手工發(fā)送HTTP請(qǐng)求主要是調(diào)用System.Net的HttpWebResponse方法

手工發(fā)送HTTP的GET請(qǐng)求:
   string strURL = "http://localhost/Play/CH1/Service1.asmx/doSearch?keyword=";
   strURL +=this.textBox1.Text;
   System.Net.HttpWebRequest request;
   //創(chuàng)建一個(gè)HTTP請(qǐng)求
   request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);
   //request.Method="get";
   System.Net.HttpWebResponse response;
   response = (System.Net.HttpWebResponse)request.GetResponse();
   System.IO.Stream s;
   s = response.GetResponseStream();
   XmlTextReader Reader = new XmlTextReader(s);
   Reader.MoveToContent();
   string strValue = Reader.ReadInnerXml();
   strValue = strValue.Replace("<","<");
   strValue = strValue.Replace(">",">");
   MessageBox.Show(strValue); 
   Reader.Close();

手工發(fā)送HTTP的POST請(qǐng)求
   string strURL = "http://localhost/Play/CH1/Service1.asmx/doSearch";
   System.Net.HttpWebRequest request;
   
   request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);
   //Post請(qǐng)求方式
   request.Method="POST";
   //內(nèi)容類型
   request.ContentType="application/x-www-form-urlencoded";
   //參數(shù)經(jīng)過(guò)URL編碼
   string paraUrlCoded = System.Web.HttpUtility.UrlEncode("keyword");
   paraUrlCoded += "=" + System.Web.HttpUtility.UrlEncode(this.textBox1.Text);
   byte[] payload;
   //將URL編碼后的字符串轉(zhuǎn)化為字節(jié)
   payload = System.Text.Encoding.UTF8.GetBytes(paraUrlCoded);
   //設(shè)置請(qǐng)求的ContentLength
   request.ContentLength = payload.Length;
   //獲得請(qǐng)求流
   Stream writer = request.GetRequestStream();
   //將請(qǐng)求參數(shù)寫入流
   writer.Write(payload,0,payload.Length);
   //關(guān)閉請(qǐng)求流
   writer.Close();
   System.Net.HttpWebResponse response;
   //獲得響應(yīng)流
   response = (System.Net.HttpWebResponse)request.GetResponse();
   System.IO.Stream s;
   s = response.GetResponseStream();
   XmlTextReader Reader = new XmlTextReader(s);
   Reader.MoveToContent();
   string strValue = Reader.ReadInnerXml();
   strValue = strValue.Replace("<","<");
   strValue = strValue.Replace(">",">");
   MessageBox.Show(strValue); 
   Reader.Close();

Get請(qǐng)求與Post請(qǐng)求的主要區(qū)別在于Post的參數(shù)要經(jīng)過(guò)URL編碼并在獲得請(qǐng)求之前傳送,而Get把參數(shù)用URL編碼后直接附加到請(qǐng)求的URL后面
URL編碼是一種字符編碼格式,它確保傳遞的參數(shù)由一致的文本組成(如將空格編碼為"%20")

 

 

 

 

url傳遞中文的解決辦法：

 

HTTP請(qǐng)求返回的狀態(tài)碼說(shuō)明

 

 

相關(guān)鏈接：

http://topic.csdn.net/t/20050220/01/3792701.html  winform 向網(wǎng)頁(yè)傳遞數(shù)據(jù)

 

用來(lái)發(fā)送http請(qǐng)求和獲取回發(fā)數(shù)據(jù)

可以保存登錄session。

 

http://www.cnblogs.com/lexus/archive/2007/11/29/977314.html   模擬提交程序