SPRING DATA - REDIS配置

       前段時間由於業務需要，研究了下redis，第一次接觸redis，沒有詳細的研究，只把它當着工具來用，以後有時間慢慢研究下，簡單的看了下redis的官網(http://www.redis.io/)，Commands Clients Documentation這3個方面看完已瞭解了大部分情況，看了java Clients，redis官網比較推薦Jedis，而spring對redis的客服端做了一個統一封裝，支持(Jedis,  JRedis, and RJC)，我只對SPRING DATA - REDIS研究了下，那就開始動手吧！ 

      下載redis最新版本  2.4.10 下載地址：http://redis.googlecode.com/files/redis-2.4.10.tar.gz

      安裝的詳細過程就不在這寫了，它現在只支持linux.

 

      然後創建項目......

      如果使用maven的話那就很簡單了，直接加入依賴

 

     編輯pom.xml

<repository>
 <id>spring-milestone</id>
 <name>Spring Maven MILESTONE Repository</name>
 <url>http://maven.springframework.org/milestone</url>
</repository>

<dependency>
 <groupId>org.springframework.data</groupId>
 <artifactId>spring-data-redis</artifactId>
 <version>1.0.0.RC1</version>
</dependency>

<repository>
 <id>spring-milestone</id>
 <name>Spring Maven MILESTONE Repository</name>
 <url>http://maven.springframework.org/milestone</url>
</repository>

<dependency>
 <groupId>org.springframework.data</groupId>
 <artifactId>spring-data-redis</artifactId>
 <version>1.0.0.RC1</version>
</dependency>

 

如果沒有使用maven,那直接下載jar包http://s3.amazonaws.com/dist.springframework.org/release/DATAKV/spring-data-redis-1.0.0.RELEASE.zip

 

   在spring配置文件裏添加

 

<bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
        <property name="hostName" value="localhost"/>
        <property name="port" value="6636"/>
</bean>

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

<bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
        <property name="hostName" value="localhost"/>
        <property name="port" value="6636"/>
</bean>

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

 

    那就可以直接用redisTemplate，redisTemplate和HibernateTemplate很相似。

 

@Service
public class RedisService {
    @Resource
    private RedisTemplate<Serializable, Serializable> template;

 /**
     * 向redis裏面添加key-value格式的數據
     *
     * @param key   key
     * @param value value
     */

    public void set(final Serializable key, final Serializable value) {
        template.execute(new RedisCallback<Object>() {
            @Override
            public Object doInRedis(RedisConnection connection) throws DataAccessException {
                byte[] key_ = RedisUtil.getBytesFromObject(key);
                byte[] value_ = RedisUtil.getBytesFromObject(value);
                connection.set(key_, value_);
                return true;
            }
        });
    }

 /**
     * 根據key從redis裏面取出value
     *
     * @param key   key
     */
 public Serializable get(final Serializable key) {
        return template.execute(new RedisCallback<Serializable>() {
            @Override
            public Serializable doInRedis(RedisConnection connection) throws DataAccessException {

                byte[] keyBytes = RedisUtil.getBytesFromObject(key);
                byte[] bytes = connection.get(keyBytes);
                return (Serializable) RedisUtil.getObjectFromBytes(bytes);
            }
        });
    }
}

@Service
public class RedisService {
    @Resource
    private RedisTemplate<Serializable, Serializable> template;

 /**
     * 向redis裏面添加key-value格式的數據
     *
     * @param key   key
     * @param value value
     */

    public void set(final Serializable key, final Serializable value) {
        template.execute(new RedisCallback<Object>() {
            @Override
            public Object doInRedis(RedisConnection connection) throws DataAccessException {
                byte[] key_ = RedisUtil.getBytesFromObject(key);
                byte[] value_ = RedisUtil.getBytesFromObject(value);
                connection.set(key_, value_);
                return true;
            }
        });
    }

 /**
     * 根據key從redis裏面取出value
     *
     * @param key   key
     */
 public Serializable get(final Serializable key) {
        return template.execute(new RedisCallback<Serializable>() {
            @Override
            public Serializable doInRedis(RedisConnection connection) throws DataAccessException {

                byte[] keyBytes = RedisUtil.getBytesFromObject(key);
                byte[] bytes = connection.get(keyBytes);
                return (Serializable) RedisUtil.getObjectFromBytes(bytes);
            }
        });
    }
}

   

     看了一點JedisConnectionFactory，之際上它只是對Jedis做了下簡單了封裝，再加上自己的連接池實現。