C# 發HTTP請求

m47c 9年前發布 | 4K 次閱讀 C# 

    protected void btnSend_Click(object sender, EventArgs e)

            {



            string url = "http://localhost:3547/waplocation.aspx";  
            string mobileNo = this.txtMobileNo.Text;  

            StringBuilder reqStr = new StringBuilder(100);  
            reqStr.Append("reqtype=" + txtReqType.Text + "&mobile=" + mobileNo);  
            //reqStr.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");  
            //reqStr.Append("<request>");  
            //reqStr.Append("<head><reqtype>" +txtReqType.Text +"</reqtype></head>");  
            //reqStr.Append("<body>");  
            //reqStr.Append("<mobiles>");  
            //reqStr.Append("<mobile>" + mobileNo +"</mobile>");  
            //reqStr.Append("</mobiles>");  
            //reqStr.Append("</body>");  
            //reqStr.Append("</request>");  

            string postData = reqStr.ToString();  

            ASCIIEncoding encoding = new ASCIIEncoding();  
            byte[] data = encoding.GetBytes(postData);  
            HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url);  

            myRequest.Method = "POST";  
            myRequest.ContentType = "application/x-www-form-urlencoded";  
            myRequest.ContentLength = data.Length;  
            Stream newStream = myRequest.GetRequestStream();  


            newStream.Write(data, 0, data.Length);  
            newStream.Close();  

            HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();  
            StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.Default);  
            string content = reader.ReadToEnd();  
            txtResult.Text = content;  
        }  </pre> 




 如果公司設置了代理，可以這樣：


    try

                {

                    string postData = "";



                ASCIIEncoding encoding = new ASCIIEncoding();  
                byte[] data = encoding.GetBytes(postData);  
                WebProxy wp = new WebProxy("proxy Address");  
                wp.Credentials = new System.Net.NetworkCredential("username", "password","domain");  




                HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url);  
                myRequest.Proxy = wp;   

                myRequest.Method = "POST";  
                myRequest.ContentType = "application/x-www-form-urlencoded";  
                myRequest.ContentLength = data.Length;  
                Stream newStream = myRequest.GetRequestStream();  


                newStream.Write(data, 0, data.Length);  
                newStream.Close();  


                HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();  
                StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.Default);  
                string content = reader.ReadToEnd();  
                return content;  
            }  

            catch(Exception ex){  
                return string.Empty;  
            }  




</pre>
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