Bean method 'elasticsearchTemplate' not able to find in configuration

Getting Below Error:

APPLICATION FAILED TO START

Description:

Field template in com.rahul.es.api.service.QueryDSLService required a bean of type 'org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate' that could not be found.

The injection point has the following annotations:
	- @org.springframework.beans.factory.annotation.Autowired(required=true)

The following candidates were found but could not be injected:
	- Bean method 'elasticsearchTemplate' in 'ElasticsearchDataConfiguration.RestClientConfiguration' not loaded because @ConditionalOnMissingBean (names: elasticsearchTemplate types: org.springframework.data.elasticsearch.core.ElasticsearchOperations; SearchStrategy: all) found beans of type 'org.springframework.data.elasticsearch.core.ElasticsearchOperations' elasticsearchTemplate and found beans named elasticsearchTemplate


Action:

Consider revisiting the entries above or defining a bean of type 'org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate' in your configuration.

EsConfig.java

@Configuration(proxyBeanMethods=false)
@EnableElasticsearchRepositories(basePackages = "com.rahul.es.api.repository")
@ComponentScan(basePackages = { "com.rahul.es.api.service" })
public class EsConfig {

	@Bean
    public RestHighLevelClient client() {
        ClientConfiguration clientConfiguration 
            = ClientConfiguration.builder()
                .connectedTo("localhost:9200")
                .build();
 
        return RestClients.create(clientConfiguration).rest();
    }
 
    @Bean
    public ElasticsearchOperations elasticsearchTemplate() {
        return new ElasticsearchRestTemplate(client());
    }
}

QueryDSLService

@Service
public class QueryDSLService {

	@Autowired
	private ElasticsearchRestTemplate template;

	public List<Customer> searchMultipleField(String firstname, int age) {

		QueryBuilder query = QueryBuilders.boolQuery().must(QueryBuilders.matchQuery("firstname", firstname))
				.must(QueryBuilders.matchQuery("age", age));

		NativeSearchQuery nativeSearchQuery = new NativeSearchQueryBuilder().withQuery(query).build();
		List<Customer> customers = template.queryForList(nativeSearchQuery, Customer.class);
		return customers;
	}

	public List<Customer> getCustomerSearchData(String input) {
		String search = ".*" + input + ".*";
		SearchQuery searchQuery = new NativeSearchQueryBuilder()
				.withFilter(QueryBuilders.regexpQuery("firstname", search)).build();
		List<Customer> customers = template.queryForList(searchQuery, Customer.class);
		return customers;
	}

	public List<Customer> multiMatchQuery(String text) {
		SearchQuery searchQuery = new NativeSearchQueryBuilder().withQuery(QueryBuilders.multiMatchQuery(text)
				.field("firstname").field("lastname").type(MultiMatchQueryBuilder.Type.BEST_FIELDS)).build();
		List<Customer> customers = template.queryForList(searchQuery, Customer.class);
		return customers;

	}

}

RestController

@SpringBootApplication
@RestController
public class SpringbootElasticsearchQuerydslApplication {
	
	@Autowired
	private QueryDSLService service;

	@GetMapping("/serachMultiField/{firstname}/{age}")
	public List<Customer> serachByMultiField(@PathVariable String firstname, @PathVariable int age) {
		return service.searchMultipleField(firstname, age);
	}

	@GetMapping("/customSearch/{firstName}")
	public List<Customer> getCustomerByField(@PathVariable String firstName) {
		return service.getCustomerSearchData(firstName);
	}

	
	/**Based on wildcard method */
	@GetMapping("/search/{text}")
	public List<Customer> doMultimatchQuery(@PathVariable String text) {
		return service.multiMatchQuery(text);
	}

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

}

Try to add bean name as the docs says https://docs.spring.io/spring-data/elasticsearch/docs/current/reference/html/#elasticsearch.clients

@Bean(name = { "elasticsearchOperations", "elasticsearchTemplate" })
public ElasticsearchTemplate elasticsearchTemplate() throws UnknownHostException {
    return new ElasticsearchTemplate(elasticsearchClient());
}

Instead of injecting bean of ElasticsearchOperations, you need to inject ElasticsearchRestTemplate as the error clearly states and change the beanName from elasticsearchTemplate to elasticsearchRestTemplate as well.

    @Bean
    public ElasticsearchRestTemplate elasticsearchRestTemplate()
    {
        return new ElasticsearchRestTemplate(client());
    }

Note: I've tested it on my side as I've just faced same issue.