开发中一般使用Redis单机，线上使用Redis集群，因此需要实现单机和集群之间的灵活切换
pom配置：
<!-- Redis客户端 --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> </dependency> </dependencies>
Redis单机和集群之间的灵活切换的封装：
JedisClient.java 接口
import java.util.List; public interface JedisClient { String set(String key, String value); String get(String key); Boolean exists(String key); Long expire(String key, int seconds); Long ttl(String key); Long incr(String key); Long hset(String key, String field, String value); String hget(String key, String field); Long hdel(String key, String... field); Boolean hexists(String key, String field); List<String> hvals(String key); Long del(String key); }
分别实现JedisClient单机版本和集群版本：
JedisClientCluster.java JedisClient集群版：
import java.util.List; import redis.clients.jedis.JedisCluster; public class JedisClientCluster implements JedisClient { private JedisCluster jedisCluster; public JedisCluster getJedisCluster() { return jedisCluster; } public void setJedisCluster(JedisCluster jedisCluster) { this.jedisCluster = jedisCluster; } @Override public String set(String key, String value) { return jedisCluster.set(key, value); } @Override public String get(String key) { return jedisCluster.get(key); } @Override public Boolean exists(String key) { return jedisCluster.exists(key); } @Override public Long expire(String key, int seconds) { return jedisCluster.expire(key, seconds); } @Override public Long ttl(String key) { return jedisCluster.ttl(key); } @Override public Long incr(String key) { return jedisCluster.incr(key); } @Override public Long hset(String key, String field, String value) { return jedisCluster.hset(key, field, value); } @Override public String hget(String key, String field) { return jedisCluster.hget(key, field); } @Override public Long hdel(String key, String... field) { return jedisCluster.hdel(key, field); } @Override public Boolean hexists(String key, String field) { return jedisCluster.hexists(key, field); } @Override public List<String> hvals(String key) { return jedisCluster.hvals(key); } @Override public Long del(String key) { return jedisCluster.del(key); } }
JedisClientPool.java JedisClient单机版
import java.util.List; import redis.clients.jedis.Jedis; import redis.clients.jedis.JedisPool; public class JedisClientPool implements JedisClient { private JedisPool jedisPool; public JedisPool getJedisPool() { return jedisPool; } public void setJedisPool(JedisPool jedisPool) { this.jedisPool = jedisPool; } @Override public String set(String key, String value) { Jedis jedis = jedisPool.getResource(); String result = jedis.set(key, value); jedis.close(); return result; } @Override public String get(String key) { Jedis jedis = jedisPool.getResource(); String result = jedis.get(key); jedis.close(); return result; } @Override public Boolean exists(String key) { Jedis jedis = jedisPool.getResource(); Boolean result = jedis.exists(key); jedis.close(); return result; } @Override public Long expire(String key, int seconds) { Jedis jedis = jedisPool.getResource(); Long result = jedis.expire(key, seconds); jedis.close(); return result; } @Override public Long ttl(String key) { Jedis jedis = jedisPool.getResource(); Long result = jedis.ttl(key); jedis.close(); return result; } @Override public Long incr(String key) { Jedis jedis = jedisPool.getResource(); Long result = jedis.incr(key); jedis.close(); return result; } @Override public Long hset(String key, String field, String value) { Jedis jedis = jedisPool.getResource(); Long result = jedis.hset(key, field, value); jedis.close(); return result; } @Override public String hget(String key, String field) { Jedis jedis = jedisPool.getResource(); String result = jedis.hget(key, field); jedis.close(); return result; } @Override public Long hdel(String key, String... field) { Jedis jedis = jedisPool.getResource(); Long result = jedis.hdel(key, field); jedis.close(); return result; } @Override public Boolean hexists(String key, String field) { Jedis jedis = jedisPool.getResource(); Boolean result = jedis.hexists(key, field); jedis.close(); return result; } @Override public List<String> hvals(String key) { Jedis jedis = jedisPool.getResource(); List<String> result = jedis.hvals(key); jedis.close(); return result; } @Override public Long del(String key) { Jedis jedis = jedisPool.getResource(); Long result = jedis.del(key); jedis.close(); return result; } }
实际使用方法：
applicationContext-redis.xml
<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd"> <!-- 连接redis单机版 --> <bean id="jedisClientPool" class="cn.e3mall.common.jedis.JedisClientPool"> <property name="jedisPool" ref="jedisPool"></property> </bean> <bean id="jedisPool" class="redis.clients.jedis.JedisPool"> <constructor-arg name="host" value="192.168.25.162"/> <constructor-arg name="port" value="6379"/> </bean> <!-- 连接redis集群 --> <!-- <bean > <property name="jedisCluster" ref="jedisCluster"/> </bean> <bean > <constructor-arg name="nodes"> <set> <bean class="redis.clients.jedis.HostAndPort"> <constructor-arg name="host" value="192.168.25.162"></constructor-arg> <constructor-arg name="port" value="7001"></constructor-arg> </bean> <bean class="redis.clients.jedis.HostAndPort"> <constructor-arg name="host" value="192.168.25.162"></constructor-arg> <constructor-arg name="port" value="7002"></constructor-arg> </bean> <bean class="redis.clients.jedis.HostAndPort"> <constructor-arg name="host" value="192.168.25.162"></constructor-arg> <constructor-arg name="port" value="7003"></constructor-arg> </bean> <bean class="redis.clients.jedis.HostAndPort"> <constructor-arg name="host" value="192.168.25.162"></constructor-arg> <constructor-arg name="port" value="7004"></constructor-arg> </bean> <bean class="redis.clients.jedis.HostAndPort"> <constructor-arg name="host" value="192.168.25.162"></constructor-arg> <constructor-arg name="port" value="7005"></constructor-arg> </bean> <bean class="redis.clients.jedis.HostAndPort"> <constructor-arg name="host" value="192.168.25.162"></constructor-arg> <constructor-arg name="port" value="7006"></constructor-arg> </bean> </set> </constructor-arg> </bean> --> </beans>
使用：
@Test public void testJedisClient() throws Exception { //初始化spring容器 ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:spring/applicationContext-redis.xml"); //从容器中获得JedisClient对象 JedisClient jedisClient = applicationContext.getBean(JedisClient.class); jedisClient.set("mytest", "jedisClient"); String string = jedisClient.get("mytest"); System.out.println(string); }
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