feat(pay): 微信支付状态查询

src/api/common.js

 let commonApiFun = function(vm) {
 	let loginWechatAuth = async (params = {}) => await vm.$u.post('/wxapp/unify/authorization', params)
 	let payOrder = async (params = {}) => await vm.$u.post('/pay/order', params)
+	let payQuery = async (params = {}) => await vm.$u.get('/pay/query', params)
 	const commonApi = {
 		loginWechatAuth,
-		payOrder
+		payOrder,
+		payQuery
 	}
 	return commonApi
 }

src/pages/learn/detail.vue

@@ -19,7 +19,6 @@ export default {
       ],
     }
   },
-  created() {},
   methods: {
     payOrder() {
       const data = {
@@ -48,13 +47,33 @@ export default {
         paySign: paySign,
         success: (res) => {
           console.log('success:' + JSON.stringify(res))
-          this.$u.toast('支付成功')
+          this.checkPayStatus(data.out_trade_no)
         },
         fail: (err) => {
           console.log('fail:' + JSON.stringify(err))
-          this.$u.toast('支付失败')
+          if (err.errMsg === 'requestPayment:fail cancel') {
+            this.$u.toast('取消支付')
+          } else {
+            this.checkPayStatus(data.out_trade_no)
+          }
         },
       })
+    },
+    checkPayStatus(no) {
+      const params = {
+        outTradeNo: no
+      }
+      this.$u.api.payQuery(params).then(res => {
+        if (res.trade_state === 'SUCCESS') {
+          this.$u.toast('支付成功')
+        } else if (res.trade_state === 'NOTPAY') {
+          this.$u.toast('请稍后核实订单状态，不要重复发起支付')
+        } else if (res.trade_state === 'PAYERROR') {
+         this.$u.toast('支付失败')
+        } else {
+          this.$u.toast(res.trade_state_desc)
+        }
+      })
     }
   },
 }