检查提供的端点是否正确:在使用外部服务查询时,必须提供正确的端点。检查您的代码中的端点是否正确。
检查网络连接:确保您的应用程序可以连接外部服务。如果您的网络连接存在问题,可能会导致端点无效。
检查授权凭证:如果您需要授权才能访问外部服务,则必须提供正确的凭据。检查您的代码中的凭据是否正确。
示例代码(使用AWS SDK for Java v2):
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.elasticsearch.ElasticsearchClient;
import software.amazon.awssdk.services.elasticsearch.ElasticsearchClientBuilder;
import software.amazon.awssdk.services.elasticsearch.model.*;
public class AWSElasticSearchExample {
public static void main(String[] args) {
String endpoint = "https://my-elastic-search-endpoint.us-east-1.es.amazonaws.com";
ElasticsearchClientBuilder builder = ElasticsearchClient.builder()
.region(Region.US_EAST_1)
.endpointOverride(URI.create(endpoint));
ElasticsearchClient client = builder.build();
try {
SearchRequest searchRequest = SearchRequest.builder()
.query(Query.builder().queryString("some text").build())
.build();
SearchResponse response = client.search(searchRequest);
System.out.println(response.toString());
} catch (ElasticsearchException e) {
if (e.getMessage().contains("Invalid endpoint provided")) {
System.out.println("Invalid endpoint provided: " + endpoint);
} else {
e.printStackTrace();
}
}
}
}