ittwxcust/pages/buy/buy.js

// pages/buy/buy.js
import { goodsList } from '../../api/index'
import { submitOrder } from '../../api/pay'
import itt from '../../utils/util'
const app = getApp()

Page({

  /**
   * 页面的初始数据
   */
  data: {
    activeIndex: -1,
    goodsList: [],
    goodsId: '',
    orderAmount: '',
    num: '',
    appusername: '',
    appuserheadimg: ''
  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow() {
    this.getGoodsList()
    this.setData({
      appusername: app.globalData.userInfo.userName.length > 4 ? app.globalData.userInfo.userName.substring(0,4) : app.globalData.userInfo.userName,
      appuserheadimg: app.globalData.userInfo.headImg
    })
  },

  //获取套餐列表
  getGoodsList () {
    wx.showLoading({
      title: '加载中...',
      mask: true
    })
    goodsList({}).then(res => {
      wx.hideLoading()
      var response = res.data
      response.map((item, index) => {
        if (item.isRecommend) {
          this.setData({
            activeIndex: index,
            goodsId: item.goodsId,
            orderAmount: item.salePrice,
            num: item.donateNumber + item.useNumber
          })
        }
      })
      this.setData({
        goodsList: response
      })
    }).catch(e => {
      wx.hideLoading()
      wx.showModal({
        content: e,
        confirmColor: '#333',
        showCancel: false
      })
    })
  },

  handlePayType (e) {
    var index = Number(e.currentTarget.dataset.index)
    var goodsInfo = e.currentTarget.dataset.goodsinfo
    console.log(goodsInfo, 'goodsInfo');
    this.setData({
      activeIndex: index,
      goodsId: goodsInfo.goodsId,
      orderAmount: goodsInfo.salePrice,
      num: goodsInfo.donateNumber + goodsInfo.useNumber
    })
  },
  // 调用微信支付
  handleWXPay () {
    var data = {
      goodsId: this.data.goodsId,
      orderAmount: this.data.orderAmount,
      num: this.data.num
    }
    wx.showLoading({
      title: '加载中...',
      mask: true
    })
    submitOrder(data).then(res => {
      wx.hideLoading()
      // 拉起微信支付
      wx.requestPayment({
        timeStamp: res.data.timeStamp,
        nonceStr: res.data.nonceStr,
        package: res.data.packageStr,
        signType: res.data.signType,
        paySign: res.data.paySign,
        success (res) { 
          wx.showToast({
            title: '支付成功',
            icon: 'success'
          })
        },
        fail (res) { 
          console.log('weixin pay fail', res);
        }
      })
    }).catch(e => {
      wx.hideLoading()
      wx.showModal({
        content: e,
        confirmColor: '#333',
        showCancel: false
      })
    })
  },
  handleAppointment () {
    wx.navigateTo({
      url: '/pages/appointment/appointment',
    })
  }
})