spring 使用redis集群配置

上面两篇介绍了redis集群的配置合一些基本的概念，所以接下来当然是要在项目中使用咯，redis的java支持已经做的非常好了，所以我们来试着使用这些api来进行redis的操作，首先我们需要操作redis的架包：

<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.7.3</version>
</dependency>

我们需要做的仅仅是在spring配置文件中注入这些基本类，然后自己实现dao，下面是配置文件：

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

<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
<property name="maxTotal" value="1000"/>
<property name="maxIdle" value="10"/>
<property name="minIdle" value="1"/>
<property name="maxWaitMillis" value="30000"/>
<property name="testOnBorrow" value="true"/>
<property name="testOnReturn" value="true"/>
<property name="testWhileIdle" value="true"/>
<!-- <property name="testWhileIdle" value="true"/> -->
</bean>

<bean id="shardedJedisPool" class="redis.clients.jedis.ShardedJedisPool" destroy-method="destroy">
<constructor-arg ref="jedisPoolConfig"/>
<constructor-arg>
　　　　　　<!--如果以后需要扩展集群，只需要复制一份redis,修改端口，然后在这里配置即可-->
<list>
<bean class="redis.clients.jedis.JedisShardInfo">
<constructor-arg index="0" value="127.0.0.1"/>
<constructor-arg index="1" value="6379"/>
<constructor-arg index="2" value="instance:01"/>
</bean>
<bean class="redis.clients.jedis.JedisShardInfo">
<constructor-arg index="0" value="127.0.0.1"/>
<constructor-arg index="1" value="6380"/>
<constructor-arg index="2" value="instance:02"/>
</bean>
<bean class="redis.clients.jedis.JedisShardInfo">
<constructor-arg index="0" value="127.0.0.1"/>
<constructor-arg index="1" value="6381"/>
<constructor-arg index="2" value="instance:03"/>
</bean>
</list>
</constructor-arg>
</bean>
<!--java帮我们同步sentinel的信息，将主从信息同步到客户端来-->
<bean class="redis.clients.jedis.JedisSentinelPool">
<constructor-arg index="0" value="mymaster"/>
<constructor-arg index="1">
<set>
<value>127.0.0.1:26379</value>
</set>
</constructor-arg>
<constructor-arg index="2" ref="jedisPoolConfig"/>
</bean>

上面配置好了以后，我们就相当于将redis集群给映射过来了，下来我们只需要做一些操作，涉及到数据的CRUD.

package com.yonyou.hotusm.module.nosql.redis;

import redis.clients.jedis.ShardedJedis;
//这个接口是操作sharedJedis
public interface RedisDataSource {

public abstract ShardedJedis getRedisClient();
public void returnResource(ShardedJedis shardedJedis);
public void returnResource(ShardedJedis shardedJedis,boolean broken);
}

实现：

package com.yonyou.hotusm.module.nosql.redis;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import redis.clients.jedis.ShardedJedis;
import redis.clients.jedis.ShardedJedisPool;

@Repository("redisDataSource")
public class RedisDataSourceImpl implements RedisDataSource {

private static final Logger log = LoggerFactory.getLogger(RedisDataSourceImpl.class);

@Autowired
private ShardedJedisPool    shardedJedisPool;

public ShardedJedis getRedisClient() {
try {
ShardedJedis shardJedis = shardedJedisPool.getResource();
return shardJedis;
} catch (Exception e) {
log.error("getRedisClent error", e);
}
return null;
}

public void returnResource(ShardedJedis shardedJedis) {
shardedJedisPool.close();
//shardedJedisPool.returnResource(shardedJedis);
}

public void returnResource(ShardedJedis shardedJedis, boolean broken) {
if (broken) {
shardedJedisPool.close();
//shardedJedisPool.returnBrokenResource(shardedJedis);
} else {
shardedJedisPool.close();
//shardedJedisPool.returnResource(shardedJedis);
}
}
}

下面就是操作jedis的具体类了：

@Repository("jedisTemplate")
public class JedisTemplate {

private static final Logger log = LoggerFactory.getLogger(JedisTemplate.class);

@Autowired
private RedisDataSource     redisDataSource;

public void disconnect() {
ShardedJedis shardedJedis = redisDataSource.getRedisClient();
shardedJedis.disconnect();
}

/**
* 设置单个值
*
* @param key
* @param value
* @return
*/
public String set(String key, String value) {
String result = null;

ShardedJedis shardedJedis = redisDataSource.getRedisClient();
if (shardedJedis == null) {
return result;
}
boolean broken = false;
try {
result = shardedJedis.set(key, value);
} catch (Exception e) {
e.printStackTrace();
log.error(e.getMessage(), e);
broken = true;
} finally {
redisDataSource.returnResource(shardedJedis, broken);
}
return result;
}

/**
* 获取单个值
*
* @param key
* @return
*/
public String get(String key) {
String result = null;
ShardedJedis shardedJedis = redisDataSource.getRedisClient();
if (shardedJedis == null) {
return result;
}

boolean broken = false;
try {
result = shardedJedis.get(key);

} catch (Exception e) {
log.error(e.getMessage(), e);
broken = true;
} finally {
redisDataSource.returnResource(shardedJedis, broken);
}
return result;
}

真正的还有很多操作，list，set，哈希什么的，我就不把代码贴出来了，看看api就知道了