Spring集成Jedis（不依赖spring-data-redis）（单机/集群模式）（待实践）

Jedis是Redis的Java客户端，Spring将Jedis连接池作为一个Bean来配置。如果在Spring Data的官网上可以发现，Spring Data Redis已经将Jedis集成进去了。

Jedis连接池分为两种：

一种是“redis.clients.jedis.ShardedJedisPool”，这是基于hash算法的一种分布式集群Redis客户端连接池。

另一种是“redis.clients.jedis.JedisPool”，这是单机环境适用的Redis连接池。

下面是介绍详细的集成方式：

POM：

<!-- Redis依赖包 -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.9.0</version>
</dependency>

ShardedJedisPool是Redis集群客户端的对象池，可以通过他来操作ShardedJedis，下面是ShardedJedisPool的XML配置，spring-jedis.xml：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> 
<!-- 引入jedis的properties配置文件 -->
<!--如果你有多个数据源需要通过<context:property-placeholder管理，且不愿意放在一个配置文件里，那么一定要加上ignore-unresolvable=“true"-->
<context:property-placeholder location="classpath:properties/redis.properties" ignore-unresolvable="true" />

<!--shardedJedisPool的相关配置-->
<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
<!--新版是maxTotal，旧版是maxActive-->
<property name="maxTotal">
<value>${redis.pool.maxActive}</value>
</property>
<property name="maxIdle">
<value>${redis.pool.maxIdle}</value>
</property>
<property name="testOnBorrow" value="true"/>
<property name="testOnReturn" value="true"/>
</bean>

<bean id="shardedJedisPool" class="redis.clients.jedis.ShardedJedisPool"  scope="singleton">
<constructor-arg index="0" ref="jedisPoolConfig" />
<constructor-arg index="1">
<list>
<bean class="redis.clients.jedis.JedisShardInfo">
<constructor-arg name="host" value="${redis.uri}" />
</bean>
</list>
</constructor-arg>
</bean>
</beans>

下面是单机环境下Redis连接池的配置：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> 
<!-- 引入jedis的properties配置文件 -->
<!--如果你有多个数据源需要通过<context:property-placeholder管理，且不愿意放在一个配置文件里，那么一定要加上ignore-unresolvable=“true"-->
<context:property-placeholder location="classpath:properties/redis.properties" ignore-unresolvable="true" />

<!--Jedis连接池的相关配置-->
<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
<!--新版是maxTotal，旧版是maxActive-->
<property name="maxTotal">
<value>${redis.pool.maxActive}</value>
</property>
<property name="maxIdle">
<value>${redis.pool.maxIdle}</value>
</property>
<property name="testOnBorrow" value="true"/>
<property name="testOnReturn" value="true"/>
</bean>

<bean id="jedisPool" class="redis.clients.jedis.JedisPool">
<constructor-arg name="poolConfig" ref="jedisPoolConfig" />
<constructor-arg name="host" value="${redis.host}" />
<constructor-arg name="port" value="${redis.port}" type="int" />
<constructor-arg name="timeout" value="${redis.timeout}" type="int" />
<constructor-arg name="password" value="${redis.password}" />
<constructor-arg name="database" value="${redis.database}" type="int" />
</bean>
</beans>

对应的classpath:properties/redis.properties为：

#最大分配的对象数
redis.pool.maxActive=200
#最大能够保持idel状态的对象数
redis.pool.maxIdle=50
redis.pool.minIdle=10
redis.pool.maxWaitMillis=20000
#当池内没有返回对象时，最大等待时间
redis.pool.maxWait=300

#格式：redis://:[密码]@[服务器地址]:[端口]/[db index]
redis.uri = redis://:12345@127.0.0.1:6379/0

redis.host = 127.0.0.1
redis.port = 6379
redis.timeout=30000
redis.password = 12345
redis.database = 0

二者操作代码类似，都是先注入连接池，然后通过连接池获得Jedis实例，通过实例对象操作Redis。

ShardedJedis操作：

@Autowired
private ShardedJedisPool shardedJedisPool;//注入ShardedJedisPool

@RequestMapping(value = "/demo_set",method = RequestMethod.GET)
@ResponseBody
public String demo_set(){
//获取ShardedJedis对象
ShardedJedis shardJedis = shardedJedisPool.getResource();
//存入键值对
shardJedis.set("key1","hello jedis");
//回收ShardedJedis实例
shardJedis.close();

return "set";
}

@RequestMapping(value = "/demo_get",method = RequestMethod.GET)
@ResponseBody
public String demo_get(){
ShardedJedis shardedJedis = shardedJedisPool.getResource();
//根据键值获得数据
String result = shardedJedis.get("key1");
shardedJedis.close();

return result;
}

Jedis操作：

@Autowired
private JedisPool jedisPool;//注入JedisPool

@RequestMapping(value = "/demo_set",method = RequestMethod.GET)
@ResponseBody
public String demo_set(){
//获取ShardedJedis对象
Jedis jedis = jedisPool.getResource();
//存入键值对
jedis.set("key2","hello jedis one");
//回收ShardedJedis实例
jedis.close();

return "set";
}

@RequestMapping(value = "/demo_get",method = RequestMethod.GET)
@ResponseBody
public String demo_get(){
Jedis jedis = jedisPool.getResource();
//根据键值获得数据
String result = jedis.get("key2");
jedis.close();

return result;
}

参考：

http://www.cnblogs.com/red-code/p/6657517.html（以上内容转自此篇文章）

http://blog.csdn.net/javaloveiphone/article/details/52355180

http://blog.csdn.net/w410589502/article/details/54341040

http://blog.csdn.net/tomli2017/article/details/69929371

http://www.cnblogs.com/hz-cww/p/6030504.html

http://blog.csdn.net/wang_keng/article/details/51753637