fix login

src/pages/login/index.vue

@@ -37,6 +37,7 @@ export default {
   },
   data() {
     return {
+      code: "",
       session_key: "",
       shopName: "",
       logoUrl: "",
@@ -66,13 +67,40 @@ export default {
     };
   },
   created() {},
+  onShow() {
+    wx.checkSession({
+      success : () => {
+        //session_key 未过期，并且在本生命周期一直有效
+        wx.login({
+          success: res => {
+            this.code = res.code;
+          },
+          fail: err => {
+            reject(err);
+          }
+        }) //重新登录
+      },
+      fail : () => {
+        // session_key 已经失效，需要重新执行登录流程
+        wx.login({
+          success: res => {
+            this.code = res.code;
+          },
+          fail: err => {
+            reject(err);
+          }
+        }) //重新登录
+      }
+    })
+  },
   onLoad(options) {
     Object.assign(this.$data, this.$options.data()); //mpvue 的混合周期 使用小程序生命周期数据未初始化
     if (options.back) {
       this.backPath = options.back;
     }
     if (options.params) {
-      this.backParams = serialize(options.params);
+      this.defalutBackParams= serialize(options.params);
+      this.backParams = this.defalutBackParams;
       let params = JSON.parse(options.params);
       this.fromType = params.fromType;
     }
@@ -102,11 +130,8 @@ export default {
     },
     init() {
       return new Promise((resolve, reject) => {
-        wx.login({
-          success: res => {
-            if (res.code) {
         login
-                .miniLogin({ code: res.code,
+        .miniLogin({ code: this.code,
           spokesmanRelId : this.$store.state.spokesmanRelId,
           spokesmanGroupId : this.$store.state.spokesmanGroupId,
           spokesmanShopId : this.$store.state.spokesmanShopId
@@ -121,15 +146,10 @@ export default {
         .catch(err => {
           reject(err);
         });
-            }
-          },
-          fail: err => {
-            reject(err);
-          }
-        });
       });
     },
     getUserInfo: function(e) {
+      this.backParams=this.defalutBackParams
       wx.showLoading({
         title: "加载中"
       });
@@ -189,6 +209,15 @@ export default {
         //   }&params=${encodeURIComponent(this.backParams)}`
         // });
         // 跳转回小程序页面
+        var data = wx_decode(
+            this.appid,
+            this.session_key,
+            e.mp.detail.encryptedData,
+            e.mp.detail.iv
+        );
+        this.userInfo = JSON.parse(e.target.rawData);
+
+        this.$store.commit('setUserInfo',this.userInfo)
         this.pushPageType();
       } else {
         var data = wx_decode(
@@ -200,6 +229,7 @@ export default {
         this.unionId = data.unionId || "";
         this.userInfo = JSON.parse(e.target.rawData);
         console.log(this.userInfo, "this.userInfo");
+        this.$store.commit('setUserInfo',this.userInfo)
 
         if (this.unionId) {
           login