后台post get请求

最新推荐文章于 2021-11-12 14:54:46 发布

转载最新推荐文章于 2021-11-12 14:54:46 发布 · 224 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/-maomao/p/5219522.html

本文详细介绍如何使用C#执行HTTP POST和GET请求，包括设置请求头、构造请求参数、获取响应等关键步骤，为网络编程提供实用指导。

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/// <summary>
/// 执行HTTP POST请求。
/// </summary>
/// <param name="url">请求地址</param>
/// <param name="parameters">请求参数</param>
/// <returns>HTTP响应</returns>
public static string DoPost(string url, IDictionary<string, string> parameters)
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "POST";
req.KeepAlive = true;
req.UserAgent = "59MiaoApp";
req.ContentType = "application/x-www-form-urlencoded;charset=utf-8";

byte[] postData = Encoding.UTF8.GetBytes(BuildPostData(parameters));
Stream reqStream = req.GetRequestStream();
reqStream.Write(postData, 0, postData.Length);
reqStream.Close();

HttpWebResponse rsp = (HttpWebResponse)req.GetResponse();
Encoding encoding = Encoding.GetEncoding(rsp.CharacterSet);
return GetResponseAsString(rsp, encoding);
}

/// <summary>
/// 执行HTTP GET请求。
/// </summary>
/// <param name="url">请求地址</param>
/// <param name="parameters">请求参数</param>
/// <returns>HTTP响应</returns>
public static string DoGet(string url, IDictionary<string, string> parameters)
{
if (parameters != null && parameters.Count > 0)
{
if (url.Contains("?"))
{
url = url + "&" + BuildPostData(parameters);
}
else
{
url = url + "?" + BuildPostData(parameters);
}
}

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "GET";
req.KeepAlive = true;
req.UserAgent = "Top4Net";
req.ContentType = "application/x-www-form-urlencoded;charset=utf-8";

HttpWebResponse rsp = (HttpWebResponse)req.GetResponse();
Encoding encoding = Encoding.GetEncoding(rsp.CharacterSet);
return GetResponseAsString(rsp, encoding);
}

转载于:https://www.cnblogs.com/-maomao/p/5219522.html