是否可以将数据从C#应用程序发送到网站/Web服务器？
我希望有人能帮我解答一个多年来一直困扰我的问题 是否可以在打开浏览器时将数据从C#应用程序发送到网页，例如，如果您有在线登录表单，并且希望从C#应用程序向该表单发布用户名和密码 我看到类似于打开浏览器的表单页面，并将登录详细信息从程序发布到该页面，然后该页面可以直接处理表单，从而将其登录并发送到主页。这可能吗 提前谢谢 保罗是的 您可以使用HttpWebRequest与网页或web服务器（或web服务）通信。这是我用来从facebook url获取数据的实际代码：是否可以将数据从C#应用程序发送到网站/Web服务器？,c#,php,apache,http,post,C#,Php,Apache,Http,Post,我希望有人能帮我解答一个多年来一直困扰我的问题 是否可以在打开浏览器时将数据从C#应用程序发送到网页，例如，如果您有在线登录表单，并且希望从C#应用程序向该表单发布用户名和密码 我看到类似于打开浏览器的表单页面，并将登录详细信息从程序发布到该页面，然后该页面可以直接处理表单，从而将其登录并发送到主页。这可能吗 提前谢谢 保罗是的 您可以使用HttpWebRequest与网页或web服务器（或web服务）通信。这是我用来从facebook url获取数据的实际代码： internal static
internal static string FbFetch(string url)
{
var request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "GET";
using (var response = (HttpWebResponse)request.GetResponse())
{
using (var reader = new StreamReader(response.GetResponseStream()))
{
var responseText = reader.ReadToEnd();
return responseText;
}
}
}
祝你好运。要回答你关于HTTP帖子（带附件）的问题，因为有附件，要困难得多。这是我在FaceBook上发布图片时使用的实际代码
/// <summary>
/// Create a new HttpWebRequest with the default properties for HTTP POSTS
/// </summary>
/// <param name="url">The URL to be posted to</param>
/// <param name="referer">The refer</param>
/// <param name="cookies">CookieContainer that should be used in this request</param>
/// <param name="postData">The post data</param>
private string CreateHttpWebUploadRequest(string url, string referer, CookieContainer cookies, NameValueCollection postData, FileInfo fileData, string fileContentType)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
string boundary = "----------" + DateTime.UtcNow.Ticks.ToString("x", CultureInfo.InvariantCulture);
// set the request variables
request.Method = WebRequestMethods.Http.Post;
request.ContentType = "multipart/form-data; boundary=" + boundary;
request.CookieContainer = cookies;
request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.55 Safari/533.4";
request.Accept = "image/gif, image/jpeg, image/pjpeg, image/pjpeg, */*";
request.Headers.Add("Accept-Encoding: gzip,deflate");
request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
request.Headers.Add("Accept-Language: en-us");
request.Referer = referer;
request.KeepAlive = true;
request.AllowAutoRedirect = false;
// process through the fields
StringBuilder sbHeader = new StringBuilder();
// add form fields, if any
if (postData != null)
{
foreach (string key in postData.AllKeys)
{
string[] values = postData.GetValues(key);
if (values != null)
{
foreach (string value in values)
{
if (!string.IsNullOrEmpty(value))
sbHeader.AppendFormat("--{0}\r\n", boundary);
sbHeader.AppendFormat("Content-Disposition: form-data; name=\"{0}\";\r\n\r\n{1}\r\n", key, value);
}
}
}
}
if (fileData != null)
{
sbHeader.AppendFormat("--{0}\r\n", boundary);
sbHeader.AppendFormat("Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\n", "media", fileData.Name);
sbHeader.AppendFormat("Content-Type: {0}\r\n\r\n", fileContentType);
}
byte[] header = Encoding.UTF8.GetBytes(sbHeader.ToString());
byte[] footer = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");
long contentLength = header.Length + (fileData != null ? fileData.Length : 0) + footer.Length;
// set content length
request.ContentLength = contentLength;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(header, 0, header.Length);
// write the uploaded file
if (fileData != null)
{
// write the file data, if any
byte[] buffer = new Byte[fileData.Length];
var bytesRead = fileData.OpenRead().Read(buffer, 0, (int)(fileData.Length));
requestStream.Write(buffer, 0, bytesRead);
}
// write footer
requestStream.Write(footer, 0, footer.Length);
requestStream.Flush();
requestStream.Close();
using (var response = request.GetResponse() as HttpWebResponse)
{
using (var stIn = new System.IO.StreamReader(response.GetResponseStream()))
{
return stIn.ReadToEnd();
}
}
}
}
/// <summary>
/// Create a new HttpWebRequest with the default properties for HTTP POSTS
/// </summary>
/// <param name="url">The URL to be posted to</param>
/// <param name="referer">The refer</param>
/// <param name="cookies">CookieContainer that should be used in this request</param>
/// <param name="postData">The post data (needs to be formatted in name=value& format</param>
private string CreateHttpWebPostRequest(string url, string referer, CookieContainer cookies, NameValueCollection postData)
{
var sbPostData = new StringBuilder();
if (postData != null)
{
foreach (string key in postData.AllKeys)
{
string[] values = postData.GetValues(key);
if (values != null)
{
foreach (string value in values)
{
if (!string.IsNullOrEmpty(value))
sbPostData.Append(string.Format("{0}={1}&", HttpUtility.UrlEncode(key), HttpUtility.UrlEncode(value)));
}
}
}
}
var parameterString = Encoding.UTF8.GetBytes(sbPostData.ToString());
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
request.Method = WebRequestMethods.Http.Post;
request.CookieContainer = cookies;
request.ContentLength = parameterString.Length;
request.ContentType = "application/x-www-form-urlencoded";
request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.55 Safari/533.4";
request.Accept = "image/gif, image/jpeg, image/pjpeg, image/pjpeg, */*";
request.Headers.Add("Accept-Encoding: gzip,deflate");
request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
request.Headers.Add("Accept-Language: en-us");
request.Referer = referer;
request.KeepAlive = true;
request.AllowAutoRedirect = false;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(parameterString, 0, parameterString.Length);
requestStream.Close();
using (var response = request.GetResponse() as HttpWebResponse)
{
using (var stIn = new System.IO.StreamReader(response.GetResponseStream()))
{
return stIn.ReadToEnd();
}
}
}
}
//
///使用HTTP POST的默认属性创建新的HttpWebRequest
///
///要发布到的URL
///推荐人
///此请求中应使用的CookieContainer
///邮政数据
私有字符串CreateHttpWebUploadRequest（字符串url、字符串引用器、CookieContainer cookies、NameValueCollection postData、FileInfo fileData、字符串fileContentType）
{
HttpWebRequest请求=（HttpWebRequest）HttpWebRequest.Create（url）；
字符串边界=“------------”+DateTime.UtcNow.Ticks.ToString（“x”，CultureInfo.InvariantCulture）；
//设置请求变量
request.Method=WebRequestMethods.Http.Post；
request.ContentType=“多部分/表单数据；boundary=“+boundary；
request.CookieContainer=cookies；
request.UserAgent=“Mozilla/5.0（Windows；U；Windows NT 6.1；en-US）AppleWebKit/533.4（KHTML，如Gecko）Chrome/5.0.375.55 Safari/533.4”；
request.Accept=“image/gif，image/jpeg，image/pjpeg，image/pjpeg，*/*”；
Add（“接受编码：gzip，deflate”）；
request.AutomaticDecompression=DecompressionMethods.Deflate | DecompressionMethods.GZip；
request.Headers.Add（“接受语言：en-us”）；
request.Referer=Referer；
request.KeepAlive=true；
request.AllowAutoRedirect=false；
//穿过田野
StringBuilder sbHeader=新的StringBuilder（）；
//添加表单字段（如果有）
if（postData！=null）
{
foreach（postData.AllKeys中的字符串键）
{
string[]values=postData.GetValues（键）；
如果（值！=null）
{
foreach（值中的字符串值）
{
如果（！string.IsNullOrEmpty（值））
sbHeader.AppendFormat（“--{0}\r\n”，边界）；
sbHeader.AppendFormat（“内容处置：表单数据；名称=\”{0}\”；\r\n\r\n{1}\r\n”，键，值）；
}
}
}
}
if（fileData！=null）
{
sbHeader.AppendFormat（“--{0}\r\n”，边界）；
sbHeader.AppendFormat（“内容处置：表单数据；名称=\”{0}\“文件名=\”{1}\“\r\n”，“媒体”，fileData.name）；
sbHeader.AppendFormat（“内容类型：{0}\r\n\r\n”，fileContentType）；
}
byte[]header=Encoding.UTF8.GetBytes（sbHeader.ToString（））；
byte[]footer=Encoding.UTF8.GetBytes（“\r\n--”+boundary+”--\r\n”）；
long contentLength=header.Length+（fileData！=null？fileData.Length:0）+footer.Length；
//设置内容长度
request.ContentLength=ContentLength；
使用（Stream requestStream=request.GetRequestStream（））
{
Write（header，0，header.Length）；
//写上传的文件
if（fileData！=null）
{
//写入文件数据（如果有）
byte[]buffer=新字节[fileData.Length]；
var bytesRead=fileData.OpenRead（）.Read（缓冲区，0，（int）（fileData.Length））；
写入（缓冲区，0，字节读取）；
}
//写页脚
Write（页脚，0，页脚长度）；
requestStream.Flush（）；
requestStream.Close（）；
使用（var response=request.GetResponse（）作为HttpWebResponse）
{
使用（var stIn=new System.IO.StreamReader（response.GetResponseStream（））
{
返回stIn.ReadToEnd（）；
}
}
}
}
/// <summary>
/// Create a new HttpWebRequest with the default properties for HTTP POSTS
/// </summary>
/// <param name="url">The URL to be posted to</param>
/// <param name="referer">The refer</param>
/// <param name="cookies">CookieContainer that should be used in this request</param>
/// <param name="postData">The post data</param>
private string CreateHttpWebUploadRequest(string url, string referer, CookieContainer cookies, NameValueCollection postData, FileInfo fileData, string fileContentType)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
string boundary = "----------" + DateTime.UtcNow.Ticks.ToString("x", CultureInfo.InvariantCulture);
// set the request variables
request.Method = WebRequestMethods.Http.Post;
request.ContentType = "multipart/form-data; boundary=" + boundary;
request.CookieContainer = cookies;
request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.55 Safari/533.4";
request.Accept = "image/gif, image/jpeg, image/pjpeg, image/pjpeg, */*";
request.Headers.Add("Accept-Encoding: gzip,deflate");
request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
request.Headers.Add("Accept-Language: en-us");
request.Referer = referer;
request.KeepAlive = true;
request.AllowAutoRedirect = false;
// process through the fields
StringBuilder sbHeader = new StringBuilder();
// add form fields, if any
if (postData != null)
{
foreach (string key in postData.AllKeys)
{
string[] values = postData.GetValues(key);
if (values != null)
{
foreach (string value in values)
{
if (!string.IsNullOrEmpty(value))
sbHeader.AppendFormat("--{0}\r\n", boundary);
sbHeader.AppendFormat("Content-Disposition: form-data; name=\"{0}\";\r\n\r\n{1}\r\n", key, value);
}
}
}
}
if (fileData != null)
{
sbHeader.AppendFormat("--{0}\r\n", boundary);
sbHeader.AppendFormat("Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\n", "media", fileData.Name);
sbHeader.AppendFormat("Content-Type: {0}\r\n\r\n", fileContentType);
}
byte[] header = Encoding.UTF8.GetBytes(sbHeader.ToString());
byte[] footer = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");
long contentLength = header.Length + (fileData != null ? fileData.Length : 0) + footer.Length;
// set content length
request.ContentLength = contentLength;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(header, 0, header.Length);
// write the uploaded file
if (fileData != null)
{
// write the file data, if any
byte[] buffer = new Byte[fileData.Length];
var bytesRead = fileData.OpenRead().Read(buffer, 0, (int)(fileData.Length));
requestStream.Write(buffer, 0, bytesRead);
}
// write footer
requestStream.Write(footer, 0, footer.Length);
requestStream.Flush();
requestStream.Close();
using (var response = request.GetResponse() as HttpWebResponse)
{
using (var stIn = new System.IO.StreamReader(response.GetResponseStream()))
{
return stIn.ReadToEnd();
}
}
}
}
/// <summary>
/// Create a new HttpWebRequest with the default properties for HTTP POSTS
/// </summary>
/// <param name="url">The URL to be posted to</param>
/// <param name="referer">The refer</param>
/// <param name="cookies">CookieContainer that should be used in this request</param>
/// <param name="postData">The post data (needs to be formatted in name=value& format</param>
private string CreateHttpWebPostRequest(string url, string referer, CookieContainer cookies, NameValueCollection postData)
{
var sbPostData = new StringBuilder();
if (postData != null)
{
foreach (string key in postData.AllKeys)
{
string[] values = postData.GetValues(key);
if (values != null)
{
foreach (string value in values)
{
if (!string.IsNullOrEmpty(value))
sbPostData.Append(string.Format("{0}={1}&", HttpUtility.UrlEncode(key), HttpUtility.UrlEncode(value)));
}
}
}
}
var parameterString = Encoding.UTF8.GetBytes(sbPostData.ToString());
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
request.Method = WebRequestMethods.Http.Post;
request.CookieContainer = cookies;
request.ContentLength = parameterString.Length;
request.ContentType = "application/x-www-form-urlencoded";
request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.55 Safari/533.4";
request.Accept = "image/gif, image/jpeg, image/pjpeg, image/pjpeg, */*";
request.Headers.Add("Accept-Encoding: gzip,deflate");
request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
request.Headers.Add("Accept-Language: en-us");
request.Referer = referer;
request.KeepAlive = true;
request.AllowAutoRedirect = false;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(parameterString, 0, parameterString.Length);
requestStream.Close();
using (var response = request.GetResponse() as HttpWebResponse)
{
using (var stIn = new System.IO.StreamReader(response.GetResponseStream()))
{
return stIn.ReadToEnd();
}
}
}
}
//
///使用HTTP POST的默认属性创建新的HttpWebRequest
///
///要发布到的URL
///推荐人
///此请求中应使用的CookieContainer
///post数据（需要以名称=值和格式进行格式化
私有字符串CreateHttpWebPostRequest（字符串url、字符串引用器、CookieContainer cookies、NameValueCollection postData）
{
var sbPostData=新的StringBuilder（）；
if（postData！=null）
{
foreach（postData.AllKeys中的字符串键）
{
string[]values=postData.GetValues（键）；
如果（值！=null）
{
foreach（值中的字符串值）
{
如果（！string.IsNullOrEmpty（值））