json - 我的 JSON 解析失败

Question

我正在使用 SwiftyJSON、Alamofire_SwiftyJSON 和 Alamofire 库。我正在尝试解析我的响应，但它什么也没返回(“定义”无法打印)。JSON 不为空，它已得到响应。

所以，我的代码如下所示(没有失败，全部编译)

 Alamofire.request(request).responseSwiftyJSON { dataResponse in

                if let JSON = dataResponse.result.value  {
                    print(JSON)

                if let definitions = JSON["results"]["lexicalEntries"]["entries"]["senses"]["definitions"].string {
                    print(definitions)
                    print("Hello")
                    }}
            }

我的响应模型看起来像(这不是完整的响应，这只是我想要达到的目标:

{
  "results" : [
    {
      "language" : "en",
      "id" : "ace",
      "type" : "headword",
      "lexicalEntries" : [
        {
          "language" : "en",
          "entries" : [
            {
              "etymologies" : [
                "Middle English (denoting the ‘one’ on dice): via Old French from Latin as ‘unity, a unit’"
              ],
              "grammaticalFeatures" : [
                {
                  "type" : "Number",
                  "text" : "Singular"
                }
              ],
              "homographNumber" : "000",
              "senses" : [
                {
                  "definitions" : [
                    "a playing card with a single spot on it, ranked as the highest card in its suit in most card games"

我认为我的问题在于，我应该添加任何括号或任何符号吗？

if let definitions = JSON["results"]["lexicalEntries"]["entries"]["senses"]["definitions"].string

Answer 1

您没有在 JSON 响应中索引相应的数组，要访问您可以简单使用的定义数组

JSON['results'][0]['lexicalEntries'][0]['entries'][0]['senses'][0]['definitions']