winform访问url传参有返回值

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("http://。。。。");
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            string ret = string.Empty;
            Stream s;
            string StrDate = "";
            string strValue = "";
 
            if (response.StatusCode == HttpStatusCode.OK)
            {
                s = response.GetResponseStream();
                ////在这儿处理返回的文本就OK了,如：
 
                StreamReader Reader = new StreamReader(s, Encoding.UTF8);
                while ((StrDate = Reader.ReadLine()) != null)
                {
                    strValue += StrDate + "\r\n";
                }  
            }
Console.WriteLine(strValue);
Console.ReadKey();

}
/*
Winform传递参数至Url并获得返回值

在winform里面调用URL并传递参数主要使用HttpWebRequest对象，分为两种形式post和get，个人感觉就是模拟了浏览器，

1.post方法：

/// <summary>
/// 使用post方法，调用短信接口
/// </summary>
/// <param name="PhoneNumber"></param>
/// <param name="SmsContent"></param>
/// <param name="PhoneNumberType"></param>
/// <param name="SmsUser"></param>
private void CallMsgCenterToSendMsgPost(string PhoneNumber, string SmsContent, string PhoneNumberType, string SmsUser)
{
string formUrl = ConfigurationSettings.AppSettings["formUrl"].ToString().Trim();//url地址
string formData = "PhoneNumber=" + PhoneNumber + "&SmsContent=" +SmsContent + "&PhoneNumberType=" + PhoneNumberType + "&SmsUser=" + SmsUser + "";
CookieContainer cookieContainer = new CookieContainer();
// 将提交的字符串数据转换成字节数组
byte[] postData = Encoding.UTF8.GetBytes(formData);

// 设置提交的相关参数
HttpWebRequest request = WebRequest.Create(formUrl) as HttpWebRequest;
Encoding myEncoding = Encoding.GetEncoding("gb2312");
request.Method = "POST";
request.KeepAlive = false;
request.AllowAutoRedirect = true;
request.ContentType = "application/x-www-form-urlencoded";
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)";
request.CookieContainer = cookieContainer;
request.ContentLength = postData.Length;

// 提交请求数据
System.IO.Stream outputStream = request.GetRequestStream();
outputStream.Write(postData, 0, postData.Length);
outputStream.Close();

HttpWebResponse response;
Stream responseStream;
StreamReader reader;
string srcString;
response = request.GetResponse() as HttpWebResponse;
responseStream = response.GetResponseStream();
reader = new System.IO.StreamReader(responseStream, Encoding.UTF8);
srcString = reader.ReadToEnd();
reader.Close();
}

2，get方法

/// <summary>
/// 使用get方法
/// </summary>
/// <param name="PhoneNumber"></param>
/// <param name="SmsContent"></param>
/// <param name="PhoneNumberType"></param>
/// <param name="SmsUser"></param>
private void CallMsgCenterToSendMsgGet(string PhoneNumber, string SmsContent, string PhoneNumberType, string SmsUser)
{
string formUrl = ConfigurationSettings.AppSettings["formUrl"].ToString().Trim();
string formData = "PhoneNumber=" + HttpUtility.UrlEncode(PhoneNumber) + "&SmsContent=" + HttpUtility.UrlEncode(SmsContent) + "&PhoneNumberType=" + HttpUtility.UrlEncode(PhoneNumberType) + "&SmsUser=" + HttpUtility.UrlEncode(SmsUser) + "";
CookieContainer cookieContainer = new CookieContainer();

formUrl = formUrl + "?" + formData;
// 设置提交的相关参数
HttpWebRequest request = WebRequest.Create(formUrl) as HttpWebRequest;

request.Method = "GET";
request.KeepAlive = false;
request.AllowAutoRedirect = true;
request.ContentType = "application/x-www-form-urlencoded";
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)";
request.CookieContainer = cookieContainer;

HttpWebResponse SendSMSResponse = (HttpWebResponse)request.GetResponse();

StreamReader SendSMSResponseStream = new StreamReader(SendSMSResponse.GetResponseStream());

string strRespone = SendSMSResponseStream.ReadToEnd();

SendSMSResponse.Close();
SendSMSResponseStream.Close();
}

3，调用起来都比较简单的，主要是在传递参数的过程中注意中文的处理，否则会变为乱码，获取返回值当然就使用HttpWebResponse对象了
*/
}
}