C#使用GET、POST请求获取结果，这里以一个简单的用户登陆为例。

1、 使用GET请求获取结果

1.1 创建LoginHandler.aspx处理页面

 

protected void Page_Load(object sender, EventArgs e)
{
    string result = "";
    string userName = Request.QueryString["UserName"];
    string password = Request.QueryString["Password"];

    if (userName == "admin" && password == "123")
    {
        result = "登陆成功";
    }
    else
    {
        result = "登陆失败";
    }
    Response.Write(result);
}

 

1.2 编写GET请求与获取结果方法

 

/// <summary>
/// GET请求与获取结果
/// </summary>
public static string HttpGet(string Url, string postDataStr)
{
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);
    request.Method = "GET";
    request.ContentType = "text/html;charset=UTF-8";

    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
    Stream myResponseStream = response.GetResponseStream();
    StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8);
    string retString = myStreamReader.ReadToEnd();
    myStreamReader.Close();
    myResponseStream.Close();

    return retString;
}

 

1.3 调用测试

 

    string res