Question

我正在尝试将一个长字符串（包含XML）发布到我的Web API控制器，但我失败了。

如果TextAsXml很短，以下情况有效，但当TextAsXml很长时，它会失败“无效的URI：Uri字符串太长。”，这是可以理解的。

// Client code
using (var client = new HttpClient())
{
  var requestUri = "http://localhost:49528/api/some";
  var content = new FormUrlEncodedContent(new[] 
  {
    new KeyValuePair<string, string>("Author", "John Doe"),
    new KeyValuePair<string, string>("TextAsXml", "<?xml version=\"1.0\" encoding=\"UTF-8\"?><note><to>Tove</to><from>Jani</from><heading>Reminder</heading><body>Don't forget me this weekend!</body></note>")
  });

  var response = client.PostAsync(requestUri, content).Result;
  response.EnsureSuccessStatusCode();
}

// Controller code
public HttpResponseMessage Post(SomeModel someModel)
{
  // ...
  return Request.CreateResponse(HttpStatusCode.OK);
}

public class SomeModel
{
  public string Author { get; set; }
  public string TextAsXml { get; set; }
}

当TextAsXml很长时，如何使上述代码生效？我尝试使用StringContent和MultipartContent，但无法使其工作。

// This results in 500 Internal server error.
using (var client = new HttpClient())
{
  var requestUri = "http://localhost:49528/api/some";
  var textAsXml = File.ReadAllText("Note.xml");
  var content = new MultipartFormDataContent();
  content.Add(new StringContent("John Doe"), "Author");
  content.Add(new StringContent(textAsXml), "TextAsXml");

  var response = client.PostAsync(requestUri, content).Result;
  response.EnsureSuccessStatusCode();
}

Answer 1

将XML作为内容发送而不使用Uri编码。

如何将包含XML的长字符串发布到Web API

1 个答案: