我在休息服务中收到很多关于post和get方法的文章但我没有得到任何好的put / delete。我创建了一个休息服务并试图调用四个操作。获取和发布工作但不删除/删除。我会在这里提供我的代码;
在silverlight put和post方法中调用休息服务
const string uridel =
"http://localhost:50211/CustomerService.svc/deletecustomer/1";
const string uriput =
"http://localhost:50211/CustomerService.svc/modifycustomer/1";
client.DownloadStringCompleted += (s, ev) =>//delete method
{
XDocument xml = XDocument.Parse(ev.Result);
var Customer = from results in xml.Descendants
("CustomerResponse")
select new CustomerResponse
{
CustomerId = Int32.Parse(results.Descendants
("CustomerId").First().Value),
};
int id = Customer.Select(w => w.CustomerId).FirstOrDefault();
MessageBox.Show("result is :" + id);
};
client.DownloadStringAsync(new Uri(uridel), "DELETE");
CustomerResponse cusres = new CustomerResponse();//put method
cusres.CustomerName = textBox1.Text;
cusres.CustomerPh = textBox2.Text;
DataContractSerializer dataContractSerializer =
new DataContractSerializer(typeof(CustomerResponse));
MemoryStream memoryStream = new MemoryStream();
dataContractSerializer.WriteObject(memoryStream, cusres);
string xmlData = Encoding.UTF8.GetString(memoryStream.ToArray(), 0,
(int)memoryStream.Length);
client.UploadStringCompleted += (s, ev) =>
{
XDocument xml = XDocument.Parse(ev.Result);
var Customer = from results in xml.Descendants("CustomerResponse")
select new CustomerResponse
{
CustomerId = Int32.Parse(results.Descendants
("CustomerId").First().Value),
};
int id = Customer.Select(w => w.CustomerId).FirstOrDefault();
MessageBox.Show("result is :" + id);
textBox1.Text = "";
textBox2.Text = "";
};
client.Headers[HttpRequestHeader.ContentType] = "application/xml";
client.UploadStringAsync(new Uri(uriput), "PUT", xmlData);
在wcf服务中
[OperationContract]
[WebInvoke(Method = "DELETE",
RequestFormat = WebMessageFormat.Xml,
ResponseFormat = WebMessageFormat.Xml,
BodyStyle = WebMessageBodyStyle.Bare,
UriTemplate = "deletecustomer/{id}")]
CustomerResponse DeleteCustomer(string id);
[OperationContract]
[WebInvoke(Method = "PUT",
RequestFormat = WebMessageFormat.Xml,
ResponseFormat = WebMessageFormat.Xml,
BodyStyle = WebMessageBodyStyle.Bare,
UriTemplate = "modifycustomer/{id}")]
CustomerResponse ModifyCustomer(string id,CustomerResponse cusres);
对于删除,我得到一个异常,即找不到服务器,而对于put方法,我得到的错误就像指定的方法在这个请求中不支持。任何人都可以建议错误在哪里..或者建议可以使用put和delete方法在Silverlight中使用的好文章?
答案 0 :(得分:1)
第1步: 在Silverlight应用程序中,检查是否在App()构造函数的App.xaml.cs中添加了以下行。
HttpWebRequest.RegisterPrefix("http://", WebRequestCreator.ClientHttp);
HttpWebRequest.RegisterPrefix("https://", WebRequestCreator.ClientHttp);
第2步:
<?xml version="1.0" encoding="utf-8"?>
<access-policy>
<cross-domain-access>
<policy>
<allow-from http-request-headers="*" http-methods="*">
<domain uri="*"/>
</allow-from>
<grant-to>
<resource path="/" include-subpaths="true"/>
</grant-to>
</policy>
</cross-domain-access>
</access-policy>
将xml保存为服务主机项目下的“clientaccesspolicy.xml”。