java中如何在Elasticsearch索引文档中插入唯一数据

import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.common.xcontent.json.JsonXContent;

public class ElasticsearchInsertUniqueDataExample {
    private RestHighLevelClient client;

    public ElasticsearchInsertUniqueDataExample() {
        // 初始化Elasticsearch客户端
        client = new RestHighLevelClient(
                RestClient.builder(new HttpHost("localhost", 9200, "http")));
    }

    public void insertUniqueData(String index, String id, String jsonDocument) throws IOException {
        // 创建索引请求
        IndexRequest request = new IndexRequest(index)
                .id(id) // 设置文档ID，保证唯一性
                .source(jsonDocument, XContentType.JSON);

        // 执行索引请求
        IndexResponse response = client.index(request, RequestOptions.DEFAULT);

        // 处理响应结果
        if (response.getResult() == DocWriteResponse.Result.CREATED) {
            System.out.println("插入成功");
        } else if (response.getResult() == DocWriteResponse.Result.UPDATED) {
            System.out.println("更新成功");
        }
    }

    public static void main(String[] args) {
        ElasticsearchInsertUniqueDataExample example = new ElasticsearchInsertUniqueDataExample();

        String index = "my_index"; // 索引名称
        String id = "1"; // 文档ID
        String jsonDocument = "{\"name\": \"John\", \"age\": 30}"; // JSON格式的文档数据

        try {
            example.insertUniqueData(index, id, jsonDocument);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}