vue 微信公众号项目获取code

getFormList(){
   getFormList({id:this.id }).then(res => {
        if (window.location.search.indexOf('code') < 0) { // 当前的url地址不存在code 就跳转到服务端返回的微信地址
          window.location.href = res
        } else if (window.location.search.indexOf('code') > -1) {
          // alert(window.location.href)
          // alert(this.getUrlKey('code'))
          var code = this.getUrlKey('code')
       
          getFormList({id: this.id }).then(res => {
            this.list = res.data
            this.openid = res.wxuserinfo.openid
          })
        }
      })
},
getUrlKey: function(name) { // 截取地址栏参数
      return decodeURIComponent(
        (new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)').exec(location.href) || [, ''])[1].replace(/\+/g, '%20')) || null
    },