elasticsearch笔记(6) 删除文档delete-by-query

根据term, match等查询方式去删除大量的文档.

ps:如果是大量的删除，不推荐这个方式，太耗时了，因为是根据查询的id一个一个删除，而查询本身也很消耗性能，推荐新建一个index，把保留的部分保留到新的index

 在java中用索引删除

    @Test
    public void deletByQueryTest() throws IOException {
        //创建DeleteByQueryRequest对象
    String index = "sms-logs-index";
    String type = "sms-logs-type";
    DeleteByQueryRequest deleteByQueryRequest = new DeleteByQueryRequest(index);
    deleteByQueryRequest.types(type);
   //指定删除条件
    RangeQueryBuilder fee = QueryBuilders.rangeQuery("fee").lt(20).gt(10);
    deleteByQueryRequest.setQuery(fee);
   //创建查询对象
    HttpHost httpHost = new HttpHost("192.168.43.30", 9200);
    RestClientBuilder restClientBuilder = RestClient.builder(httpHost);
    RestHighLevelClient restHighLevelClient = new RestHighLevelClient(restClientBuilder);
    //执行删除
    BulkByScrollResponse bulkByScrollResponse = restHighLevelClient.deleteByQuery(deleteByQueryRequest, RequestOptions.DEFAULT);
    System.out.println(bulkByScrollResponse);

}