From 44479dcb86c45a6477daeee04060e6cc8b838eb3 Mon Sep 17 00:00:00 2001
From: Dev <dev@126.com>
Date: Wed, 14 Oct 2026 17:38:24 +0800
Subject: [PATCH] =?UTF-8?q?=E5=88=86=E4=BA=AB=E9=A1=B5=E9=9D=A2=E7=BC=A9?=
 =?UTF-8?q?=E7=95=A5=E5=9B=BE=E8=87=AA=E5=AE=9A=E4=B9=89?=
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---
 backend/application/api/controller/Common.php |  3 +++
 .../miniapp/pages/promoter/index/index.js     | 20 ++++++++++++++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/backend/application/api/controller/Common.php b/backend/application/api/controller/Common.php
index a9111a8..bfa679e 100644
--- a/backend/application/api/controller/Common.php
+++ b/backend/application/api/controller/Common.php
@@ -184,6 +184,7 @@ class Common extends Api
         $toLabels = function ($value) {
             return array_values(array_filter(array_map('trim', explode(',', $value ?? ''))));
         };
+        $shareImage = config('site.promotion_share_image') ?? '';
         $config = [
             'languageLabels' => $toLabels($code_languages),
             'frontLabels' => $toLabels($front_techs),
@@ -192,6 +193,8 @@ class Common extends Api
             'developTypes' => $developTypes,
             // 平台服务费比例（0~1），前端据此计算开发者预计到手金额
             'platform_commission_ratio' => (float)DemandService::getPlatformCommissionRatio(),
+            // 推广分享卡片预览图，未配置时为空
+            'promotion_share_image' => $shareImage ? cdnurl($shareImage, true) : '',
         ];
 
         $this->success('', $config);
diff --git a/frontend/miniapp/pages/promoter/index/index.js b/frontend/miniapp/pages/promoter/index/index.js
index 9e5a1e5..7c19ee0 100644
--- a/frontend/miniapp/pages/promoter/index/index.js
+++ b/frontend/miniapp/pages/promoter/index/index.js
@@ -1,5 +1,6 @@
 // pages/promoter/index/index.js
 import { fetchPromoterInfo, fetchPromoterOrders, fetchPromoterQrcode } from '../../../services/promoter/fetchPromoter';
+import { fetchConfig } from '../../../services/home/home';
 import { withPromoter } from '../../../utils/promoter';
 
 const PAGE_SIZE = 10;
@@ -21,11 +22,24 @@ Page({
     qrcode: '', // 推广小程序码 data URL
     qrcodeLoading: false, // 推广码生成中
     saving: false, // 保存推广码中
+    shareImage: '', // 分享卡片预览图（后台配置 site.promotion_share_image），为空时微信默认截取当前页
   },
 
   onLoad() {
     this.loadOverview();
     this.loadList(true);
+    this.loadShareImage();
+  },
+
+  async loadShareImage() {
+    try {
+      const res = await fetchConfig();
+      if (res.code === 1 && res.data?.promotion_share_image) {
+        this.setData({ shareImage: res.data.promotion_share_image });
+      }
+    } catch (err) {
+      console.error('loadShareImage failed:', err);
+    }
   },
 
   async onPullDownRefresh() {
@@ -40,10 +54,14 @@ Page({
   },
 
   onShareAppMessage() {
-    return {
+    const share = {
       title: '代码帮 - 软件商城与定制开发平台',
       path: withPromoter('/pages/home/home'),
     };
+    if (this.data.shareImage) {
+      share.imageUrl = this.data.shareImage;
+    }
+    return share;
   },
 
   async loadOverview() {