Elasticsearch :使用Java客户端查找给定索引的所有映射类型

import org.elasticsearch.action.admin.indices.mapping.get.GetMappingsRequest;
import org.elasticsearch.action.admin.indices.mapping.get.GetMappingsResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.indices.GetMappingsRequest;
import org.elasticsearch.client.indices.GetMappingsResponse;
import org.elasticsearch.cluster.metadata.MappingMetadata;

import java.io.IOException;
import java.util.Map;

public class ElasticsearchMappingExample {
    public static void main(String[] args) {
        try (RestHighLevelClient client = new RestHighLevelClient()) {
            GetMappingsRequest request = new GetMappingsRequest().indices("your_index_name");
            GetMappingsResponse response = client.indices().getMapping(request, RequestOptions.DEFAULT);

            Map<String, MappingMetadata> mappings = response.mappings();
            for (Map.Entry<String, MappingMetadata> entry : mappings.entrySet()) {
                String type = entry.getKey();
                MappingMetadata mapping = entry.getValue();
                // 处理映射类型
                System.out.println("Mapping type: " + type);
                System.out.println("Mapping properties: " + mapping.source().toString());
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}