Pr@dev v2@fixds (#15318)

* fix：[Bug]汇总表分享的公共链接下载成Excel打开乱码 #15254

* fix：修复excel 表头支持数值

---------

Co-authored-by: taojinlong <jinlong@fit2cloud.com>

core/core-backend/src/main/java/io/dataease/chart/server/ChartDataServer.java

@@ -274,7 +274,6 @@ public class ChartDataServer implements ChartDataApi {
                         } else {
                             setExcelData(detailsSheet, cellStyle, header, details, detailFields, excelTypes, request.getViewInfo(), null);
                         }
-                        setExcelData(detailsSheet, cellStyle, header, details, detailFields, excelTypes, request.getViewInfo(), null);
                     } else {
                         for (int i = 0; i < request.getMultiInfo().size(); i++) {
                             ChartExcelRequestInner requestInner = request.getMultiInfo().get(i);

core/core-backend/src/main/java/io/dataease/datasource/provider/ExcelUtils.java

@@ -4,6 +4,7 @@ package io.dataease.datasource.provider;
 import com.alibaba.excel.EasyExcel;
 import com.alibaba.excel.ExcelReader;
 import com.alibaba.excel.context.AnalysisContext;
+import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.event.AnalysisEventListener;
 import com.alibaba.excel.metadata.data.ReadCellData;
 import com.alibaba.excel.read.metadata.ReadSheet;
@@ -564,7 +565,13 @@ public class ExcelUtils {
             super.invokeHead(headMap, context);
             for (Integer key : headMap.keySet()) {
                 ReadCellData<?> cellData = headMap.get(key);
-                String value = cellData.getStringValue();
+                String value = null;
+                if (cellData.getType().equals(CellDataTypeEnum.STRING)) {
+                    value = cellData.getStringValue();
+                }
+                if (cellData.getType().equals(CellDataTypeEnum.NUMBER)) {
+                    value = cellData.getNumberValue().toString();
+                }
                 if (StringUtils.isEmpty(value)) {
                     continue;
                 }

core/core-frontend/src/views/visualized/data/datasource/form/index.vue

@@ -315,18 +315,7 @@ const handleShowFinishPage = ({ id, name, pid }) => {
 emitter.on('showFinishPage', handleShowFinishPage)
 
 const prev = () => {
-  if (activeApiStep.value === 1) {
-    ElMessageBox.confirm(t('data_source.the_previous_step'), {
-      confirmButtonType: 'primary',
-      type: 'warning',
-      autofocus: false,
-      showClose: false
-    }).then(() => {
-      prevConfirm()
-    })
-  } else {
-    prevConfirm()
-  }
+  prevConfirm()
 }
 
 const prevConfirm = () => {