Spring整合redis

tongyi007

pom.xml

<dependencies>
<!-- Spring Data - Redis Library -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
<version>1.4.0.RELEASE</version>
</dependency>
<!-- Jedis Driver Library -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.6.0</version>
</dependency>
<!-- Spring Core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.1.1.RELEASE</version>
</dependency>
<!-- spring-data-redis -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
<version>1.4.1.RELEASE</version>
</dependency>
</dependencies>

beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
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
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- Scanning the Spring Beans -->
<context:component-scan base-package="com.ljn.beans"></context:component-scan>
<bean id="propertyConfigurerRedis" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:redis.properties</value>
</list>
</property>
</bean>

<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
<property name="maxTotal" value="${redis.pool.maxTotal}" />
<property name="maxIdle" value="${redis.pool.maxIdle}" />
<property name="maxWaitMillis" value="${redis.pool.maxWaitMillis}" />
</bean>
<!-- Redis Connection Factory -->
<bean id="jedisConnFactory"
class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
<property name="hostName" value="${redis.ip}" />
<property name="port" value="${redis.port}" />
<property name="poolConfig" ref="jedisPoolConfig" />
</bean>
<!-- Redis Template -->
<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate"
p:connection-factory-ref="jedisConnFactory" />
</beans>

redis.properties

redis.pool.maxTotal=1024
redis.pool.maxIdle=200
redis.pool.maxWaitMillis=3000
redis.pool.testOnBorrow=true
redis.ip=10.75.201.3
redis.port=63790


注意，旧版本的写法：
redis.pool.maxActive=1024
redis.pool.maxIdle=200
redis.pool.maxWait=1000
redis.pool.testOnBorrow=true
redis.ip=10.11.20.140
redis.port=6379
代码：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
@Component
public class RegistrationBean {
@Autowired
private RedisTemplate<String,User> redisTemplate;
public RedisTemplate<String, User> getRedisTemplate() {
return redisTemplate;
}
public void setRedisTemplate(RedisTemplate<String, User> redisTemplate) {
this.redisTemplate = redisTemplate;
}
}

  
RegistrationBean bean = (RegistrationBean)context.getBean("registrationBean");
// Persisting Inside the Hash User object
bean.getRedisTemplate().opsForHash().put("{a}UserA", user.hashCode(),user);
// Retrieving the User object from the Redis by using the suggested key
User x = (User)bean.getRedisTemplate().opsForHash().get("{b}UserA", user.hashCode());
System.out.println(x.getFullName());

注意到上面的getRedisTemplate().opsForHash().set()方法，第一个参数是key本身，第二个参数是object的hashcode，第三个参数是object本身。
例如可以写代码测试：

user.setFullName("ljn");
bean.getRedisTemplate().opsForHash().put("{b}UserA", user.hashCode(),user);
// Retrieving the User object from the Redis by using the suggested key
User y = (User)bean.getRedisTemplate().opsForHash().get("{b}UserA", user.hashCode());
System.out.println(y.getFullName());

这个时候的key跟前面的一样，但取得的value不一样，为修改后的值，getFullName输出：ljn