java项目中配置redis-cluster集群的两种方式

本文分两部分：

（1）jedisCluster
（2）Spring-Data-Redis集群配置和RedisTemplate用法

我这里是在本机上搭建的3主3从6个redis实例。

---

一，jedisCluster

jar引入：

<dependency>
    <groupId>redis.clientsgroupId>
    <artifactId>jedisartifactId>
    <version>2.4.2version>
dependency>

连接集群测试：

@Test  
    public void testJedisCluster() throws Exception {  
        // 第一步：使用JedisCluster对象。需要一个Set参数。Redis节点的列表。  
        Set nodes = new HashSet<>();  
        nodes.add(new HostAndPort("127.0.0.1", 7001));  
        nodes.add(new HostAndPort("127.0.0.1", 7002));  
        nodes.add(new HostAndPort("127.0.0.1", 7003));  
        nodes.add(new HostAndPort("127.0.0.1", 7004));  
        nodes.add(new HostAndPort("127.0.0.1", 7005));  
        nodes.add(new HostAndPort("127.0.0.1", 7006));  
        JedisCluster jedisCluster = new JedisCluster(nodes);  
        // 第二步：直接使用JedisCluster对象操作redis。在系统中单例存在。  
        jedisCluster.set("a", "1");  
        String result = jedisCluster.get("a");  
        // 第三步：打印结果  
        System.out.println(result);  
        // 第四步：系统关闭前，关闭JedisCluster对象。  
        jedisCluster.close();  
    }  

基于Spring的配置：

  
    <bean id="jedisCluster" class="redis.clients.jedis.JedisCluster">  
        <constructor-arg>  
            <set>  
                <bean class="redis.clients.jedis.HostAndPort">  
                    <constructor-arg name="host" value="127.0.0.1">constructor-arg>  
                    <constructor-arg name="port" value="7001">constructor-arg>  
                bean>  
                <bean class="redis.clients.jedis.HostAndPort">  
                    <constructor-arg name="host" value="127.0.0.1">constructor-arg>  
                    <constructor-arg name="port" value="7002">constructor-arg>  
                bean>  
                <bean class="redis.clients.jedis.HostAndPort">  
                    <constructor-arg name="host" value="127.0.0.1">constructor-arg>  
                    <constructor-arg name="port" value="7003">constructor-arg>  
                bean>  
                <bean class="redis.clients.jedis.HostAndPort">  
                    <constructor-arg name="host" value="127.0.0.1">constructor-arg>  
                    <constructor-arg name="port" value="7004">constructor-arg>  
                bean>  
                <bean class="redis.clients.jedis.HostAndPort">  
                    <constructor-arg name="host" value="127.0.0.1">constructor-arg>  
                    <constructor-arg name="port" value="7005">constructor-arg>  
                bean>  
                <bean class="redis.clients.jedis.HostAndPort">  
                    <constructor-arg name="host" value="127.0.0.1">constructor-arg>  
                    <constructor-arg name="port" value="7006">constructor-arg>  
                bean>  
            set>  
        constructor-arg>  
    bean>  
    <bean id="jedisClientCluster" class="com.demo.jedis.JedisClientCluster"/>

接口定义：

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);  
}  

---

实现类:

public class JedisClientCluster implements JedisClient {  

    @Autowired  
    private 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);  
    }  

}  

最后可以在项目中直接使用接口类。

---

二，Spring-Data-Redis集群配置和RedisTemplate用法

注意版本与spring版本最好相差不多，不然会报错。
jar:

     
        <dependency>
            <groupId>org.springframework.datagroupId>
            <artifactId>spring-data-redisartifactId>
            <version>1.7.11.RELEASEversion>
        dependency>
        <dependency>
            <groupId>redis.clientsgroupId>
            <artifactId>jedisartifactId>
            <version>2.8.2version>
        dependency>

spring-data-redis.xml配置：

<description>Jedis Cluster Configurationdescription>

<context:property-placeholder
    ignore-unresolvable="true" location="classpath:redis.cluster.properties" />

<bean id="redisClusterConfiguration"
    class="org.springframework.data.redis.connection.RedisClusterConfiguration">
    <property name="maxRedirects" value="3">property>
    
    <property name="clusterNodes">
        <set>
            <bean class="org.springframework.data.redis.connection.RedisClusterNode">
                <constructor-arg name="host" value="127.0.0.1">constructor-arg>
                <constructor-arg name="port" value="7001">constructor-arg>
            bean>
            <bean class="org.springframework.data.redis.connection.RedisClusterNode">
                <constructor-arg name="host" value="127.0.0.1">constructor-arg>
                <constructor-arg name="port" value="7002">constructor-arg>
            bean>
            <bean class="org.springframework.data.redis.connection.RedisClusterNode">
                <constructor-arg name="host" value="127.0.0.1">constructor-arg>
                <constructor-arg name="port" value="7003">constructor-arg>
            bean>
            <bean class="org.springframework.data.redis.connection.RedisClusterNode">
                <constructor-arg name="host" value="127.0.0.1">constructor-arg>
                <constructor-arg name="port" value="7004">constructor-arg>
            bean>
            <bean class="org.springframework.data.redis.connection.RedisClusterNode">
                <constructor-arg name="host" value="127.0.0.1">constructor-arg>
                <constructor-arg name="port" value="7005">constructor-arg>
            bean>
            <bean class="org.springframework.data.redis.connection.RedisClusterNode">
                <constructor-arg name="host" value="127.0.0.1">constructor-arg>
                <constructor-arg name="port" value="7006">constructor-arg>
            bean>
        set>
    property>
bean>
<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
    <property name="maxIdle" value="100" />
    <property name="maxTotal" value="600" />
bean>
<bean id="jeidsConnectionFactory"
    class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
    <constructor-arg ref="redisClusterConfiguration" />
    <constructor-arg ref="jedisPoolConfig" />
bean>

<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">
    <property name="connectionFactory" ref="jeidsConnectionFactory" />
bean>

以上就是全部配置，可以使用模板操作：

   @Autowired
   private RedisTemplate redisTemplate;