[C#]Winform后台提交数据且获取远程接口返回的XML数据,转换成DataSet

#region 接口返回的Xml转换成DataSet
/// <summary>
/// 返回的Xml转换成DataSet
/// </summary>
/// <param name="text">Xml字符</param>
/// <returns></returns>
private DataSet GetDataSet(string text)
{
try
{
XmlTextReader reader = new XmlTextReader(new StringReader(text));
reader.WhitespaceHandling = WhitespaceHandling.None;
DataSet ds = new DataSet();
ds.ReadXml(reader);
reader.Close();
ds.Dispose();
return ds;
}
catch
{
return null;
}
}
#endregion

#region 后台提交数据且获取接口返回的数据
/// <summary>
/// 后台提交数据且获取接口返回的数据
/// </summary>
/// <param name="relativePath">地址</param>
/// <returns></returns>
public static string GetRequestString(string relativePath)
{
string requestUrl = relativePath;
try
{
// 创建一个HTTP请求
HttpWebRequest request = (System.Net.HttpWebRequest)WebRequest.Create(requestUrl);
request.Method = "GET";

StreamReader jsonStream = new StreamReader(request.GetResponse().GetResponseStream());
string jsonObject = jsonStream.ReadToEnd();

return jsonObject;
}
catch
{
return string.Empty;
}
}
#endregion

#region 提交Json数据且获取接口返回的数据
/// <summary>
/// 提交Json数据且获取接口返回的数据
/// </summary>
/// <param name="url">网址</param>
/// <param name="method">Get/Post</param>
/// <param name="postDataStr">提交数据{"name":"zhangsan","pwd":"123456"}</param>
/// <returns></returns>
private string HttpPost(string url, string method, string postDataStr)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = method;

if (!string.IsNullOrWhiteSpace(postDataStr))
{
request.ContentType = "application/json";
byte[] postData = Encoding.UTF8.GetBytes(postDataStr);
request.ContentLength = postData.Length;
System.IO.Stream outputStream = request.GetRequestStream();
outputStream.Write(postData, 0, postData.Length);
outputStream.Close();
}

HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream myResponseStream = response.GetResponseStream();
StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
string retString = myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close();
return retString;
}
#endregion