update ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java.

ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java

@@ -170,18 +170,8 @@ public class ExcelUtil<T>
         this.type = Type.IMPORT;
         this.wb = WorkbookFactory.create(is);
         List<T> list = new ArrayList<T>();
-        Sheet sheet = null;
-        if (StringUtils.isNotEmpty(sheetName))
-        {
-            // 如果指定sheet名,则取指定sheet中的内容.
-            sheet = wb.getSheet(sheetName);
-        }
-        else
-        {
-            // 如果传入的sheet名不存在则默认指向第1个sheet.
-            sheet = wb.getSheetAt(0);
-        }
-
+        // 如果指定sheet名,则取指定sheet中的内容 否则默认指向第1个sheet
+        Sheet sheet = StringUtils.isNotEmpty(sheetName) ? wb.getSheet(sheetName) : wb.getSheetAt(0);
         if (sheet == null)
         {
             throw new IOException("文件sheet不存在");