修复请假流程中附件下载功能

web/src/views/xg/xsjcxx/xsqj/dialog.vue

@@ -594,8 +594,21 @@ const handleDownloadAttachment = async (file: any) => {
     if (!response) {
       throw new Error('响应数据为空');
     }
+    console.log('response', response);
 
-    const url = window.URL.createObjectURL(response.data as Blob);
+    // 检查response的结构，判断是直接的Blob还是包含data属性的响应对象
+    let blobData: Blob;
+    if (response instanceof Blob) {
+      // 如果response本身就是Blob对象
+      blobData = response;
+    } else if (response.data instanceof Blob) {
+      // 如果response.data是Blob对象
+      blobData = response.data;
+    } else {
+      throw new Error('无效的响应数据格式');
+    }
+
+    const url = window.URL.createObjectURL(blobData);
 
     const link = document.createElement('a');
     link.href = url;