ES8 查询demo

 public SearchResponse<Object> buildAndExecuteSearchRequest(String index, String lastUpdateTime) throws IOException {
        // 第一个 should 条件：name字段不存在
        Query mustNotResumeExistsQuery = new Query.Builder()
                .bool(new BoolQuery.Builder()
                        .mustNot(new Query.Builder()
                                .exists(new ExistsQuery.Builder().field("name").build())
                                .build())
                        .build())
                .build();

        // 第二个 should 条件：name字段存在且 esUpdateTime 大于 lastUpdateTime
        Query resumeExistsAndTimeRangeQuery = new Query.Builder()
                .bool(new BoolQuery.Builder()
                        .must(new Query.Builder()
                                .exists(new ExistsQuery.Builder()
                                        .field("name")
                                        .build())
                                .build())
                        .must(new Query.Builder()
                                .range(RangeQuery.of(r -> r
                                        .date(d -> d
                                                .field("time")
                                                .gte(lastUpdateTime)
                                        ))
                                )
                                .build())
                        .build())
                .build();

// 构建布尔查询
        Query finalQuery = new Query.Builder()
                .bool(new BoolQuery.Builder()
                        .should(mustNotResumeExistsQuery)
                        .should(resumeExistsAndTimeRangeQuery)
                        .build())
                .build();

// 构建搜索请求
        SearchRequest searchRequest = new SearchRequest.Builder()
                .index(index)
                .query(finalQuery)
                .size(BATCH_SIZE)
                .build();

        log.info("Search request: {}", searchRequest);

        return esClient.search(searchRequest, Object.class);
    }