性能优化

miniprogram/app.js

@@ -92,6 +92,8 @@ App({
     
     // 加载书籍数据
     this.loadBookData()
+    // 加载 mpConfig（appId、mchId、withdrawSubscribeTmplId 等，失败时保留默认值）
+    this.loadMpConfig()
     
     // 检查更新
     this.checkUpdate()
@@ -320,6 +322,7 @@ App({
       if (res && (res.data || res.chapters)) {
         const chapters = res.data || res.chapters || []
         this.globalData.bookData = chapters
+        this.globalData.totalSections = (chapters && chapters.length) ? chapters.length : 62
         wx.setStorageSync('bookData', chapters)
       }
     } catch (e) {
@@ -327,6 +330,21 @@ App({
     }
   },
 
+  // 加载 mpConfig（appId、mchId、withdrawSubscribeTmplId 等），失败时保留 globalData 默认值
+  async loadMpConfig() {
+    try {
+      const res = await this.request({ url: '/api/miniprogram/config', silent: true })
+      const mp = (res && res.mpConfig) || (res && res.configs && res.configs.mp_config)
+      if (mp && typeof mp === 'object') {
+        if (mp.appId) this.globalData.appId = mp.appId
+        if (mp.mchId) this.globalData.mchId = mp.mchId
+        if (mp.withdrawSubscribeTmplId) this.globalData.withdrawSubscribeTmplId = mp.withdrawSubscribeTmplId
+      }
+    } catch (e) {
+      console.warn('[App] loadMpConfig 失败，使用默认值:', e?.message || e)
+    }
+  },
+
   /**
    * 小程序更新检测（基于 wx.getUpdateManager）
    * - 启动时检测；从后台切回前台时也检测（间隔至少 5 分钟，避免频繁请求）