mysql的下拉列表为空

Question

我正在尝试使用mysql数据库中的项创建一个下拉列表。问题是我的清单是空的。我环顾四周，但找不到解决办法。

{
  "locations": [
    {
      "ecommerceKey": "#BWI2",
      "country": "US",
      "state": "ARIZONA",
      "type": "AMZ",
      "value": "2010 Broening Hwy. Baltimore, MD 21224",
      "label": "#BWI2 - 2010 Broening Hwy. Baltimore, MD 21224 - Baltimore County"
    },
    {
      "ecommerceKey": "#BWI32",
      "country": "UK",
      "state": "ARIZONA",
      "type": "UPS",
      "value": "2010 Broening Hwy. Baltimore, MD 21224",
      "label": "#BWI2 - 2010 Broening Hwy. Baltimore, MD 21224 - Baltimore County"
    }
  ]
}

我哪里错了？请帮忙。