HTTP网络请求

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 using System.Threading.Tasks;
  6 using System.Net;
  7 
  8 namespace DEMO
  9 {
 10     public class Http_Demo
 11     {
 12 
 13         private static String LOG_TAG = "HTTPUtils";                        //标记
 14         private static int CONNECT_TIME_OUT = 5000;                         //超时
 15         private static String HEADER_CONTENT_TYPE = "Content-Type";         //链接类型
 16         private static String HEADER_CONTENT_LENGTH = "Content-Length";     //链接长度
 17         private static String DEFAULT_PARAMS_ENCODING = "UTF-8";            //文本格式
 18 
 19         private System.Net.HttpWebRequest Request = null;
 20         private System.Net.WebResponse Response = null;
 21         private System.IO.Stream Stream = null;
 22         private System.IO.StreamReader Read = null;
 23         private System.Byte[] Byte = null;               //本身就是数组
 24         private System.Text.Encoding Encode = System.Text.Encoding.UTF8;
 25         private System.Text.RegularExpressions.Match Match = null;
 26 
 27         /// <summary>   
 28         /// 公开属性   
 29         /// </summary>   
 30         public System.Net.WebProxy Proxy = new System.Net.WebProxy();
 31 
 32         public string IPFor = null;
 33         public bool HideInfo = false;
 34 
 35         /// <summary>   
 36         /// 初始化Request   
 37         /// </summary>   
 38         /// <param name="Request">对象</param>   
 39         private void init_Request(ref System.Net.HttpWebRequest Request)
 40         {
 41             //终端信息   
 42             Request.Accept =
 43                 "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,image/png,application/java-archive,application/java,application/x-java-archive,text/vnd.sun.j2me.app-descriptor,application/vnd.oma.drm.message,application/vnd.oma.drm.content,application/vnd.oma.dd+xml,application/vnd.oma.drm.rights+xml,application/vnd.oma.drm.rights+wbxml,application/x-nokia-widget,text/x-opml,application/vnd.nokia.headwrapper,*/*;q=0.5";
 44             Request.Headers.Add("Accept-Charset", "iso-8859-1,utf-8;q=0.7,*;q=0.7");
 45             Request.Headers.Add("Accept-Language", "zh-cn, zh;q=1.0,en;q=0.5,en;q=0.5,en;q=0.5");
 46             Request.Headers.Add("Accept-Encoding", "gzip, deflate, x-gzip, identity; q=0.9");
 47             Request.Headers.Add("X-Nokia-MusicShop-Version", "11.0842.9");
 48             //承载方式   
 49             Request.Headers.Add("X-Nokia-MusicShop-Bearer", "GPRS/3G");
 50             Request.Headers.Add("X-Nokia-CONNECTION_MODE", "TCP");
 51             Request.Headers.Add("X-Nokia-BEARER", "3G");
 52             Request.Headers.Add("x-up-bear-type", "GPRS/EDGE");
 53             Request.Headers.Add("X-Up-Bearer-Type", "GPRS");
 54             //GGSN信息   
 55             Request.Headers.Add("x-source-id", "GZGGSN1101BEr");
 56             Request.Headers.Add("Client-IP", "211.139.151.74");
 57             if (IPFor != null) Request.Headers.Add("x-forwarded-for", IPFor);
 58             //网关信息   
 59             Request.Headers.Add("Via", "WTP/1.1 192.168.13.33 (Nokia WAP Gateway 4.1/CD1/ECD13_E/4.1.05)");
 60             Request.Headers.Add("X-Nokia-gateway-id", "NWG/4.1/Build4.1.05");
 61             //目标主机   
 62             //Request.Headers.Add("X-Online-Host", Request.Host);   
 63             //重要信息   
 64             if (!HideInfo)
 65             {
 66                 Request.UserAgent =
 67                     "Mozilla/5.0 (SymbianOS/9.4; U; Series60/5.0 Nokia5230/10.0.055; Profile/MIDP-2.1 Configuration/CLDC-1.1 ) AppleWebKit/413 (KHTML, like Gecko) Safari/413";
 68                 Request.Headers.Add("x-wap-profile", "http://nds1.nds.nokia.com/uaprof/Nokia5230r100-3G.xml");
 69                 if (IPFor != null)
 70                 {
 71                     Request.Headers.Add("x-nokia-ipaddress", IPFor);
 72                 }
 73             }
 74             //自动重定向   
 75             Request.AllowAutoRedirect = false;
 76             //代理设置   
 77             if (Proxy.Address != null)
 78             {
 79                 Request.Proxy = Proxy;
 80             }
 81             //其它杂项   
 82             Request.KeepAlive = false;
 83             Request.Timeout = 8000;
 84         }
 85 
 86         public string get_Internet(string url, string cookie = null)
 87         {
 88             try
 89             {
 90                 Request = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(url);
 91                 url = null;
 92                 if (Request != null)
 93                 {
 94                     init_Request(ref Request);
 95                     if (cookie != null) { Request.Headers.Add("Cookie", cookie); }
 96                     using (Response = Request.GetResponse())
 97                     {
 98                         Stream = Response.GetResponseStream();
 99                         using (Read = new System.IO.StreamReader(Stream, System.Text.Encoding.UTF8))
100                         {
101                             url = Read.ReadToEnd();
102                         }
103                         Read = null;
104                         Stream = null;
105                     }
106                     Response = null;
107                     Request.Abort();
108                     Request = null;
109                 }
110                 return url;
111             }
112             catch (Exception ex)
113             {
114                 //Error.Write(ref ex);   
115                 return null;
116             }
117         }
118 
119         public string post_Internet(string url, Dictionary<String, String> reqParams)
120         {
121             string data = BuildHttpGetURL(url, reqParams);
122             Console.WriteLine(data);
123 
124 
125             string result = null;
126             try
127             {
128                 Request = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(url);
129                 if (Request != null)
130                 {
131                     init_Request(ref Request);                             //请求初始化
132 
133                     Request.Method = "POST";                              //增加自己的属性
134                     Request.ServicePoint.Expect100Continue = false;
135 
136                     Request.ContentType = getBodyContentType();
137 
138                     Byte = Encode.GetBytes(data);
139                     Request.ContentLength = Byte.Length;
140 
141                     using (Stream = Request.GetRequestStream())
142                     {
143                         Stream.Write(Byte, 0, Byte.Length);
144                     }
145                     Stream = null;
146                     Byte = null;
147                     result = null;
148                     using (Response = Request.GetResponse())
149                     {
150                         Stream = Response.GetResponseStream();
151                         using (Read = new System.IO.StreamReader(Stream))
152                         {
153                             result = Read.ReadToEnd();       
154                         }
155                         Read = null;
156                         Stream = null;
157                     }
158                     Response = null;
159                     Request.Abort();
160                     Request = null;
161                 }
162                 return result;
163             }
164             catch (Exception ex)
165             {
166                 //Error.Write(ref ex);   
167                 return null;
168             }
169         }
170 
171         private static String getParamsEncoding()
172         {
173             return DEFAULT_PARAMS_ENCODING;
174         }
175 
176         private static String getBodyContentType() //网络链接类型
177         {
178             return "application/x-www-form-urlencoded; charset=" + getParamsEncoding();
179         }
180 
181         string BuildHttpGetURL(string baseURL, Dictionary<string, string> paramDict) //转化成为了请求的格式
182         {
183             System.Text.StringBuilder sb = new System.Text.StringBuilder();
184             sb.Append(baseURL);
185             if (null != paramDict)
186             {
187                 sb.Append("?");//添加符号
188                 foreach (var pair in paramDict)
189                 {
190                     //TODO: urlencode
191                     sb.Append("&");
192                     sb.Append(pair.Key);
193                     sb.Append("=");
194                     sb.Append(pair.Value);       
195                 }
196             }
197             return sb.ToString();
198         }
199     }
200 }