C# WP8上的HttpWebRequest
我一直在尝试让C# WP8上的HttpWebRequest,c#,.net,windows-phone-8,C#,.net,Windows Phone 8,我一直在尝试让HTTPRequest在我的C#项目中为一个get请求工作，但我不能完全让它工作。下面是我的代码： using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Net; using System.IO; using System.Windows; using System.Diagnos
HTTPRequestgetusing System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.IO;
using System.Windows;
using System.Diagnostics;
using System.Threading;
class MyClass
{
const string URL_PREFIX = "http://mycompany.com/";
private HttpWebRequest objRequest = null;
private static string myRequestData = string.Empty;
private string urlAddress;
public MyClass()
{
int member = 1;
int startLoc = 1;
int endLoc = 1;
string starttime = "2012-01-01 00:00:00";
string endtime = "2012-01-01 00:00:00";
int rt = 1;
string cmt = "Hello World";
this.urlAddress = URL_PREFIX + string.Format(
"createtrip.php?member={0}&startLoc={1}&endLoc={2}&starttime={3}&endtime={4}&rt={5}&cmt={6}"
, member, startLoc, endLoc, starttime, endtime, rt, cmt);
StringBuilder completeUrl = new StringBuilder(urlAddress);
objRequest = (HttpWebRequest)WebRequest.Create(urlAddress);
objRequest.ContentType = "application/x-www-form-urlencoded";
objRequest.BeginGetRequestStream(new AsyncCallback(httpComplete), objRequest);
}
private static void httpComplete(IAsyncResult asyncResult)
{
HttpWebRequest objHttpWebRequest = (HttpWebRequest)asyncResult.AsyncState;
// End the operation
Stream postStream = objHttpWebRequest.EndGetRequestStream(asyncResult);
// Convert the string into a byte array.
byte[] byteArray = Encoding.UTF8.GetBytes(myRequestData);
// Write to the request stream.
postStream.Write(byteArray, 0, myRequestData.Length);
postStream.Close();
// Start the asynchronous operation to get the response
objHttpWebRequest.BeginGetResponse(new AsyncCallback(GetResponseCallback), objHttpWebRequest);
}
private static void GetResponseCallback(IAsyncResult asyncResult)
{
HttpWebRequest objHttpWebRequest = (HttpWebRequest)asyncResult.AsyncState;
HttpWebResponse objHttpWebResponse = (HttpWebResponse)objHttpWebRequest.EndGetResponse(asyncResult);
Stream objStreamResponse = objHttpWebResponse .GetResponseStream();
StreamReader objStreamReader = new StreamReader(objStreamResponse );
string responseString = objStreamReader.ReadToEnd(); // Got response here
MessageBox.Show("RESPONSE :" + responseString);
// Close the stream object
objStreamResponse .Close();
objStreamReader.Close();
objHttpWebResponse.Close();
}
}
在mscorlib.ni.dll中发生类型为“System.Collections.Generic.KeyNotFoundException”的异常，在托管/本机边界之前未处理该异常
System.Windows.ni.dll中发生了类型为“System.Net.ProtocolViolationException”的第一次意外异常
由于对象的当前状态，操作无效。更改为使用“BeginGetResponse”，正如您在代码的第二部分中所做的那样。我建议您使用功能强大的库“Microsoft HTTP客户端库”，该库需要.NET 4并可与WP7、WP8、Silverlight 4-5、Windows应用商店应用程序、可移植类库一起使用 您可以简单地从NuGet添加它，并非常简单地使用它 下面是HTTP GET的一个示例
private async Task PerformGet()
{
HttpClient client = new HttpClient();
HttpResponseMessage response = await client.GetAsync(myUrlGet);
if (response.IsSuccessStatusCode)
{
// if the response content is a byte array
byte[] contentBytes = await response.Content.ReadAsByteArrayAsync();
// if the response content is a stream
Stream contentStream = await response.Content.ReadAsStreamAsync();
// if the response content is a string (JSON or XML)
string json = await response.Content.ReadAsStringAsync();
// your stuff..
}
}
我建议您使用功能强大的库“Microsoft HTTP客户端库”，该库需要.NET 4并可与WP7、WP8、Silverlight 4-5、Windows应用商店应用程序和可移植类库一起使用 您可以简单地从NuGet添加它，并非常简单地使用它 下面是HTTP GET的一个示例
private async Task PerformGet()
{
HttpClient client = new HttpClient();
HttpResponseMessage response = await client.GetAsync(myUrlGet);
if (response.IsSuccessStatusCode)
{
// if the response content is a byte array
byte[] contentBytes = await response.Content.ReadAsByteArrayAsync();
// if the response content is a stream
Stream contentStream = await response.Content.ReadAsStreamAsync();
// if the response content is a string (JSON or XML)
string json = await response.Content.ReadAsStringAsync();
// your stuff..
}
}
你能详细说明一下“不工作”吗？此外，您的URL是乱七八糟的，
之间没有斜杠。”http://mycompany.com“createtrip.php”之间没有斜杠。”http://mycompany.com“createtrip.php”