JAVA滚动查询es

通过设置的查询条数，滚动查询es，直到查出所有结果

1. 首先定义

private static TimeValue timeValue = new TimeValue(1000000);

2. 查询条件

QueryBuilders.disMaxQuery().add(QueryBuilders.termQuery("", ""));

3. 查询代码

SearchRequestBuilder setQuery = esTransportClient.prepareSearch("索引名")
				.setTypes("索引类型")
				.setQuery(must)
				.setFrom(0)
				.setSize(10000)
				.setScroll(timeValue)
				;
		SearchResponse actionGet = setQuery.execute().actionGet();
		List<List<String>> list = new ArrayList<List<String>>();
		while (true){
			SearchHits hits = actionGet.getHits();
			SearchHit[] hits2 = hits.getHits();
			if (hits2.length < 1){
                break;
            }
			for (SearchHit searchHit : hits2) {
				Map<String, Object> map = searchHit.getSourceAsMap();
				List<String> fullTextSeven = getFullTextSeven(map);
				list.add(fullTextSeven);
			}
			String scrollID = actionGet.getScrollId();
			actionGet = esTransportClient.prepareSearchScroll(scrollID)
	                .setScroll(timeValue).get();
		}
		System.out.println(list.size());