Elasticsearch Scroll查询

最新推荐文章于 2025-07-12 00:03:25 发布

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最新推荐文章于 2025-07-12 00:03:25 发布 · 749 阅读

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#elasticsearch #大数据 #搜索引擎

    @Override
    public void scrollSearch(String index) {
        // 创建 JestClient 客户端实例
        try {
            // 构建初始的搜索请求
            SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
            searchSourceBuilder.query(QueryBuilders.matchAllQuery());
            searchSourceBuilder.size(10);
            Search search = new Search.Builder(searchSourceBuilder.toString())
                    .addIndex(index)
                    .setParameter(Parameters.SCROLL, "1m")
                    .build();

            // 执行初始搜索请求
            SearchResult searchResult = client.execute(search);
            String scrollId = searchResult.getJsonObject().get("_scroll_id").getAsString();

            // 处理初始搜索结果
            JestResult result = searchResult;
            while (result.isSucceeded()) {
                // 从 JestResult 中获取滚动查询结果
                JsonElement hitsElement = result.getJsonObject().get("hits").getAsJsonObject();