// succ.wxml
<view>WIFI ssid：{{wifissid}}</view>
<view>WIFI bssid：{{wifiBssid}}</view>

// succ.js
var app = getApp()
Page({
  data: {
    wifissid: '',  // WIFI ssid
    wifiBssid: ''  // WIFI bssid
  },
  onLoad: function (e) {  // 获取参数
    var that = this;
    wx.getConnectedWifi({
      success: function(e){
        that.setData({
          wifissid: e.wifi.SSID,
          wifiBssid: e.wifi.BSSID
        })
      }
    })
  }
})