SVN r1234

SVN-Revision: r1234

插件库/Lskj.Util/HttpHelper.cs

@@ -12,6 +12,9 @@ namespace Lskj.Util
 {
     public static class HttpHelper
     {
+        private const int RequestTimeout = 120000;
+        private const int Tls12 = 3072;
+
         public enum Encode
         {
             Default = 0,
@@ -28,6 +31,76 @@ namespace Lskj.Util
             UserAgent = userAgent;
             EncodeMode = encode;
         }
+
+        private static void ConfigureTransport()
+        {
+            try
+            {
+                ServicePointManager.SecurityProtocol |= (SecurityProtocolType)Tls12;
+                ServicePointManager.Expect100Continue = false;
+                if (ServicePointManager.DefaultConnectionLimit < 20)
+                {
+                    ServicePointManager.DefaultConnectionLimit = 20;
+                }
+            }
+            catch
+            {
+            }
+        }
+
+        private static void ConfigureRequest(HttpWebRequest request)
+        {
+            request.Timeout = RequestTimeout;
+            request.ReadWriteTimeout = RequestTimeout;
+            request.KeepAlive = false;
+            request.ServicePoint.Expect100Continue = false;
+            request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
+        }
+
+        private static string BuildExceptionMessage(Exception ex)
+        {
+            StringBuilder builder = new StringBuilder();
+            builder.Append(ex.Message);
+            if (ex.InnerException != null)
+            {
+                builder.AppendFormat("; Inner={0}", ex.InnerException.Message);
+            }
+            return builder.ToString();
+        }
+
+        private static string BuildWebExceptionMessage(WebException ex)
+        {
+            StringBuilder builder = new StringBuilder();
+            builder.Append(BuildExceptionMessage(ex));
+            builder.AppendFormat("; Status={0}", ex.Status);
+
+            HttpWebResponse response = ex.Response as HttpWebResponse;
+            if (response != null)
+            {
+                builder.AppendFormat("; HttpStatus={0} {1}", (int)response.StatusCode, response.StatusDescription);
+                try
+                {
+                    Stream responseStream = response.GetResponseStream();
+                    if (responseStream != null)
+                    {
+                        using (StreamReader streamReader = new StreamReader(responseStream, Encoding.UTF8))
+                        {
+                            string responseText = streamReader.ReadToEnd();
+                            if (!string.IsNullOrEmpty(responseText))
+                            {
+                                builder.AppendFormat("; Response={0}", responseText);
+                            }
+                        }
+                    }
+                }
+                catch
+                {
+                }
+            }
+
+            return builder.ToString();
+        }
+
         /// <summary>
         /// post数据到指定的网址，获取cookie数据，和返回页
         /// </summary>
@@ -37,7 +110,9 @@ namespace Lskj.Util
             try
             {
                 HttpWebRequest httpWebRequest;
+                ConfigureTransport();
                 httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);
+                ConfigureRequest(httpWebRequest);
 
                 httpWebRequest.ContentType = ContentType;
                 httpWebRequest.Accept = Accept;
@@ -105,10 +180,16 @@ namespace Lskj.Util
 
                 return httpWebResponse;
             }
+            catch (WebException ex)
+            {
+                Console.WriteLine(ex.ToString());
+                result = BuildWebExceptionMessage(ex);
+                return httpWebResponse;
+            }
             catch (Exception ex)
             {
-                Console.WriteLine(ex.Message);
+                Console.WriteLine(ex.ToString());
-                result = ex.Message;
+                result = BuildExceptionMessage(ex);
                 return httpWebResponse;
             }
         }
@@ -134,7 +215,9 @@ namespace Lskj.Util
                     }
                 }
                 HttpWebRequest httpWebRequest;
+                ConfigureTransport();
                 httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(builder.ToString());
+                ConfigureRequest(httpWebRequest);
                 httpWebRequest.ContentType = ContentType;
                 //httpWebRequest.Referer = url;
                 httpWebRequest.Accept = Accept;
@@ -163,10 +246,16 @@ namespace Lskj.Util
 
                 return httpWebResponse;
             }
+            catch (WebException ex)
+            {
+                Console.WriteLine(ex.ToString());
+                result = BuildWebExceptionMessage(ex);
+                return httpWebResponse;
+            }
             catch (Exception ex)
             {
-                Console.WriteLine(ex.Message);
+                Console.WriteLine(ex.ToString());
-                result = ex.Message;
+                result = BuildExceptionMessage(ex);
                 return httpWebResponse;
             }
         }
@@ -186,7 +275,9 @@ namespace Lskj.Util
             {
                 string boundary = "----WebKitFormBoundary" + DateTime.Now.Ticks.ToString("x");
 
+                ConfigureTransport();
                 HttpWebRequest httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);
+                ConfigureRequest(httpWebRequest);
                 httpWebRequest.Method = "POST";
                 httpWebRequest.Accept = Accept;
                 httpWebRequest.UserAgent = UserAgent;
@@ -231,10 +322,16 @@ namespace Lskj.Util
 
                 return httpWebResponse;
             }
+            catch (WebException ex)
+            {
+                Console.WriteLine(ex.ToString());
+                result = BuildWebExceptionMessage(ex);
+                return httpWebResponse;
+            }
             catch (Exception ex)
             {
-                Console.WriteLine(ex.Message);
+                Console.WriteLine(ex.ToString());
-                result = ex.Message;
+                result = BuildExceptionMessage(ex);
                 return httpWebResponse;
             }
         }