update at 2026-02-14 11:16:40

miniapp/pages/index/index.js

@@ -66,6 +66,15 @@ function getFileExtension(fileName) {
   return lowerName.slice(lastDotIndex + 1);
 }
 
+/**
+ * 从路径提取文件名，兼容 Unix/Windows 路径分隔符。
+ */
+function getBaseNameFromPath(filePath) {
+  const normalized = String(filePath || '').replace(/\\/g, '/');
+  const segments = normalized.split('/');
+  return segments[segments.length - 1] || '';
+}
+
 const FALLBACK_THEME_COLORS = ['#9b6bc2', '#7e95f7', '#4cc9f0', '#f4a261'];
 
 /**
@@ -859,7 +868,7 @@ Page({
    */
   readAndApplyFile(filePath, fileName, onReadFailPrefix) {
     const that = this;
-    const extension = getFileExtension(fileName);
+    const extension = getFileExtension(fileName) || getFileExtension(getBaseNameFromPath(filePath));
     const isCsvFile = extension === 'csv';
     const readOptions = {
       filePath,
@@ -960,8 +969,12 @@ Page({
         if (!picked) {
           return;
         }
-        const filePath = picked.path;
-        const fileName = picked.name || 'unknown.csv';
+        const filePath = picked.path || picked.tempFilePath || '';
+        const fileName =
+          picked.name ||
+          getBaseNameFromPath(filePath) ||
+          // 无法识别文件名时，默认按二进制读取，交由解析器做内容识别。
+          'upload.bin';
         that.readAndApplyFile(filePath, fileName, '读取文件失败');
       },
       fail(err) {