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	商品:用户未登录时,不记录商品浏览记录
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		@@ -27,6 +27,11 @@ public class ProductBrowseHistoryServiceImpl implements ProductBrowseHistoryServ
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    @Override
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    public Long createBrowseHistory(Long userId, Long spuId) {
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        // 用户未登录时不记录
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        if (userId == null) {
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            return null;
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        }
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        // 情况一:同一个商品,只保留最新的一条记录
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        ProductBrowseHistoryDO historyDO = browseHistoryMapper.selectOne(ProductBrowseHistoryDO::getUserId, userId, ProductBrowseHistoryDO::getSpuId, spuId);
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        if (historyDO != null) {
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