写了两个工具函数。

code/后端/desktop_archievement_backend/src/main/java/com/cpic/xim/utils/poi/MyPOIUtils.java

@@ -0,0 +1,41 @@
+/*
+ * @Author: Kane
+ * @Date: 2023-10-08 22:12:05
+ * @LastEditors: Kane
+ * @FilePath: /desktop_archievement_backend/src/main/java/com/cpic/xim/utils/poi/MyPOIUtils.java
+ * @Description: POI相关的工具
+ * 
+ * Copyright (c) ${2023} by Kane, All Rights Reserved. 
+ */
+package com.cpic.xim.utils.poi;
+
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Row.MissingCellPolicy;
+
+public class MyPOIUtils
+{
+    public String getStringCellValue( Cell cell )
+    {
+        switch( cell.getCellType() )
+        {
+            case STRING:
+                return cell.getStringCellValue();
+            default:
+                return "";
+        }
+    }
+
+    public String getStringCellValue( Row row, int columnIndex )
+    {
+        Cell cell = row.getCell(columnIndex, MissingCellPolicy.RETURN_NULL_AND_BLANK);
+
+        switch( cell.getCellType() )
+        {
+            case STRING:
+                return cell.getStringCellValue();
+            default:
+                return "";
+        }
+    }
+}