fix: 精简模式下抽取 excel(.xls) 数据集

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

@@ -344,7 +344,9 @@ public class ExcelXlsReader implements HSSFListener {
                     if(obtainedNum != null && totalSheets.stream().filter(s->s.getExcelLable().equalsIgnoreCase(sheetName)).collect(Collectors.toList()).get(0).getData().size() < obtainedNum){
                         totalSheets.stream().filter(s->s.getExcelLable().equalsIgnoreCase(sheetName)).collect(Collectors.toList()).get(0).getData().add(tmp);
                     }
-
+                    if(obtainedNum == null){
+                        totalSheets.stream().filter(s->s.getExcelLable().equalsIgnoreCase(sheetName)).collect(Collectors.toList()).get(0).getData().add(tmp);
+                    }
                     totalRows++;
                 }
             }

backend/src/main/java/io/dataease/service/dataset/ExtractDataService.java

@@ -704,10 +704,21 @@ public class ExtractDataService {
         List<String[]> data = new ArrayList<>();
         DataTableInfoDTO dataTableInfoDTO = new Gson().fromJson(datasetTable.getInfo(), DataTableInfoDTO.class);
         List<ExcelSheetData> excelSheetDataList = dataTableInfoDTO.getExcelSheetDataList();
-        ExcelXlsxReader excelXlsxReader = new ExcelXlsxReader();
         for (ExcelSheetData excelSheetData : excelSheetDataList) {
+            String suffix = excelSheetData.getPath().substring(excelSheetData.getPath().lastIndexOf(".") + 1);
+            List<ExcelSheetData> totalSheets = new ArrayList<>();
+            if (StringUtils.equalsIgnoreCase(suffix, "xls")) {
+                ExcelXlsReader excelXlsReader = new ExcelXlsReader();
+                excelXlsReader.process(new FileInputStream(excelSheetData.getPath()));
+                totalSheets = excelXlsReader.totalSheets;
+            }
+            if (StringUtils.equalsIgnoreCase(suffix, "xlsx")) {
+                ExcelXlsxReader excelXlsxReader = new ExcelXlsxReader();
                 excelXlsxReader.process(new FileInputStream(excelSheetData.getPath()));
-            for (ExcelSheetData sheet : excelXlsxReader.totalSheets) {
+                totalSheets = excelXlsxReader.totalSheets;
+            }
+
+            for (ExcelSheetData sheet : totalSheets) {
                 if (sheet.getExcelLable().equalsIgnoreCase(excelSheetData.getExcelLable())) {
                     for (List<String> dataItem : sheet.getData()) {
                         if (dataItem.size() > 0) {