[英]HttpWebRequest from a local WCF service
我正在使用簡單的本地WCF服務對Xamarin Android應用進行一些測試,以證明我的連接代碼有效。
服務:[OperationContract]字符串Ping(); …公共字符串Ping(){返回“ Pong”; }
Xamarin App中的測試代碼:
var request = HttpWebRequest.Create(string.Format(@"http://192.168.1.175/_Services/TestService1.svc/Ping"));
request.Credentials = CredentialCache.DefaultCredentials;
request.ContentType = "application/x-www-form-urlencoded;charset=UTF-8";
request.ContentLength = 0; //pass.Length;
request.Method = "POST";
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse) //Errors out here
{
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
var content = reader.ReadToEnd();
Console.Out.WriteLine("Response Body: \r\n {0}", content);
}
}
遠程服務器返回錯誤:(400)錯誤的請求。
編輯:
使用ServiceReference時,以下工作:
private void button3_Click(object sender,EventArgs e){ServiceReference1.TestService1Client client = new ServiceReference1.TestService1Client();
string returnString;
returnString = client.Ping();
label1.Text = returnString;
}
稍有不同的代碼仍然不起作用:private void button4_Click(object sender,EventArgs e){// string serviceUrl =“ http://192.168.1.175/_Services/TestService1.svc ”; 字符串serviceUrl =“ http://localhost/_Services/TestService1.svc ”;
HttpWebRequest httpRequest = (HttpWebRequest)WebRequest.Create(new Uri(serviceUrl + "/Ping"));
httpRequest.Accept = "text/xml";
httpRequest.ContentType = "text/xml";
httpRequest.Method = "POST";
httpRequest.ContentLength = 0;
httpRequest.KeepAlive = false;
using (HttpWebResponse httpResponse = (HttpWebResponse)httpRequest.GetResponse()) //400 Bad Request
{
using (Stream stream = httpResponse.GetResponseStream())
{
label1.Text = (new StreamReader(stream)).ReadToEnd();
}
}
}
答案植根於System.ServiceModel.Activation.WebServiceHostFactory
由於某種原因,在使用HttpWebRequest的研究過程中,我的任何資料都沒有提到這一點。
在查看Android WCF的使用時,偶然發現了該參考。 https://minafayek.wordpress.com/2013/04/02/using-iis-published-restful-wcf-service-from-android-over-wifi/
我的測試程序正常運行,因此我應該能夠繼續前進。
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