Question

我能够从网址中检索一个json对象。我在检索充满json对象的页面时需要帮助。我发现这个网站https://jsoneditoronline.org/展示了我想返回的页面的json体系结构：

这是我的代码：

namespace iexName.Controllers
{
[Route("api/IexName")]
[ApiController]
public class IexNameController : ControllerBase
{
    private IHttpClientFactory _httpClientFactory;

    public IexNameController(IHttpClientFactory httpClientFactory)
    {
        _httpClientFactory = httpClientFactory;
    }
    [HttpGet]
    public IEnumerable<Models.IexTradingStock> GetQuote()
    {
        string responseString = string.Empty;
        var Client = _httpClientFactory.CreateClient();
        try
        {
      responseString =   
  Client.GetStringAsync($"https://api.iextrading.com/1.0/stock/aapl/chart/1y").Result;
        }
        catch (HttpRequestException hre)
        {
            Console.WriteLine(hre.Message);
            //TODO do something
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
            //TODO do something
        }
        //quit if get content fail
        if (responseString == string.Empty) return null;

        try
        {
            var stock = JsonConvert.DeserializeObject<IexTradingStock> 
(responseString);
            return stock;

        }

错误在于“退货；”。我意识到我不知道如何返回所有json对象。

Answer 1

不久之后，我将其键入stackflow后我意识到该怎么做。这行得通。

namespace iexName.Controllers
{
[Route("api/IexName")]
[ApiController]
public class IexNameController : ControllerBase
{
    private IHttpClientFactory _httpClientFactory;

    public IexNameController(IHttpClientFactory httpClientFactory)
    {
        _httpClientFactory = httpClientFactory;
    }
    [HttpGet]
    public IEnumerable<Models.IexTradingStock> GetQuote()
    {
        string responseString = string.Empty;
        var Client = _httpClientFactory.CreateClient();
        try
        {
            responseString = 
Client.GetStringAsync($"https://api.iextrading.com/1.0/stock/aapl/chart/1y").Result;
        }
        catch (HttpRequestException hre)
        {
            Console.WriteLine(hre.Message);
            //TODO do something
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
            //TODO do something
        }
        //quit if get content fail
        if (responseString == string.Empty) return null;

        try
        {` List<IexTradingStock> stock = 
   JsonConvert.DeserializeObject<List<IexTradingStock>>(responseString);
            return stock;

        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
            //TODO do something
            return null;
        }
    }
  }
}`

使用ASP Net Core 2.1返回所有json对象

1 个答案: