public static string SendByGet(string url, Dictionary <string, string> formDataDict, string secretKey)
{
Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
formDataDict.Add("app_sign", Md5Util.getSignature(formDataDict, secretKey));
StringBuilder sb = new StringBuilder();
foreach (var key in formDataDict)
{
if (sb.ToString() != "")
{
sb.Append("&");
}
sb.AppendFormat("{0}={1}", key.Key, key.Value);
}
url += "?" + sb.ToString();
HttpWebRequest webRequest = (HttpWebRequest)HttpWebRequest.Create(url);
CookieContainer myCookieContainer = GetCookies();
webRequest.CookieContainer = myCookieContainer;
webRequest.KeepAlive = false;
webRequest.Method = "GET";
//处理响应信息
using (WebResponse myResp = webRequest.GetResponse())
{
Stream ReceiveStream = myResp.GetResponseStream();
StreamReader readStream = new StreamReader(ReceiveStream, encode);
Char[] read = new Char[256];
int count = readStream.Read(read, 0, 256);
string responseData = null;
while (count > 0)
{
responseData += new String(read, 0, count);
count = readStream.Read(read, 0, 256);
}
readStream.Close();
//cookie操作
var response = (HttpWebResponse)myResp;
try
{
for (int i = 0; i < response.Cookies.Count; i++)
{
if (HttpContext.Current.Response != null && response.Cookies[i].Value != null && response.Cookies[i].Value != "" &&
response.Cookies[i].Name != null && response.Cookies[i].Name != "")
{
System.IO.File.AppendAllText(HttpContext.Current.Server.MapPath("/logs/error.txt"), "\r\n get-method: " + i.ToString() + " " + response.Cookies[i].Name + "\r\n");
System.IO.File.AppendAllText(HttpContext.Current.Server.MapPath("/logs/error.txt"), "\r\n get-method: " + i.ToString() + " " + response.Cookies[i].Value + "\r\n");
if (HttpContext.Current.Response.Cookies[response.Cookies[i].Name].Value.Contains(","))
{
continue;
}
HttpContext.Current.Response.Cookies[response.Cookies[i].Name].Value = response.Cookies[i].Value;
}
//cookiestr += response.Cookies[i].Name + "=" + response.Cookies[i].Value.ToString()+"\r\n";
}
}
catch (Exception ee)
{
System.IO.File.AppendAllText(HttpContext.Current.Server.MapPath("/logs/error.txt"), "\r\n get-method: cookies set error: " + ee.Message + ee.StackTrace + "\r\n");
}
response.Close();
response = null;
myResp.Close();
//返回响应信息
return(responseData);
}
}
/**
* 支持参数和附件的post请求
*
**/
public static string SendByPost(string url, Dictionary <string, string> formDataDict, string[] filePathArray, string secretKey)
{
System.GC.Collect();
System.Net.ServicePointManager.DefaultConnectionLimit = 512;
try
{
Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
// 边界符
var boundary = "---------------" + DateTime.Now.Ticks.ToString("x");
// 最后的结束符
var endBoundary = Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n");
CookieContainer myCookieContainer = GetCookies();
HttpWebRequest webRequest = (HttpWebRequest)HttpWebRequest.Create(url);
webRequest.CookieContainer = myCookieContainer;
webRequest.Timeout = 10000;
//webRequest.KeepAlive = false;
webRequest.Method = "POST";
webRequest.ContentType = "multipart/form-data; boundary=" + boundary;
var memStream = new MemoryStream();
//添加文件信息
addFileInfo(memStream, filePathArray, boundary);
//生成sign并设置到参数里面
formDataDict.Add("app_sign", Md5Util.getSignature(formDataDict, secretKey));
//添加form参数信息
addFormData(memStream, formDataDict, boundary);
// 写入最后的结束边界符
memStream.Write(endBoundary, 0, endBoundary.Length);
//webRequest.ContentLength = memStream.Length; //系统会自动计算
//这个在Post的时候，一定要加上，如果服务器返回错误，他还会继续再去请求，不会使用之前的错误数据，做返回数据
webRequest.ServicePoint.Expect100Continue = false;
HttpRequestCachePolicy noCachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.NoCacheNoStore);
webRequest.CachePolicy = noCachePolicy;
var requestStream = webRequest.GetRequestStream();
//将post的信息设置到请求流里面
memStream.Position = 0;
var tempBuffer = new byte[memStream.Length];
memStream.Read(tempBuffer, 0, tempBuffer.Length);
memStream.Close();
requestStream.Write(tempBuffer, 0, tempBuffer.Length);
requestStream.Close();
string responseData = "";
//处理响应信息
//using (WebResponse myResp = webRequest.GetResponse())
using (HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse())
{
//var response = (HttpWebResponse)myResp;
if (response.StatusCode == HttpStatusCode.RequestTimeout)
{
System.IO.File.AppendAllText(HttpContext.Current.Server.MapPath("/logs/error.txt"), "\r\n [请求超时]\r\n");
Thread.Sleep(1000);
return(null);
}
Stream ReceiveStream = response.GetResponseStream();
StreamReader readStream = new StreamReader(ReceiveStream, encode);
Char[] read = new Char[256];
int count = readStream.Read(read, 0, 256);
while (count > 0)
{
responseData += new String(read, 0, count);
count = readStream.Read(read, 0, 256);
}
readStream.Close();
//cookie操作
//string cookiestr = "cookiestr:"; //debug
try
{
//System.IO.File.AppendAllText(HttpContext.Current.Server.MapPath("/logs/error.txt"), "\r\n cookies总数:" + response.Cookies.Count.ToString() + "\r\n");
for (int i = 0; i < response.Cookies.Count; i++)
{
if (response.Cookies[i].Name == "ASP.NET_SessionId")
{
continue;
}
if (HttpContext.Current.Response != null && response.Cookies[i].Value != null && response.Cookies[i].Value != "" &&
response.Cookies[i].Name != null && response.Cookies[i].Name != "")
{
//System.IO.File.AppendAllText(HttpContext.Current.Server.MapPath("/logs/error.txt"), "\r\n " + i.ToString() + " name:" + response.Cookies[i].Name + "\r\n");
HttpContext.Current.Response.Cookies[response.Cookies[i].Name].Value = response.Cookies[i].Value;
//System.IO.File.AppendAllText(HttpContext.Current.Server.MapPath("/logs/error.txt"), "\r\n " + i.ToString() + " value:" + response.Cookies[i].Value + "\r\n");
}
}
}
catch (Exception ee)
{
System.IO.File.AppendAllText(HttpContext.Current.Server.MapPath("/logs/error.txt"), "\r\n cookies set error: " + ee.Message + ee.StackTrace + "\r\n");
}
//debug
//System.IO.File.AppendAllText(HttpContext.Current.Server.MapPath("/logs/" + DateTime.Now.ToString("yyHHmmhhMMss") + ".txt"), cookiestr);
//
response.Close();
//返回响应信息
}
webRequest.Abort();
webRequest = null;
return(responseData);
}
catch (Exception e)
{
System.IO.File.AppendAllText(HttpContext.Current.Server.MapPath("/logs/error.txt"), e.Message + e.StackTrace + e.Source + e.TargetSite);
var json = new Json("10001", "访问API时发生错误,EROR:175 " + e.Message + e.TargetSite);
return(json.ToString());
}
}