ElasticSearch排序Java api简单Demo

代码：

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String time1 = ConstValue.GetCurrentDate();      SortBuilder sortBuilder = SortBuilders.fieldSort("tfp_save_time")              .order(SortOrder.DESC).ignoreUnmapped(true);        SearchResponse scrollResp = client              .prepareSearch("flume-" + time1 + "-content-news")              .addHighlightedField("scc_content")              .addHighlightedField("scm_title")              .setQuery(ConstValue.queryBuilder22(requestSignal.getQuery()))              .addSort(sortBuilder).addHighlightedField("scc_title")              .setHighlighterPreTags("<em>").setHighlighterPostTags("</em>")              .setFrom((requestSignal.getPage() - 1) * 20).setSize(20)              .execute().actionGet();

 官方粘的：

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client.prepareSearch(indexName).setTypes(typeName)       .setQuery(query)       .addSort(fieldSort("activity").order(DESC).missing("_last"))       .setSize(limit)       .execute().actionGet();

 The .missing("_last") cannot be applied to boolean fields.