Spring boot整合ELK详细过程

<dependency>
    <groupId>org.elasticsearch.client</groupId>
    <artifactId>elasticsearch-rest-high-level-client</artifactId>
    <version>7.17.3</version>
</dependency>

import org.apache.http.HttpHost;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
public class ElasticsearchClient {
    public RestHighLevelClient getClient() {
        RestHighLevelClient client = new RestHighLevelClient(
                RestClient.builder(
                        new HttpHost("localhost", 9200, "http")));
        return client;
    }
    public static void main(String[] args) {
        ElasticsearchClient elasticsearchClient = new ElasticsearchClient();
        elasticsearchClient.getClient();
    }
}

import org.apache.http.HttpHost;
import org.elasticsearch.action.delete.DeleteRequest;
import org.elasticsearch.action.delete.DeleteResponse;
import org.elasticsearch.action.get.GetRequest;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.update.UpdateRequest;
import org.elasticsearch.action.update.UpdateResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.common.xcontent.XContentType;
import java.io.IOException;
public class ElasticsearchCRUD {
    private RestHighLevelClient client;
    public ElasticsearchCRUD() {
        client = new RestHighLevelClient(
                RestClient.builder(
                        new HttpHost("localhost", 9200, "http")));
    }
    public void closeClient() throws IOException {
        client.close();
    }
    public void insertDocument(String indexName, String id, String jsonData) throws IOException {
        IndexRequest request = new IndexRequest(indexName)
              .id(id)
              .source(jsonData, XContentType.JSON);
        IndexResponse response = client.index(request, RequestOptions.DEFAULT);
        System.out.println("Document inserted. Response: " + response.getResult());
    }
    public void getDocument(String indexName, String id) throws IOException {
        GetRequest request = new GetRequest(indexName, id);
        GetResponse response = client.get(request, RequestOptions.DEFAULT);
        if (response.isExists()) {
            System.out.println("Document found: " + response.getSourceAsString());
        } else {
            System.out.println("Document not found");
        }
    }
    public void updateDocument(String indexName, String id, String updateJsonData) throws IOException {
        UpdateRequest request = new UpdateRequest(indexName, id)
              .doc(updateJsonData, XContentType.JSON);
        UpdateResponse response = client.update(request, RequestOptions.DEFAULT);
        System.out.println("Document updated. Response: " + response.getResult());
    }
    public void deleteDocument(String indexName, String id) throws IOException {
        DeleteRequest request = new DeleteRequest(indexName, id);
        DeleteResponse response = client.delete(request, RequestOptions.DEFAULT);
        System.out.println("Document deleted. Response: " + response.getResult());
    }
    public static void main(String[] args) {
        ElasticsearchCRUD elasticsearchCRUD = new ElasticsearchCRUD();
        String indexName = "your_index_name";
        String id = "your_document_id";
        // 插入数据
        String jsonData = "{\"name\": \"John Doe\", \"age\": 30}";
        try {
            elasticsearchCRUD.insertDocument(indexName, id, jsonData);
        } catch (IOException e) {
            e.printStackTrace();
        }
        // 获取数据
        try {
            elasticsearchCRUD.getDocument(indexName, id);
        } catch (IOException e) {
            e.pr