java - 将 springboot java RestHighLevelClient 连接到 aws elasticsearch

Question

配置：

private static final String HOST = "search-qas-sam-zxbalglrksamjfcazl3zmkiiq7.ap-south-1.es.amazonaws.com";
private static final int PORT = 443; // tries 9200, 9300, 80
private static final String PROTOCOL = "https";

@Bean
public RestHighLevelClient client() {
    final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
    credentialsProvider.setCredentials(AuthScope.ANY,
            new UsernamePasswordCredentials("myusername", "mypassword"));

    RestClientBuilder builder = RestClient.builder(new HttpHost( HOST, PORT, PROTOCOL))
            .setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() {
                @Override
                public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) {
                    return httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
                }
            });

当连接到我的本地机器上的 ElasticSearch 时，它在 localhost 和端口 9200 上运行，它可以工作。

但是在尝试连接到 AWS 时，会出现以下错误：

Caused by: org.springframework.data.elasticsearch.client.NoReachableHostException: Host 'localhost:9200'

此外，如果我在浏览器中打开我的 AWS ElasticSearch，它的状态会显示为：

{
  "name" : "asjsbsghjmnkl1f05283a21d38yh9ij",
  "cluster_name" : "5583974864:qas",
  "cluster_uuid" : "8wWV8ujji9kbzg",
  "version" : {
    "number" : "7.10.2",
    "build_flavor" : "oss",
    "build_type" : "tar",
    "build_hash" : "unknown",
    "build_date" : "2021-04-21T04:22:10.395481Z",
    "build_snapshot" : false,
    "lucene_version" : "8.7.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

使用spring-boot2.4.5 和spring-data-elasticsearch：

implementation ('org.springframework.data:spring-data-elasticsearch') {
    exclude group: 'org.apache.lucene'
}

在发布此之前，我尝试了以下方法：

• 更好的 Elasticsearch 客户端从 JAVA Spring-boot 连接 AWS Elasticsearch
• 如何使用弹性 java 客户端与 aws elasticsearch 服务通信？

但他们都没有工作。

标签： javaspring-data-elasticsearchamazon-elasticsearchresthighlevelclient

Answer 1

有两种选择：

1. Java配置：

@Configuration
@EnableElasticsearchRepositories(basePackages = "com.arun.elasticsearch.repository")
@ComponentScan(basePackages = { "com.arun.elasticsearch.service" })
public class ElasticSearchConfig {
    private static final String HOST = "aws_host"; // localhost
    private static final int PORT = 443; // 9092
    private static final String PROTOCOL = "https"; // http

    @Bean
    public RestHighLevelClient client() {
       final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
        credentialsProvider.setCredentials(AuthScope.ANY,
                new UsernamePasswordCredentials("UserName", "Password"));

        RestClientBuilder builder = RestClient.builder(new HttpHost( HOST, PORT, PROTOCOL))
                .setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() {
                    @Override
                    public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) {
                        return httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
                    }
                });
    }

2. 春天yml：

elasticsearch:
  rest:
    uris: https://MyHost:9200
    username: arun
    password: mypassword