小程序formid获取

Tip：这个e.detail.fromId，就是formid，真机才会产生，模拟器中为“the formId is a mock one”

wxml:

<form bindsubmit="submit" report-submit='true' class='formid'>
          <button form-type="submit" >
            <image wx:if="{{select==item.name}}" src="{{item.icon_s}}"></image>
            <image wx:else src="{{item.icon}}"></image>
            <text>{{item.name}}</text>
            <text class='red-dot' wx:if="{{item.name === '消息' && xiaoxishu}}">{{xiaoxishu}}</text>
          </button>
        </form>

js: 

submit: function (e) {
      // console.log(e.detail.formId, "我是formID");
      app.ajax({
        method: 'post',
        url: app.jk.setcustomerformId,
        data: {
          Uid: app.get('userId'),
          FormId: e.detail.formId
        },
        success: (data) => {
        },
        error: (err) => {
          console.log(err)
        }
      })
    }

js里边调用的接口是我们后台的接口。