优化代码

src/main/java/cn/stock/market/infrastructure/job/Scraper.java

@@ -175,6 +175,7 @@ public class Scraper {
                   //  stockIpoRepository.saveAll(listStockIpoList);
 
                     List<String> scIdList = Lists.transform(listStockIpoList, StockIpo::getStockCode);
+                    if(CollectionUtil.isNotEmpty(scIdList)){
                         List<StockIpo> existStockIpoList = stockIpoRepository.findAll(QStockIpoPO.stockIpoPO.stockCode.in(scIdList));
                         List<String> existingStockScIds = existStockIpoList.stream()
                                 .map(StockIpo::getStockCode)
@@ -188,6 +189,8 @@ public class Scraper {
                         if(CollectionUtil.isNotEmpty(listStockIpoList)){
                             stockIpoRepository.saveAll(listStockIpoList);
                         }
+                    }
+
 
                     // 输出整个 JSON 数据
                 } else {