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://HdhCmsTestw3.org/2001/xmlschema-instance"

     xmlns= "http://HdhCmsTestspringframework.org/schema/beans"

     xmlns:context= "http://HdhCmsTestspringframework.org/schema/context"

     xmlns:cache= "http://HdhCmsTestspringframework.org/schema/cache"

     xsi:schemalocation="http: //HdhCmsTestspringframework.org/schema/beans

     http: //HdhCmsTestspringframework.org/schema/beans/spring-beans.xsd

     http: //HdhCmsTestspringframework.org/schema/context http://HdhCmsTestspringframework.org/schema/context/spring-context.xsd

     http: //HdhCmsTestspringframework.org/schema/cache http://HdhCmsTestspringframework.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( "----------------------------------" );

}