文档拆分-bug59381: 解决加载过长问题

jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java

@@ -3550,7 +3550,20 @@ public class BussDocumentLibraryEOServiceImpl extends ServiceImpl<BussDocumentLi
 //        List records = infoPage.getRecords();
         List records = bussDocumentLibraryEOMapper.ocrPageInfo(field, conditionSb.toString());
         page.setTotal(records.size());
-        records = records.subList(pageNo * pageSize - pageSize, pageNo * pageSize);
+
+        int subSize = pageSize; // 每页记录数
+        int subCount = records.size(); // 总记录数
+        int subPageTotal = (subCount / subSize) + ((subCount % subSize > 0) ? 1 : 0); //总页数
+
+        // 分页计算
+        int fromIndex = (pageNo-1) * subSize;
+        int toIndex = ((pageNo == subPageTotal) ? subCount : (pageNo * subSize));
+        if( fromIndex <= subCount && toIndex <= subCount) {
+            records = records.subList(fromIndex, toIndex);
+        } else {
+            records = new ArrayList();
+        }
+
 
         //数据字典
         List<SysDictItem> sysDictItems = sysDictItemServiceImpl.selectItemsAll();