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.NET自动识别HttpWebResponse的编码及是否压缩

请求和响应头

POST的数据

 

最近项目使用HttpWebRequest请求网页,处理HttpWebResponse返回消息体,发现网页可能是有GZIP压缩等,所得数据乱码,所以相处了解决方案,大家共同学习。
这里是GET方式,POST方式的响应数据基本一样处理即可。
代码:

 1    /// <summary> 2         /// 获取请求信息(get方式) 3         /// </summary> 4         /// <param name="strUrl">请求的地址</param> 5         /// <returns>请求的结果</returns> 6         public static string HttpRequestByGet(string strUrl) 7         { 8             string html = ""; 9             //拼写请求主体地址10             string RequestString = strUrl;11 12             //生成请求对象13             HttpWebRequest httprequestPost = (HttpWebRequest)WebRequest.Create(RequestString);14 15             //设置请求对象属性16             httprequestPost.Method = "get";17             httprequestPost.ContentType = "application/Text/xml";18             ////生成响应对象19             HttpWebResponse res = (HttpWebResponse)httprequestPost.GetResponse();20             ////读取返回数据流(编码格式UFT8)21             Stream responseStream = null;22             if ("gzip".Equals(res.ContentEncoding))23             {24                 responseStream = new System.IO.Compression.GZipStream(res.GetResponseStream(), System.IO.Compression.CompressionMode.Decompress);25             }26             else if ("deflate".Equals(res.ContentEncoding))27             {28                 responseStream = new System.IO.Compression.DeflateStream(res.GetResponseStream(), System.IO.Compression.CompressionMode.Decompress);29             }30             else31             {32                 responseStream = res.GetResponseStream();33             }34             if (responseStream != null)35             {36                 StreamReader streamReader = new StreamReader(responseStream, Encoding.GetEncoding(res.CharacterSet));37                 html = streamReader.ReadToEnd().Trim();38             }39             //返回结果40             return html;41         }

 

.NET自动识别HttpWebResponse的编码及是否压缩