update at 2026-02-13 22:45:23

miniapp/pages/index/index.js

@@ -1,4 +1,5 @@
 const { parseTableByFileName, buildSankeyData } = require('../../utils/sankey');
+const defaultSankeyTable = require('../../data/sankey.default.json');
 
 /**
  * 将表头标准化，便于做中英文别名匹配。
@@ -130,7 +131,12 @@ const TARGET_ALIGN_OPTIONS = [
   { value: 'bottom', label: '底部' }
 ];
 const DEFAULT_SANKEY_FILE_NAME = 'data/sankey.xlsx';
-const DEFAULT_SANKEY_FILE_PATHS = ['/data/sankey.xlsx', 'data/sankey.xlsx'];
+const DEFAULT_SANKEY_FILE_PATHS = [
+  '/data/sankey.xlsx',
+  '/miniapp/data/sankey.xlsx',
+  'data/sankey.xlsx',
+  'miniapp/data/sankey.xlsx'
+];
 
 /**
  * 数值限制，避免 UI 参数导致布局异常。
@@ -658,16 +664,31 @@ Page({
    */
   loadDefaultSankeyFile() {
     const that = this;
-    const tryReadByIndex = (index, lastErrorMessage) => {
-      if (index >= DEFAULT_SANKEY_FILE_PATHS.length) {
+    const applyBuiltInTableFallback = (reasonText) => {
+      const hasRows =
+        defaultSankeyTable &&
+        Array.isArray(defaultSankeyTable.headers) &&
+        Array.isArray(defaultSankeyTable.rows) &&
+        defaultSankeyTable.rows.length > 0;
+
+      if (!hasRows) {
         that.setData({
           uploadMessage: '点击上传或将csv/xls文件拖到这里上传',
-          parseError: `默认文件加载失败: ${lastErrorMessage || `未找到 ${DEFAULT_SANKEY_FILE_NAME}`}`
+          parseError: `默认文件加载失败: ${reasonText || `未找到 ${DEFAULT_SANKEY_FILE_NAME}`}`
         });
         that.refreshInfoLogs();
         return;
       }
 
+      that.applyParsedTable(defaultSankeyTable, `${DEFAULT_SANKEY_FILE_NAME}（内置回退）`);
+    };
+
+    const tryReadByIndex = (index, lastErrorMessage) => {
+      if (index >= DEFAULT_SANKEY_FILE_PATHS.length) {
+        applyBuiltInTableFallback(lastErrorMessage);
+        return;
+      }
+
       const candidatePath = DEFAULT_SANKEY_FILE_PATHS[index];
       wx.getFileSystemManager().readFile({
         filePath: candidatePath,