java 操作 elasticseaerch (ES) 技巧记录 持续更新

1. 根据指定条件更新 elasticseaerch 索引

        //获取链接
        Client client = elasticseaerchTemplate.getClient();
        UpdateByQueryRequestBuilder updateByQuery = UpdateByQueryAction.INSTANCE.newRequestBuilder(client);
        updateByQuery.source("索引")
         //查询要修改的结果集可以多个
         .filter(QueryBuilders.termQuery("field", "789"))
         //修改操作  field 字段  value值
        .script(new Script( "ctx._source['field']='value';ctx._source['field']='value'"));
        //获取响应结果集
        BulkByScrollResponse response = updateByQuery.get();
        long updated = response.getUpdated();