elasticSearch各种操作

获取index的mapping

GetMappingsRequest request =new GetMappingsRequest();

request.indices(indexName);

GetMappingsResponse response =restHighLevelClient.indices().getMapping(request, RequestOptions.DEFAULT);

判断是否存在

GetIndexRequest request =new GetIndexRequest(index);

GetIndexResponse response =restHighLevelClient.indices().get(request, RequestOptions.DEFAULT);

更新某个字段

XContentBuilder jsonStr= XContentFactory.jsonBuilder().startObject()

.field("字段名", 字段值)

.endObject();

UpdateRequest updateRequest =new UpdateRequest(index, type, id).doc(jsonStr);

UpdateResponse updateResponse =restHighLevelClient.update(updateRequest, RequestOptions.DEFAULT);

删除索引

DeleteRequest deleteRequest =new DeleteRequest(index, type, id);

DeleteResponse deleteResponse = deleteResponse =restHighLevelClient.delete(deleteRequest, RequestOptions.DEFAULT);