[英]HttpWebRequest from a local WCF service
我正在使用简单的本地WCF服务对Xamarin Android应用进行一些测试,以证明我的连接代码有效。
服务:[OperationContract]字符串Ping(); …公共字符串Ping(){返回“ Pong”; }
Xamarin App中的测试代码:
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);
}
}
远程服务器返回错误:(400)错误的请求。
编辑:
使用ServiceReference时,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;
}
稍有不同的代码仍然不起作用: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();
}
}
}
答案植根于System.ServiceModel.Activation.WebServiceHostFactory
由于某种原因,在使用HttpWebRequest的研究过程中,我的任何资料都没有提到这一点。
在查看Android WCF的使用时,偶然发现了该参考。 https://minafayek.wordpress.com/2013/04/02/using-iis-published-restful-wcf-service-from-android-over-wifi/
我的测试程序正常运行,因此我应该能够继续前进。
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