使用HttpWebRequest发布表单数据
使用HttpWebRequest发布表单数据
提问于 2013-02-05 16:18:19
我想将一些表单数据发布到指定的URL，而该URL不在我自己的web应用程序中。它有相同的域名，比如"domain.client.nl“。web应用程序有一个url "web.domain.client.nl“，其中我想发布的url是"idp.domain.client.nl”。但是我的代码什么也不做……有人知道我做错了什么吗？
Wouter
StringBuilder postData = new StringBuilder();
postData.Append(HttpUtility.UrlEncode(String.Format("username={0}&", uname)));
postData.Append(HttpUtility.UrlEncode(String.Format("password={0}&", pword)));
postData.Append(HttpUtility.UrlEncode(String.Format("url_success={0}&", urlSuccess)));
postData.Append(HttpUtility.UrlEncode(String.Format("url_failed={0}", urlFailed)));
ASCIIEncoding ascii = new ASCIIEncoding();
byte[] postBytes = ascii.GetBytes(postData.ToString());
// set up request object
HttpWebRequest request;
try
{
request = (HttpWebRequest)HttpWebRequest.Create(WebSiteConstants.UrlIdp);
}
catch (UriFormatException)
{
request = null;
}
if (request == null)
throw new ApplicationException("Invalid URL: " + WebSiteConstants.UrlIdp);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postBytes.Length;
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)";
// add post data to request
Stream postStream = request.GetRequestStream();
postStream.Write(postBytes, 0, postBytes.Length);
postStream.Flush();
postStream.Close();回答 3
Stack Overflow用户
发布于 2014-03-07 03:48:01
字段名称和值都应采用url编码。发布数据和查询字符串的格式相同
.net的方法是这样做的
NameValueCollection outgoingQueryString = HttpUtility.ParseQueryString(String.Empty);
outgoingQueryString.Add("field1","value1");
outgoingQueryString.Add("field2", "value2");
string postdata = outgoingQueryString.ToString();这将负责字段和值名的编码
Stack Overflow用户
发布于 2015-04-14 11:55:36
试试这个：
var request = (HttpWebRequest)WebRequest.Create("http://www.example.com/recepticle.aspx");
var postData = "thing1=hello";
postData += "&thing2=world";
var data = Encoding.ASCII.GetBytes(postData);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;
using (var stream = request.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
var response = (HttpWebResponse)request.GetResponse();
var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();Stack Overflow用户
发布于 2021-01-21 16:06:56
使用以下代码：
internal void SomeFunction() {
Dictionary<string, string> formField = new Dictionary<string, string>();
formField.Add("Name", "Henry");
formField.Add("Age", "21");
string body = GetBodyStringFromDictionary(formField);
// output : Name=Henry&Age=21
}
internal string GetBodyStringFromDictionary(Dictionary<string, string> formField)
{
string body = string.Empty;
foreach (var pair in formField)
{
body += $"{pair.Key}={pair.Value}&";
}
// delete last "&"
body = body.Substring(0, body.Length - 1);
return body;
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/14702902
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