.net 模拟GET或者POST请求 传参URL和获取返回值

简单GET请求：

string url = "http://i******com.cn/fcps-uat/rest/eip/eipNotice?inputJson=";                    System.Net.WebRequest wrq = System.Net.WebRequest.Create(url + strparam);                    wrq.Method = "GET";                    System.Net.WebResponse wrp = wrq.GetResponse();                    System.IO.StreamReader sr = new System.IO.StreamReader(wrp.GetResponseStream(), System.Text.Encoding.GetEncoding("UTF-8"));                    strResult = sr.ReadToEnd();#region 通讯函数 /// <summary>/// 通讯函数/// </summary>/// <param name="url">请求Url</param>/// <param name="para">请求参数</param>/// <param name="method">请求方式GET/POST</param>/// <returns></returns>public static string SendRequest(string url, string para, string method){string strResult = "";if (url == null || url == "")return null;if (method == null || method == "")method = "GET";// GET方式if (method.ToUpper() == "GET"){try{System.Net.WebRequest wrq = System.Net.WebRequest.Create(url + para);wrq.Method = "GET";ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;System.Net.WebResponse wrp = wrq.GetResponse();System.IO.StreamReader sr = new System.IO.StreamReader(wrp.GetResponseStream(), System.Text.Encoding.GetEncoding("gb2312"));strResult = sr.ReadToEnd();}catch (Exception ex){return ex.Message;}}// POST方式if (method.ToUpper() == "POST"){if (para.Length > 0 && para.IndexOf('?') == 0){para = para.Substring(1);}WebRequest req = WebRequest.Create(url);req.Method = "POST";req.ContentType = "application/x-www-form-urlencoded";ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;StringBuilder UrlEncoded = new StringBuilder();Char[] reserved = { '?', '=', '&' };byte[] SomeBytes = null;if (para != null){int i = 0, j;while (i < para.Length){j = para.IndexOfAny(reserved, i);if (j == -1){UrlEncoded.Append(HttpUtility.UrlEncode(para.Substring(i, para.Length - i), System.Text.Encoding.GetEncoding("gb2312")));break;}UrlEncoded.Append(HttpUtility.UrlEncode(para.Substring(i, j - i), System.Text.Encoding.GetEncoding("gb2312")));UrlEncoded.Append(para.Substring(j, 1));i = j + 1;}SomeBytes = Encoding.Default.GetBytes(UrlEncoded.ToString());req.ContentLength = SomeBytes.Length;Stream newStream = req.GetRequestStream();newStream.Write(SomeBytes, 0, SomeBytes.Length);newStream.Close();}else{req.ContentLength = 0;}try{WebResponse result = req.GetResponse();Stream ReceiveStream = result.GetResponseStream();Byte[] read = new Byte[512];int bytes = ReceiveStream.Read(read, 0, 512);while (bytes > 0){// 注意：// 下面假定响应使用 UTF-8 作为编码方式。// 如果内容以 ANSI 代码页形式（例如，932）发送，则使用类似下面的语句：// Encoding encode = System.Text.Encoding.GetEncoding("shift-jis");Encoding encode = System.Text.Encoding.GetEncoding("gb2312");strResult += encode.GetString(read, 0, bytes);bytes = ReceiveStream.Read(read, 0, 512);}return strResult;}catch (Exception ex){return ex.Message;}}return strResult;}#endregion#region 简化通讯函数/// <summary>/// GET方式通讯/// </summary>/// <param name="url"></param>/// <param name="para"></param>/// <returns></returns>public static string SendRequest(string url, string para){return SendRequest(url, para, "GET");}#endregion