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
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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
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/// <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
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static void Main(string[] args) { string url = "http://www.mystudy.cn/LoginHandler.aspx"; string data = "UserName=admin&Password=123"; string result = HttpGet(url, data); Console.WriteLine(result); Console.ReadLine(); } |
2、 使用POST请求获取结果
2.1 创建LoginHandler.aspx处理页面
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protected void Page_Load(object sender, EventArgs e) { string result = ""; string userName = Request.Form["UserName"]; string password = Request.Form["Password"]; if (userName == "admin" && password == "123") { result = "登陆成功"; } else { result = "登陆失败"; } Response.Write(result); } |
2.2 编写POST请求与获取结果方法
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/// <summary> /// POST请求与获取结果 /// </summary> public static string HttpPost(string Url, string postDataStr) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url); request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded"; request.ContentLength = postDataStr.Length; StreamWriter writer = new StreamWriter(request.GetRequestStream(),Encoding.ASCII); writer.Write(postDataStr); writer.Flush(); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); string encoding = response.ContentEncoding; if (encoding == null || encoding.Length < 1) { encoding = "UTF-8"; //默认编码 } StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding(encoding)); string retString = reader.ReadToEnd(); return retString; } |
2.3 调用测试
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static void Main(string[] args) { string url = "http://www.mystudy.cn/LoginHandler.aspx"; string data = "UserName=admin&Password=123"; string result = HttpPost(url, data); Console.WriteLine(result); Console.ReadLine(); } |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
