標籤:spring redis
1.簡單介紹
redis 是基於C語言開發。
redis是一個key-value儲存系統。和Memcached類似,它支援儲存的value類型相對更多,包括string(字串)、list(鏈表)、set(集合)、zset(sorted set --有序集合)和hash(雜湊類型)。
redis 是一個 快取資料庫(片面的理解) 既可以做緩衝,也可以將資料持久化到磁碟中!
2.pom.xml 引入相關jar (曾經因jar 版本問題出現報錯,請注意)
<dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-pool2</artifactId> <version>2.2</version></dependency><dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-redis</artifactId> <version>1.7.5.RELEASE</version></dependency><dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.9.0</version></dependency>
3.spring-redis.xml 設定檔,配置關鍵bean redisTemplate
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd"> <!-- <context:property-placeholder location="classpath:redis-config.properties"/> --> <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"> <property name="maxIdle" value="${redis.maxIdle}" /> <property name="maxTotal" value="${redis.maxTotal}" /> <property name="blockWhenExhausted" value="true" /> <property name="maxWaitMillis" value="${redis.maxWaitMillis}" /> <property name="testOnBorrow" value="${redis.testOnBorrow}" /> </bean> <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"> <property name="hostName" value="${redis.hostname}" /> <property name="port" value="${redis.port}"/> <property name="poolConfig" ref="jedisPoolConfig" /> <property name="usePool" value="true"/> </bean> <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate"> <property name="connectionFactory" ref="jedisConnectionFactory" /> <property name="keySerializer"> <bean class="org.springframework.data.redis.serializer.StringRedisSerializer" /> </property> <property name="valueSerializer"> <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer" /> </property> <property name="hashKeySerializer"> <bean class="org.springframework.data.redis.serializer.StringRedisSerializer"/> </property> <property name="hashValueSerializer"> <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"/> </property> </bean> </beans>
上文中使用到的設定檔 redis-config.properteis
redis.maxIdle=1redis.maxTotal=5redis.maxWaitMillis=30000redis.testOnBorrow=trueredis.hostname=127.0.0.1redis.port=6379
4.redis 有4個關鍵的介面如下
private ValueOperations<K, V> valueOps;
private ListOperations<K, V> listOps;
private SetOperations<K, V> setOps;
private ZSetOperations<K, V> zSetOps;
分別對應redis的資料類型:string(字串),hash(雜湊),list(列表),set(集合)及zset(sorted set:有序集合)
具體使用如下,上代碼:
//添加字串ValueOperations<String, String> value = this.redisTemplate.opsForValue();value.set("hello", "討厭");System.out.println(value.get("hello"));//添加 一個 hash集合HashOperations<String, Object, Object> hash =redisTemplate.opsForHash();hash.put("沃爾瑪","水果", "蘋果");hash.put("沃爾瑪","飲料", "紅牛");System.out.println(hash.entries("沃爾瑪"));//添加一個list 集合ListOperations<String, Object> list = redisTemplate.opsForList();list.rightPush("課程", "chinese");list.rightPush("課程", "englise");System.out.println(list.range("lpList", 0, 1));//添加 一個 set 集合SetOperations<String, Object> set = redisTemplate.opsForSet();set.add("lpSet", "lp");set.add("lpSet", "26");set.add("lpSet", "178cm");//輸出 set 集合System.out.println(set.members("lpSet"));//添加有序的 set 集合ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();zset.add("lpZset", "lp", 0);zset.add("lpZset", "26", 2);zset.add("lpZset", "178cm", 1);//輸出有序 set 集合System.out.println(zset.rangeByScore("lpZset", 0, 2));
本文出自 “布拉君君” 部落格,請務必保留此出處http://5148737.blog.51cto.com/5138737/1976501
spring 整合redis 簡單使用