setRefresh(boolean) has been removed in favor of setRefreshPolicy(RefreshPolicy) because there are now three options (NONE, IMMEDIATE, and WAIT_FOR). setRefresh(IMMEDIATE) has the same behavior as setRefresh(true) used to have. See setRefreshPolicy's javadoc for more.
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elastic_kevin123
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这个问题因为 Elasticsearch 有延迟的关系（好像记得是3秒还是1秒来着）。有的人的做法比如有以下方法解决的。