微信小程序picker选择器渲染json数据

{
    "msg": "查询成功",
    "code": 1,
    "data": [{
        "id": 1413,
        "organName": "广西化工有限公司"
    }, {
        "id": 1414,
        "organName": "安全环保部"
    }, {
        "id": 1415,
        "organName": "综合管理部"
    }, {
        "id": 1416,
        "organName": "财务部"
    }, {
        "id": 1417,
        "organName": "制造部"
    }, {
        "id": 1418,
        "organName": "设备专业"
    }, {
        "id": 1419,
        "organName": "仪表专业"
    }, {
        "id": 1420,
        "organName": "电气专业"
    }, {
        "id": 1421,
        "organName": "工艺专业"
    }, {
        "id": 1422,
        "organName": "调度管理"
    }, {
        "id": 1423,
        "organName": "气化装置"
    }, {
        "id": 1424,
        "organName": "甲醇装置"
    }, {
        "id": 1425,
        "organName": "醋酸装置"
    }, {
        "id": 1426,
        "organName": "乙二醇装置"
    }, {
        "id": 1427,
        "organName": "测试机构"
    }]
}

<form catchsubmit="confirmPublish">
    <view class="cu-form-group margin-top">
        <view class="title d-flex">被访部门
        </view>
        <picker  class="w-100 h-100 borderBottom flex-1 d-flex jc-start ai-center" style="height:100rpx;font-size: 30rpx;color: #555;" bindchange="bindPickerOrgan" value="{{index2}}" range="{{organarray}}">
            <view class="picker"  >
            {{organarray[visitOrganId]}}
            </view>
        </picker> 
    </view>
</form>

Page({
  data: {
    organarray: [],
    visitOrganId: 0,
  },
  //部门
  bindPickerOrgan: function (e) {
    console.log('picker发送选择改变，携带值为', e.detail.value)
    this.setData({
      visitOrganId: e.detail.value
    })
  },
  onLoad: function (options) {
    this.getOrgans()
  },
  //获取部门节点
  getOrgans: function () {
    var that = this;
    wx.request({
      url: 'http://192.1xxx8.4.xxx3:8093/cs-applet/subscribe/getOrgans',
      header: {
        'content-type': 'application/json',
      },
      method: 'get',
      success: res => {
        that.setData({
          organarray: (res.data.data || []).map(a => {
            return a.organName
          })
        })
      },
    })
  },
})

/* 确认发布的按钮 */
.btn1 {
  width: 90%;
  margin-top: 70rpx;
  margin-bottom: 70rpx;
  background-color: #09BB07;
  color: white;
  font-size: 33rpx;
  border-radius:13rpx;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
}
.d-flex {
display: flex;
}
.cu-form-group .title {
text-align: justify;
padding-right: 30rpx;
font-size: 30rpx;
position: relative;
height: 60rpx;
line-height: 60rpx;
}
.cu-form-group {
    background-color: var(--white);
    padding: 1rpx 30rpx;
    display: flex;
    align-items: center;
    min-height: 100rpx;
    justify-content: space-between;
}
.borderBottom {
  border-bottom: 1rpx solid #eee;
}
.ai-center {
align-items: center;
}
.jc-start {
justify-content: flex-start;
}
.flex-1 {
flex: 1;
}
.cu-form-group input {
    flex: 1;
    font-size: 30rpx;
    color: #555;
    padding-right: 20rpx;
}