Spring Boot Hazelcast Caching 使用和配置详解

<?xml version= "1.0" encoding= "utf-8" ?>

<project xmlns= "http://maven.apache.org/pom/4.0.0"

      xmlns:xsi= "http://www.w3.org/2001/xmlschema-instance"

      xsi:schemalocation= "http://maven.apache.org/pom/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" >

   <modelversion> 4.0 . 0 </modelversion>

   <groupid>com.zzf</groupid>

   <artifactid>spring-boot-hazelcast</artifactid>

   <version> 1.0 -snapshot</version>

   <parent>

     <groupid>org.springframework.boot</groupid>

     <artifactid>spring-boot-starter-parent</artifactid>

     <version> 2.0 . 1 .release</version>

   </parent>

   <dependencies>

     <!-- spring boot  -->

     <dependency>

       <groupid>org.springframework.boot</groupid>

       <artifactid>spring-boot-starter-cache</artifactid>

     </dependency>

     <dependency>

       <groupid>org.springframework.boot</groupid>

       <artifactid>spring-boot-starter-actuator</artifactid>

     </dependency>

     <dependency>

       <groupid>org.springframework.boot</groupid>

       <artifactid>spring-boot-starter-web</artifactid>

     </dependency>

     <!-- hazelcast jar -->

     <dependency>

       <groupid>com.hazelcast</groupid>

       <artifactid>hazelcast-all</artifactid>

       <version> 3.10 . 1 </version>

     </dependency>

   </dependencies>

   <build>

     <plugins>

       <plugin>

         <groupid>org.springframework.boot</groupid>

         <artifactid>spring-boot-maven-plugin</artifactid>

       </plugin>

     </plugins>

   </build>

</project>

@service

@cacheconfig (cachenames = "instruments" )

public class musicservice {

   private static logger log = loggerfactory.getlogger(musicservice. class );

   @cacheevict (allentries = true )

   public void clearcache(){}

   // 表示的是属性为 trombone 就进行缓存

   @cacheable (condition = "#instrument.equals('trombone')" )

   public string play(string instrument){

     log.info( "executing: " + this .getclass().getsimplename() + ".play(\"" + instrument + "\");" );

     return "playing " + instrument + "!" ;

   }

}

@configuration

public class hazelcastconfiguration {

   @bean

   public config hazelcastconfig(){

     return new config().setinstancename( "hazelcast-instance" )

         .addmapconfig(

               new mapconfig()

                   .setname( "instruments" )

                   .setmaxsizeconfig( new maxsizeconfig( 200 , maxsizeconfig.maxsizepolicy.free_heap_size))

                   .setevictionpolicy(evictionpolicy.lru)

                   .settimetoliveseconds( 20 )

         );

   }

}

<?xml version= "1.0" encoding= "utf-8" ?>

<hazelcast

     xsi:schemalocation= "http://www.hazelcast.com/schema/config http://www.hazelcast.com/schema/config/hazelcast-config.xsd"

     xmlns= "http://www.hazelcast.com/schema/config"

     xmlns:xsi= "http://www.w3.org/2001/xmlschema-instance" >

   <map name= "instruments" >

     <max-size> 200 </max-size>

     <eviction-policy>lfu</eviction-policy>

     <time-to-live-seconds> 20 </time-to-live-seconds>

   </map>

</hazelcast>

# application.yml

spring:

  hazelcast:

   config: classpath:config/hazelcast.xml

# application.properties

spring.hazelcast.config=classpath:config/hazelcast.xml

@controller

public class hazelcastcontroller {

   private logger logger = loggerfactory.getlogger(hazelcastcontroller. class );

   @autowired

   private musicservice musicservice;

   @autowired

   private cachemanager cachemanager;

   @requestmapping ( "/hezelcast" )

   @responsebody

   public void gethazelcast(){

     logger.info( "spring boot hazelcast caching example configuration" );

     logger.info( "using cache manager: " + cachemanager.getclass().getname());

     // 清空缓存

     musicservice.clearcache();

     // 调用方法

     play( "trombone" );

     play( "guitar" );

     play( "trombone" );

     play( "guitar" );

     play( "bass" );

     play( "trombone" );

   }

   private void play(string instrument){

     logger.info( "calling: " + musicservice. class .getsimplename() + ".play(\"" + instrument + "\");" );

     musicservice.play(instrument);

   }

}

@enablecaching

@springbootapplication

public class hazelcastapplication{

   private logger logger = loggerfactory.getlogger(hazelcastapplication. class );

   public static void main(string[] args) {

     springapplication.run(hazelcastapplication. class , args);

   }

}