图片导出优化

src/modules/manage/views/PaperExport.vue

@@ -329,6 +329,16 @@ export default {
         return;
       }
       this.taskRunning = true;
+      // 获取导出任务详情数据
+      const dataList = await exportDataList({
+        ...this.scoreFilter,
+        workId: this.scoreFilter.examId
+      }).catch(() => {});
+      if (!dataList || !dataList.length) {
+        this.taskRunning = false;
+        this.$Message.error("当前没有需要下载的数据！");
+        return;
+      }
 
       this.scoreFilter.savePathRule = this.SAVE_PATH_RULES.filter(
         item => item.seleted
@@ -342,6 +352,7 @@ export default {
         message: "正在下载任务数据"
       };
       const exam = this.exams.find(item => item.id === this.scoreFilter.examId);
+
       // 保存本地导出任务
       this.curExportTask = {
         ...this.scoreFilter,
@@ -352,14 +363,12 @@ export default {
       const taskId = await addExportTask(this.curExportTask).catch(() => {});
 
       if (!taskId) {
-        console.log("本地添加任务失败！");
+        this.$Message.error("本地添加任务失败！");
         this.taskRunning = false;
         return;
       }
       this.curExportTask.id = taskId;
 
-      // 获取导出任务详情数据
-      const dataList = await exportDataList(this.curExportTask);
       // 记录导出任务详情数据
       const len = dataList.length;
       const pageCount = Math.ceil(len / this.pageSize);