我正在尝试向我写的简单WCF服务发送POST请求,但我一直收到400错误请求。我正在尝试将JSON数据发送到服务。谁能发现我做错了什么? : - )
这是我的服务界面:
public interface Itestservice
{
[OperationContract]
[WebInvoke(
Method = "POST",
UriTemplate = "/create",
RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json)]
String Create(TestData testData);
}
实施:
public class testservice: Itestservice
{
public String Create(TestData testData)
{
return "Hello, your test data is " + testData.SomeData;
}
}
DataContract:
[DataContract]
public class TestData
{
[DataMember]
public String SomeData { get; set; }
}
最后是我的客户代码:
private static void TestCreatePost()
{
Console.WriteLine("testservice.svc/create POST:");
Console.WriteLine("-----------------------");
Uri address = new Uri("http://localhost:" + PORT + "/testweb/testservice.svc/create");
// Create the web request
HttpWebRequest request = WebRequest.Create(address) as HttpWebRequest;
// Set type to POST
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
//request.ContentType = "text/x-json";
// Create the data we want to send
string data = "{\"SomeData\":\"someTestData\"}";
// Create a byte array of the data we want to send
byte[] byteData = UTF8Encoding.UTF8.GetBytes(data);
// Set the content length in the request headers
request.ContentLength = byteData.Length;
// Write data
using (Stream postStream = request.GetRequestStream())
{
postStream.Write(byteData, 0, byteData.Length);
}
// Get response
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
// Get the response stream
StreamReader reader = new StreamReader(response.GetResponseStream());
// Console application output
Console.WriteLine(reader.ReadToEnd());
}
Console.WriteLine();
Console.WriteLine();
}
有谁能想到我可能做错了什么?正如你在C#客户端中看到的那样,我已经尝试了applicationType / x-www-form-urlencoded和text / x-json for ContentType,认为它可能与它有关,但它似乎没有。我已经尝试了这个相同服务的GET版本,它工作正常,并返回一个JSON版本的TestData没有问题。但是对于POST,好吧,我现在非常坚持这个: - (
答案 0 :(得分:8)
您是否尝试过“application / json”而不是“text / x-json”。根据{{3}} Stack Overflow问题应用程序/ json是唯一有效的json媒体类型。
答案 1 :(得分:4)
这里唯一的问题是ContentType。
尝试(推荐)
request.ContentType = "application/json; charset=utf-8";
或(这也会起作用)
request.ContentType = "text/json; charset=utf-8";
以上两点都解决了这个问题。但是,建议使用第一个,有关JSON-RPC 1.1规范的详细信息,请查看http://json-rpc.org
答案 2 :(得分:0)
尝试:
[OperationContract]
[WebInvoke(
Method = "POST",
UriTemplate = "/create",
RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json,
/* non-wrapped */ BodyStyle = WebMessageBodyStyle.Bare )]
String Create(TestData testData);