Spring Boot和Hazelcast使用详解

<parent> 
  <groupId> org.springframework.boot </ groupId> 
  <artifactId> spring-boot-starter-parent </ artifactId> 
  <version> 2.0.0.RELEASE </ version> 
</ parent> 
<dependencies> 
  <dependency > 
    <groupId> org.springframework.boot </ groupId> 
    <artifactId> spring-boot-starter-web </ artifactId> 
  </ dependency> 
  <dependency> 
    <groupId> com.hazelcast </ groupId> 
    <artifactId> hazelcast </ artifactId> 
  </ dependency> 
  <dependency> 
    <groupId> com.hazelcast </ groupId> 
    <artifactId> hazelcast-spring </ artifactId> 
  </ dependency> 
</ dependencies>

import com.hazelcast.config.Config; 
import com.hazelcast.config.EvictionPolicy; 
import com.hazelcast.config.MapConfig; 
import com.hazelcast.config.MaxSizeConfig; 
import org.springframework.context.annotation.Bean; 
import org.springframework.context.annotation.Configuration;

@Configuration 
public class HazelcastConfiguration { 
  @Bean 
  public Config hazelCastConfig（）{ 
    Config config = new Config（）; 
    config.setInstanceName（“hazelcast-instance”）。
        addMapConfig（
            new MapConfig（）。
                setName（“configuration”）
                .setMaxSizeConfig（新MaxSizeConfig（200，MaxSizeConfig.MaxSizePolicy。FREE_HEAP_SIZE））
                .setEvictionPolicy（EvictionPolicy。LRU）
.setTimeToLiveSeconds（-1））; 
    return config; 
  } 
}

@RestController
@RequestMapping("/hazelcast")
public class HazelcastController {

  private final Logger logger = LoggerFactory.getLogger(HazelcastController.class);
  private final HazelcastInstance hazelcastInstance;

  @Autowired
  HazelcastController(HazelcastInstance hazelcastInstance) {
    this.hazelcastInstance = hazelcastInstance;
  }

  @PostMapping(value = "/write-data")
  public String writeDataToHazelcast(@RequestParam String key, @RequestParam String value) {
    Map<String, String> hazelcastMap = hazelcastInstance.getMap("my-map");
    hazelcastMap.put(key, value);
    return "Data is stored.";
  }

  @GetMapping(value = "/read-data")
  public String readDataFromHazelcast(@RequestParam String key) {
    Map<String, String> hazelcastMap = hazelcastInstance.getMap("my-map");
    return hazelcastMap.get(key);
  }

  @GetMapping(value = "/read-all-data")
  public Map<String, String> readAllDataFromHazelcast() {
    Map<String, String> hazelcastMap = hazelcastInstance.getMap("my-map");
    return hazelcastInstance.getMap("my-map");
  }

}