通过post发送的wcf服务消费表单数据

Question

我读了一些关于这个的文章,我发现要获得wcf从我们添加的帖子请求中获取数据

[ServiceContract]
public interface IService1 {
  [OperationContract]
  [WebInvoke(
      Method = "POST",
      BodyStyle = WebMessageBodyStyle.Bare,
      UriTemplate = "/GetData")]
  void GetData(Stream data);
}

并在实施中

public string GetData( Stream input)
{
    long incomingLength = WebOperationContext.Current.IncomingRequest.ContentLength;
    string[] result = new string[incomingLength];
    int cnter = 0;
    int arrayVal = -1;
    do
    {
        if (arrayVal != -1) result[cnter++] = Convert.ToChar(arrayVal).ToString();
        arrayVal = input.ReadByte();
    } while (arrayVal != -1);

    return incomingLength.ToString();
}

我的问题是我应该怎样做,在表单请求中提交操作会发送到我的服务并消费？

在Stream参数中,我是否可以通过Request ["FirstName"]从表单中获取信息？

Answer 1

您的代码未正确解码请求正文 - 您正在创建一个string值数组,每个值都包含一个字符.获取请求主体后,您需要解析查询字符串(使用这HttpUtility是一种简单的方法).下面的代码显示了如何正确获取正文和其中一个字段.

public class StackOverflow_7228102
{
    [ServiceContract]
    public interface ITest
    {
        [OperationContract]
        [WebInvoke(
            Method = "POST",
            BodyStyle = WebMessageBodyStyle.Bare,
            UriTemplate = "/GetData")]
        string GetData(Stream data);
    }
    public class Service : ITest
    {
        public string GetData(Stream input)
        {
            string body = new StreamReader(input).ReadToEnd();
            NameValueCollection nvc = HttpUtility.ParseQueryString(body);
            return nvc["FirstName"];
        }
    }
    public static void Test()
    {
        string baseAddress = "http://" + Environment.MachineName + ":8000/Service";
        WebServiceHost host = new WebServiceHost(typeof(Service), new Uri(baseAddress));
        host.Open();
        Console.WriteLine("Host opened");

        WebClient c = new WebClient();
        c.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
        Console.WriteLine(c.UploadString(baseAddress + "/GetData", "FirstName=John&LastName=Doe&Age=33"));

        Console.Write("Press ENTER to close the host");
        Console.ReadLine();
        host.Close();
    }
}