解决code被重复使用的问题

src/components/door-panel/door-panel.vue

@@ -39,7 +39,9 @@
             <text class="step-text">完成订单</text>
           </view>
         </view>
-        <view class="door-btn-close" @click="handleClose">返回首页</view>
+        <view class="door-btn-area">
+          <view class="door-btn-close" @click="handleClose">返回首页</view>
+        </view>
       </view>
     </view>
 
@@ -74,7 +76,9 @@
             <text class="step-text">完成订单</text>
           </view>
         </view>
-        <view class="door-btn-close" @click="handleClose">返回首页</view>
+        <view class="door-btn-area">
+          <view class="door-btn-close" @click="handleClose">返回首页</view>
+        </view>
       </view>
     </view>
 
@@ -92,24 +96,34 @@
 
         <!-- 订单信息 -->
         <view class="door-order-card" v-if="orderInfo">
+          <!-- 商品列表 -->
+          <view class="door-product-list" v-if="orderInfo.products && orderInfo.products.length">
+            <view class="door-product-item" v-for="(p, idx) in orderInfo.products" :key="idx">
+              <image class="door-product-img" :src="p.image" mode="aspectFill" />
+              <view class="door-product-info">
+                <text class="door-product-name">{{ p.name }}</text>
+                <text class="door-product-price">¥{{ getDecimal(p.unit_price) }} x {{ p.qty }}</text>
+              </view>
+            </view>
+          </view>
           <view class="door-order-row">
             <text class="door-order-label">订单编号</text>
             <text class="door-order-value">{{ orderInfo.order_no }}</text>
           </view>
           <view class="door-order-row">
             <text class="door-order-label">商品数量</text>
-            <text class="door-order-value">{{ orderInfo.product_count || '-' }} 件</text>
+            <text class="door-order-value">{{ orderInfo.total_qty || '-' }} 件</text>
           </view>
           <view class="door-order-row total">
             <text class="door-order-label">订单金额</text>
-            <text class="door-order-value door-price">¥{{ orderInfo.total_amount || '0.00' }}</text>
+            <text class="door-order-value door-price">¥{{ getDecimal(orderInfo.total_amount) }}</text>
           </view>
         </view>
-        <view class="door-order-card" v-else-if="orderLoading">
-          <text class="door-order-loading">加载订单信息...</text>
-        </view>
 
-        <view class="door-btn-close" @click="handleClose">返回首页</view>
+        <view class="door-btn-area">
+          <view class="door-btn-detail" @click="goOrderDetail">查看订单详情</view>
+          <view class="door-btn-close" @click="handleClose">返回首页</view>
+        </view>
       </view>
     </view>
   </view>
@@ -217,13 +231,21 @@ export default {
     },
 
     // 查询订单信息
-    async fetchOrder(flowId) {
+    async fetchOrder(orderId) {
+      if (!orderId || !this.userId) {
+        this.orderLoading = false;
+        return;
+      }
       this.orderLoading = true;
       try {
-        const res = await get('/order/getByFlowId', { flow_id: flowId });
+        const res = await get('/user/orders', {
+          page: 1,
+          limit: 1,
+          filter: JSON.stringify({ user_id: this.userId, order_id: orderId })
+        });
         const ret = res.data || {};
-        if (ret.code === 0 && ret.data) {
-          this.orderInfo = ret.data;
+        if (ret.code === 0 && Array.isArray(ret.data) && ret.data.length > 0) {
+          this.orderInfo = ret.data[0];
         }
       } catch (e) {
         console.error('[door-panel] 获取订单信息失败:', e);
@@ -232,6 +254,26 @@ export default {
       }
     },
 
+    // MongoDB Decimal128 转换
+    getDecimal(val) {
+      if (val == null) return '0.00';
+      if (typeof val === 'object' && val.$numberDecimal) return val.$numberDecimal;
+      return String(val);
+    },
+
+    // 跳转订单详情
+    goOrderDetail() {
+      if (this.orderInfo) {
+        const orderId = this.orderInfo.order_id || '';
+        uni.setStorageSync('__order_detail_cache', this.orderInfo);
+        uni.navigateTo({ url: `/pages/order/detail?order_id=${orderId}` });
+      } else if (this.flowId) {
+        uni.navigateTo({ url: `/pages/order/detail?flow_id=${this.flowId}` });
+      } else {
+        uni.showToast({ title: '无法获取订单信息', icon: 'none' });
+      }
+    },
+
     // 关闭遮罩
     handleClose() {
       this.step = '';
@@ -500,6 +542,44 @@ export default {
   padding: 24rpx 30rpx;
   margin-top: 16rpx;
 }
+
+/* 商品列表 */
+.door-product-list {
+  margin-bottom: 12rpx;
+}
+.door-product-item {
+  display: flex;
+  align-items: center;
+  padding: 12rpx 0;
+}
+.door-product-item + .door-product-item {
+  border-top: 1rpx solid rgba(255, 255, 255, 0.06);
+}
+.door-product-img {
+  width: 80rpx;
+  height: 80rpx;
+  border-radius: 10rpx;
+  background: rgba(255, 255, 255, 0.1);
+  flex-shrink: 0;
+}
+.door-product-info {
+  flex: 1;
+  margin-left: 16rpx;
+  display: flex;
+  flex-direction: column;
+  gap: 6rpx;
+}
+.door-product-name {
+  font-size: 26rpx;
+  color: rgba(255, 255, 255, 0.85);
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+.door-product-price {
+  font-size: 24rpx;
+  color: rgba(255, 255, 255, 0.45);
+}
 .door-order-row {
   display: flex;
   justify-content: space-between;
@@ -534,9 +614,28 @@ export default {
   padding: 16rpx 0;
 }
 
+/* ====== 按钮区域 ====== */
+.door-btn-area {
+  margin-top: 64rpx;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 24rpx;
+}
+
+/* ====== 查看订单详情按钮 ====== */
+.door-btn-detail {
+  font-size: 30rpx;
+  color: #fff;
+  padding: 24rpx 80rpx;
+  background: linear-gradient(135deg, #2979ff, #1e60e0);
+  border-radius: 48rpx;
+  letter-spacing: 2rpx;
+  box-shadow: 0 8rpx 24rpx rgba(41, 121, 255, 0.35);
+}
+
 /* ====== 关闭按钮 ====== */
 .door-btn-close {
-  margin-top: 48rpx;
   font-size: 30rpx;
   color: rgba(255, 255, 255, 0.85);
   padding: 24rpx 100rpx;

src/pages/auth/loading.vue

@@ -72,6 +72,9 @@ export default {
      * 发起 OAuth 授权（静默授权，只获取 openid）
      */
     async startAuth() {
+      // 清除上次使用的 code 标记
+      uni.removeStorageSync('__used_auth_code');
+
       const platform = detectPlatform();
       const appNo = getAppNo(platform);
 
@@ -140,6 +143,20 @@ export default {
         return;
       }
 
+      // 防止 code 重复提交：先检查再标记
+      const usedCode = uni.getStorageSync('__used_auth_code');
+      if (usedCode === code) {
+        console.warn('[loading] code 已使用过，跳过');
+        return;
+      }
+      uni.setStorageSync('__used_auth_code', code);
+
+      // 立即清除 URL 中的 code 参数，避免刷新重复处理
+      const url = new URL(window.location.href);
+      url.searchParams.delete('code');
+      url.searchParams.delete('state');
+      window.history.replaceState({}, '', url.toString());
+
       try {
         this.statusText = '正在验证身份...';
 
@@ -165,12 +182,6 @@ export default {
           return;
         }
 
-        // 清除 URL 中的 code 参数，避免刷新重复处理
-        const url = new URL(window.location.href);
-        url.searchParams.delete('code');
-        url.searchParams.delete('state');
-        window.history.replaceState({}, '', url.toString());
-
         // 存储 openid
         uni.setStorageSync('openid', openid);
 
@@ -219,6 +230,9 @@ export default {
      * 发起非静默授权获取用户信息（snsapi_userinfo，弹窗确认）
      */
     async startUserInfoAuth() {
+      // 清除上次使用的 code 标记
+      uni.removeStorageSync('__used_auth_code');
+
       const platform = detectPlatform();
       const appNo = getAppNo(platform);
 
@@ -288,16 +302,24 @@ export default {
         return;
       }
 
+      // 防止 code 重复提交
+      const usedCode = uni.getStorageSync('__used_auth_code');
+      if (usedCode === code) {
+        console.warn('[loading] code 已使用过，跳过');
+        return;
+      }
+      uni.setStorageSync('__used_auth_code', code);
+
+      // 立即清除 URL 中的 code/action 参数，避免刷新重复处理
+      const url = new URL(window.location.href);
+      url.searchParams.delete('code');
+      url.searchParams.delete('state');
+      url.searchParams.delete('action');
+      window.history.replaceState({}, '', url.toString());
+
       try {
         this.statusText = '正在获取用户信息...';
 
-        // 清除 URL 中的 code/action 参数，避免刷新重复处理
-        const url = new URL(window.location.href);
-        url.searchParams.delete('code');
-        url.searchParams.delete('state');
-        url.searchParams.delete('action');
-        window.history.replaceState({}, '', url.toString());
-
         // 用 code 调用 POST /api/v1/user/info 获取用户信息（必须用 POST，GET 是另一个端点）
         console.log('[loading] 请求 POST user/info, app_no:', appNo, 'code:', code);
         const res = await gatewayPost('/api/v1/user/info', {

src/pages/index/index.vue

@@ -500,11 +500,8 @@ export default {
       uni.clearStorageSync();
       uni.showToast({ title: '已退出登录', icon: 'success' });
       setTimeout(() => {
-        // 跳转到干净的URL，去掉code/state参数，避免重复使用旧code
-        const url = new URL(window.location.href);
-        url.searchParams.delete('code');
-        url.searchParams.delete('state');
-        window.location.href = url.toString();
+        uni.setStorageSync('__logout_flag', true);
+        uni.reLaunch({ url: '/pages/index/scan' });
       }, 1000);
     },
     onVConsoleChange(e) {

src/pages/index/scan.vue

@@ -67,6 +67,12 @@ export default {
     };
   },
   onLoad(options) {
+    // 退出登录后跳转过来，清除标记，停留在扫码页
+    if (uni.getStorageSync('__logout_flag')) {
+      uni.removeStorageSync('__logout_flag');
+      return;
+    }
+
     // 1. 检查 JWT（App.vue 已处理首次跳转，这里兜底）
     const token = uni.getStorageSync('token');
     if (!token) {

src/pages/order/detail.vue

@@ -146,7 +146,13 @@ export default {
   },
   onLoad(options) {
     this.orderId = options.order_id || '';
-    if (this.orderId) {
+    // 优先从缓存读取（订单列表/交易完成页跳转时已存入）
+    const cached = uni.getStorageSync('__order_detail_cache');
+    if (cached) {
+      this.order = cached;
+      this.orderId = cached.order_id || this.orderId;
+      uni.removeStorageSync('__order_detail_cache');
+    } else if (this.orderId) {
       this.fetchOrder();
     }
   },

src/pages/order/order.vue

@@ -335,6 +335,7 @@ export default {
     },
 
     goToDetail(order) {
+      uni.setStorageSync('__order_detail_cache', order);
       uni.navigateTo({ url: `/pages/order/detail?order_id=${order.order_id}` });
     },
     handlePay(order) {