如何將JSON對象數據寫入csv文件？

-4

我想將JSON數據導出到CSV文件。我創建了一個函數WriteReportToCSV（）來完成這項工作。當我嘗試運行我的程序時，我的代碼沒有讀取該函數。我在代碼中丟失了什麼嗎？如何將JSON對象數據寫入csv文件？

TestApp.cs：

namespace TestApp 
{ 
    class TestApp 
    { 
     public List<report> Reports { get; set; } 
     public List<worklog> worklogs { get; set; } 
     public List<answer> answers { get; set; } 

     public void HarvestRaken() 
     { 
      var rc = GetReports(); 

      if (rc == null) return; 

      rc.WriteReportToCSV(@"C:\Projects\TestApp\Report_Data.csv"); 

     } 

     public string token = "1abcdef3-k89x-3w574-3589-2957c29ki7m1"; 

     public reportcontainer GetReports() 
     { 

      Console.WriteLine("Reading Reports"); 

      reportcontainer result = null; 

      try 
      { 
       string url = "https://app.ticketappapp.com/api/v2/reports/?startDate=2017-06-07&endDate=2017-07-07&maxResults=10000&filters=project.id:279658&filters=project.id:279654&filters=project.id:279652"; 

       WebRequest request = WebRequest.Create(url); 

       request.Method = "GET"; 
       request.Headers.Add("Authorization", "Bearer " + token); 

       using (WebResponse response = request.GetResponse()) 
       { 
        using (Stream responstream = response.GetResponseStream()) 

        { 
         string sr = new StreamReader(responstream).ReadToEnd(); 

         reportcontainer rc = JsonConvert.DeserializeObject<reportcontainer>(sr); 
        } 
       } 
      } 

      catch (Exception ex) 
      { 

      } 

      return result; 
     }

Project.cs：

namespace TestApp 
{ 

    public class reportcontainer 
    { 
     public List<report> reports { get; set; } 
     public string totalHits { get; set; } 

     public void WriteReportToCSV(string Filepath) 
     { 

      using (var sw = new StreamWriter(Filepath)) 
      { 

       foreach (report rep in this.reports) 

       { 
        sw.WriteLine("Reading Reports:"); 
        sw.WriteLine(" Reading:" + "," + rep.id + "," + rep.status + "," + rep.completed + "," + rep.date); 

       } 

       foreach (worklog wl in this.reports.SelectMany(r => r.worklogs)) 

       { 
        sw.WriteLine("Reading Worklogs:"); 
        sw.WriteLine(" Reading:" + "," + wl.id + "," + wl.subcontractor + "," + wl.hours + "," + wl.workerCount + "," + wl.workdesc); 

       } 

       foreach (answer ans in this.reports.SelectMany(r => r.answers)) 
       { 
        sw.WriteLine("Reading Survey:"); 
        sw.WriteLine(" Reading:" + "," + ans.id + "," + ans.question + "," + ans.questionid + "," + ans.FormattedAnswer + "," + ans.desc); 

       } 

      } 
     } 
    }

來源

2017-07-17 Rck7

你是什麼意思'當我嘗試運行我的程序時，我的代碼沒有讀取函數。 '？你的意思是你忘了叫'HarvestRaken'？或者是其他東西？ – mjwills

@mjwills。當我點擊運行時，它開始開始收穫，但隨後它返回（rc == null）並且不寫入writeReporttoCSV（）。我的問題是我無法將數據寫入CSV。不明白我在代碼中缺少的是什麼。 – Rck7

@ mjwills.I能夠反序列化對象（sr），沒有例外。你是什麼意思，你忘了分配給結果變量？ – Rck7

reportcontainer rc = JsonConvert.DeserializeObject<reportcontainer>(sr);

應改爲：

result = JsonConvert.DeserializeObject<reportcontainer>(sr);

因爲你從來就不是一個值賦給result，它是始終爲 null。

因此WriteReportToCSV永遠不會被調用。

來源

2017-07-17 13:57:39 mjwills

它像一個魅力！非常感謝。 – Rck7

如何將JSON對象數據寫入csv文件？

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