判断获取到数据

biz/export/excel_exporter.go

@@ -42,8 +42,9 @@ func (ee *ExcelExporter) Export(sql, pk string) error {
 		ee.file.Write(last)
 	}
 
-	ee.last = last[getPkIndex(data.Title, pk)]
-
+	if len(last) > 0 {
+		ee.last = last[getPkIndex(data.Title, pk)]
+	}
 	//ee.file.Close()
 	return nil
 }

cmd/cmd/excel.go

@@ -66,6 +66,11 @@ func (e *Excel) TaskExport(d export.DataFetcher, t config.Task, params map[strin
 
 		count, last := e.Last()
 		fmt.Printf("已导出 %d 条数据\n", batch*i+count)
+
+		if count == 0 {
+			return nil
+		}
+
 		if count < batch {
 			break
 		}