获取以下错误：
应用程序启动失败
说明：
com.rahul.es.api.service.querydslservice中的字段模板需要找不到类型为“org.springframework.data.elasticsearch.core.elasticsearchrestemplate”的bean。
注入点具有以下注解：-@org.springframework.beans.factory.annotation.autowired（required=true）
已找到以下候选对象，但无法注入：“'elasticsearchdataconfiguration.restclientconfiguration'中的bean方法'elasticsearchtemplate'未加载，因为@conditionalonmissingbean（名称：elasticsearchtemplate types:org.springframework.data.elasticsearch.core.elasticsearchoperations；searchstrategy:all）找到了“org.springframework.data.elasticsearch.core.elasticsearchoperations”elasticsearchtemplate类型的bean，并找到了名为elasticsearchtemplate的bean
行动：
考虑重新访问上面的条目或在配置中定义类型为“org.springframework.data.elasticsearch.core.elasticsearchrestemplate”的bean。
esconfig.java文件

@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());
    }
}

查询服务

@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;
    }
}

REST控制器

@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);
    }
}