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##Classic Hello World println "Hello World" println "Hello World 2"

//for loop def value = { println it } 1.upto(5,value) //alternative to above for loop

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@EnableAutoConfiguration
@ComponentScan
@Configuration 
public class Application{
  //main method
}

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public class Order {

    @NotBlank(groups = {ValidationCheckOrder.class})
    private String orderId;

    @Email(groups = {ValidationCheckEmail.class})
    @NotBlank(groups = {ValidationCheckEmail.class})
    private String email;

}

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		<dependency>
			<groupId>com.alibaba.csp</groupId>
			<artifactId>sentinel-annotation-aspectj</artifactId>
			<version>1.8.0</version>
		</dependency>
		<dependency>
			<groupId>com.alibaba.csp</groupId>
			<artifactId>sentinel-core</artifactId>
			<version>1.8.0</version>
		</dependency>

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@Service
public class TestService {

	@SentinelResource(value = "getResponseFromFallback", fallback = "fallbackTestMethod", defaultFallback = "defaultFallback")
	public String getResponseFromFallback(int i) {
		if (i == 0) {
			throw new IllegalArgumentException("Error occurred");
		}
		return "success";
	}

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@Configuration
public class TestConfiguration {
	
	@Bean
	public SentinelResourceAspect sentinelResourceAspect() {
		return new SentinelResourceAspect();
	}
}

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@Configuration
public class TestConfiguration {
	
	  @Bean
	  public SentinelResourceAspect sentinelResourceAspect() {
		  return new SentinelResourceAspect();
	  }
  
    @PostConstruct
    public void init() {

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@EnableEurekaServer
@SpringBootApplication
public class EurekaServerApplication {

	public static void main(String[] args) {
		SpringApplication.run(EurekaServerApplication.class, args);
	}
}

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server:
  port: 8761 #default port where discovery client is registered
 
eureka:
  client:
    registerWithEureka: false   
    fetchRegistry: false
  server:
    waitTimeInMsWhenSyncEmpty: 0    

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client:
    serviceUrl:
      defaultZone: http://127.0.0.1:8761/eureka/ #eureka endpoint