[转]Web后台模拟前端post（带NTLM验证）

本文转自：http://www.cnblogs.com/pzstudyhard/p/4805885.html

using System.Data;

• using System.Net;
• using System.IO;
• using System.Net.Http;
• using System.Web;
• using System.Collections.Specialized;
• using System.Web.Script.Serialization;
• using System.Collections;
• public string ToPackageJson(DataTable dt) //封装Json
•         {
•             Dictionary<string, string> dic1 = new Dictionary<string, string>();
•             foreach (DataRow dr in dt.Rows)  
•            {
•                 foreach (DataColumn dc in dt.Columns)
•                 {
•                     dic1.Add(dc.ColumnName, dr[dc.ColumnName].ToString());  
•                }
•             }
•             Dictionary<string, object> dic2 = new Dictionary<string, object>();
•             dic2.Add(dt.TableName, dic1);
•             JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer();
•             javaScriptSerializer.MaxJsonLength = Int32.MaxValue; //取得最大数值
•             return javaScriptSerializer.Serialize(dic2); //返回一个json字符串　　{"dt.TableName":{"列名1":"列值1","列名2":"列值2","列名n":"列值n"}}
•         }
• public string ToPost(string postURL,string NTLM_UserName,string NTML_PassWord,DataTable dtToPost)       
•   　　{
• 　　　　//封装Json
•           　string strJson = ToPackageJson(dtToPost);
•             //通过NTLM验证
• 　　　　//1、创建空白的网站证书缓存
•             System.Net.CredentialCache MyCredentialCache = new System.Net.CredentialCache();
• 　　　　//指定以b2c用户通过NTLM身份验证
•             MyCredentialCache.Add(new System.Uri(postURL), "NTLM", new System.Net.NetworkCredential(NTLM_UserName, NTML_PassWord));
•             HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(postURL);
•             httpWebRequest.Credentials = MyCredentialCache;  
•            httpWebRequest.Method = "POST";  
•            httpWebRequest.ContentType = "application/json;charset=UTF-8";
•             //将Json字符串转化为字节
•             byte[] postDataByte = Encoding.UTF8.GetBytes(strJson);
•             httpWebRequest.ContentLength = postDataByte.Length;
•             httpWebRequest.AllowAutoRedirect = false;
•             httpWebRequest.KeepAlive = true;
•             httpWebRequest.ContentLength = postDataByte.Length;
•             //获取用于写入请求数据的Stream对象  
•            Stream writer = httpWebRequest.GetRequestStream();
•             //将请求参数写入流  
•            writer.Write(postDataByte, 0, postDataByte.Length);
•             //关闭请求流  
•            writer.Close();  
•            //http响应所返回的字符流   
•           string responseResult = "";
•             HttpWebResponse response = null;
•            try  
•            {  
•                //获取http返回的响应流  
•                response = (HttpWebResponse)httpWebRequest.GetResponse();  
•            }
•            catch (WebException ex)
•            {                
• 　　　　　　response = (HttpWebResponse)ex.Response;
•            }  
•            //读取响应流内容
•             StreamReader sr = new StreamReader(response.GetResponseStream());
•             responseResult = sr.ReadToEnd();
•             //关闭读取器
•             sr.Close();
•             return responseResult;  
•        }