Question

public void sendSingleSMS(String username, String password, String senderid, String mobileNo, String message)
{
        request.ContentLength = 0;
        String smsservicetype = "singlemsg"; //For single message.

        String query = "username=" + HttpUtility.UrlEncode(username) + "&password=" + HttpUtility.UrlEncode(password) + "&smsservicetype=" + HttpUtility.UrlEncode(smsservicetype) + "&content=" + HttpUtility.UrlEncode(message) + "&mobileno=" + HttpUtility.UrlEncode(mobileNo) + "&senderid=" + HttpUtility.UrlEncode(senderid);
        byte[] byteArray = Encoding.UTF8.GetBytes(query);
        request.ContentType = "application/x-www-form-urlencoded";

        request.ContentLength = byteArray.Length;            
        dataStream = request.GetRequestStream();            
        dataStream.Write(byteArray, 0, byteArray.Length);           
        dataStream.Close();           
        WebResponse response = request.GetResponse();            
        String Status = ((HttpWebResponse)response).StatusDescription;
        dataStream = response.GetResponseStream();
        StreamReader reader = new StreamReader(dataStream);
        string responseFromServer = reader.ReadToEnd();
        reader.Close();
        //byteArray.clear(0);
        //byteArray.length = 0;
        dataStream.Close();
        response.Close();
        //request.ContentType = null;

        request.Abort();
}

请帮助我们解决此错误...

我想重用一个WebRequest对象，以便保存cookie和会话以便以后向服务器请求。以下是我的代码。如果我在第二次使用Post功能两次

request.ContentLength = byteArray.Length; 它会抛出异常

写入开始后无法设置此属性！但正如你所看到的那样

dataStream.Close（）; 应该关闭写作过程！有谁知道发生了什么？

Answer 1

为了保留cookie（以及会话），你想使用HttpWebRequest及其CookieContainer

首先你创建它：

CookieContainer cookieJar = new CookieContainer();

然后将其分配给您的请求：

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.CookieContainer = cookieJar;

然后你做任何你想做的事情（发送请求，获得响应，处理响应......）。然后你可以创建另一个请求＆＃34;重用＆＃34; cookieJar：

HttpWebRequest request2 = (HttpWebRequest)WebRequest.Create(url2);
request2.CookieContainer = cookieJar;

第二个请求将使用相同的cookieJar，它将包含来自第一个请求 - 响应的cookie。

request.ContentLength = byteArray.Length;它将在同一方法中第二次抛出异常

1 个答案: