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背景ES在查询时如果数量太多，而每行记录包含的字段很多，那就会导致超出ES的查询上线，默认是100MB，但是很多场景下我们只需要返回特定的字段即可，那么如何操作呢。主要代码@Autowired private RestHighLevelClient client; public List<Ma...

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import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.io.File; import java.nio.file.DirectoryStream; import java.nio.file.Files; import...

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java在调用jedis查询某个键对应value的数据类型type方法发现性能很慢，该如何优化？

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