Redis（五）之整合Jedis与Spring

思路：创建一个redis操作的接口。分别创建两个实现类对应redis 的单机版和集群版。当使用单机版redis时，配置单机版的实现类，当使用集群版本的时候，配置集群版的实现类。

JedisClient接口

/**
 * redis客户端接口，在这里添加常用方法
 */
public interface JedisClient {
    public String set(String key, String value);
    public String get(String key);
    public Long hset(String key, String item, String value);
    public String hget(String key, String item);
    public Long incr(String key);
    public Long decr(String key);
    public Long expire(String key, int second);
    public Long ttl(String key);
}

JedisClient单机版实现类

/**
 * redis客户端单机版实现类
 */
public class JedisClientSingle implements JedisClient{

    @Autowired
    private 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 Long hset(String key, String item, String value) {
        Jedis jedis = jedisPool.getResource();
        Long result = jedis.hset(key, item, value);
        jedis.close();
        return result;
    }

    @Override
    public String hget(String key, String item) {
        Jedis jedis = jedisPool.getResource();
        String result = jedis.hget(key, item);
        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 decr(String key) {
        Jedis jedis = jedisPool.getResource();
        Long result = jedis.decr(key);
        jedis.close();
        return result;
    }

    @Override
    public Long expire(String key, int second) {
        Jedis jedis = jedisPool.getResource();
        Long result = jedis.expire(key, second);
        jedis.close();
        return result;
    }

    @Override
    public Long ttl(String key) {
        Jedis jedis = jedisPool.getResource();
        Long result = jedis.ttl(key);
        jedis.close();
        return result;
    }
}

JedisClient集群版实现类

/**
 * redis客户端集群版实现类
 */
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 Long hset(String key, String item, String value) {
        return jedisCluster.hset(key, item, value);
    }

    @Override
    public String hget(String key, String item) {
        return jedisCluster.hget(key, item);
    }

    @Override
    public Long incr(String key) {
        return jedisCluster.incr(key);
    }

    @Override
    public Long decr(String key) {
        return jedisCluster.decr(key);
    }

    @Override
    public Long expire(String key, int second) {
        return jedisCluster.expire(key, second);
    }

    @Override
    public Long ttl(String key) {
        return jedisCluster.ttl(key);
    }
}

Spring中的配置

<!-- 包扫描器，扫描带注解的类 -->
<context:component-scan base-package="com.taotao.rest.component"></context:component-scan>

<!-- 根据实际情况，选择其中一个打开使用 -->
<!-- 配置redis客户端单机版 -->
<bean id="jedisPool" class="redis.clients.jedis.JedisPool">
    <constructor-arg name="host" value="192.168.25.153"></constructor-arg>
    <constructor-arg name="port" value="6379"></constructor-arg>
</bean>
<!-- 配置redis客户端实现类 -->
<bean id="jedisClientSingle" class="com.taotao.rest.component.impl.JedisClientSingle"/>

<!-- 配置redis客户端集群版 -->
<!-- <bean id="jedisCluster" class="redis.clients.jedis.JedisCluster">
    <constructor-arg>
        <set>
            <bean class="redis.clients.jedis.HostAndPort">
                <constructor-arg name="host" value="192.168.25.153"/>
                <constructor-arg name="port" value="7001"/>
            </bean>
            <bean class="redis.clients.jedis.HostAndPort">
                <constructor-arg name="host" value="192.168.25.153"/>
                <constructor-arg name="port" value="7002"/>
            </bean>
            <bean class="redis.clients.jedis.HostAndPort">
                <constructor-arg name="host" value="192.168.25.153"/>
                <constructor-arg name="port" value="7003"/>
            </bean>
            <bean class="redis.clients.jedis.HostAndPort">
                <constructor-arg name="host" value="192.168.25.153"/>
                <constructor-arg name="port" value="7004"/>
            </bean>
            <bean class="redis.clients.jedis.HostAndPort">
                <constructor-arg name="host" value="192.168.25.153"/>
                <constructor-arg name="port" value="7005"/>
            </bean>
            <bean class="redis.clients.jedis.HostAndPort">
                <constructor-arg name="host" value="192.168.25.153"/>
                <constructor-arg name="port" value="7006"/>
            </bean>
        </set>
    </constructor-arg>
</bean>
<bean id="jedisClientCluster" class="com.taotao.rest.component.impl.JedisClientCluster"/> 
-->

测试

@Test
public void testJedisClientSpring() throws Exception {
    //创建一个spring容器
    ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:spring/applicationContext-*.xml");
    //从容器中获得JedisClient对象
    JedisClient jedisClient = applicationContext.getBean(JedisClient.class);
    //jedisClient操作redis
    jedisClient.set("client", "1024");
    String string = jedisClient.get("client");
    System.out.println(string);
}