C#中关于Send WebRequest 方法和数据处理

   很久不更新博客了，这次大概说一下C#中的Send WebRequest，众所周知，.NET网络编程在测试中是非常常见的，具体来说，比如我们如果测试一个API，通过Send WebRequest的方式来进行API层面的功能测试，然后用Selenium完成前端的验证，这种模式应该说是比较方便而通用的，具体以其中最常见的HTTP request为例，当我们需要传输数据时，需要
1）地址：Address作为Webrequest参数实例化，然后设定相应属性，比如Method（Get还是Post等等）
2）数据：Data作为HttpRequest的数据流写入：

XmlResponse = null;
ResponseCode = HttpStatusCode.Unused;
ServerResponse = String.Empty;

参数处理部分
//Format the data
string output = data.Aggregate(String.Empty, (current, keyValuePair) => current + ("&" + keyValuePair.Key + "=" + HttpUtility.UrlEncode(keyValuePair.Value)));
var encoding = new UTF8Encoding();
//设置PostData变量将output进行处理，最终得到byte[] d作为最终数据写入到WebRequest中
var Postdata = Encoding.ASCII.GetBytes(output);
                byte[] d = encoding.GetBytes(output.Substring(1, output.Length - 1));

var address = TargetUrl;
//GET部分的数据处理
if (method.ToUpperInvariant() == "GET")
                    address=address+output;

//POST部分的数据处理
WebRequest request = WebRequest.Create(address) as HttpWebRequest;
//Add post process
if (request == null)
  throw new Exception("WebRequest object is null.");

request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = d.Length;

ServerResponse = String.Empty;

//数据读取及处理部分
using (Stream dataStream = request.GetRequestStream())
  {
     dataStream.Write(d, 0, d.Length);
     dataStream.Close();

     using (var response = (HttpWebResponse)request.GetResponse())
        {
          ResponseCode = response.StatusCode;
          using (Stream myStream = response.GetResponseStream())
            {
               if (myStream != null)
                            {
                                var readStream = new StreamReader(myStream, Encoding.UTF8);
                                ServerResponse = readStream.ReadToEnd();
                            }
                        }
                        response.Close();
            }
         }


                if (ResponseCode == HttpStatusCode.OK)
                {
                    if (loadXml)
                        LoadXml();
                    return true;
                }
                   
                return false;