fix: 导入excel识别时间类型

backend/src/main/java/io/dataease/commons/utils/ExcelReaderUtil.java

 package io.dataease.commons.utils;
 import com.google.gson.Gson;
 import io.dataease.datasource.dto.TableFiled;
+
+import java.io.FileInputStream;
 import java.io.InputStream;
 import java.util.List;
 
@@ -67,10 +69,10 @@ public class ExcelReaderUtil {
         }
     }
 
-     /* public static void main(String[] args) throws Exception {
+     public static void main(String[] args) throws Exception {
 
 
-        String file ="各省市GDP-表格_加内容.xlsx";
+        String file ="修改日期为mm-dd-yyyy.xlsx";
         ExcelReaderUtil.readExcel(file, new FileInputStream("/Users/taojinlong/Desktop/" + file));
-    } */
+    }
 }

backend/src/main/java/io/dataease/commons/utils/ExcelXlsxReader.java

@@ -319,6 +319,7 @@ public class ExcelXlsxReader extends DefaultHandler {
         nextDataType = CellDataType.NUMBER; //cellType为空，则表示该单元格类型为数字
         formatIndex = -1;
         formatString = null;
+        isDateFormat = false;
         String cellType = attributes.getValue("t"); //单元格类型
         if ("b".equals(cellType)) { //处理布尔值
             nextDataType = CellDataType.BOOL;