C# 调用rest接口 cookie的保持
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之前调用一个系统的rest接口,该接口的调用方式是先登录获取cookie,然后将cookie作为后续请求的凭证。无奈只有java和php的样例代码。在网上找了很多解决方案,都没有实际解决问题。最后还是皇天不负有心人,找到了方法并测试有效,特地留存以备以后使用。
该方法主要是使用CookieContainer来解决的。感谢该作者的文章解决了我的问题。
#region 同步通过POST方式发送数据
/// <summary>
/// 通过POST方式发送数据
/// </summary>
/// <param name="Url">url</param>
/// <param name="postDataStr">Post数据</param>
/// <param name="cookie">Cookie容器</param>
/// <returns></returns>
public string SendDataByPost(string Url,string postDataStr,ref CookieContainer cookie)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
if (cookie.Count == 0)
{
request.CookieContainer = new CookieContainer();
cookie = request.CookieContainer;
}
else
{
request.CookieContainer = cookie;
}
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postDataStr.Length;
Stream myRequestStream = request.GetRequestStream();
StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));
myStreamWriter.Write(postDataStr);
myStreamWriter.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
#region 同步通过GET方式发送数据
/// <summary>
/// 通过GET方式发送数据
/// </summary>
/// <param name="Url">url</param>
/// <param name="postDataStr">GET数据</param>
/// <param name="cookie">GET容器</param>
/// <returns></returns>
public string SendDataByGET(string Url, string postDataStr, ref CookieContainer cookie)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url +( postDataStr == "" ? "" : "?") + postDataStr);
if (cookie.Count == 0)
{
request.CookieContainer = new CookieContainer();
cookie = request.CookieContainer;
}
else
{
request.CookieContainer = cookie;
}
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.GetEncoding("utf-8"));
string retString = myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close();
return retString;
}
#endregion
操作代码
CookieContainer cc=new CookieContainer();
cc.Add(new System.Uri("http://www.baidu.com "), new Cookie("PHPSESSID", "xx"));
string content = web.SendDataByGET("http://www.baidu.com/xx/yy.php","","gbk",ref cc);
MessageBox.Show(content);
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