C#写的Web Http请求

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Web C C++C#.net

usingSystem;
usingSystem.IO;
usingSystem.Net;
usingSystem.Web;
usingSystem.Text;
usingSystem.Collections.Specialized;

namespaceMyWebRequest
...{
/**//// <summary> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> ///HttpWeb请求管理。 <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"> /// </summary>
public classMyHttpWebRequest
...{
/**//// <summary> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> ///保存网站Cookie。 <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"> /// </summary>
private stringm_cookieheader;
/**//// <summary> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> ///页面请求超时限制。 <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"> /// </summary>
private const intTIMEOUT= 10000;

publicMyHttpWebRequest()
...{
//
//构造函数逻辑
//
this.m_cookieheader= "";
}

/**//// <summary> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> ///断开，清除Cookie。 <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"> /// </summary>
public voidDisconnect()
...{
this.m_cookieheader= "";
}

/**//// <summary> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> ///登录，记录会话。 <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"> /// </summary>
public stringLogin(Stringurl,NameValueCollectionparamList,System.Text.EncodingwideCharEncoding)
...{
returngetPage(url,paramList,wideCharEncoding,"POST",true);
}

/**//// <summary> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> ///Form提交方式获取响应数据。 <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"> /// </summary>
public stringpost(Stringurl,NameValueCollectionparamList,System.Text.EncodingwideCharEncoding)
...{
returngetPage(url,paramList,wideCharEncoding,"POST",false);
}

/**//// <summary> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> ///Get方式获取响应数据。 <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"> /// </summary>
public stringgetPage(Stringurl)
...{
returngetPage(url,null,null,"GET",false);
}

/**//// <summary> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> ///Get方式获取响应数据。 <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"> /// </summary>
public byte[]getPageData(Stringurl,booldoSetCookie)
...{
returngetPageBytes(url,null,null,"GET",doSetCookie);
}

private stringgetPage(Stringurl,NameValueCollectionparamList,System.Text.EncodingwideCharEncoding,stringmethod,booldoSetCookie)
...{
returnSystem.Text.Encoding.Default.GetString(getPageBytes(url,paramList,wideCharEncoding,method,doSetCookie));
}

private byte[]getPageBytes(Stringurl,NameValueCollectionparamList,System.Text.EncodingwideCharEncoding,stringmethod,boolresetCookie)
...{
HttpWebResponseres= null;
System.Collections.ArrayListresult= newSystem.Collections.ArrayList(5000);

try
...{
HttpWebRequestreq=(HttpWebRequest)WebRequest.Create(url);
req.Method=method;
req.KeepAlive= true;
req.ContentType= "application/x-www-form-urlencoded";
req.CookieContainer= newCookieContainer();
req.CookieContainer.SetCookies(newUri(url),this.m_cookieheader);
req.Timeout=TIMEOUT;

//上行方式时，设置参数
if(method.ToUpper()!= "GET")
...{
StringBuilderUrlEncoded= newStringBuilder();
Char[]reserved= ...{'?','=','&'};
byte[]SomeBytes= null;

if(paramList!= null)
...{
System.Text.StringBuilderparamBuilder= newSystem.Text.StringBuilder();
Stringparamstr= null;
for(intli=0;li<paramlist.keys.count><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> if(li> 0) <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">paramBuilder.Append("&"); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">paramBuilder.Append(paramList.Keys[li]); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">paramBuilder.Append("="); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">paramBuilder.Append(paramList[paramList.Keys[li]]); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">paramstr=paramBuilder.ToString(); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> inti=0,j; <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> while(i<paramstr.length><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">j=paramstr.IndexOfAny(reserved,i); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> if(j==-1) <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">UrlEncoded.Append(HttpUtility.UrlEncode(paramstr.Substring(i,paramstr.Length-i),wideCharEncoding)); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> break; <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">UrlEncoded.Append(HttpUtility.UrlEncode(paramstr.Substring(i,j-i),wideCharEncoding)); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">UrlEncoded.Append(paramstr.Substring(j,1)); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">i=j+1; <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">SomeBytes=Encoding.ASCII.GetBytes(UrlEncoded.ToString()); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">req.ContentLength=SomeBytes.Length; <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">StreamnewStream=req.GetRequestStream(); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">newStream.Write(SomeBytes,0,SomeBytes.Length); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">newStream.Close(); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> else <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">req.ContentLength= 0; <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> //请求响应 <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">res=(HttpWebResponse)req.GetResponse(); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> if(resetCookie) <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> this.m_cookieheader=req.CookieContainer.GetCookieHeader(newUri(url)); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> //读取数据 <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">StreamReceiveStream=res.GetResponseStream(); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">System.IO.BinaryReadersr= newBinaryReader(ReceiveStream); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> byte[]read= new byte[256]; <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> intcount=sr.Read(read,0,256); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> while(count> 0) <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">result.AddRange(GetSubBytes(read,0,count)); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">count=sr.Read(read,0,256); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> catch <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">result.Clear(); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> finally <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> if(res!= null) <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">res.Close(); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> return(byte[])result.ToArray(typeof(byte)); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> private byte[]GetSubBytes(byte[]buffer,intindex,intcount) <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> if((count+index)>buffer.Length) <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif" align="top"><img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif" align="top"> ...{ <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">count=buffer.Length-index; <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top">System.IO.MemoryStreams= newSystem.IO.MemoryStream(buffer,index,count); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif" align="top"> returns.ToArray(); <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top">} <img alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif" align="top">}</paramstr.length></paramlist.keys.count>