如何讀取Java中沒有名稱的元素的JSON響應（SurveyGizmo調查響應API）

我正在使用surveygizmo API檢索調查響應，但是在他們的JSON響應中（下例）我遇到了兩個問題。如何讀取Java中沒有名稱的元素的JSON響應（SurveyGizmo調查響應API）

我怎麼會通過迭代問題：回答對，似乎沒有要與它相關聯的，所以我不能做一個JSONObject.getJSONObject（「字段名」）字段名;或JSONArray.getJSONArray（「fieldname」）;由於調查的跳過邏輯，我不會知道我需要提出什麼問題，所以我也無法通過'問題（＃）'得到答案。
我需要問題的問題，但是鑑於密鑰是「[question（＃）]」，我將如何獲得questionId，因爲我不相信它是JSONObject或JSONArray，我應該如何處理它作爲一個字符串，並執行正則表達式搜索以檢索「問題（）」中的＃號？

JSONResponse例

{ 
    "result_ok":true, 
    "total_count":"1", 
    "page":1, 
    "total_pages":1, 
    "results_per_page":50, 
    "data":[{ 
     "id":"1", 
     "contact_id":"", 
     "status":"Complete", 
     "is_test_data":"1", 
     "datesubmitted":"2013-02-07 12:00:00", 
     "sResponseComment":"", 
     "[question(3)]":"15", 
     "[question(4), option(10003)]":"Baseball", 
     "[question(4), option(10007)]":"Basketball", 
     "[question(4), option(10009)]":"Hockey", 
     "[question(12)]":"No", 
     "[question(14)]":"Yes", 
     "[question(15)]":"Abc", 
     "[question(16)]":"No" 
    }] 
}

來源

2013-02-15 Felix

你可能會更好使用[Jackson]（http://wiki.fasterxml.com/JacksonHome） – 2013-02-15 22:54:47

你需要手工來分析問題「數」的關鍵數據。

如果您沒有預測到該格式的多變性，或者您可以構建一個簡單的「解析器」，並在逗號分割並使用解析的數據構建POJO，則可以使用正則表達式。

來源

2013-02-15 23:14:08

我一直在做類似的項目。這是我到目前爲止。

Model.cs：

using Newtonsoft.Json; 
using System; 
using System.Collections.Generic; 
using System.ComponentModel.DataAnnotations; 
using System.Linq; 
using System.Text; 
using System.Text.RegularExpressions; 
using System.Threading.Tasks; 

namespace DeSerializer 
{ 
    [JsonObject] 
    public class Responses 
    { 
     public bool result_ok { get; set; } 
     public string total_count { get; set; } 
    public int page { get; set; } 
    public int total_pages { get; set; } 
    public int results_per_page { get; set; } 
    public SurveyResponse[] Data { get; set; } 
} 

[JsonObject] 
// Here is the magic: When you see this type, use this class to read it. 
// If you want, you can also define the JsonConverter by adding it to 
// a JsonSerializer, and parsing with that. 
[JsonConverter(typeof(DataItemConverter))] 
public class SurveyResponse 
{ 
    public string id { get; set; } 
    public string contact_id { get; set; } 
    public string status { get; set; } 
    public string is_test_data { get; set; } 
    public DateTime datesubmitted { get; set; } 
    public string sResponseComment { get; set; } 
    public List<SurveyQuestion> SurveyQuestions { get; set; } 
    public List<SurveyUrl> SurveyUrls { get; set; } 
    public List<SurveyGeoData> SurveyGeoDatas { get; set; } 
    public List<SurveyVariable> SurveyVariables { get; set; } 
    public List<SurveyVariableShown> SurveyVariableShowns { get; set; } 
    public List<SurveyQuestionHidden> SurveyQuestionHiddens { get; set; } 
    public List<SurveyQuestionOption> SurveyQuestionOptions { get; set; } 
    public List<SurveyQuestionMulti> SurveyQuestionMulties { get; set; } 
} 

public class SurveyQuestion 
{ 
    [Key] 
    public int QuestionID { get; set; } 
    public string QuestionResponse { get; set; } 
} 

public class SurveyUrl 
{ 
    [Key] 
    public int SurveyUrlID { get; set; } 
    public string Name { get; set; } 
    public string Value { get; set; } 
} 

public class SurveyGeoData 
{ 
    [Key] 
    public int SurveyGeoDataID { get; set; } 
    public string Name { get; set; } 
    public string Value { get; set; } 
} 

public class SurveyVariable 
{ 
    [Key] 
    public int SurveyVariableID { get; set; } 
    public string Value { get; set; } 
} 

public class SurveyVariableShown 
{ 
    [Key] 
    public int SurveyVariableShownID { get; set; } 
    public string Name { get; set; } 
    public string Value { get; set; } 
} 

public class SurveyQuestionHidden 
{ 
    [Key] 
    public int QuestionID { get; set; } 
    public string QuestionResponse { get; set; } 
} 

public class SurveyQuestionOption 
{ 
    [Key] 
    public int OptionID { get; set; } 
    public int QuestionID { get; set; } 
    public string QuestionResponse { get; set; } 
} 

public class SurveyQuestionMulti 
{ 
    [Key] 
    public int OptionID { get; set; } 
    public int QuestionID { get; set; } 
    public string QuestionResponse { get; set; } 
} 

public class DataItemConverter : JsonConverter 
{ 
    public override bool CanConvert(Type objectType) 
    { 
     return objectType == typeof(SurveyResponse); 
    } 

    public override bool CanRead 
    { 
     get { return true; } 
    } 

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer) 
    { 
     var value = (SurveyResponse)existingValue; 
     if (value == null) 
     { 
      value = new SurveyResponse(); 
      value.SurveyQuestions = new List<SurveyQuestion>(); 
      value.SurveyUrls = new List<SurveyUrl>(); 
      value.SurveyGeoDatas = new List<SurveyGeoData>(); 
      value.SurveyVariables = new List<SurveyVariable>(); 
      value.SurveyVariableShowns = new List<SurveyVariableShown>(); 
      value.SurveyQuestionHiddens = new List<SurveyQuestionHidden>(); 
      value.SurveyQuestionOptions = new List<SurveyQuestionOption>(); 
      value.SurveyQuestionMulties = new List<SurveyQuestionMulti>(); 
     } 

     // Skip opening { 
     reader.Read(); 

     while (reader.TokenType == JsonToken.PropertyName) 
     { 
      var name = reader.Value.ToString(); 
      reader.Read(); 

      // Here is where you do your magic 
      string input = name; 

      //[question(1)] 
      //[question(11)] 
      //[question(111)] 
      //[question(1234)] 
      //[question(12345)] 
      //[url(12345)] 
      //[variable(12345)] 
      //SINGLE ANSWER 
      Match matchSingleAnswer = Regex.Match(input, @"\[(question|calc|comment)\(([0-9]{5}|[0-9]{4}|[0-9]{3}|[0-9]{2}|[0-9]{1})\)]", 
       RegexOptions.IgnoreCase); 


      //SINGLE VARIABLE 
      Match matchSingleVariable = Regex.Match(input, @"\[(variable)\(([0-9]{5}|[0-9]{4}|[0-9]{3}|[0-9]{2}|[0-9]{1})\)]", 
       RegexOptions.IgnoreCase); 

      //URL 
      Match matchUrl = Regex.Match(input, @"\[url", 
       RegexOptions.IgnoreCase); 

      //GEO DATA 
      Match matchGeo = Regex.Match(input, @"\[variable\(""STANDARD_", 
       RegexOptions.IgnoreCase); 

      //VARIABLES SHOWN 
      Match matchVariables = Regex.Match(input, @"\[variable", 
       RegexOptions.IgnoreCase); 

      //[question(1), option(\"1 
      //[question(11), option(\"2 
      //[question(111), option(\"1 
      //[question(1234), option(\"1 
      //[question(12345), option(\"1 
      //////////////////////////////////////////// 
      ////////The \ values are being removed. 
      //////////////////////////////////////////// 
      //OPTIONAL ANSWERS 
      string myReg = @"\[(question|url|variable|calc|comment)\(([0-9]{5}|[0-9]{4}|[0-9]{3}|[0-9]{2}|[0-9]{1})\),\ option\(""[0-9]"; 
      Match matchOption = Regex.Match(input, myReg, 
       RegexOptions.IgnoreCase); 

      //[question(1), option(1 
      //[question(11), option(2 
      //[question(111), option(1 
      //[question(1234), option(1 
      //[question(12345), option(1 
      //MULTIPLE CHOICE 
      Match matchMultiSelect = Regex.Match(input, @"\[question\(([0-9]{5}|[0-9]{4}|[0-9]{3}|[0-9]{2}|[0-9]{1})\),\ option\([0-9]", 
       RegexOptions.IgnoreCase); 



      //[question(1), option(0) 
      //[question(11), option(0) 
      //[question(111), option(0) 
      //[question(1234), option(0) 
      //[question(12345), option(0) 
      //HIDDEN 
      Match matchHiddenValue = Regex.Match(input, @"\[question\(([0-9]{5}|[0-9]{4}|[0-9]{3}|[0-9]{2}|[0-9]{1})\),\ option\(0\)", 
       RegexOptions.IgnoreCase); 


      if (matchSingleAnswer.Success) 
      { 
       int index = int.Parse(name.Substring(10, name.IndexOf(')') - 10)); 
       SurveyQuestion sq = new SurveyQuestion(); 
       sq.QuestionID = index; 
       sq.QuestionResponse = serializer.Deserialize<string>(reader); 
       value.SurveyQuestions.Add(sq); 
      } 
      else if (matchUrl.Success) 
      { 
       string urlName = name.Substring(6, name.Length - 9); 
       SurveyUrl su = new SurveyUrl(); 
       su.Name = urlName; 
       su.Value = serializer.Deserialize<string>(reader); 
       value.SurveyUrls.Add(su); 
      } 
      else if (matchGeo.Success) 
      { 
       string geoName = name.Substring(11, name.Length - 14); 
       SurveyGeoData sgd = new SurveyGeoData(); 
       sgd.Name = geoName; 
       sgd.Value = serializer.Deserialize<string>(reader); 
       value.SurveyGeoDatas.Add(sgd); 
      } 
      else if (matchSingleVariable.Success) 
      { 
       int index = int.Parse(name.Substring(10, name.IndexOf(')') - 10)); 
       SurveyVariable sv = new SurveyVariable(); 
       sv.SurveyVariableID = index; 
       sv.Value = serializer.Deserialize<string>(reader); 
       value.SurveyVariables.Add(sv); 
      } 
      else if (matchVariables.Success) 
      { 
       string varName = name.Substring(11, name.Length - 14); 
       SurveyVariableShown svs = new SurveyVariableShown(); 
       svs.Name = varName; 
       svs.Value = serializer.Deserialize<string>(reader); 
       value.SurveyVariableShowns.Add(svs); 
      } 
      else if (matchHiddenValue.Success) 
      { 
       int index = int.Parse(name.Substring(10, name.IndexOf(')') - 10)); 
       SurveyQuestionHidden sqh = new SurveyQuestionHidden(); 
       sqh.QuestionID = index; 
       sqh.QuestionResponse = serializer.Deserialize<string>(reader); 
       value.SurveyQuestionHiddens.Add(sqh); 
      } 
      else if (matchMultiSelect.Success) 
      { 
       //Multiple choice question selections 
       string[] nameArray = name.Split(')'); 
       string questionPart = nameArray[0]; 
       string optionPart = nameArray[1]; 
       int index = int.Parse(questionPart.Substring(10, questionPart.Length - 10)); 
       int indexSub = int.Parse(optionPart.Substring(9, optionPart.Length - 9)); 

       SurveyQuestionMulti sqm = new SurveyQuestionMulti(); 
       sqm.OptionID = indexSub; 
       sqm.QuestionID = index; 
       sqm.QuestionResponse = serializer.Deserialize<string>(reader); 
       value.SurveyQuestionMulties.Add(sqm); 

       //NEED TO ADD A BASE QUESTION TO POINT TO ALL THE MULTI 
       //SurveyQuestion sq = new SurveyQuestion(); 
       //sq.QuestionID = sqm.QuestionID; 
       //sq.QuestionResponse = ""; 
       //value.SurveyQuestions.Add(sq); 
      } 
      else if (matchOption.Success) 
      { 
       //Optional text value for a given question 
       string[] nameArray = name.Split(')'); 
       string questionPart = nameArray[0]; 
       string optionPart = nameArray[1]; 
       int index = int.Parse(questionPart.Substring(10, questionPart.Length - 10)); 
       int indexSub = int.Parse(optionPart.Substring(10, 5)); 

       SurveyQuestionOption sqo = new SurveyQuestionOption(); 
       sqo.OptionID = indexSub; 
       sqo.QuestionID = index; 
       sqo.QuestionResponse = serializer.Deserialize<string>(reader); 
       value.SurveyQuestionOptions.Add(sqo); 
      } 
      else 
      { 
       var property = typeof(SurveyResponse).GetProperty(name); 
       if (property != null) 
        property.SetValue(value, serializer.Deserialize(reader, property.PropertyType), null); 
      } 

      // Skip the , or } if we are at the end 
      reader.Read(); 
     } 

     return value; 
    } 

    public override bool CanWrite 
    { 
     get { return false; } 
    } 

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) 
    { 
     throw new NotImplementedException(); 
    } 
} 
}

而且，從Program.cs文件中的主要功能：

  string webReq = String.Empty; 

     //Office Energy - Allan Testing 
     webReq += "https://restapi.surveygizmo.com/head/survey/xxxxxx"; 
     webReq += "/surveyresponse/"; 
     webReq += "?user:pass=xxxxxxxx:xxxxxxx"; 
     webReq += "&page=101&resultsperpage=1"; 

     HttpWebRequest request = WebRequest.Create(webReq) as HttpWebRequest; 
     var results = String.Empty; 
     using (HttpWebResponse response = request.GetResponse() as HttpWebResponse) 
     { 
      StreamReader reader = new StreamReader(response.GetResponseStream()); 
      results += reader.ReadToEnd(); 
     } 


     Responses responses = new JavaScriptSerializer().Deserialize<Responses>(results); 


     Console.WriteLine("FEED HEADERS:"); 
     Console.WriteLine(""); 
     Console.WriteLine("result_ok: " + responses.result_ok); 
     Console.WriteLine("total_count: " + responses.total_count); 
     Console.WriteLine("page: " + responses.page); 
     Console.WriteLine("total_pages: " + responses.total_pages); 
     Console.WriteLine("results_per_page: " + responses.results_per_page); 
     Console.WriteLine(""); 
     Console.WriteLine(""); 


     foreach (var item in responses.Data) 
     { 
      Console.WriteLine("id: " + item.id); 
      Console.WriteLine("contact_id: " + item.contact_id); 
      Console.WriteLine("status: " + item.status); 
      Console.WriteLine("is_test_data: " + item.is_test_data); 
      Console.WriteLine("datesubmitted: " + item.datesubmitted); 
      Console.WriteLine("sResponseComment: " + item.sResponseComment); 
      Console.WriteLine(""); 
     } 

     Console.WriteLine("Press enter to continue..."); 
     Console.ReadLine(); 

     //using live stream 
     var result = JsonConvert.DeserializeObject<Responses>(results); 
     //local results (not using live stream) 
     //var result = JsonConvert.DeserializeObject<Responses>(localResults); 


     //want to calcualte the highest kay number for the loop 
     //http://stackoverflow.com/questions/2805703/good-way-to-get-the-key-of-the-highest-value-of-a-dictionary-in-c-sharp 
     //var max = result.Data[0].questions[0].Aggregate((l, r) => l.Key > r.Key ? l : r).Key; 


     foreach (var item in result.Data[0].SurveyQuestions) 
     { 
      string label = "QuestionID = " + item.QuestionID; 
      string val = "QuestionResponse = " + item.QuestionResponse; 
      Console.WriteLine(label); 
      Console.WriteLine(val); 
      Console.WriteLine(""); 


      //Question Option 
      var listOptions = result.Data[0].SurveyQuestionOptions; 
      var listLocalQuestionOptions = from o in listOptions 
              where o.QuestionID == item.QuestionID 
              select o; 
      foreach (var itemSub in listLocalQuestionOptions) 
      { 
       Console.WriteLine(" OPTIONAL"); 
       string labelSub1 = " OptionID = " + itemSub.OptionID; 
       string labelSub2 = " QuestionID = " + itemSub.QuestionID; 
       string valSub1 = " QuestionResponse = " + itemSub.QuestionResponse; 
       Console.WriteLine(labelSub1); 
       Console.WriteLine(labelSub2); 
       Console.WriteLine(valSub1); 
       Console.WriteLine(""); 
      } 


      //Question Multi 
      var listMulties = result.Data[0].SurveyQuestionMulties; 
      var listLocalQuestionMulties = from m in listMulties 
              where m.QuestionID == item.QuestionID 
              select m; 
      foreach (var itemSub in listLocalQuestionMulties) 
      { 
       Console.WriteLine("MULTIES"); 
       string labelSub1 = " OptionID = " + itemSub.OptionID; 
       string labelSub2 = " QuestionID = " + itemSub.QuestionID; 
       string valSub1 = " QuestionResponse = " + itemSub.QuestionResponse; 
       Console.WriteLine(labelSub1); 
       Console.WriteLine(labelSub2); 
       Console.WriteLine(valSub1); 
       Console.WriteLine(""); 
      } 


     } 

     //Console.WriteLine(""); 
     //Console.WriteLine(""); 
     //Console.WriteLine(""); 
     //Console.WriteLine(""); 

     //foreach (var item in result.Data[0].SurveyQuestionOptions) 
     //{ 
     // string label = "OptionID = " + item.OptionID; 
     // string label2 = "QuestionID = " + item.QuestionID; 
     // string val = "QuestionResponse = " + item.QuestionResponse; 
     // Console.WriteLine(label); 
     // Console.WriteLine(label2); 
     // Console.WriteLine(val); 
     // Console.WriteLine(""); 
     //} 

     //Console.WriteLine(""); 

     Console.WriteLine("Press enter to continue..."); 
     Console.ReadLine(); 

     Console.WriteLine(""); 
     Console.WriteLine(""); 
     Console.WriteLine("HIDDENS"); 
     Console.WriteLine(""); 

     foreach (var item in result.Data[0].SurveyQuestionHiddens) 
     { 
      string label = "QuestionID = " + item.QuestionID; 
      string val = "QuestionResponse = " + item.QuestionResponse; 
      Console.WriteLine(label); 
      Console.WriteLine(val); 
      Console.WriteLine(""); 
     } 



     Console.WriteLine("Press enter to continue..."); 
     Console.ReadLine(); 
     Console.WriteLine(""); 
     Console.WriteLine(""); 
     Console.WriteLine("MULTIES"); 
     Console.WriteLine(""); 

     foreach (var item in result.Data[0].SurveyQuestionMulties) 
     { 
      string label = "OptionID = " + item.OptionID; 
      string label2 = "QuestionID = " + item.QuestionID; 
      string val = "QuestionResponse = " + item.QuestionResponse; 
      Console.WriteLine(label); 
      Console.WriteLine(label2); 
      Console.WriteLine(val); 
      Console.WriteLine(""); 
     } 



     Console.WriteLine("Press enter to continue..."); 
     Console.ReadLine(); 
     Console.WriteLine(""); 
     Console.WriteLine(""); 
     Console.WriteLine("URL VALUES"); 
     Console.WriteLine(""); 

     foreach (var item in result.Data[0].SurveyUrls) 
     { 
      string label = "SurveyUrlID = " + item.SurveyUrlID; 
      string label2 = "Name = " + item.Name; 
      string val = "Value = " + item.Value; 
      Console.WriteLine(label); 
      Console.WriteLine(label2); 
      Console.WriteLine(val); 
      Console.WriteLine(""); 
     } 



     Console.WriteLine("Press enter to continue..."); 
     Console.ReadLine(); 
     Console.WriteLine(""); 
     Console.WriteLine(""); 
     Console.WriteLine("GEO VALUES"); 
     Console.WriteLine(""); 

     foreach (var item in result.Data[0].SurveyGeoDatas) 
     { 
      string label = "SurveyGeoDataID = " + item.SurveyGeoDataID; 
      string label2 = "Name = " + item.Name; 
      string val = "Value = " + item.Value; 
      Console.WriteLine(label); 
      Console.WriteLine(label2); 
      Console.WriteLine(val); 
      Console.WriteLine(""); 
     } 



     Console.WriteLine("Press enter to continue..."); 
     Console.ReadLine(); 
     Console.WriteLine(""); 
     Console.WriteLine(""); 
     Console.WriteLine("VARIABLES"); 
     Console.WriteLine(""); 

     foreach (var item in result.Data[0].SurveyVariables) 
     { 
      string label = "SurveyVariableID = " + item.SurveyVariableID; 
      string val = "Value = " + item.Value; 
      Console.WriteLine(label); 
      Console.WriteLine(val); 
      Console.WriteLine(""); 
     } 



     Console.WriteLine("Press enter to continue..."); 
     Console.ReadLine(); 
     Console.WriteLine(""); 
     Console.WriteLine(""); 
     Console.WriteLine("VARIABLES SHOWN"); 
     Console.WriteLine(""); 

     foreach (var item in result.Data[0].SurveyVariableShowns) 
     { 
      string label = "SurveyVariableShownID = " + item.SurveyVariableShownID; 
      string label2 = "Name = " + item.Name; 
      string val = "Value = " + item.Value; 
      Console.WriteLine(label); 
      Console.WriteLine(label2); 
      Console.WriteLine(val); 
      Console.WriteLine(""); 
     } 




     Console.WriteLine(""); 
     Console.WriteLine("Press enter to exit..."); 
     Console.ReadLine();

來源

2013-03-14 16:31:20 ADH

我已經把艾倫的代碼到類庫。我們正在內部使用這個工具，用於我工作的公司的調查報告工具。它在Github上的https://github.com/tntp/NSurveyGizmo。

來源

2015-08-11 15:09:56 bwolff

如何讀取Java中沒有名稱的元素的JSON響應（SurveyGizmo調查響應API）

回答

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