[Java] 使用Spring Data Redis实现数据缓存的方法

compile "org.springframework.data:spring-data-redis:1.7.2.release"
compile "redis.clients:jedis:2.7.2"
testcompile "junit:junit:4.12"

# redis settings
redis.host=127.0.0.1
redis.port=6379
redis.pass=
redis.dbindex=0
redis.expiration=3000
redis.maxidle=300
redis.maxactive=600
redis.maxwait=1000
redis.testonborrow=true

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<beans xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"
  xmlns="http://www.springframework.org/schema/beans"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:cache="http://www.springframework.org/schema/cache"
  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/cache http://www.springframework.org/schema/cache/spring-cache.xsd">
  <context:component-scan base-package="redis.cache"/>
  <context:annotation-config/>
  <cache:annotation-driven cache-manager="rediscachemanager"/>
  <bean class="org.springframework.beans.factory.config.propertyplaceholderconfigurer">
  <property name="locations">
    <list>
    <value>classpath:redis.properties</value>
    </list>
  </property>
  </bean>
  <!-- 配置jedispoolconfig实例 -->
  <bean id="poolconfig" class="redis.clients.jedis.jedispoolconfig">
  <property name="maxidle" value="${redis.maxidle}"/>
  <property name="maxtotal" value="${redis.maxactive}"/>
  <property name="maxwaitmillis" value="${redis.maxwait}"/>
  <property name="testonborrow" value="${redis.testonborrow}"/>
  </bean>
  <!-- 配置jedisconnectionfactory -->
  <bean id="jedisconnectionfactory" class="org.springframework.data.redis.connection.jedis.jedisconnectionfactory">
  <property name="hostname" value="${redis.host}"/>
  <property name="port" value="${redis.port}"/>
  <property name="password" value="${redis.pass}"/>
  <property name="database" value="${redis.dbindex}"/>
  <property name="poolconfig" ref="poolconfig"/>
  </bean>
  <!-- 配置redistemplate -->
  <bean id="redistemplate" class="org.springframework.data.redis.core.redistemplate">
  <property name="connectionfactory" ref="jedisconnectionfactory"/>
  </bean>
  <!-- 配置rediscachemanager -->
  <bean id="rediscachemanager" class="org.springframework.data.redis.cache.rediscachemanager">
  <constructor-arg name="redisoperations" ref="redistemplate"/>
  <property name="defaultexpiration" value="${redis.expiration}"/>
  </bean>
</beans>

@service("userservice")
public class userservice {
  @cacheable(value = "user", key = "'userid_' + #id",condition = "#id<=110")
  public string queryfullnamebyid(long id) {
  system.out.println("execute queryfullnamebyid method");
  return "zhangsanfeng";
  }
 
  @cacheevict(value = "user", key = "'userid_' + #id")
  public void deletebyid(long id) {
  system.out.println("execute deletebyid method");
  }
 
  @cacheput(value = "user", key = "'userid_' + #id")
  public string modifyfullnamebyid(long id, string newname) {
  system.out.println("execute modifyfullnamebyid method");
  return newname;
  }
}

@test
public void test() {
  applicationcontext context = new classpathxmlapplicationcontext("rediscachecontext.xml");
  userservice userservice = (userservice) context.getbean("userservice");
  system.out.println("第一次执行查询：" + userservice.queryfullnamebyid(110l));
  system.out.println("----------------------------------");
 
  system.out.println("第二次执行查询：" + userservice.queryfullnamebyid(110l));
  system.out.println("----------------------------------");
 
  userservice.deletebyid(110l);
  system.out.println("----------------------------------");
 
  system.out.println("清除缓存后查询：" + userservice.queryfullnamebyid(110l));
  system.out.println("----------------------------------");
 
  system.out.println(userservice.modifyfullnamebyid(110l, "zhangjunbao"));
  system.out.println("----------------------------------");
 
  system.out.println("修改数据后查询：" + userservice.queryfullnamebyid(110l));
  system.out.println("----------------------------------");
 
  system.out.println("第一次执行查询：" + userservice.queryfullnamebyid(112l));
  system.out.println("----------------------------------");
 
  system.out.println("第二次执行查询：" + userservice.queryfullnamebyid(112l));
  system.out.println("----------------------------------");
}

execute queryfullnamebyid method
第一次执行查询：zhangsanfeng
----------------------------------
第二次执行查询：zhangsanfeng
----------------------------------
execute deletebyid method
----------------------------------
execute queryfullnamebyid method
清除缓存后查询：zhangsanfeng
----------------------------------
execute modifyfullnamebyid method
zhangjunbao
----------------------------------
修改数据后查询：zhangjunbao
----------------------------------
execute queryfullnamebyid method
第一次执行查询：zhangsanfeng
----------------------------------
execute queryfullnamebyid method
第二次执行查询：zhangsanfeng
----------------------------------