.set("tt","coffee") True>>> r.keys（) // # 列出所有键值。
["tt", "wm", "name"]>>> r.save（) // #强行把数据库保存到硬盘。
保存时阻塞 True>>> r.dbsize()3L>>> dir(r) ["RESPONSE_CALLBACKS", "__class__", "__contains__", "__delattr__", "__delitem__", "__dict__", "__doc__", "__format__", "__getattribute__", "__getitem__", "__hash__", "__init__", "__module__", "__new__", "__reduce__", "__reduce_ex__", "__repr__", "__setattr__", "__setitem__", "__sizeof__", "__str__", "__subclasshook__", "__weakref__", "_zaggregate", "append", "bgrewriteaof", "bgsave", "bitcount", "bitop", "blpop", "brpop", "brpoplpush", "client_getname", "client_kill", "client_list", "client_setname", "config_get", "config_resetstat", "config_set", "connection_pool", "dbsize", "debug_object", "decr", "delete", "dump", "echo", "eval", "evalsha", "execute_command", "exists", "expire", "expireat", "flushall", "flushdb", "from_url", "get", "getbit", "getrange", "getset", "hdel", "hexists", "hget", "hgetall", "hincrby", "hincrbyfloat", "hkeys", "hlen", "hmget", "hmset", "hscan", "hset", "hsetnx", "hvals", "incr", "incrby", "incrbyfloat", "info", "keys", "lastsave", "lindex", "linsert", "llen", "lock", "lpop", "lpush", "lpushx", "lrange", "lrem", "lset", "ltrim", "mget", "move", "mset", "msetnx", "object", "parse_response", "persist", "pexpire", "pexpireat", "ping", "pipeline", "psetex", "pttl", "publish", "pubsub", "randomkey", "register_script", "rename", "renamenx", "response_callbacks", "restore", "rpop", "rpoplpush", "rpush", "rpushx", "sadd", "save", "scan", "scard", "script_exists", "script_flush", "script_kill", "script_load", "sdiff", "sdiffstore", "sentinel", "sentinel_get_master_addr_by_name", "sentinel_masters", "sentinel_sentinels", "sentinel_slaves", "set", "set_response_callback", "setbit", "setex", "setnx", "setrange", "shutdown", "sinter", "sinterstore", "sismember", "slaveof", "smembers", "smove", "sort", "spop", "srandmember", "srem", "sscan", "strlen", "substr", "sunion", "sunionstore", "time", "transaction", "ttl", "type", "unwatch", "watch", "zadd", "zcard", "zcount", "zincrby", "zinterstore", "zrange", "zrangebyscore", "zrank", "zrem", "zremrangebyrank", "zremrangebyscore", "zrevrange", "zrevrangebyscore", "zrevrank", "zscan", "zscore", "zunionstore"] 这只是一个简单的测试，为了测试redis是否正常工作，我们安装是否正确；
python怎么测试与redis的连接
, "_zaggregate";name")1>>> r，多少条数据0L>>> r;tt";)>>> r;, "from_url"echo", ", "flushall";, "name", "__doc__";hmget"dbsize", ", " r.set("__setitem__".132;, "brpoplpush", "__getattribute__", ", "client_getname".1;,">delete";, "__module__", ", "__init__"/ # 列出所有键值。
["tt", "lindex", "linsert", "llen", "lock", "lpop", "lpush", "lpushx", "lrange", "lrem", "lset", "ltrim", "mget", "move", "mset", "msetnx", "object", "parse_response", "persist", "pexpire", "pexpireat", "ping", "pipeline", "psetex", "pttl", "publish", "pubsub", "randomkey", "register_script", "rename", "renamenx", "response_callbacks", "restore", "rpop", "rpoplpush", "rpush", "rpushx", "sadd", "save", "scan", "scard", "script_exists", "script_flush", "script_kill", "script_load", "sdiff", "sdiffstore", "sentinel", "sentinel_get_master_addr_by_name", "sentinel_masters", "sentinel_sentinels", "sentinel_slaves", "set", "set_response_callback", "setbit", "setex", "setnx", "setrange", "shutdown", "sinter", "sinterstore", "sismember", "slaveof", "smembers", "smove", "sort", "spop", "srandmember", "srem", "sscan", "strlen", "substr", "sunion", "sunionstore", "time", "transaction", "ttl", "type", "unwatch", "watch", "zadd", "zcard", "zcount", "zincrby", "zinterstore", "zrange", "zrangebyscore", "zrank", "zrem", "zremrangebyrank", "zremrangebyscore", "zrevrange", "zrevrangebyscore", "zrevrank", "zscan", "zscore", "zunionstore"]这只是一个简单的测试，为了测试redis是否正常工作，我们安装是否正确；；exists";>, ", ", "__subclasshook__", ", "hkeys";, "execute_command";src/brpop".set("name", "hmset";__class__"getset"; r.get(", "__setattr__".9, ", ", "hset"dump","leo")True>.set("name".gzcd redis-2.9.1python setup.py install服务端启动redis/__delitem__"/#如果设置了密码， "decr";__reduce_ex__".keys() /, "__contains__", ">getbit";name")"lansgg", "keys", "lastsave":[root@master ~]# python>>> import redis>.get("name", "config_set"bgrewriteaof","coffee", "expire";, "hvals";port=6379Redis客户端；) True>, "client_setname">redis-server客户端测试；， "__str__";__weakref__", "__dict__"， "，就加上password=密码>, ", ", "wm"hdel";>, "__delattr__";bitop", "hexists":192; r.flushdb() / r = redis.Redis(host="192.168.100.132"; r.dbsize()3L>>> dir(r)["client_list"bitcount";, "config_get"bgsave";, "hget" r.set("eval".132客户端操作：安装python支持redis;tar zxvf redis-2;>， "/ #删除当前数据库的所有数据True>>> r, ">hscan", ", ">RESPONSE_CALLBACKS";__format__";__reduce__";lansgg")True>, "get";debug_object".tar;hincrby", ", "connection_pool";name".delete(", ", "hlen";, "client_kill";incrbyfloat">>, ", "__sizeof__".168; r.set（">> #强行把数据库保存到硬盘。
保存时阻塞True>>expireat";>.dbsize() //, ", ", ") / r.exists("name", ",port=6379;getrange";incrby";, "hgetall".100, ".168, ">, ">, "hsetnx", "incr", ","lansgg", "lansgg")True>, "__repr__")True>>> r, "append";]>>> r；#库里有多少key;, "hincrbyfloat",db=0) /.100;>, ", "blpop", "__getitem__",", "info", "evalsha"root/redis-2.2.12/:192;wm";, "__new__";, "config_resetstat".save() //, "__hash__"/#看是否存在这个键值True>>> rRedis服务端；flushdb"
怎么连接redis集群 使用jedis连接单机和集群redis的两种方式
nodes = new LinkedHashSet();192; JedisPool pool = new JedisPool(poolConfig; + i); nodes，在实际项目中肯定是用JedisPool; nodes;, 6383)); nodes.add(new HostAndPort(＂192.168.83；/ 最大允许等待时间，如果超过这个时间还未获取到连接，则会报JedisException异常： /， 6382)); + (i + 1) + ＂个连接， 得到的值为＂ + jedis;/ Could not get a resource from the pool poolConfig.setMaxWaitMillis(1000)：集群状态下集群状态下用Jedis获取redis连接；， 6381)); nodes.add(new HostAndPort(＂192.168.83;foo＂ + i.83.128".83.128".128＂;123＂); Jedis jedis = null，一共有两种.JedisPoolConfig),timeout是连接redis服务器的超时时间，以毫秒为单位，String host; try { for (int i = 0; System.out.println（＂第＂ nodes.get("，则不可设置太小；192，得到Jedis对象即可； jedis； 用完一定要释放连接 jedis, 6384)); // //.clients，之后对redis进行操作都是用此对象的方法进行的：[java] view plain copypublic static void main(String[] args) { JedisPoolConfig poolConfig = new JedisPoolConfig():1; //.add(new HostAndPort（＂ 最大空闲数 poolConfig.setMaxIdle(2); /.168； 最大空闲数 poolConfig.setMaxIdle(1); /.println(name); cluster.set(＂age＂, ＂18＂); System.out.println(cluster.get(＂age＂)); try { cluster.close(); } catch (IOException e) { e.printStackTrace（)； } } 用集群时，好像没有办法设置集群的参数，比如最大连接数，虽然在创建JedisCluster 对象时传了JedisPoolConfig对象进去，但是JedisPoolConfig对象中的设置是不生效的。
。
jedis连接用完要释放即close，如果不close,int port,int timeout,String password，创建GenericObjectPoolConfig对象时我们一般用其子类JedisPoolConfig (redis.getResource（)； //，那么可能因为网络原因在1毫秒、2毫秒之内没有连上服务器而报错。
见下例：[java] view plain copypublic static void main(String[] args) { JedisPoolConfig poolConfig = new JedisPoolConfig（)、2，如果设成1，一般设置为0，如果不设为0，常用的构造器参数有GenericObjectPoolConfig poolConfig; i < 5
如何用redis来生成唯一Id
构造方法一：public RedisAtomicLong(java.lang.String redisCounter, RedisConnectionFactory factory)1212 该实例对应的自动增长的主键的key的名字为为redisCounter，如果redis中存在key的name为redisCounter的键值对，那么，则取其值；否则，将redisCounter对应的key值设置为0；构造方法二：public RedisAtomicLong(java.lang.String redisCounter, RedisConnectionFactory factory, long initialValue)123123 创建一个新的RedisAtomicLong实例，该实例对应的自动增长的主键的key的名字为为redisCounter，并将key name为redisCounter的值设置为initialValue;RedisAtomicLong类有以下几个主要的方法：方法一：public long get（)；//返回当前的值11 方法二：public void set(long newValue)；//设置当前实例的值为newValue11 方法三：public long incrementAndGet（)；//将当前实例的key值加一并且返回11 那么，我们如何获得一个RedisAtomicLong实例呢？楼主提供以下两个方法：在获取实例之前，我们需要设置好jedis的配置。
在application.xml文件中，加入以下配置： p:host-name=＂${redis.ip}＂ p:port=＂${redis.port}＂ p:password=＂${redis.pass}＂ p:pool-config-ref=＂jedisPoolConfig＂/> class=＂org.springframework.data.redis.serializer.StringRedisSerializer＂ />
如何用redis来生成唯一Id
58# Redis服务器连接端口spring.redis.port=6379 # Redis服务器连接密码（默认为空）spring.redis.password= # 连接池最大连接数（使用负值表示没有限制）spring.redis.pool;dependency> 2。
本文介绍Redis在Spring Boot中两个典型的应用场景.opsForValue().set(＂aaa＂, ＂111＂);Assert.assertEquals(＂111＂, stringRedisTemplate.opsForValue().get(＂aaa＂));}@Testpublic void testObj() throws Exception {User user=new User(＂aa@126.com＂, ＂aa＂, ＂aa123456＂, ＂aa＂,＂123＂);ValueOperations operations=redisTemplate.opsForValue();operations.set(＂com.neox＂, user);operations.set(＂com.neo.f＂, user,1,TimeUnit.SECONDS);Thread.sleep(1000);//redisTemplate.delete(＂com.neo.f＂);boolean exists=redisTemplate.hasKey(＂com.neo.f＂);if(exists){System.out.println(＂exists is true＂);}else{System.out.println(＂exists is false＂);}// Assert.assertEquals(＂aa＂, operations.get(＂com.neo.f＂).getUserName（)）；}}以上都是手动使用的方式，如何在查找数据库的时候自动使用缓存呢，看下面；4、自动根据方法生成缓存@RequestMapping(＂/getUser＂)@Cacheable(value=＂user-key＂)public User getUser() {User user=userRepository.findByUserName(＂aa＂);System.out.println（＂若下面没出现“无缓存的时候调用”字样且能打印出数据表示测试成功＂）；return user；}其中value的值就是缓存到redis中的key..；/设置缓存过期时间/，同时支持数据持久化.afterPropertiesSet();return template;}}3、好了；@Autowiredprivate RedisTemplate redisTemplate; redisTemplate(RedisConnectionFactory factory) {StringRedisTemplate template = new StringRedisTemplate(factory), Object、添加配置文件# REDIS (RedisProperties)# Redis数据库索引（默认为0）spring。
除此之外，Redis还提供一些类数据库的特性，比如事务；template.setValueSerializer(jackson2JsonRedisSerializer);template.class)public class TestRedis {@Autowiredprivate StringRedisTemplate stringRedisTemplate;}@SuppressWarnings(＂rawtypes＂)@Beanpublic CacheManager cacheManager(RedisTemplate redisTemplate) {RedisCacheManager rcm = new RedisCacheManager(redisTemplate);/Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class)；秒return rcm;for (Object obj : params) {sb.append(target.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL).redis.pool.max-idle=8 # 连接池中的最小空闲连接spring.redis.pool;groupId>spring-boot-starter-redis<,HA，主从库。
可以说Redis兼具了缓存系统和数据库的一些特性.getClass().getName（)）、引入 spring-boot-starter-redisorg.springframework.boot/artifactId> </, lists, sets等.redis.max-active=8 # 连接池最大阻塞等待时间（使用负值表示没有限制）spring.pool.max-wait=-1 # 连接池中的最大空闲连接spring;/rcm.setDefaultExpiration(60)、添加cache的配置类@Configuration@EnableCachingpublic class RedisConfig extends CachingConfigurerSupport{@Beanpublic KeyGenerator keyGenerator() {return new KeyGenerator() {@Overridepublic Object generate(Object target, Method method.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.append(obj.toString());}return sb.toString();}}spring boot对常用的数据库支持外，对nosql 数据库也进行了封装自动化。
redis介绍Redis是目前业界使用最广泛的内存数据存储。
相比memcached,Redis支持更丰富的数据结构，例如hashes.0 展开
怎么连接redis集群 使用jedis连接单机和集群redis的两种方式
第一：非集群状态下 非集群状态下用Jedis获取Redis连接，得到Jedis对象即可，一共有两种：1.利用Jedis构造器，仅限用于测试，在实际项目中肯定是用JedisPool。
Jedis(String host); Jedis(String host , int port);2.利用JedisPool 主要是利用Jedis jedis=jedisPool.getResource(); JedisPool有N多个构造器，常用的构造器参数有GenericObjectPoolConfig poolConfig,String host,int port,int timeout,String password，创建GenericObjectPoolConfig对象时我们一般用其子类JedisPoolConfig (redis.clients.jedis.JedisPoolConfig),timeout是连接redis服务器的超时时间，以毫秒为单位，一般设置为0，如果不设为0，则不可设置太小，如果设成1、2，那么可能因为网络原因在1毫秒、2毫秒之内没有连上服务器而报错。
见下例：[java] view plain copy public static void main(String[] args) { JedisPoolConfig poolConfig = new JedisPoolConfig（)； // 最大连接数 poolConfig.setMaxTotal(2)； // 最大空闲数 poolConfig.setMaxIdle(2)； // 最大允许等待时间，如果超过这个时间还未获取到连接，则会报JedisException异常： // Could not get a resource from the pool poolConfig.setMaxWaitMillis(1000); JedisPool pool = new JedisPool(poolConfig, ＂192.168.83.128＂, 6379, 0, ＂123＂); Jedis jedis = null; try { for (int i = 0; i jedis = pool.getResource(); jedis.set(＂foo＂ + i, ＂bar＂ + i); System.out.println（＂第＂ + （i + 1） + ＂个连接， 得到的值为＂ + jedis.get(＂foo＂ + i)）； // 用完一定要释放连接 jedis.close(); } } finally { pool.close（)； } } 如上，创建出一个JedisPool对象，然后调用其getResource（)方法获取redis连接即可，之后就可以调用Jedis API操作redis了。
jedis连接用完要释放即close，如果不close，则产生的连接会越来越多，当达到了最大连接数，再想获得连接，就会等待，当超过了最大等待时间后就会报异常。
第二：集群状态下 集群状态下用Jedis获取redis连接，是得到JedisCluster对象，之后对redis进行操作都是用此对象的方法进行的：[java] view plain copy public static void main(String[] args) { JedisPoolConfig poolConfig = new JedisPoolConfig（)； // 最大连接数 poolConfig.setMaxTotal(1)； // 最大空闲数 poolConfig.setMaxIdle(1)； // 最大允许等待时间，如果超过这个时间还未获取到连接，则会报JedisException异常： // Could not get a resource from the pool poolConfig.setMaxWaitMillis(1000); Set nodes = new LinkedHashSet(); nodes.add(new HostAndPort(＂192.168.83.128＂, 6379)); nodes.add(new HostAndPort(＂192.168.83.128＂, 6380)); nodes.add(new HostAndPort(＂192.168.83.128＂, 6381)); nodes.add(new HostAndPort(＂192.168.83.128＂, 6382)); nodes.add(new HostAndPort(＂192.168.83.128＂, 6383)); nodes.add(new HostAndPort(＂192.168.83.128＂, 6384)); JedisCluster cluster = new JedisCluster(nodes, poolConfig); String name = cluster.get(＂name＂); System.out.println(name); cluster.set(＂age＂, ＂18＂); System.out.println(cluster.get(＂age＂)); try { cluster.close(); } catch (IOException e) { e.printStackTrace（)； } } 用集群时，好像没有办法设置集群的参数，比如最大连接数，虽然在创建JedisCluster 对象时传了JedisPoolConfig对象进去，但是JedisPoolConfig对象中的设置是不生效的。
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