diff --git a/frontend/miniapp/app.js b/frontend/miniapp/app.js
index 8da4a24..ca88769 100644
--- a/frontend/miniapp/app.js
+++ b/frontend/miniapp/app.js
@@ -20,29 +20,33 @@ App({
     //通过分享链接/小程序码冷启动时缓存推广人，随登录请求一起绑定
     savePendingPromoter(options && options.query);
     this.loggingIn = true;
-    // 登录
-    wx.login({
-      success: (res) => {
-        util.request(api.AuthLoginByWeixin, {
-          code: res.code,
-          [PROMOTER_KEY]: getPendingPromoter(),
-        }, 'POST').then((res) => {
-          this.loggingIn = false;
-          if (res.code === 1) {
-            let userInfo = res.data.userinfo;
-            wx.setStorageSync('token', res.data.token);
-            wx.setStorageSync('userInfo', userInfo);
-            //推广关系为永久绑定，登录成功后无论是否绑定都无需再次提交
-            clearPendingPromoter();
-          }
-        }).catch((err) => {
-          this.loggingIn = false;
-          console.error('wxLogin failed:', err);
-        });
-      },
-      fail: () => {
+    // 登录。loginReady 给需要鉴权的请求等待，避免首屏带着空 token 发出去
+    this.loginReady = new Promise((resolve) => {
+      const finish = () => {
         this.loggingIn = false;
-      },
+        resolve();
+      };
+      wx.login({
+        success: (loginRes) => {
+          util.request(api.AuthLoginByWeixin, {
+            code: loginRes.code,
+            [PROMOTER_KEY]: getPendingPromoter(),
+          }, 'POST', { auth: false }).then((res) => {
+            if (res.code === 1) {
+              let userInfo = res.data.userinfo;
+              util.setToken(res.data.token);
+              wx.setStorageSync('userInfo', userInfo);
+              //推广关系为永久绑定，登录成功后无论是否绑定都无需再次提交
+              clearPendingPromoter();
+            }
+          }).catch((err) => {
+            console.error('wxLogin failed:', err);
+          }).then(finish);
+        },
+        fail: () => {
+          finish();
+        },
+      });
     });
   },
   onShow: function (options) {
diff --git a/frontend/miniapp/pages/demand/list/index.js b/frontend/miniapp/pages/demand/list/index.js
index c379806..18812dd 100644
--- a/frontend/miniapp/pages/demand/list/index.js
+++ b/frontend/miniapp/pages/demand/list/index.js
@@ -70,15 +70,10 @@ Page({
   //图片预览
   onImageView(e) {
     const { images, index } = e.currentTarget.dataset;
-    console.log('images', images);
-    console.log('index', index);
     wx.previewImage({
-      current: images[index], // 当前显示图片的http链接
-      urls: images, // 需要预览的图片http链接列表
-      success: (res) => {
-        console.log('预览成功');
-      },
-      complete: (res) => {
+      current: images[index],
+      urls: images,
+      complete: () => {
         this.setData({ fromPreview: true });
       }
     });
@@ -87,65 +82,69 @@ Page({
   // 加载需求列表数据
   async loadDemandList(fresh = false, options = {}) {
     const { silent = false } = options;
-    if (fresh) {
-      this.setData({
-        page: 1,
-        hasMore: true, // 刷新时重置
-      });
-      wx.pageScrollTo({
-        scrollTop: 0,
-      });
+    // 上拉加载：请求未结束或没有下一页时直接返回，避免并发把同一页打两次
+    if (!fresh && (this._loading || !this.data.hasMore)) {
+      return;
+    }
+    const seq = (this._listSeq || 0) + 1;
+    this._listSeq = seq;
+    this._loading = true;
+    const page = fresh ? 1 : this.data.page;
+    const { status, keywords, opType } = this.data;
+    if (fresh) {
+      wx.pageScrollTo({ scrollTop: 0 });
+    }
+    if (!silent) {
+      wx.showLoading({ title: '加载中', mask: true });
     }
-    wx.nextTick(() => {
-      console.log(this.data.hasMore, fresh);
-      if (!this.data.hasMore && !fresh) return;
-    });
-
     try {
-      const { page, status, keywords, opType } = this.data;
-      let params = { page, status, keywords, opType };
-      // 下拉刷新自带 loading 指示，不再叠加 showLoading
-      if (!silent) {
-        wx.showLoading({
-          title: '加载中',
-        });
+      const res = await fetchDemandList({ page, status, keywords, opType });
+      if (seq !== this._listSeq) {
+        return;
       }
-      const res = await fetchDemandList(params);
-      const nextList = res.data.data;
-      console.log(res)
-      console.log(nextList)
-      if (!silent) {
-        wx.hideLoading();
+      if (!res || res.code !== 1 || !res.data) {
+        wx.showToast({ title: (res && res.msg) || '加载失败', icon: 'none' });
+        return;
       }
-
-      // 判断是否还有更多数据
-      const { current_page, last_page } = res.data;
-      let newDemandList = fresh ? nextList : this.data.demandList.concat(nextList);
-      const hasMore = current_page < last_page;
-
-      // 只有在还有更多页时才自增page
+      const nextList = Array.isArray(res.data.data) ? res.data.data : [];
+      const hasMore = res.data.current_page < res.data.last_page;
+      const start = fresh ? 0 : this.data.demandList.length;
+      const patch = {
+        hasMore,
+        isEmpty: start + nextList.length === 0,
+      };
       if (hasMore) {
-        this.setData({
-          demandList: newDemandList,
-          page: page + 1,
-          hasMore
-        });
+        patch.page = page + 1;
+      } else if (fresh) {
+        patch.page = 1;
+      }
+      if (fresh) {
+        patch.demandList = nextList;
       } else {
-        this.setData({
-          demandList: newDemandList,
-          hasMore: false
+        nextList.forEach((item, i) => {
+          patch[`demandList[${start + i}]`] = item;
         });
       }
-
-      this.setData({
-        isEmpty: newDemandList.length > 0 ? false : true
-      });
-      // 检查内容是否超出最大高度，放到 nextTick 里
-      wx.nextTick(() => {
-        this.checkDescOverflow();
+      this.setData(patch, () => {
+        if (seq !== this._listSeq) {
+          return;
+        }
+        const indices = [];
+        for (let i = start; i < this.data.demandList.length; i++) {
+          indices.push(i);
+        }
+        this.checkDescOverflow(indices);
       });
     } catch (err) {
-      console.error('Failed to load demand list:', err);
+      if (seq === this._listSeq) {
+        console.error('Failed to load demand list:', err);
+        wx.showToast({ title: '网络异常，请重试', icon: 'none' });
+      }
+    } finally {
+      if (seq === this._listSeq) {
+        this._loading = false;
+        wx.hideLoading();
+      }
     }
   },
 
@@ -161,6 +160,13 @@ Page({
       await this.loadDemandList(true);
       return;
     }
+    const prev = {};
+    demandList.forEach((item) => {
+      prev[item.id] = { expanded: !!item.expanded, showToggle: !!item.showToggle };
+    });
+    const seq = (this._listSeq || 0) + 1;
+    this._listSeq = seq;
+    this._loading = true;
     try {
       const res = await fetchDemandList({
         page: 1,
@@ -169,39 +175,83 @@ Page({
         keywords,
         opType
       });
-      const nextList = res.data.data || [];
-      //不动 page，保持原有的分页进度；条目流转出当前标签后总数会变，需同步 hasMore
+      if (seq !== this._listSeq) {
+        return;
+      }
+      if (!res || res.code !== 1 || !res.data) {
+        return;
+      }
+      const raw = Array.isArray(res.data.data) ? res.data.data : [];
+      // 保留已展开状态，避免返回列表时把「查看全文」收回去
+      const nextList = raw.map((item) => {
+        const old = prev[item.id];
+        return {
+          ...item,
+          expanded: old ? old.expanded : false,
+          showToggle: old ? old.showToggle : false,
+        };
+      });
       this.setData({
         demandList: nextList,
         hasMore: res.data.current_page < res.data.last_page,
         isEmpty: nextList.length === 0
-      });
-      wx.nextTick(() => {
-        this.checkDescOverflow();
+      }, () => {
+        if (seq !== this._listSeq) {
+          return;
+        }
+        const indices = [];
+        nextList.forEach((item, index) => {
+          if (!prev[item.id]) {
+            indices.push(index);
+          }
+        });
+        this.checkDescOverflow(indices);
       });
     } catch (err) {
-      console.error('Failed to refresh demand list:', err);
+      if (seq === this._listSeq) {
+        console.error('Failed to refresh demand list:', err);
+      }
+    } finally {
+      if (seq === this._listSeq) {
+        this._loading = false;
+      }
     }
   },
 
-  // 检查每条内容是否超出最大高度，决定是否显示“查看全文”
-  checkDescOverflow() {
+  /**
+   * 只测量指定下标的描述高度，按路径更新 showToggle
+   * 不改 expanded，加载下一页时已展开的条目保持展开
+   * @param {number[]} indices
+   */
+  checkDescOverflow(indices) {
+    if (!indices || !indices.length) {
+      return;
+    }
+    const seq = this._listSeq;
     const query = this.createSelectorQuery();
-    const maxHeight = 60; // 120rpx ≈ 60px，实际可根据机型调整
-    this.data.demandList.forEach((item, index) => {
+    const maxHeight = 60; // 120rpx ≈ 60px
+    indices.forEach((index) => {
       query.select(`#desc-${index}`).boundingClientRect();
     });
     query.exec((rects) => {
-      const newList = this.data.demandList.map((item, idx) => {
-        // 只有内容高度大于 maxHeight+1 时才显示“查看全文”
-        const showToggle = rects[idx] && rects[idx].height > (maxHeight + 1);
-        return {
-          ...item,
-          expanded: false,
-          showToggle
-        };
+      if (seq !== this._listSeq || !rects) {
+        return;
+      }
+      const patch = {};
+      rects.forEach((rect, i) => {
+        const index = indices[i];
+        const item = this.data.demandList[index];
+        if (!item) {
+          return;
+        }
+        const showToggle = !!(rect && rect.height > maxHeight + 1);
+        if (!!item.showToggle !== showToggle) {
+          patch[`demandList[${index}].showToggle`] = showToggle;
+        }
       });
-      this.setData({ demandList: newList });
+      if (Object.keys(patch).length) {
+        this.setData(patch);
+      }
     });
   },
 
@@ -312,9 +362,10 @@ Page({
    * 页面上拉触底事件的处理函数
    */
   onReachBottom() {
-    if (this.data.hasMore) {
-      this.loadDemandList();
+    if (this._loading || !this.data.hasMore) {
+      return;
     }
+    this.loadDemandList();
   },
 
   /**
diff --git a/frontend/miniapp/pages/demand/list/index.wxml b/frontend/miniapp/pages/demand/list/index.wxml
index 9d5d794..9d6eae7 100644
--- a/frontend/miniapp/pages/demand/list/index.wxml
+++ b/frontend/miniapp/pages/demand/list/index.wxml
@@ -44,7 +44,7 @@
             {{item.expanded ? '收起' : '查看全文'}}
           </view>
           <view class="content-img-list">
-            <image wx:for="{{item.images}}" wx:for-item="img" wx:for-index="imgIndex" wx:key="index" class="content-img" mode="aspectFill" data-index="imgIndex" data-images="{{item.images}}" src="{{img}}" bind:tap="onImageView"></image>
+            <image wx:for="{{item.images}}" wx:for-item="img" wx:for-index="imgIndex" wx:key="*this" class="content-img" mode="aspectFill" data-index="{{imgIndex}}" data-images="{{item.images}}" src="{{img}}" bind:tap="onImageView"></image>
           </view>
         </view>
         <view class="bottom-row">
diff --git a/frontend/miniapp/pages/developer/join/index.js b/frontend/miniapp/pages/developer/join/index.js
index 4193af0..bd09690 100644
--- a/frontend/miniapp/pages/developer/join/index.js
+++ b/frontend/miniapp/pages/developer/join/index.js
@@ -28,7 +28,7 @@ Page({
     * 获取基础配置
     */
   getConfig() {
-    wx.$util.request(wx.$api.CommonGetMiniConfig, {}, 'GET').then(res => {
+    wx.$util.request(wx.$api.CommonGetMiniConfig, {}, 'GET', { auth: false }).then(res => {
       if (res.code === 1) {
         this.setData({
           languageLabels: res.data.languageLabels || [],
diff --git a/frontend/miniapp/pages/goods/list/index.js b/frontend/miniapp/pages/goods/list/index.js
index da029ce..a908dc6 100644
--- a/frontend/miniapp/pages/goods/list/index.js
+++ b/frontend/miniapp/pages/goods/list/index.js
@@ -89,62 +89,87 @@ Page({
 
   // 产品列表
   async loadGoodsList(reset = false) {
+    if (!reset && (this._loading || this.data.loadMoreStatus !== 0)) {
+      return;
+    }
+    const seq = (this._listSeq || 0) + 1;
+    this._listSeq = seq;
+    this._loading = true;
+    const page = reset ? 1 : this.data.page;
+    const { pageSize, keywords, tabValue } = this.data;
+    this.setData({
+      loadMoreStatus: 1,
+      loading: true,
+    });
     try {
-      const { loadMoreStatus, goodsList = [], page, pageSize, keywords, tabValue } = this.data;
-      const params = {
-        page: reset ? 1 : page,
+      const result = await fetchGoodsList({
+        page,
         categoryId: tabValue,
         pageSize,
         keywords,
-      };
-      if (loadMoreStatus !== 0 && !reset) return;
-      this.setData({
-        loadMoreStatus: 1,
-        loading: true,
       });
-      const result = await fetchGoodsList(params);
-      console.log('fetchGoodsList', result)
-      const data = result.data;
-      if (result.code == 1) {
-        const { spuList, totalCount = 0 } = data;
-        if (totalCount === 0 && reset) {
-          this.setData({
-            emptyInfo: {
-              tip: '抱歉，未找到相关商品',
-            },
-            total: totalCount,
-            hasLoaded: true,
-            loadMoreStatus: 0,
-            loading: false,
-            goodsList: [],
-          });
-          return;
-        }
-        const _goodsList = reset ? spuList : goodsList.concat(spuList);
-        const _loadMoreStatus = _goodsList.length === totalCount ? 2 : 0;
-        this.setData({
-          total: totalCount,
-          page: params.page + 1,
-          goodsList: _goodsList,
-          loadMoreStatus: _loadMoreStatus,
-        });
-      } else {
+      if (seq !== this._listSeq) {
+        return;
+      }
+      if (!result || result.code !== 1 || !result.data) {
         this.setData({
           loading: false,
+          hasLoaded: true,
+          loadMoreStatus: 0,
         });
         wx.showToast({
-          title: '查询失败，请稍候重试',
+          title: (result && result.msg) || '查询失败，请稍候重试',
+          icon: 'none',
+        });
+        return;
+      }
+      const { spuList = [], totalCount = 0 } = result.data;
+      if (totalCount === 0 && reset) {
+        this.setData({
+          emptyInfo: {
+            tip: '抱歉，未找到相关商品',
+          },
+          total: totalCount,
+          hasLoaded: true,
+          loadMoreStatus: 2,
+          loading: false,
+          goodsList: [],
+          page: 1,
+        });
+        return;
+      }
+      const start = reset ? 0 : this.data.goodsList.length;
+      const loaded = start + spuList.length;
+      const patch = {
+        total: totalCount,
+        page: page + 1,
+        loadMoreStatus: loaded >= totalCount ? 2 : 0,
+        hasLoaded: true,
+        loading: false,
+      };
+      if (reset) {
+        patch.goodsList = spuList;
+      } else {
+        spuList.forEach((item, i) => {
+          patch[`goodsList[${start + i}]`] = item;
         });
       }
+      this.setData(patch);
     } catch (error) {
+      if (seq !== this._listSeq) {
+        return;
+      }
+      console.error('loadGoodsList failed:', error);
       this.setData({
         loading: false,
+        hasLoaded: true,
+        loadMoreStatus: 0,
       });
+    } finally {
+      if (seq === this._listSeq) {
+        this._loading = false;
+      }
     }
-    this.setData({
-      hasLoaded: true,
-      loading: false,
-    });
   },
 
 
@@ -164,8 +189,11 @@ Page({
   },
 
   onReachBottom() {
+    if (this._loading || this.data.loadMoreStatus !== 0) {
+      return;
+    }
     const { goodsList, total } = this.data;
-    if (goodsList.length === total) {
+    if (goodsList.length >= total) {
       this.setData({
         loadMoreStatus: 2,
       });
diff --git a/frontend/miniapp/pages/message/list/index.js b/frontend/miniapp/pages/message/list/index.js
index 5a1e83c..d495c52 100644
--- a/frontend/miniapp/pages/message/list/index.js
+++ b/frontend/miniapp/pages/message/list/index.js
@@ -24,17 +24,18 @@ Page({
     loading: false
   },
 
-  onLoad() {
-    this.loadList(true);
-  },
-
   loadList(refresh = false) {
-    let { pageSize, list, currentType } = this.data;
+    if (!refresh && (this._loading || !this.data.hasMore)) {
+      return;
+    }
+    const seq = (this._listSeq || 0) + 1;
+    this._listSeq = seq;
+    this._loading = true;
+    const { pageSize, currentType } = this.data;
     const page = refresh ? 1 : this.data.page;
-
-    let params = {
-      page: page,
-      pageSize: pageSize,
+    const params = {
+      page,
+      pageSize,
     };
     //全部时不传 message_type，由后端返回全类型
     if (currentType !== '') {
@@ -42,25 +43,52 @@ Page({
     }
 
     fetchMessageList(params).then((res) => {
-      let newList = res.data.data;
-      let hasMore = res.data.current_page < res.data.last_page;
-      let unreadMap = res.data.unread_map || { '0': 0, '1': 0, '2': 0 };
+      if (seq !== this._listSeq) {
+        return;
+      }
+      if (!res || res.code !== 1 || !res.data) {
+        wx.showToast({ title: (res && res.msg) || '加载失败', icon: 'none' });
+        return;
+      }
+      const nextList = Array.isArray(res.data.data) ? res.data.data : [];
+      const hasMore = res.data.current_page < res.data.last_page;
+      const unreadMap = res.data.unread_map || { '0': 0, '1': 0, '2': 0 };
       //直接用后端统计的全量未读总数（含所有类型），
       //不再由前端累加 0/1/2，避免 message_type 超出这三个值时漏算
-      let totalUnread = res.data.unread_total !== undefined && res.data.unread_total !== null
+      const totalUnread = res.data.unread_total !== undefined && res.data.unread_total !== null
         ? Number(res.data.unread_total) || 0
         : Number(unreadMap['0'] || 0) + Number(unreadMap['1'] || 0) + Number(unreadMap['2'] || 0);
-      this.setData({
-        list: refresh ? newList : list.concat(newList),
-        page: page + 1,
+      const patch = {
+        page: hasMore ? page + 1 : page,
         unreadCount: res.data.unread_count,
-        unreadMap: unreadMap,
-        totalUnread: totalUnread,
-        hasMore: hasMore,
-        loading: false
-      });
-      //同步底部tabbar红点
+        unreadMap,
+        totalUnread,
+        hasMore,
+        loading: false,
+      };
+      if (refresh) {
+        patch.list = nextList;
+      } else {
+        const start = this.data.list.length;
+        nextList.forEach((item, i) => {
+          patch[`list[${start + i}]`] = item;
+        });
+      }
+      this.setData(patch);
       this.syncTabBarUnread(totalUnread);
+    }).catch((err) => {
+      if (seq !== this._listSeq) {
+        return;
+      }
+      console.error('loadList failed:', err);
+      wx.showToast({ title: '网络异常，请重试', icon: 'none' });
+    }).then(() => {
+      if (seq !== this._listSeq) {
+        return;
+      }
+      this._loading = false;
+      this.setData({ loading: false });
+      wx.stopPullDownRefresh();
     });
   },
 
@@ -99,15 +127,29 @@ Page({
   },
 
   onReachBottom() {
-    if (this.data.hasMore) {
-      this.loadList();
+    if (this._loading || !this.data.hasMore) {
+      return;
     }
+    this.loadList();
   },
 
   onClearUnreadTap() {
-    messageSetRead({ isAll: 1 }).then(() => {
+    if (this._clearing) {
+      return;
+    }
+    this._clearing = true;
+    messageSetRead({ isAll: 1 }).then((res) => {
+      if (!res || res.code !== 1) {
+        wx.showToast({ title: (res && res.msg) || '操作失败', icon: 'none' });
+        return;
+      }
       wx.showToast({ title: '全部已读', icon: 'success' });
       this.loadList(true);
+    }).catch((err) => {
+      console.error('messageSetRead failed:', err);
+      wx.showToast({ title: '网络异常，请重试', icon: 'none' });
+    }).then(() => {
+      this._clearing = false;
     });
   },
 
diff --git a/frontend/miniapp/services/good/fetchCategoryList.js b/frontend/miniapp/services/good/fetchCategoryList.js
index 4e32563..c4fd51b 100644
--- a/frontend/miniapp/services/good/fetchCategoryList.js
+++ b/frontend/miniapp/services/good/fetchCategoryList.js
@@ -1,5 +1,4 @@
 import { config } from '../../config/index';
-import { CatalogList } from '../../config/api';
 
 /** 获取商品列表 */
 function mockFetchGoodCategory() {
@@ -13,20 +12,10 @@ export function getCategoryList() {
   if (config.useMock) {
     return mockFetchGoodCategory();
   }
-  return new Promise((resolve, reject) => {
-    wx.request({
-      url: CatalogList,
-      method: 'GET',
-      success: (res) => {
-        if (res.statusCode === 200) {
-          resolve(res.data.data);
-        } else {
-          reject(new Error('获取分类列表失败'));
-        }
-      },
-      fail: (err) => {
-        reject(err);
-      }
-    });
+  return wx.$util.request(wx.$api.CatalogList, {}, 'GET', { auth: false }).then((res) => {
+    if (!res || res.code !== 1) {
+      return Promise.reject(new Error((res && res.msg) || '获取分类列表失败'));
+    }
+    return res.data;
   });
 }
diff --git a/frontend/miniapp/services/good/fetchGood.js b/frontend/miniapp/services/good/fetchGood.js
index 1037546..5ca9b43 100644
--- a/frontend/miniapp/services/good/fetchGood.js
+++ b/frontend/miniapp/services/good/fetchGood.js
@@ -12,5 +12,5 @@ export function fetchGood(ID = 0) {
   if (config.useMock) {
     return mockFetchGood(ID);
   }
-  return wx.$util.request(wx.$api.GoodsDetail, { id: ID }, 'GET');
+  return wx.$util.request(wx.$api.GoodsDetail, { id: ID }, 'GET', { auth: false });
 }
diff --git a/frontend/miniapp/services/home/home.js b/frontend/miniapp/services/home/home.js
index acc3aa8..ee17e7d 100644
--- a/frontend/miniapp/services/home/home.js
+++ b/frontend/miniapp/services/home/home.js
@@ -54,12 +54,12 @@ export function fetchHome() {
 
 /** 获取配置数据 */
 export function fetchConfig() {
-  return wx.$util.request(wx.$api.CommonGetMiniConfig, {}, 'GET');
+  return wx.$util.request(wx.$api.CommonGetMiniConfig, {}, 'GET', { auth: false });
 }
 
 /** 获取首页轮播（分类类型 banner） */
 export function fetchHomeBanners() {
-  return wx.$util.request(wx.$api.CatalogList, { type: 'banner' }, 'GET');
+  return wx.$util.request(wx.$api.CatalogList, { type: 'banner' }, 'GET', { auth: false });
 }
 
 // 与后端 site.platform_commission_ratio 默认值一致，接口失败时兜底
diff --git a/frontend/miniapp/utils/util.js b/frontend/miniapp/utils/util.js
index 6dbd48e..20f5ecb 100644
--- a/frontend/miniapp/utils/util.js
+++ b/frontend/miniapp/utils/util.js
@@ -1,6 +1,5 @@
 import dayjs from 'dayjs';
 var api = require('../config/api.js');
-var util = require('../utils/util.js');
 
 const formatTime = (date, template) => dayjs(date).format(template);
 
@@ -55,63 +54,147 @@ function testMobile(num) {
   }
 }
 
+const REQUEST_TIMEOUT = 15000;
+let tokenCache = '';
+let tokenLoaded = false;
+let reloginTask = null;
+
+function getAppSafe() {
+  try {
+    return getApp();
+  } catch (err) {
+    return null;
+  }
+}
+
+/** 内存缓存 token，避免每次请求都读 Storage */
+function getToken() {
+  if (!tokenLoaded) {
+    tokenCache = wx.getStorageSync('token') || '';
+    tokenLoaded = true;
+  }
+  return tokenCache;
+}
+
+function setToken(token) {
+  tokenCache = token || '';
+  tokenLoaded = true;
+  if (tokenCache) {
+    wx.setStorageSync('token', tokenCache);
+  } else {
+    wx.removeStorageSync('token');
+  }
+}
+
 /**
- * 封封微信的的request
+ * 本地还没有 token 时，等冷启动登录结束再发需要鉴权的请求
+ * 已有 token 则直接发，过期由 401 重登处理
  */
-function request(url, data = {}, method = "GET") {
-  return new Promise(function (resolve, reject) {
-    wx.request({
-      url: url,
-      data: data,
-      method: method,
-      header: {
-        'Content-Type': 'application/json',
-        // 'XDEBUG_TRIGGER': 'true',
-        'token': wx.getStorageSync('token')
-      },
-      success: function (res) {
-        if (res.statusCode == 200) {
+function ensureLogin() {
+  if (getToken()) {
+    return Promise.resolve();
+  }
+  const app = getAppSafe();
+  if (app && app.loginReady) {
+    return app.loginReady;
+  }
+  return Promise.resolve();
+}
 
-          if (res.data.errno == 401) {
-            //需要登录后才可以操作
+function isUnauthorized(statusCode, body) {
+  return statusCode === 401 || !!(body && body.code === 401);
+}
 
-            // let code = null;
-            // return login().then((res) => {
-            //     code = res.code;
-            //     return getUserInfo();
-            // }).then((userInfo) => {
-            //     //登录远程服务器
-            //     request(api.AuthLoginByWeixin, {
-            //         code: code,
-            //         userInfo: userInfo
-            //     }, 'POST').then(res => {
-            //         if (res.errno === 0) {
-            //             //存储用户信息
-            //             wx.setStorageSync('userInfo', res.data.userInfo);
-            //             wx.setStorageSync('token', res.data.token);
-            //             resolve(res);
-            //         } else {
-            //             reject(res);
-            //         }
-            //     }).catch((err) => {
-            //         reject(err);
-            //     });
-            // }).catch((err) => {
-            //     reject(err);
-            // })
-          } else {
-            resolve(res.data);
-          }
-        } else {
-          reject(res.errMsg);
+/** 登录失效后重新换 token，进行中的重登合并成一次 */
+function relogin() {
+  const app = getAppSafe();
+  if (app && app.loggingIn && app.loginReady) {
+    return app.loginReady.then(() => !!getToken());
+  }
+  if (reloginTask) {
+    return reloginTask;
+  }
+  reloginTask = login()
+    .then((wxRes) => request(api.AuthLoginByWeixin, { code: wxRes.code }, 'POST', { auth: false }))
+    .then((res) => {
+      if (res && res.code === 1 && res.data && res.data.token) {
+        setToken(res.data.token);
+        if (res.data.userinfo) {
+          wx.setStorageSync('userInfo', res.data.userinfo);
         }
-
-      },
-      fail: function (err) {
-        reject(err)
+        return true;
       }
+      return false;
     })
+    .catch((err) => {
+      console.error('relogin failed:', err);
+      return false;
+    })
+    .then((ok) => {
+      reloginTask = null;
+      return ok;
+    });
+  return reloginTask;
+}
+
+/**
+ * 统一请求
+ * @param {string} url
+ * @param {object} data
+ * @param {string} method
+ * @param {{auth?: boolean, timeout?: number, retried?: boolean}} options
+ * auth 默认 true：没有 token 时等待登录，401 时重登并重试一次
+ * auth 为 false：免登录接口（分类、首页配置等）立即发送，不等待登录
+ */
+function request(url, data = {}, method = 'GET', options = {}) {
+  const auth = options.auth !== false;
+  const timeout = options.timeout || REQUEST_TIMEOUT;
+  const retried = !!options.retried;
+
+  const send = () => new Promise((resolve, reject) => {
+    const header = { 'Content-Type': 'application/json' };
+    const token = getToken();
+    if (token) {
+      header.token = token;
+    }
+    wx.request({
+      url,
+      data,
+      method,
+      timeout,
+      header,
+      success(res) {
+        const body = res.data && typeof res.data === 'object'
+          ? res.data
+          : { code: 0, msg: '网络异常', data: null };
+        if (res.statusCode === 200 || isUnauthorized(res.statusCode, body)) {
+          resolve({ unauthorized: isUnauthorized(res.statusCode, body), body });
+          return;
+        }
+        reject((body && body.msg) || res.errMsg || '网络异常');
+      },
+      fail(err) {
+        reject(err);
+      },
+    });
   });
+
+  const dispatch = () => send().then((result) => {
+    if (result.unauthorized && auth && !retried) {
+      return relogin().then((ok) => {
+        if (!ok) {
+          return result.body;
+        }
+        return request(url, data, method, { auth: true, timeout, retried: true });
+      });
+    }
+    return result.body;
+  });
+
+  if (!auth) {
+    return dispatch();
+  }
+  return ensureLogin().then(dispatch);
 }
 
 /**
@@ -194,40 +277,6 @@ function showSuccessToast(msg) {
   })
 }
 
-function sentRes(url, data, method, fn) {
-  data = data || null;
-  if (data == null) {
-    var content = require('querystring').stringify(data);
-  } else {
-    var content = JSON.stringify(data); //json format
-  }
-
-  var parse_u = require('url').parse(url, true);
-  var isHttp = parse_u.protocol == 'http:';
-  var options = {
-    host: parse_u.hostname,
-    port: parse_u.port || (isHttp ? 80 : 443),
-    path: parse_u.path,
-    method: method,
-    headers: {
-      'Content-Type': 'application/json',
-      'Content-Length': Buffer.byteLength(content, "utf8"),
-      'Trackingmore-Api-Key': '1b70c67e-d191-4301-9c05-a50436a2526d'
-    }
-  };
-  var req = require(isHttp ? 'http' : 'https').request(options, function (res) {
-    var _data = '';
-    res.on('data', function (chunk) {
-      _data += chunk;
-    });
-    res.on('end', function () {
-      fn != undefined && fn(_data);
-    });
-  });
-  req.write(content);
-  req.end();
-}
-
 function loginNow() {
   let userInfo = wx.getStorageSync('userInfo');
   if (userInfo == '') {
@@ -235,10 +284,10 @@ function loginNow() {
       success: (res) => {
         request(api.AuthLoginByWeixin, {
           code: res.code
-        }, 'POST').then(function (res) {
+        }, 'POST', { auth: false }).then(function (res) {
           if (res.code === 1) {
             let userInfo = res.data.userInfo;
-            wx.setStorageSync('token', res.data.token);
+            setToken(res.data.token);
             wx.setStorageSync('userInfo', userInfo);
           }
         });
@@ -563,6 +612,8 @@ module.exports = {
   phoneRegCheck,
   formatTimeNum: formatTimeNum,
   request,
+  getToken,
+  setToken,
   redirect,
   showErrorToast,
   showSuccessToast,
@@ -570,7 +621,6 @@ module.exports = {
   login,
   getUserInfo,
   testMobile,
-  sentRes,
   loginNow,
   getTextLength,
   transferBorder,