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 + "!";  }}

@Configurationpublic 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.ymlspring: hazelcast:  config: classpath:config/hazelcast.xml

# application.propertiesspring.hazelcast.config=classpath:config/hazelcast.xml

@Controllerpublic 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@SpringBootApplicationpublic class HazelcastApplication{  private Logger logger = LoggerFactory.getLogger(HazelcastApplication.class);  public static void main(String[] args) {    SpringApplication.run(HazelcastApplication.class, args);  }}