Unable to import #HystrixCommand - spring

Question

I am learning microservices. Therefore to ensure fault tolerance I wanted to use hystrix.
I use springboot with maven for this implementation. I followed a tutorial to make the implementation and have tried adding various dependencies in the pom.xml. However it wasn't successful. The #HystrixCommand is unable to be imported for the usage. I have attached the sample error shown here below. My micro service application code looks like below.
My Pom.XML file looks like this:
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.7</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>io.javabrains</groupId>
<artifactId>movie-catalog-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>movie-catalog-service</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>17</java.version>
<spring-cloud.version>2020.0.3</spring-cloud.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>16</source>
<target>16</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
The main method
package io.javabrains.moviecatalogservice;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.hystrix.EnableHystrix;
import org.springframework.context.annotation.Bean;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.reactive.function.client.WebClient;
#SpringBootApplication
#EnableEurekaClient
#EnableHystrix
public class MovieCatalogServiceApplication {
#Bean
#LoadBalanced
public RestTemplate getRestTemplate() {
HttpComponentsClientHttpRequestFactory clientHttpRequestFactory = new HttpComponentsClientHttpRequestFactory();
clientHttpRequestFactory.setConnectTimeout(3000);
return new RestTemplate(clientHttpRequestFactory);
}
public static void main(String[] args) {
SpringApplication.run(MovieCatalogServiceApplication.class, args);
}
}
The controller/ resource class
package io.javabrains.moviecatalogservice.resources;
import com.netflix.discovery.DiscoveryClient;
import io.javabrains.moviecatalogservice.models.CatalogItem;
import io.javabrains.moviecatalogservice.models.Movie;
import io.javabrains.moviecatalogservice.models.Rating;
import io.javabrains.moviecatalogservice.models.UserRating;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.reactive.function.client.WebClient;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;
//How to make it REST... Just add the annotation
//So whenever a request is made, it checks the controller for any action to be done
#RestController
//Further to say springboot to treat this as api which is accessible at /catalog/something
#RequestMapping("/catalog")
public class MovieCatalogResource {
#Autowired //I am basically telling spring that somebody has a BEAN somewhere, offsitre restTempltae//GET ME THT THING
private RestTemplate restTemplate;
//
// #Autowired
// private DiscoveryClient client;
//FOR WEB CLIENT
#Autowired
private WebClient.Builder webClientBuilder;
#RequestMapping("/{userId}") //userId is a variable and it will passed
#HystrixCommand(fallbackMethod = "getFallBackCatalog")//teliing hsyutrix that getCatalog shouldnt brak the limit. If it breaks, call getFallBackCatalog
public List<CatalogItem> getCatalog(#PathVariable("userId") String userId){
UserRating ratings = restTemplate.getForObject("http://RATING-DATA-SERVICE/ratingsdata/user/" + userId, UserRating.class);
return ratings.getRatings().stream().map(rating -> {
System.out.println(rating.getMovieId());
Movie movie = restTemplate.getForObject("http://MOVIE-INFO-SERVICE/movies/"+rating.getMovieId(), Movie.class);
return new CatalogItem(movie.getName() , "Test", rating.getRating());
})
.collect(Collectors.toList());
}
public List<CatalogItem> getFallBackCatalog(#PathVariable("userId") String userId){
return Arrays.asList(new CatalogItem("No movie", "", 0));//returning default list
}
}
However, the problem that I get is that I am unable to import the #HystrixCommand as its not getting recognized

Answer 1

Add version in this dependency. Just like this
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
<version>1.4.7.RELEASE</version>
</dependency>