发布xml数据时,WCF Restful服务收到错误400(错误请求)

时间:2010-06-16 00:02:07

标签: xml wcf rest post xmlhttprequest

我正在尝试自我托管WCF服务并通过javascript调用服务。它通过Json而不是xml(400错误请求)传递请求数据时有效。请帮忙。

合同:

public interface iSelfHostServices
{

    [OperationContract]
    [WebInvoke(Method = "POST", UriTemplate = INFOMATO.RestTemplate.hello_post2,RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml, BodyStyle = WebMessageBodyStyle.Wrapped)]
    Stream hello_post2(string helloString);

}

服务器端代码:

public Stream hello_post2(string helloString)
{
    if (helloString == null)
    {
        WebOperationContext.Current.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.BadRequest;
        return null;
    }
    WebOperationContext.Current.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.OK;
    return new MemoryStream(Encoding.UTF8.GetBytes(helloString));

}

JavaScript的:

function testSelfHost_WCFService_post_Parameter() {

   var xmlString = "<helloString>'hello via Post'</helloString>";
   Ajax_sendData("hello/post2", xmlString);
}

function Ajax_sendData(url, data) {
   var request = false;
   request = getHTTPObject();
   if (request) {
       request.onreadystatechange = function() {
       parseResponse(request);
       };

       request.open("post", url, true);
       request.setRequestHeader("Content-Type", "text/xml; charset=utf-8"); charset=utf-8"); 
       request.send(data);
       return true;
   }
}

function getHTTPObject() {
   var xhr = false;
   if (window.XMLHttpRequest) {
      xhr = new XMLHttpRequest();
      } else if (window.ActiveXObject) {...}
}

2 个答案:

答案 0 :(得分:1)

这是因为WCF期望您传递的字符串使用Microsoft序列化命名空间进行序列化。如果你发送,

<string xmlns='http://schemas.microsoft.com/2003/10/Serialization/'>hello via Post</string>

那么它可能会正确地反序列化。

答案 1 :(得分:0)

您需要在WebInvoke属性中将正文样式设置为Bare,如下面的代码段所示,同时发送您在上面发送的XML标记。

[OperationContract]
[WebInvoke(Method = "POST", UriTemplate = INFOMATO.RestTemplate.hello_post2,RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml, BodyStyle = WebMessageBodyStyle.Bare)]
Stream hello_post2(string helloString);