處理Http headers,資料Null時不回傳空Tag,回傳HttpCode
Sample Code記錄:
[DataContract]
public class Person
{
//EmitDefaultValue = false will make data member won't be serialized if it's null.
[DataMember(EmitDefaultValue = false)]
public string ID { get; set; }
[DataMember(EmitDefaultValue = false)]
public string FirstName { get; set; }
[DataMember(EmitDefaultValue = false)]
public string LastName { get; set; }
[DataMember(EmitDefaultValue = false)]
public string City { get; set; }
}
public class Service1 : IService1
{
public string GetData(int pValue)
{
string tValue = string.Empty;
MessageHeader tHeader = MessageHeader.CreateHeader("ReturnCode", "ns", "200");
//建立一個回傳的Http Header
OperationContext.Current.OutgoingMessageHeaders.Add(tHeader);
WebOperationContext tContext = WebOperationContext.Current;
//建立回傳的HttpStatusCode
tContext.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.OK;
//檢查收到的呼叫是否含有IPHeader這個Http Header
int tNum = OperationContext.Current.IncomingMessageHeaders.FindHeader("IPHeader", "ns");
if (tNum >= 0)
{
tValue = OperationContext.Current.IncomingMessageHeaders.GetHeader<string>(tNum);
}
return string.Format("You entered: {0} and IPHeader is {1}", pValue, tValue);
}
}
完整參考來源:
Can't get client IP address on Vista and Windows 2008 server
Adding Header to .Net 3.5 WCF Client
how to not return null when a Data member field is not set in the data contract
How can I return a custom HTTP status code from a WCF REST method?
