尝试在mvc4 c#中使用netwonsoft访问外部JSON文件

Question

我正在尝试读取一个外部json以在屏幕上显示数据。我在这儿干什么？

public void QuarterlyReport(object sender, EventArgs e)
    {
        JObject qData1 = JObject.Parse(System.IO.File.ReadAllText(@"~/json/quarterlyData.json"));
        // read JSON directly from a file
        using (StreamReader file = System.IO.File.OpenText(@"~/json/quarterlyData.json"))
        using (JsonTextReader reader = new JsonTextReader(file))
    {
        JObject Qdata2 = (JObject) JToken.ReadFrom(reader);
    }
        string Qdata = Newtonsoft.Json.JsonConvert.SerializeObject(qData1);
    }
    public async Task<FileStreamResult> Index()
    {
        var _reportingService = new ReportingService("https://mysite.jsreportonline.net", "[e-mail]", "password");
        var report = await _reportingService.RenderAsync("VyxOYwH7Ze", new { Qdata });
        //add the stream to be used by browser
        MemoryStream ms = new MemoryStream();
        //copy whatever JS is sending to us
        report.Content.CopyTo(ms);
        //start at content point
        ms.Position = 0;
        //send this to browser
        return File(ms, report.ContentType.MediaType);
    }

我似乎无法将变量Qdata带入其中。我在方法上做错了什么？

Answer 1

声明Qdata的行：

string Qdata = Newtonsoft.Json.JsonConvert.SerializeObject(qData1);

与此行不在同一范围内：

var report = await _reportingService.RenderAsync("VyxOYwH7Ze", new { Qdata });

Answer 2

是的，问题是

JObject qData1 = JObject.Parse(System.IO.File.ReadAllText(@"~/json/quarterlyData.json"));

和

string Qdata = Newtonsoft.Json.JsonConvert.SerializeObject(qData1);

需要与在同一范围内

var report = await _reportingService.RenderAsync("VyxOYwH7Ze", new { Qdata });