由于Web API中的特殊字符,未设置发布值

Question

我正在尝试为我的网络API服务发帖.重点是发送消息时

{ message: "it is done" }

工作正常.但是当我在我的消息中使用像çıöpş这样的特殊字符时,它无法转换我的json以使post对象保持为null.我能做什么？这既是当前的文化问题,也可能是其他问题.我试图将我的post参数发送为带有编码HttpUtility类的HtmlEncoded样式,但它也不起作用.

public class Animal{

  public string Message {get;set;}
}

Web API方法

public void DoSomething(Animal a){

}

客户

Animal a = new Animal();
a.Message = "öç?istltl";
string postDataString = JsonConvert.SerializeObject(a);        
string URL = "http://localhost/Values/DoSomething";
WebClient client = new WebClient();

client.UploadStringCompleted += client_UploadStringCompleted;
client.Headers["Content-Type"] = "application/json;charset=utf-8";
client.UploadStringAsync(new Uri(URL), "POST",postDataString);

最好的祝福,

凯末尔

Answer 1

一种可能性是使用UploadDataAsync方法,该方法允许您在编码数据时指定UTF-8,因为UploadStringAsync您使用的方法基本上用于Encoding.Default在将数据写入套接字时对数据进行编码.因此,如果您的系统配置为使用除UTF-8之外的其他编码,则会因为UploadStringAsync使用系统编码而遇到麻烦,而在您指定的内容类型标头charset=utf-8中可能存在冲突.

使用该UploadDataAsync方法,您可以在意图中更明确:

Animal a = new Animal();
a.Message = "öç?istltl";
string postDataString = JsonConvert.SerializeObject(a);        
string URL = "http://localhost/Values/DoSomething";
string postDataString = JsonConvert.SerializeObject(a);
using (WebClient client = new WebClient())
{
    client.UploadDataCompleted += client_UploadDataCompleted;
    client.Headers["Content-Type"] = "application/json; charset=utf-8";
    client.UploadDataAsync(new Uri(URI), "POST", Encoding.UTF8.GetBytes(postDataString));
}

另一种可能性是指定客户端的编码并使用UploadStringAsync:

Animal a = new Animal();
a.Message = "öç?istltl";
string postDataString = JsonConvert.SerializeObject(a);        
string URL = "http://localhost/Values/DoSomething";
string postDataString = JsonConvert.SerializeObject(a);
using (WebClient client = new WebClient())
{
    client.Encoding = Encoding.UTF8;
    client.UploadStringCompleted += client_UploadStringCompleted;
    client.Headers["Content-Type"] = "application/json; charset=utf-8";
    client.UploadStringAsync(new Uri(URI), "POST", postDataString);
}

或者,如果您Microsoft.AspNet.WebApi.Client在客户端上安装NuGet包,您可以直接使用新HttpClient类(块上的新孩子)来使用WebAPI,而不是WebClient:

Animal a = new Animal();
a.Message = "öç?istltl";
var URI = "http://localhost/Values/DoSomething";
using (var client = new HttpClient())
{
    client
        .PostAsync<Animal>(URI, a, new JsonMediaTypeFormatter())
        .ContinueWith(x => x.Result.Content.ReadAsStringAsync().ContinueWith(y =>
        {
            Console.WriteLine(y.Result);
        }))
        .Wait();
}