ืืขืื ืึทืืขืืขื, ืืึธ ืก ืืขืจ ืืจืื ืคึผืึธืกืื ืืื ืื ืงืืืึทืจืงืืก ืกืขืจืืข!
ืืืขื ืืขืืืขืืึธืคึผืื ื Java ืืืงืจืึธืกืขืจืืืืกืขืก, ืขืก ืืื ืึธืคื ืืขืืืืืื ืึทื ะธ ืืขื ืขื ืืึทืืื ืืขืจ ืืื ืคืจืืึท ืึทืคึผืืก. ืืืจื ืคืขืืืงืืึทื, ืคึผืจืึธืืืจืึทืืขืจื ืืขื ื ืฆื ื ืืฆื ืื ืึทืคึผืืก ืืื ืืขื ืขื ืฉืืื ืืขืืืืื ื ืฆื, ืืืืึทื ืืขืจื ืขื ื ืืึท ืคืจืึทืืขืืืึธืจืงืก ืืื ืจืื ืืืืข ืงืึทืืคึผืึธืื ืึทื ืฅ ื ืขืื ืึท ืคึผืืึทืฅ ืคืื ืฆืืื. ืืืึทื ื ืืืจ ืืืขืื ืคึผืจืืืืจื ืฆื ืคืึทืจืคึผืึธืฉืขืืขืจื ืื ืึทื ืืืืืงืืื ื ืคืื ืขืืืขืืข ืคืึธืืงืก ืืื ืืืืึทืื ืืืจ ืืื ืฆื ืกืืืืึทืืืืื ืืึทืกืื ื ืืฆื ืื ืกืคึผืจืื ื ืึทืคึผื ืืื ื ืืึทืข ื ืืฆืืง ืคึฟืขืึดืงืืืื .
ืืื ืึท ืืืกื ืืขืจ ืืขืืึทื, ืืืจ ืืืขืื ืขืจืฉืืขืจ ืงืืงื ืืื ืื ืคืึทืจื ืขื ืืื ืืขืืึทืืืก ืคืื ืืื Quarkus ืฉืืืฆื ืกืคึผืจืื ื ืึทืคึผืืก ืฆื ืืืืึทืื ืกืคึผืจืื ื ืืขืืืขืืึธืคึผืขืจืก ืืื ืฆื ื ืืฆื ืื ืืืงืจืึธืคึผืจืึธืคืืืข ืึทืคึผื ืืื ืืืืขืจ ืืึธื-ืฆื-ืืึธื ืึทืจืืขื. ืืขืจื ืึธื ืืืจ ืืขืงื ืื ืืืงืจืึธืคึผืจืึธืคืืืข ืึทืคึผืืก, ืืืึธืก ืืขื ืขื ื ืืฆืืง ืคึฟืึทืจ ืกืคึผืจืื ื ืืขืืืขืืึธืคึผืขืจืก ืืืขื ืงืจืืืืืื ื ืืืงืจืึธ ืืึทืืื ืื ืืก.
ืคืืจืืืืก ืงืืืืจืงืืก? ืคืืจืกืืื, ืืึธืก ืืื ืืขืื ืงืึธืืืจืื ื, ืืึธืก ืืื, ืึธืืึทืืึทืืืง ืจืืืึธืืืื ื ืคืื ืงืืื ืขื ืืขืจืื ืืขื ืืื ืื ืืืงืจืึธืคึผืจืึธืคืืืข ืึทืคึผื, ืกืคึผืจืื ื ืึทืคึผื ืืื ืื ืืขืจืข ื'ืืื ืึทืคึผืืก, ืืืึธืก ืืื ืืืจืืืขืงืึธืื ืืื ืืืืื ืืืื ืืึทืคึฟืขื: mvn quarkus:dev. ืฆืืืืืื ืก, ืืึทืืจืึทืื ืืื ืืขืจ ืืขื ืืฉ ืืื ืกื (ืืืึธืก ืงืึทืืคึผืืืื ืคืื ืกืคึผืจืื ื, ืืืงืจืึธืคึผืจืึธืคืืืข ืืื ืืืฉืคึผืึท ืึทืคึผืืก ืืื ืึท ืืืื ืขืจื ื ืืฆื ืื ืืขืืืืจื GraalVM ืืืื) ืกืืึทืจืฅ ืืื ืืืืื 0.055 ืกืขืงืื ืืขืก ืืื ื ืขืื ืืืขืื 90 ืืขืืืืืืื ืคืื ืืึทืจืึทื (ืจืกืก) ืืืืฃ ืื ืจืขืกืืคืื ืึทืคึผืืึทืงืืืฉืึทื ืขื ืืคึผืืื ื. ืืขืจืฆื, ืืืื ืืึทืืืื ื ืืื ืืื ืืืจืืืขืงืึธืื ืืื ืืืืื ืืืื ืืึทืคึฟืขื: mvn package -Pnative.
ืืืจ ืืืขืื ื ืืฉื ืืืื ืืื ืืขืืึทื ืืืขืื ืืืงืจืึธืคึผืจืึธืคืืืข, ืึทืืืฅ ืฆื ืืขืืคึฟื ืกืคึผืจืื ื ืืขืืืขืืึธืคึผืขืจืก ืคึฟืึทืจืฉืืืื ืืื ืืื ืงืขื ืขื ื ืืฆื ืกืคึผืจืื ื ืึทืคึผืืก ืืื ืืืงืจืึธืคึผืจืึธืคืืืข ืึทืคึผืืก ืืื Quarkus.
ืงืึทื ืืืื ืขืจื ืืื ืงืืืขืจื ืขืืขืก
ืฆื ืืึทืืื ืืขื ืึทืจืืืงื ืคึผืฉืื, ืืืจ ืืืขืื ืืืืื ืืขืงื ืื ืืืื-ืืืจืื ืึทืกืคึผืขืงืฅ ืคืื ืฉืืืฆื ืืึธ. , ืืืืึทื ืขืก ืืื ืืืืืืืง ืฆื ืคึฟืึทืจืฉืืืื. Quarkus ืืื ืคึผืึทืืืฉืึทื ื ืืื ืึท Java ืึธื ืืืืื ืคึฟืึทืจ Kubernetes, ืขืก ืืื ืืืืืื ื ืฆื ืืื ืึทืืืื ืืึผืจืื ืงืึทื ืกืึทืืฉืึทื ืืื ืกืืึทืจืืึทืคึผ ืฆืืื ืคืื Java ืึทืคึผืืึทืงืืืฉืึทื ื ืืื ืืึทืืื ืื ืืก, ืืื, ืืื ืึท ืจืขืืืืืึทื, ืคืึทืจืืจืขืกืขืจื ืืืืขืจ ืืขืืืืืงืืึทื ืืืืฃ ืืขืจ ืืึทืืขืืึธืก ืืื ืจืขืืืฆืืจื ืื ืงืืืืขืืืืง ืงืึธืก.
ืงืืืึทืจืงืืก ืืืื Kubernetes ืจืขืกืืจืกื ืืื ืึธืคืคืขืจืก ืคึฟืึทืจ ืืืคึผืืืืืึทื ื ืืืืฃ Kubernetes ืืื Red Hat OpenShift ืคึผืืึทืืคืึธืจืืก. ืืื ืึทืืืฉืึทื, Quarkus ืืืฉืขื ืขืจืืืฅ ืืืืืึธืืึทืืืฉ ืื Dockerfile.jvm (JVM ืคึผืึทืงืงืึทืืื ื) ืืื Dockerfile.native (ืืขืืืืจื ืืืื ืขืจื ืคึผืึทืงืงืึทืืื ื) ืืขืงืขืก ืืืจืฃ ืฆื ืฉืึทืคึฟื ืงืึทื ืืืื ืขืจื.
ืฆืื ืกืืฃ, ืืืจื ืคืึธืืงืืกืื ื ืืืืฃ Kubernetes ืืื ืื ืฆืื ืืืคึผืืืืืึทื ื ืกืืืืืืข, Quarkus ืืื ื ืืฉื ื ืืฆื Java ืคืจืึทืืขืืืึธืจืงืก ืืื ืงืึทืกืขืก ืืืขื ืขื ืืขื ืคืึทื ืืงืฉืึทื ืึทืืืื ืืื ืืืคึผืืึทืืขื ืึทื ืืืืฃ ืืขืจ ืืืจืื ืคืื ืื Kubernetes ืคึผืืึทืืคืึธืจืืข ืืื. ืืืฉ 1 ืืื ืึท ืืึทืคึผืข ืคืื โโืื ืคืึทื ืืงืฉืึทื ืึทื ืงืึธืจืขืกืคึผืึธื ืืขื ืฅ ืฆืืืืฉื Kubernetes ืืื ืืืคึผืืฉ ื'ืืื ืคืจืึทืืขืืืึธืจืงืก ืืขื ืืฆื ืืืจื ืกืคึผืจืื ื ืืขืืืขืืึธืคึผืขืจืก.
ืืืฉ 1. ืืึทืคึผืข ืคืื โโืคืึทื ืืงืฉืึทื ืึทื ืงืึธืจืขืกืคึผืึธื ืืขื ืฅ ืฆืืืืฉื ื'ืืื ืคืจืึทืืขืืืึธืจืงืก ืืื ืงืืืขืจื ืขืืขืก.
ืคืึทื ืืงืฉืึทื ืึทื
ืืจืึทืืืฆืืึธื ืขื ืคืจืืืื ื ืฉืืืืื
Kubernetes
ืกืขืจืืืืก ืืคืืขืงืื ื
ืืืจืืงืึท
ืื ืก
ืงืึธื ืคืืืืจืึทืืืึธื
ืคืจืืืื ื ืงืืึธืื ืงืึธื ืคืื
ืงืึธื ืคืื ืืึทืคึผืก / ืกืขืงืจืขืฅ
ืืึทืกืข ืืึทืืึทื ืกืื ื
ืืขื ื (ืงืืืขื ื ืืืึทื)
ืกืขืจืืืืก, ืจืขืคึผืืึทืงืืืฉืึทื ืงืึธื ืืจืึธืืืขืจ (ืกืขืจืืืขืจ ืืืึทื)
ืงืึทืืคึผืืืืื ื ืืื ืืืืคื ืื ืงืึธื ืคึฟืื ืืขื ืืืึทืฉืคึผืื
ืืื ืืขื ืึทืจืืืงื ืืืจ ืึธืคึผืฉืืงื ืฆื , ืืื ืื ืกืคึผืจืื ื ืืื ืืืงืจืึธืคึผืจืึธืคืืืข ืึทืคึผืืก ืืื ืืคืืื ืืขืจ ืืขืืืืงืขืจ ื'ืืื ืงืืึทืก ืืขื ืขื ืืขื ืืฆื ืฆืืืึทืืขื. ืืขืจ ืงืึธื ืืื ืืขื ืืืึทืฉืคึผืื ืงืขื ืขื ืืืื ืงืึทืืคึผืืืื ืืื ืืืืคื ืคึฟืื ืื ืืึทืคึฟืขืื ืฉืืจื, ืืขื ืื README.md ืืขืงืข ืคึฟืึทืจ ืคืจืืื.
ืคืจืืืื ื ืคืจืึทืืขืืืึธืจืง ืึทืคึผืืก
ืืขืคึผืขื ืืขื ืกื ืื ืืืฉืขืงืฉืึทื
ืงืืืึทืจืงืืก ืฉืืืฆื ืึท ืงืืื ืคืื ืืื ืกืคึผืจืื ื ืืขืคึผืขื ืืขื ืกื ืื ืืืฉืขืงืฉืึทื (ืคืจืืืื ื ืื) ืึทืคึผืืก. ืืืื ืืืจ ืึทืจืืขื ืืื ืืืงืจืึธืคึผืจืึธืคืืืข, , ืืขืืึธืื ืืืจ ืืขื ื ืฉืืื ืืืืขืจ ืืึทืงืึทื ื ืืื CDI. ืืืืฃ ืื ืื ืืขืจืข ืืึทื ื, ืกืคึผืจืื ื ืืขืืืขืืึธืคึผืขืจืก ืงืขื ืขื ื ืืฆื ืื Quarkus Extension for Spring DI API ืฆื ืืขืจืืจืืืื ืงืึทืืคึผืึทืืึทืืืืึทืื ืืื ืกืคึผืจืื ื ืื. ืืืืฉืคืืื ืคืื ื ืืฆื ืื ืืขืฉืืืฆื Spring DI APIs ืืขื ืขื ืืขืืขืื ืืื ืืึทืืืข 2.
ะ ื ืืฆื ืืืืืข CDI ืืื Spring Dependency Injection. ืคึฟืึทืจ ืืขืจ ืืื ืคึฟืึธืจืืึทืฆืืข ืืื ืืืืฉืคืืื ืืืืฃ ืืขื ืืขืืข, ืืขื ืื Quarkus ืืืื ืืขืจืืคื .
ืืืฉ 2. ืืืืฉืคืืื ืคืื ื ืืฆื ืื ืืขืฉืืืฆื ืกืคึผืจืื ื ืื ืึทืคึผืืก.
ืฉืืืฆื ืกืคึผืจืื ื ืื ืคึฟืขืึดืงืืืื
ืขืงืกืึทืืคึผืืขืก
ืงืึธื ืกืืจืืงืืึธืจ ืื ืืืฉืขืงืฉืึทื
public PersonSpringController(
PersonSpringRepository personRepository, // injected
PersonSpringMPService personService) { // injected
this.personRepository = personRepository;
this.personService = personService;
}
ืคืขืื ืื ืืืฉืขืงืฉืึทื
@Autowired
@RestClient
SalutationRestClient salutationRestClient;
@Value("${fallbackSalutation}")
String fallbackSalutation;
@ ืงืึธื ืคืืืืจืึทืืืึธื
@Configuration
public class AppConfiguration {
@Bean(name = "capitalizeFunction")
public StringFunction capitalizer() {
return String::toUpperCase;
}
}
@Component("noopFunction")
public class NoOpSingleStringFunction implements StringFunction {
@Override
public String apply(String s) {
return s;
}
}
@Service
public class MessageProducer {
@Value("${greeting.message}")
String message;
public String getPrefix() {
return message;
}
}
ืืืขื ืคืจืืืืืืขืจืง
ืืืงืจืึธืคึผืจืึธืคืืืข ื ืืฆืขืจืก ืืืขืื ืืืืข ืึทื Quarkus ืฉืืืฆื JAX-RS, MicroProfile Rest Client, JSON-P ืืื JSON-B ืืื ืื ืขืจืฉืืืง ืืืขื ืคึผืจืึธืืจืึทืืืื ื ืืึธืืขื. ืคืจืืืื ื ืืขืืืขืืึธืคึผืขืจืก ืืืขืื ืืืื ืฆืืคืจืืื ืืื ืื ืืขืฆืืข ืฉืืืฆื ืคืื Quarkus ืคึฟืึทืจ ืื ืกืคึผืจืื ื ืืืขื ืึทืคึผื, ืกืคึผืขืฆืืขื REST ืื ืืขืจืคืืืกืื. ืขื ืืขื ืฆื Spring DI, ืืขืจ ืืืืคึผื ืฆืื ืคืื ืกืคึผืจืื ื ืืืขื ืึทืคึผื ืฉืืืฆื ืืื ืฆื ืืขืื ืกืคึผืจืื ื ืืขืืืขืืึธืคึผืขืจืก ืฆื ื ืืฆื ืกืคึผืจืื ื ืืืขื ืึทืคึผืืก ืืื ืงืึทื ืืืฉืึทื ืืงืฉืึทื ืืื ืืืงืจืึธืคึผืจืึธืคืืืข ืึทืคึผืืก. ืืืืฉืคืืื ืคืื ืืื ืฆื ื ืืฆื ืื ืืขืฉืืืฆื ืกืคึผืจืื ื ืืืขื ืึทืคึผืืก ืืขื ืขื ืฆืืืขืฉืืขืื ืืื ืืืฉ 3, ืืื ืืขืจ ืืื ืคึฟืึธืจืืึทืฆืืข ืืื ืืืืฉืคืืื ืืืืฃ ืืขื ืืขืืข ืงืขื ืขื ืืืื ืืขืคึฟืื ืขื ืืื ืื Quarkus ืืืืึธืจืืึทื ืืขืจืืคื .
ืืืฉ 3. ืืืืฉืคืืื ืคืื ื ืืฆื ืื ืฉืืืฆื ืกืคึผืจืื ื ืืืขื ืึทืคึผืืก.
ืฉืืืฆื ืกืคึผืจืื ื ืืืขื ืคึฟืขืึดืงืืืื
ืขืงืกืึทืืคึผืืขืก
@RestController
@RequestMapping
@RestController
@RequestMapping("/person")
public class PersonSpringController {
...
...
...
}
@GetMapping
@PostMapping
@PutMapping
@DeleteMapping
@PatchMapping
@RequestParam
@RequestHeader
@MatrixVariable
@PathVariable
@CookieValue
@RequestBody
@ ืขื ืืคืขืจืกืืืืืก
@ExceptionHandler
@RestControllerAdvice (ืคึผืึทืจืืืืืฉ)
@GetMapping(path = "/greet/{id}",
produces = "text/plain")
public String greetPerson(
@PathVariable(name = "id") long id) {
...
...
...
}
ืคืจืืืื ื ืืึทืืึท ืืืฉืคึผืึท
ืืืงืจืึธืคึผืจืึธืคืืืข ื ืืฆืขืจืก ืืืขืื ืืืื ืึธืคึผืฉืึทืฆื ืึทื Quarkus ืฉืืืฆื JPA ื ืืฆื ืื Hibernate ORM. ืขืก ืืื ืืืื ืืื ื ืืึทืขืก ืคึฟืึทืจ ืกืคึผืจืื ื ืืขืืืขืืึธืคึผืขืจืก: Quarkus ืฉืืืฆื ืคึผืจืึธืกื ืกืคึผืจืื ื ืืึทืืึท ืืืฉืคึผืึท ืึทื ืึทืืืืฉืึทื ื ืืื ืืืืคึผืก. ืืืืฉืคืืื ืคืื ื ืืฆื ืื ืืขืฉืืืฆื Spring Data JPA APIs ืืขื ืขื ืืขืืขืื ืืื ืืึทืืืข 4.
ะ Spring Data JPA APIs ืืขื ืขื ืืขื ืืฆื ืืื ืืขืจ ืืื ืคึฟืึธืจืืึทืฆืืข ืืื ืื ืืืฆื ืืื ืื Quarkus ืืืืึธืจืืึทื ืืขืจืืคึฟื .
ืืืฉ 4. ืืืืฉืคืืื ืคืื ื ืืฆื ืืขืฉืืืฆื ืกืคึผืจืื ื ืืึทืืึท ืืืฉืคึผืึท ืึทืคึผืืก.
ืฉืืืฆื ืกืคึผืจืื ื ืืึทืืึท ืืืฉืคึผืึท ืคึฟืขืึดืงืืืื
ืขืงืกืึทืืคึผืืขืก
CrudRepository
public interface PersonRepository
extends JpaRepository,
PersonFragment {
...
}
ืจืืคึผืึทืืึทืืึธืจื
JpaRepository
PagingAndSortingRepository
public class PersonRepository extends
Repository {
Person save(Person entity);
Optional findById(Person entity);
}
ืจืืคึผืึทืืึทืืึธืจื ืคืจืึทืืืึทื ืฅ
public interface PersonRepository
extends JpaRepository,
PersonFragment {
...
}
ืืขืจืืืืื ืึธื ืคึฟืจืขื ืืขืืืึธืืก
public interface PersonRepository extends CrudRepository {
List findByName(String name);
Person findByNameBySsn(String ssn);
Optional
findByNameBySsnIgnoreCase(String ssn);
Boolean existsBookByYearOfBirthBetween(
Integer start, Integer end);
}
ืืึทื ืืฆืขืจ-ืืืคืืื ื ืงืืืืจืื
public interface MovieRepository
extends CrudRepository {
Movie findFirstByOrderByDurationDesc();
@Query("select m from Movie m where m.rating = ?1")
Iterator findByRating(String rating);
@Query("from Movie where title = ?1")
Movie findByTitle(String title);
}
ืืืงืจืึธืคึผืจืึธืคืืืข ืึทืคึผืืก
ืฉืืื ืืึธืืขืจืึทื ืฅ
ืฉืืื ืืึธืืขืจืึทื ืฅ ืงืึทื ืกืืจืึทืงืฉืึทื ื ืืขื ืขื ืืืืขืจ ืืืืืืืง ืคึฟืึทืจ ืคึผืจืขืืืขื ืืื ื ืงืึทืกืงืืืืื ื ืคืืืืืขืจื ืืื ืงืจืืืืืื ื ืคืึทืจืืึธืืืขื ืืืงืจืึธืกืขืจืืืืก ืึทืจืงืึทืืขืงืืฉืขืจื. ืคืจืืืื ื ืืขืืืขืืึธืคึผืขืจืก ืืึธืื ืฉืืื ื ืืฆื ืงืจืืึทื-ืืจืืืงืขืจื ืคึฟืึทืจ ืฉืืื ืืึธืืขืจืึทื ืฅ ืคึฟืึทืจ ืคืืืข ืืึธืจื. . ืึธืืขืจ, Hystrix ืืื ื ืืฉื ืืขืจืืืึทื ืืืงื ืคึฟืึทืจ ืึท ืืึทื ื ืฆืืึทื, ืึธืืขืจ ืืืงืจืึธืคึผืจืึธืคืืืข ืก ืฉืืื ืืึธืืขืจืึทื ืฅ ืืื ืืืฆื ืึทืงืืืืืื ืืขืืืขืืึธืคึผืื ื ืืื ืืื ืขืืืขืืข ืืึธืจื ืคืื ืคึผืจืึธืืืงืฆืืข ื ืืฆื ืืื ืืขืจ ืขืก. ืืขืจืืืขืจ, ืฆื ืคึฟืึทืจืืขืกืขืจื ืื ืจืืืืืึทืืืืึทืื ืคืื ืกืขืจืืืืกืขืก ืืื Quarkus, ืขืก ืืื ืจืขืงืึทืืขื ืืื ืฆื ื ืืฆื ืื MicroProfile Fault Tolerance APIs, ืืืืฉืคืืื ืคืื ืืืึธืก ืืขื ืขื ืืขื ืืฆื ืืื ืืืฉ 5. ืคึฟืึทืจ ืืขืจ ืืื ืคึฟืึธืจืืึทืฆืืข ืืืขืื ืืขื, ืืขื ืื Quarkus ืืึทื ืืึทื .
ืืืฉ 5. ืืืืฉืคืืื ืคืื ื ืืฆื ืืขืฉืืืฆื ืืืงืจืึธืคึผืจืึธืคืืืข ืฉืืื ืืึธืืขืจืึทื ืฅ ืึทืคึผืืก.
ืืืงืจืึธืคึผืจืึธืคืืืข ืฉืืื ืืึธืืขืจืึทื ืฅ ืคึฟืขืึดืงืืืื
ืืึทืฉืจืืึทืืื ื
ืขืงืกืึทืืคึผืืขืก
@ืึทืกืื ืืฉืจืึธื ืึธืืก
ืขืงืกืึทืงืืืืื ื ืืึธืืืง ืืื ืึท ืืึทืืื ืืขืจ ืคืึธืืขื
@Asynchronous
@Retry
public Future<String> getSalutation() {
...
return future;
}
@ืืืืงืืขืึทื
ืืึทืืจืขื ืขืฆื ืื ื ืืืขืจ ืคืื ืกืืืืึทืืืืื ืืึทืก ืจืืงืืืขืก
@Bulkhead(5)
public void fiveConcurrent() {
makeRemoteCall(); //...
}
@ืกืืจืงืืืืืจืขืึทืงืขืจ
ืกืืึทืจื ืืืจืืคืึทื ืืึทื ืืืื ื ืืื ืึธืคึผืืื ืคืื ืคืืืืืขืจื
@CircuitBreaker(delay=500 // milliseconds
failureRatio = .75,
requestVolumeThreshold = 20,
successThreshold = 5)
@Fallback(fallbackMethod = "fallback")
public String getSalutation() {
makeRemoteCall(); //...
}
@ืคืึทืืืึทืง
ืจืืคื ืึธืืืขืจื ืึทืืืื ืืึธืืืง ืืื ืคืึทื ืคืื ืืืจืืคืึทื
@Timeout(500) // milliseconds
@Fallback(fallbackMethod = "fallback")
public String getSalutation() {
makeRemoteCall(); //...
}
public String fallback() {
return "hello";
}
ืคืจืืืืจื ืืืืืขืจ ืืืืฃ ืืขืื ืืืจืืคืึทื
@Retry(maxRetries=3)
public String getSalutation() {
makeRemoteCall(); //...
}
ืืืจืืคืึทื ืงืึธื ืืจืึธื ืืืืืึทืื
@Timeout(value = 500 ) // milliseconds
@Fallback(fallbackMethod = "fallback")
public String getSalutation() {
makeRemoteCall(); //...
}
ืืฉืขืง ืกืขืจืืืืกืขืก (ืกืขืจืืืืก ืืขืืื ื)
Kubernetes ืคึผืืึทืืคืึธืจืืก ืืึธื ืืืึธืจ ืื ืืขืืื ื ืคืื ืงืึทื ืืืื ืขืจื ื ืืฆื ืกืคึผืขืฆืืขื ืืึทืืื ืื ืืก. ืฆื ืืึธืื ืื ืึทื ืืขืจืืืืื ื ืคึผืืึทืืคืึธืจืืข ืฆื ืืึธื ืืืึธืจ ืกืขืจืืืืกืขืก, ืกืคึผืจืื ื ืืขืืืขืืึธืคึผืขืจืก ืืืคึผืืงืื ื ืืฆื ืึท ืื ืื HealthIndicator ืืื Spring Boot Actuator. ืืื Quarkus, ืืึธืก ืงืขื ืขื ืืืื ืืขืืื ืืื ืืืงืจืึธืคึผืจืึธืคืืืข ืืขืืื ื, ืืืึธืก ืืืจื ืคืขืืืงืืึทื ืคึผืขืจืคืึธืจืื ืึท ืืืืืื ืึทืก ืืฉืขืง, ืึธืืขืจ ืงืขื ืขื ืืืื ืงืึทื ืคืืืืขืจื ืฆื ืกืืืืึทืืืืื ืืึทืกืื ืงืึธื ืืจืึธืืืจื ืืขืื ืืื ืืจืืืืงืืึทื. ืืืืฉืคืืื ืคืื ืืื ืฆื ื ืืฆื ืื ืฉืืืฆื ืืืงืจืึธืคึผืจืึธืคืืืข ืืขืืื ื ืึทืคึผืืก ืืขื ืขื ืฆืืืขืฉืืขืื ืืื ืืืฉ 6, ืืื ื ืึธื ืืื ืคึฟืึธืจืืึทืฆืืข ืืื ืฆืืืขืฉืืขืื ืืื ืื Quarkus ืืึทื ืืึทื .
ืืืฉ 6: ืืึทื ืืฅ ืืืืฉืคืืื ืคืื ืืขืฉืืืฆื ืืืงืจืึธืคึผืจืึธืคืืืข ืืขืืื ื ืึทืคึผืืก.
ืืืงืจืึธืคึผืจืึธืคืืืข ืืขืืื ื ืคึฟืขืึดืงืืืื
ืืึทืฉืจืืึทืืื ื
ืขืงืกืึทืืคึผืืขืก
@ืืขืื ืก
ืื ืคึผืืึทืืคืึธืจืืข ืจืขืืึธืึธื ืืืจืืคืึทื ืงืึทื ืืึทืืึทื ืืืื ืึทืคึผืืึทืงืืืฉืึทื ื
ืกืืฃ ืคืื ื:
ืืึทืืขืืึธืก: 8080/ืืขืืื ื/ืืขืื
@Liveness
public class MyHC implements HealthCheck {
public HealthCheckResponse call() {
...
return HealthCheckResponse
.named("myHCProbe")
.status(ready ? true:false)
.withData("mydata", data)
.build();
}
@ืืจืืืืงืืื
ืื ืคึผืืึทืืคืึธืจืืข ืืืขื ื ืืฉื ืฉืืงื ืคืึทืจืงืขืจ ืฆื ืงืึทื ืืืื ืขืจืืขื ืึทืคึผืืึทืงืืืฉืึทื ื ืืืื ืขืก ืืื ื ืืฉื ืืจืืื
ืกืืฃ ืคืื ื:
ืืึทืืขืืึธืก: 8080 / ืืขืืื ื / ืืจืืื
@Readiness
public class MyHC implements HealthCheck {
public HealthCheckResponse call() {
...
return HealthCheckResponse
.named("myHCProbe")
.status(live ? true:false)
.withData("mydata", data)
.build();
}
ืืขืืจืืงืก
ืึทืคึผืคึผืืืงืึทืืืึธื ืก ืฆืืฉืืขืื ืืขืืจืืงืก ืคึฟืึทืจ ืึทืคึผืขืจืืืฉืึทื ืึทื ืฆืืืขืงื (ืฆื ืืึธื ืืืึธืจ ืคืึธืจืฉืืขืืื ื SLAs) ืึธืืขืจ ื ืื-ืึทืคึผืขืจืืืฉืึทื ืึทื ืฆืืืขืงื (ืืขืฉืขืคื SLAs). ืกืคึผืจืื ื ืืขืืืขืืึธืคึผืขืจืก ืฆืืฉืืขืื ืืขืืจืืงืก ื ืืฆื ืกืคึผืจืื ื ืืึธืึธื ืึทืงืืืึทืืึธืจ ืืื ืืืงืจืึธืืขืืขืจ. ืืื ืงืขืจ, Quarkus ื ืืฆื ืืืงืจืึธืคึผืจืึธืคืืืข ืืขืืจืืงืก ืฆื ืฆืืฉืืขืื ืืึทืกืขืืื ืข ืืขืืจืืงืก (ืืืฉืืื ืืื ืึธืคึผืขืจืืืืื ื ืกืืกืืขื), ืคืึทืจืงืืืคืขืจ ืืขืืจืืงืก (ืงืืืึทืจืงืืก) ืืื ืึทืคึผืืึทืงืืืฉืึทื ืืขืืจืืงืก. ืืืงืจืึธืคึผืจืึธืคืืืข ืืขืืจืืงืก ืจืืงืืืืืขืจื ืึทื ืื ืืืคึผืืึทืืขื ืืืืฉืึทื ืฉืืืฆื JSON ืืื OpenMetrics (ืคึผืจืึธืืขืืืขืืก) ืจืขืืืืืึทื ืคึฟืึธืจืืึทืืืจืื ืืขื. ืืืืฉืคืืื ืคืื ื ืืฆื ืื MicroProfile Metrics API ืืขื ืขื ืืขืืขืื ืืื ืืึทืืืข 7.
ะ ืืืงืจืึธืคึผืจืึธืคืืืข ืืขืืจืืงืก ืืขื ืขื ืืขื ืืฆื ืฆื ืฆืืฉืืขืื ืึทืคึผืืึทืงืืืฉืึทื ืืขืืจืืงืก. ืคึฟืึทืจ ืืขืจ ืืื ืคึฟืึธืจืืึทืฆืืข, ืืขื ืื Quarkus ืืึทื ืืึทื .
ืืืฉ 7. ืืืืฉืคืืื ืคืื ื ืืฆื ืืืงืจืึธืคึผืจืึธืคืืืข ืืขืืจืืงืก ืึทืคึผืืก.
ืืืงืจืึธืคึผืจืึธืคืืืข ืืขืืจืืง ืคึฟืขืึดืงืืืื
ืืึทืฉืจืืึทืืื ื
ืขืงืกืึทืืคึผืืขืก
@ืืขืจืขืื ื
ืืื ืึธืืฅ ืึท ืืึธืืืึทื ืง ืืึธืืืึทื ืง ืืืึธืก ืฆืืืื ืื ื ืืืขืจ ืคืื ืืื ืึท ืึทื ืึธืืืืืื ืืืืคืขืฅ ืืื ืืขืจืืคื
@Counted(name = "fallbackCounter",
displayName = "Fallback Counter",
description = "Fallback Counter")
public String salutationFallback() {
return fallbackSalutation;
}
@ConcurrentGauge
ืืื ืึธืืฅ ืึท ืืึธืก ืืืึธืก ืงืึทืื ืฅ ืื ื ืืืขืจ ืคืื ืงืึทื ืงืขืจืึทื ื ืจืืคื ืฆื ืึท ืึทื ืึทืืืืืื ืืืืคืขืฅ
@ConcurrentGuage(
name = "fallbackConcurrentGauge",
displayName="Fallback Concurrent",
description="Fallback Concurrent")
public String salutationFallback() {
return fallbackSalutation;
}
@ืืึธืก
ืืื ืึธืืฅ ืึท ืืึธืก ืกืขื ืกืขืจ ืืืึธืก ืืขืกืื ืื ืืืขืจื ืคืื ืึท ืึทื ืึทืืืืืื ืืืืคืขืฅ
@Metered(name = "FallbackGauge",
displayName="Fallback Gauge",
description="Fallback frequency")
public String salutationFallback() {
return fallbackSalutation;
}
@ืืขืืขืจืขื
ืืื ืึธืืฅ ืึท ืืขืืขืจ ืกืขื ืกืขืจ ืืืึธืก ืืึธื ืืืึธืจืก ืื ืจืืคื ืึธืคืืงืืึทื ืคืื ืึท ืึทื ืึทืืืืืื ืืืืคืขืฅ
@Metered(name = "MeteredFallback",
displayName="Metered Fallback",
description="Fallback frequency")
public String salutationFallback() {
return fallbackSalutation;
}
ืึทื ืึทื ืึธืืึทืฆืืข ืืื ืืื ืคึฟืึธืจืืึทืฆืืข ืืืขืื ืืขืืึทืืึทืืึท ืืืขื ืึท ืืงืฉื ืืื ืืืงืืืขื ืฆื ืึทืจืืึทื ืึธืืขืจ ืคึผืจืึธืืืฆืืจื ืึท ืืขืืจืืง
@Metric
@Metered(name = "MeteredFallback",
displayName="Metered Fallback",
description="Fallback frequency")
public String salutationFallback() {
return fallbackSalutation;
}
ืื ืืืงืืืฅ ืึท ืืืึทืืขืจ ืืืึธืก ืืจืึทืงืก ืื ืืขืืืืขืจ ืคืื ืึท ืึทื ืึทืืืืืื ืืืืคืขืฅ
@Timed(name = "TimedFallback",
displayName="Timed Fallback",
description="Fallback delay")
public String salutationFallback() {
return fallbackSalutation;
}
ืืขืืจืืง ืขื ืืคึผืึธืื ืฅ
ืึทืคึผืคึผืืืงืึทืืืึธื ืืขืืจืืงืก :8080/ืืขืืจืืงืก/ืึทืคึผืืึทืงืืืฉืึทื
ืืงืขืจืืืง ืืขืืจืืงืก :8080/ืืขืืจืืงืก/ืืึทืืข
ืคืึทืจืงืืืคืขืจ ืืขืืจืืงืก :8080/ืืขืืจืืงืก/ืคืึทืจืงืืืคืขืจ
ืึทืืข ืืขืืจืืงืก :8080/ืืขืืจืืง
ืืืงืจืึธืคึผืจืึธืคืืืข ืจืขืกื ืงืืืขื ื
ืืืงืจืึธืกืขืจืืืืกืขืก ืึธืคื ืฆืืฉืืขืื RESTful ืขื ืืคึผืึธืื ืฅ ืืืึธืก ืืึทืจืคื ืงืึธืจืึทืกืคึผืึทื ืืื ื ืงืืืขื ื ืึทืคึผืืก ืฆื ืึทืจืืขืื ืืื. ืฆื ื ืืฆื RESTful ืขื ืืคึผืึธืื ืฅ, ืกืคึผืจืื ื ืืขืืืขืืึธืคึผืขืจืก ืืืคึผืืงืื ื ืืฆื RestTemplate. Quarkus ืึธืคืคืขืจืก ืืืงืจืึธืคึผืจืึธืคืืืข ืจืขืกื ืงืืืขื ื ืึทืคึผืืก ืฆื ืกืึธืืืืข ืืขื ืคึผืจืึธืืืขื, ืืืืฉืคืืื ืคืื ื ืืฆื ืคืื ืืืึธืก ืืขื ืขื ืืขืืขืื ืืื ืืืฉ 8.
ะ ืื ื ืืฆื ืคืื RESTful ืขื ืืคึผืึธืื ืฅ ืืื ืืืจืืืขืงืึธืื ืืื ืื ืืืงืจืึธืคึผืจืึธืคืืืข ืจืขืกื ืงืืืขื ื. ืืขืจ ืืื ืคึฟืึธืจืืึทืฆืืข ืืื ืืืืฉืคืืื ืืืืฃ ืืขื ืืขืืข ืงืขื ืขื ืืืื ืืขืคึฟืื ืขื ืืื ืื Quarkus ืืึทื ืืึทื .
ืืืฉ 8. ืืืืฉืคืืื ืคืื ื ืืฆื ืืืงืจืึธืคึผืจืึธืคืืืข ืจืขืกื ืงืืืขื ื ืึทืคึผืืก.
ืืืงืจืึธืคึผืจืึธืคืืืข ืจืขืกื ืงืืืขื ื ืคึฟืขืึดืงืืืื
ืืึทืฉืจืืึทืืื ื
ืขืงืกืึทืืคึผืืขืก
@RegisterRestClient
ืจืขืืืฉืืกืืขืจื ืึท ืืืืคึผื Java ืฆืืืื ื ืืื ืึท REST ืงืืืขื ื
@RegisterRestClient
@Path("/")
public interface MyRestClient {
@GET
@Produces(MediaType.TEXT_PLAIN)
public String getSalutation();
}
@RestClient
ืืึทืจืงืก ืื ืืืคึผืืึทืืขื ืืืืฉืึทื ืคืื ืึท ืืืึทืฉืคึผืื ืคืื ืึท ืืืืคึผื REST ืงืืืขื ื ืฆืืืื ื
@Autowired // or @Inject
@RestClient
MyRestClient restClient;
ืื ืืืึธืงืึทืืืึธื
ืจืืคื ืึท REST ืขื ืืคึผืืื ื
System.out.println(
restClient.getSalutation());
mp-rest/url
ืกืคึผืขืฆืืคืืฆืืจื ืื REST ืขื ืืคึผืืื ื
application.properties:
org.example.MyRestClient/mp-rest/url=
http://localhost:8081/myendpoint
ืจืขืืืืืึทืื ืคืื
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