如何使用Alamofire和SwiftyJSON访问嵌套的JSON值？

Question

我想使用swiftyJSON和Alamofire访问嵌套的JSON结果。我的印刷价值很低，我相信我没有正确地做到这一点。我的参数应该是什么？我想获得在http://quotes.rest/qod.json

func getAPI() { 
    Alamofire.request(.GET, "http://quotes.rest/qod.json", parameters: ["contents": "quotes"]) 
     .responseJSON { response in 
      if let JSON = response.result.value { 
       print(JSON["quote"]) 

      } 
    } 
} 

Answer 1

在你的JSON quotes是一个数组，所以如果你要访问的第一个对象的quote你应该通过访问第一个对象做到这一点：

func getAPI() { 
     Alamofire.request(.GET, "http://quotes.rest/qod.json", parameters: ["contents": "quotes"]) 
      .responseJSON { response in 
       if let jsonValue = response.result.value { 
        let json = JSON(jsonValue) 
        if let quote = json["contents"]["quotes"][0]["quote"].string{ 
        print(quote) 
        } 
       } 
     } 
    } 

Answer 2

位于报价值。如果JSON的语法是不正确的，因为它完全打印反正你应该注意什么是错的。

func getAPI() { 
Alamofire.request(.GET, "http://quotes.rest/qod.json", parameters: ["contents": "quotes"]) 
    // JSON response 
     .responseJSON { response in switch response.result { 
     case .Failure(let error): 
      // got an error in getting the data, need to handle it 
      print("error calling GET, json response type :") 
      // print alamofire error code 
      let statusCode = error.code 
      print("error code json : \(statusCode)") 
      // print json response from server 
      if let data = response.data { 
       print("Response data: \(NSString(data: data, encoding: NSUTF8StringEncoding)!)") 
      } 
      // print http status code plus error string 
      print(NSHTTPURLResponse.localizedStringForStatusCode(statusCode)) 
      if let httpResponse : NSHTTPURLResponse = response.response { 
       print("HTTP Response statusCode: \(httpResponse.statusCode)") 
      } 
     case .Success(_): 
      let statusCode = (response.response?.statusCode)! 
      print("status code json : \(statusCode)") 
      print("there is a response json") 
      //print(value) 
      // parse the result as JSON, since that's what the API provides and save datas as new user in coreData 
      guard let data = response.data else { 
       print("Error parsing response data") 
       return 
      } 
      let json = JSON(data: data) 
      // access first element of the array 
      if let postContent = json["contents"]["quotes"][0]["quote"].string{ 
      // deal with json 
      } 
     } 
}