Cannot consume WCF Rest Services in WCF Client - wcf

Question

I have a Service and the releated interface under namespace called "WCFService":
[ServiceContract]
public interface IBook
{
[OperationContract]
[WebInvoke(Method="GET"
,ResponseFormat=WebMessageFormat.Json
,BodyStyle=WebMessageBodyStyle.Wrapped
,UriTemplate="/?bookID={bookID}")]
Book Get(int bookID);
}
//========================================================
public Book Get(int bookID)
{
return bookList.Where(p => p.BookID == bookID).FirstOrDefault();
}
And the Book DataModel is under another namespace called "WCFModel":
[DataContract]
public class Book
{
[DataMember]
public int BookID { get; set; }
[DataMember]
public string BookName { get; set; }
[DataMember]
public decimal BookPrice { get; set; }
[DataMember]
public string BookPublish { get; set; }
}
After set the config file, I got the service run ok.
Then I planned to consume it in client side. I added a windows form application to the project and added reference to the WCFModel book datamodel, I used below code to extract the data:
string serviceURL = "http://localhost:15020/BookService.svc/?bookID=" + txtBookID.Text.Trim();
var request = WebRequest.Create(serviceURL);
var response = request.GetResponse();
DataContractSerializer serializer = new DataContractSerializer(typeof(WCFModel.Book));
var bookObj = serializer.ReadObject(response.GetResponseStream());
But the result was, VS thrown me an exception at the ReadObject below:
Error when deserializing the WCFModel.Book type, Data at the root level is invalid.
stack trace below：
在 System.Xml.XmlExceptionHelper.ThrowXmlException(XmlDictionaryReader reader, String res, String arg1, String arg2, String arg3)
在 System.Xml.XmlUTF8TextReader.Read()
在 System.Xml.XmlBaseReader.IsStartElement()
在 System.Xml.XmlBaseReader.IsStartElement(XmlDictionaryString localName, XmlDictionaryString namespaceUri)
在 System.Runtime.Serialization.XmlReaderDelegator.IsStartElement(XmlDictionaryString localname, XmlDictionaryString ns)
在 System.Runtime.Serialization.XmlObjectSerializer.IsRootElement(XmlReaderDelegator reader, DataContract contract, XmlDictionaryString name, XmlDictionaryString ns)
在 System.Runtime.Serialization.DataContractSerializer.InternalIsStartObject(XmlReaderDelegator reader)
在 System.Runtime.Serialization.DataContractSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName, DataContractResolver dataContractResolver)
在 System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)
I don't know why, After searching a lot, I still can't get the point. Anyone can give me some reference? thx.

Answer 1

I hope this may work for you!
Try implementing this!
WebClient proxy = new WebClient();
string serviceURL =
string.Format("http://localhost:15020/BookService.svc/?bookID=" + txtBookID.Text.Trim().ToString());
byte[] data = proxy.DownloadData(serviceURL);
Stream stream = new MemoryStream(data);
DataContractJsonSerializer obj =
new DataContractJsonSerializer(typeof(Book));
Book book = obj.ReadObject(stream) as Book;
Console.WriteLine("Book ID : " + book.BookID);
Console.WriteLine("Book Name : " + book.BookName);
Console.WriteLine("Book ID : " + book.BookPrice);
Console.WriteLine("Book ID : " + book.BookPublish);
See this link
EDIT: Change BodyStyle=WebMessageBodyStyle.Wrapped to BodyStyle=WebMessageBodyStyle.Bare.