辅助类
/// <summary>
/// 上传数据参数
/// </summary>
public class UploadEventArgs : EventArgs
{
int bytesSent;
int totalBytes;
/// <summary>
/// 已发送的字节数
/// </summary>
public int BytesSent
{
get { return bytesSent; }
set { bytesSent = value; }
}
/// <summary>
/// 总字节数
/// </summary>
public int TotalBytes
{
get { return totalBytes; }
set { totalBytes = value; }
}
}
/// <summary>
/// 下载数据参数
/// </summary>
public class DownloadEventArgs : EventArgs
{
int bytesReceived;
int totalBytes;
byte[] receivedData;
/// <summary>
/// 已接收的字节数
/// </summary>
public int BytesReceived
{
get { return bytesReceived; }
set { bytesReceived = value; }
}
/// <summary>
/// 总字节数
/// </summary>
public int TotalBytes
{
get { return totalBytes; }
set { totalBytes = value; }
}
/// <summary>
/// 当前缓冲区接收的数据
/// </summary>
public byte[] ReceivedData
{
get { return receivedData; }
set { receivedData = value; }
}
}
public class WebClient2
{
Encoding encoding = Encoding.UTF8;
string respHtml = "";
WebProxy proxy;
static CookieContainer cc;
WebHeaderCollection requestHeaders;
WebHeaderCollection responseHeaders;
int bufferSize = 15240;
public event EventHandler<UploadEventArgs> UploadProgressChanged;
public event EventHandler<DownloadEventArgs> DownloadProgressChanged;
static WebClient2()
{
LoadCookiesFromDisk();
}
/// <summary>
/// 创建WebClient的实例
/// </summary>
public WebClient2()
{
requestHeaders = new WebHeaderCollection();
responseHeaders = new WebHeaderCollection();
}
/// <summary>
/// 设置发送和接收的数据缓冲大小
/// </summary>
public int BufferSize
{
get { return bufferSize; }
set { bufferSize = value; }
}
/// <summary>
/// 获取响应头集合
/// </summary>
public WebHeaderCollection ResponseHeaders
{
get { return responseHeaders; }
}
/// <summary>
/// 获取请求头集合
/// </summary>
public WebHeaderCollection RequestHeaders
{
get { return requestHeaders; }
}
/// <summary>
/// 获取或设置代理
/// </summary>
public WebProxy Proxy
{
get { return proxy; }
set { proxy = value; }
}
/// <summary>
/// 获取或设置请求与响应的文本编码方式
/// </summary>
public Encoding Encoding
{
get { return encoding; }
set { encoding = value; }
}
/// <summary>
/// 获取或设置响应的html代码
/// </summary>
public string RespHtml
{
get { return respHtml; }
set { respHtml = value; }
}
/// <summary>
/// 获取或设置与请求关联的Cookie容器
/// </summary>
public CookieContainer CookieContainer
{
get { return cc; }
set { cc = value; }
}
/// <summary>
/// 获取网页源代码
/// </summary>
/// <param name="url">网址</param>
/// <returns></returns>
public string GetHtml(string url)
{
HttpWebRequest request = CreateRequest(url, "GET");
respHtml = encoding.GetString(GetData(request));
return respHtml;
}
public CredentialCache CredentialCache
{
get;
set;
}
/// <summary>
/// 下载文件
/// </summary>
/// <param name="url">文件URL地址</param>
/// <param name="filename">文件保存完整路径</param>
public void DownloadFile(string url, string filename)
{
FileStream fs = null;
try
{
HttpWebRequest request = CreateRequest(url, "GET");
byte[] data = GetData(request);
fs = new FileStream(filename, FileMode.Create, FileAccess.Write);
fs.Write(data, 0, data.Length);
}
finally
{
if (fs != null) fs.Close();
}
}
/// <summary>
/// 从指定URL下载数据
/// </summary>
/// <param name="url">网址</param>
/// <returns></returns>
public byte[] GetData(string url)
{
HttpWebRequest request = CreateRequest(url, "GET");
return GetData(request);
}
/// <summary>
/// 向指定URL发送文本数据
/// </summary>
/// <param name="url">网址</param>
/// <param name="postData">urlencode编码的文本数据</param>
/// <returns></returns>
public string Post(string url, string postData)
{
byte[] data = encoding.GetBytes(postData);
return Post(url, data);
}
/// <summary>
/// 向指定URL发送字节数据
/// </summary>
/// <param name="url">网址</param>
/// <param name="postData">发送的字节数组</param>
/// <returns></returns>
public string Post(string url, byte[] postData, string contentType = "application/x-www-form-urlencoded")
{
HttpWebRequest request = CreateRequest(url, "POST");
request.ContentType = contentType;
request.ContentLength = postData.Length;
request.KeepAlive = true;
PostData(request, postData);
respHtml = encoding.GetString(GetData(request));
return respHtml;
}
/// <summary>
/// 向指定URL发送字节数据
/// </summary>
/// <param name="url">网址</param>
/// <param name="postData">发送的字节数组</param>
/// <returns></returns>
public string Post(string url, string data, WebHeaderCollection header, string contentType = "application/x-www-form-urlencoded")
{
byte[] postData = encoding.GetBytes(data);
HttpWebRequest request = CreateRequest(url, "POST");
request.ContentType = contentType;
request.ContentLength = postData.Length;
request.KeepAlive = true;
foreach (string key in header.Keys)
{
request.Headers.Add(key, header[key]);
}
PostData(request, postData);
respHtml = encoding.GetString(GetData(request));
return respHtml;
}
/// <summary>
/// 向指定网址发送mulitpart编码的数据
/// </summary>
/// <param name="url">网址</param>
/// <param name="mulitpartForm">mulitpart form data</param>
/// <returns></returns>
//public string Post(string url, MultipartForm mulitpartForm)
//{
// HttpWebRequest request = CreateRequest(url, "POST");
// request.ContentType = mulitpartForm.ContentType;
// request.ContentLength = mulitpartForm.FormData.Length;
// request.KeepAlive = true;
// PostData(request, mulitpartForm.FormData);
// var stream = GetData(request);
// respHtml = encoding.GetString(stream);
// return respHtml;
//}
/// <summary>
/// 读取请求返回的数据
/// </summary>
/// <param name="request">请求对象</param>
/// <returns></returns>
private byte[] GetData(HttpWebRequest request)
{
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream stream = response.GetResponseStream();
responseHeaders = response.Headers;
//SaveCookiesToDisk();
DownloadEventArgs args = new DownloadEventArgs();
if (responseHeaders[HttpResponseHeader.ContentLength] != null)
args.TotalBytes = Convert.ToInt32(responseHeaders[HttpResponseHeader.ContentLength]);
MemoryStream ms = new MemoryStream();
int count = 0;
byte[] buf = new byte[bufferSize];
while ((count = stream.Read(buf, 0, buf.Length)) > 0)
{
ms.Write(buf, 0, count);
if (this.DownloadProgressChanged != null)
{
args.BytesReceived += count;
args.ReceivedData = new byte[count];
Array.Copy(buf, args.ReceivedData, count);
this.DownloadProgressChanged(this, args);
}
}
stream.Close();
//解压
if (ResponseHeaders[HttpResponseHeader.ContentEncoding] != null)
{
MemoryStream msTemp = new MemoryStream();
count = 0;
buf = new byte[100];
switch (ResponseHeaders[HttpResponseHeader.ContentEncoding].ToLower())
{
case "gzip":
GZipStream gzip = new GZipStream(ms, CompressionMode.Decompress);
while ((count = gzip.Read(buf, 0, buf.Length)) > 0)
{
msTemp.Write(buf, 0, count);
}
return msTemp.ToArray();
case "deflate":
DeflateStream deflate = new DeflateStream(ms, CompressionMode.Decompress);
while ((count = deflate.Read(buf, 0, buf.Length)) > 0)
{
msTemp.Write(buf, 0, count);
}
return msTemp.ToArray();
default:
break;
}
}
return ms.ToArray();
}
/// <summary>
/// 发送请求数据
/// </summary>
/// <param name="request">请求对象</param>
/// <param name="postData">请求发送的字节数组</param>
private void PostData(HttpWebRequest request, byte[] postData)
{
int offset = 0;
int sendBufferSize = bufferSize;
int remainBytes = 0;
Stream stream = request.GetRequestStream();
UploadEventArgs args = new UploadEventArgs();
args.TotalBytes = postData.Length;
while ((remainBytes = postData.Length - offset) > 0)
{
if (sendBufferSize > remainBytes) sendBufferSize = remainBytes;
stream.Write(postData, offset, sendBufferSize);
offset += sendBufferSize;
if (this.UploadProgressChanged != null)
{
args.BytesSent = offset;
this.UploadProgressChanged(this, args);
}
}
stream.Close();
}
/// <summary>
/// 创建HTTP请求
/// </summary>
/// <param name="url">URL地址</param>
/// <returns></returns>
private HttpWebRequest CreateRequest(string url, string method)
{
Uri uri = new Uri(url);
if (uri.Scheme == "https")
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(this.CheckValidationResult);
// Set a default policy level for the "http:" and "https" schemes.
HttpRequestCachePolicy policy = new HttpRequestCachePolicy(HttpRequestCacheLevel.Revalidate);
HttpWebRequest.DefaultCachePolicy = policy;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
request.AllowAutoRedirect = false;
request.AllowWriteStreamBuffering = false;
request.Method = method;
if (CredentialCache != null)
{
request.Credentials = CredentialCache;
//string authByte ="NTLM " + Convert.ToBase64String(new ASCIIEncoding().GetBytes
// (
// CredentialCache.DefaultNetworkCredentials.UserName + ":" +
// CredentialCache.DefaultNetworkCredentials.Password
// ));
//request.Headers.Add("Authorization", authByte);
}
if (proxy != null) request.Proxy = proxy;
request.CookieContainer = cc;
foreach (string key in requestHeaders.Keys)
{
request.Headers.Add(key, requestHeaders[key]);
}
requestHeaders.Clear();
return request;
}
private bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
{
return true;
}
/// <summary>
/// 将Cookie保存到磁盘
/// </summary>
private static void SaveCookiesToDisk()
{
string cookieFile = System.Environment.GetFolderPath(Environment.SpecialFolder.Cookies) + "\\webclient.cookie";
FileStream fs = null;
try
{
fs = new FileStream(cookieFile, FileMode.Create);
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter formater = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
formater.Serialize(fs, cc);
}
finally
{
if (fs != null) fs.Close();
}
}
/// <summary>
/// 从磁盘加载Cookie
/// </summary>
private static void LoadCookiesFromDisk()
{
cc = new CookieContainer();
string cookieFile = System.Environment.GetFolderPath(Environment.SpecialFolder.Cookies) + "\\webclient.cookie";
if (!File.Exists(cookieFile))
return;
FileStream fs = null;
try
{
fs = new FileStream(cookieFile, FileMode.Open, FileAccess.Read, FileShare.Read);
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter formater = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
cc = (CookieContainer)formater.Deserialize(fs);
}
finally
{
if (fs != null) fs.Close();
}
}
}
用法
WebHeaderCollection header = new WebHeaderCollection();
header.Add("SOAPAction", string.Format("‘{0}‘", SOAPAction));
var postData = string.Format(@"<SOAP-ENV:Envelope xmlns:SOAP-ENV=‘http://schemas.xmlsoap.org/soap/envelope/‘ xmlns:SOAP-ENC=‘http://schemas.xmlsoap.org/soap/encoding/‘ xmlns:xsi=‘http://www.w3.org/2001/XMLSchema-instance‘ xmlns:xsd=‘http://www.w3.org/2001/XMLSchema‘>
<SOAP-ENV:Body>
<m:NewContactExOrder xmlns:m=‘http://siebel.com/asi/BYM‘>
<InXml xsi:type=‘xsd:string‘><![CDATA[{0}]]></InXml>
<Source xsi:type=‘xsd:string‘>{1}</Source>
</m:NewContactExOrder>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>", inXml, source);
WebClient2 wc = new WebClient2();
var response = wc.Post(url, postData, header, "text/xml; Charset=UTF-8");
时间： 2024-10-06 14:13:26