C# Post数据
2021/8/9 1
/// <summary>
/// http Post请求
/// </summary>
/// <param name="parameterData">参数</param>
/// <param name="serviceUrl">访问地址</param>
/// <param name="ContentType">默认 application/json , application/x-www-form-urlencoded,multipart/form-data,raw,binary </param>
/// <param name="Accept">默认application/json</param>
/// <returns></returns>
public string Post(string parameterData, string serviceUrl, string ContentType = "application/json", string Accept = "application/json")
{
//先根据用户请求的uri构造请求地址
//string serviceUrl = string.Format("{0}/{1}", this.BaseUri, uri);
//创建Web访问对象
HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(serviceUrl);
//把用户传过来的数据转成“UTF-8”的字节流
byte[] buf = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(parameterData);
myRequest.Method = "POST";
//myRequest.Accept = "application/json";
//myRequest.ContentType = "application/json"; // //Content-Type: application/x-www-form-urlencoded
myRequest.AutomaticDecompression = DecompressionMethods.GZip;
myRequest.Accept = Accept;
//myRequest.ContentType = ContentType;
myRequest.ContentType = "application/json";
myRequest.Accept = "application/json"; ;
myRequest.KeepAlive = true;
myRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)";
myRequest.ContentLength = buf.Length;
myRequest.MaximumAutomaticRedirections = 1;
myRequest.AllowAutoRedirect = true;
//myRequest.Headers.Add("content-type", "application/json");
//myRequest.Headers.Add("accept-encoding", "gzip");
//myRequest.Headers.Add("accept-charset", "utf-8");
//发送请求
Stream stream = myRequest.GetRequestStream();
stream.Write(buf, 0, buf.Length);
stream.Close();
//通过Web访问对象获取响应内容
HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
//通过响应内容流创建StreamReader对象，因为StreamReader更高级更快
StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
//string returnXml = HttpUtility.UrlDecode(reader.ReadToEnd());//如果有编码问题就用这个方法
string returnData = reader.ReadToEnd();//利用StreamReader就可以从响应内容从头读到尾
reader.Close();
myResponse.Close();
return returnData;
}