redis單機版與叢集的切換
阿新 • • 發佈:2018-12-25
1、配置jar包
<!-- Redis客戶端 -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>${jedis.version}</version>
</dependency>
2、寫jedis客戶端介面
package cn.e3mall.common.jedis;
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);
}
3、分別寫jedis的單擊版和叢集的實現類
單機版JedisClientPool
package cn.e3mall.common.jedis;
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;
}
}
叢集版的實現類
package cn.e3mall.common.jedis;
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);
}
}
4、將jedis交給spring管理
<?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">
<!-- 連線redis單機版 -->
<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>
<!-- 連線redis叢集 -->
<!-- <bean id="jedisClientCluster" class="cn.e3mall.common.jedis.JedisClientCluster">
<property name="jedisCluster" ref="jedisCluster"/>
</bean>
<bean id="jedisCluster" class="redis.clients.jedis.JedisCluster">
<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>
5、測試
package cn.e3mall.jedis;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import cn.e3mall.common.jedis.JedisClient;
public class JedisClientTest {
@Test
public void testJedisClient() throws Exception {
//初始化spring容器
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:spring/applicationContext-redis.xml");
//從容器中獲得JedisClient物件
JedisClient jedisClient = applicationContext.getBean(JedisClient.class);
jedisClient.set("mytest", "jedisClient");
String string = jedisClient.get("mytest");
System.out.println(string);
}
}