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

巴特西

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

最新文章

热门文章