HttpWebRequest和HttpWebResponse用法小结

复制代码 代码如下:

/// <summary>
/// 报告系统错误
/// </summary>
/// <param></param>
/// <returns></returns>
public static string Sys_ReportError(Exception ex)
{
try
{
//要提交表单的URI字符串
string uriString = "http://localhost/Sys_ReportError.aspx";
HttpContext context = HttpContext.Current;
if (context == null) return string.Empty;
string targetSite = ex.TargetSite.ToString();
string stackTrace = ex.StackTrace;
string friendlyMsg = ex.Message;
string errorPage = context == null || context.Request == null ? "" : context.Request.Url.ToString();
string projectName = Config.Sys_Title();
//要提交的字符串数据
string postString = "targetSite=" + HttpUtility.UrlEncode(targetSite);
postString += "&stackTrace=" + HttpUtility.UrlEncode(stackTrace);
postString += "&friendlyMsg=" + HttpUtility.UrlEncode(friendlyMsg);
postString += "&errorPage=" + HttpUtility.UrlEncode(errorPage);
postString += "&projectName=" + HttpUtility.UrlEncode(projectName);
postString += "&key=" + "";
HttpWebRequest webRequest = null;
StreamWriter requestWriter = null;
string responseData = "";
webRequest = System.Net.WebRequest.Create(uriString) as HttpWebRequest;
webRequest.Method = "POST";
webRequest.ServicePoint.Expect100Continue = false;
webRequest.Timeout = 1000 * 60;
webRequest.ContentType = "application/x-www-form-urlencoded";
//POST the data.
requestWriter = new StreamWriter(webRequest.GetRequestStream());
try
{
requestWriter.Write(postString);
}
catch (Exception ex2)
{
return "连接错误";
}
finally
{
requestWriter.Close();
requestWriter = null;
}
responseData = WebResponseGet(webRequest);
webRequest = null;
return responseData;
}
catch
{
return "未知错误";
}
}

复制代码 代码如下:

/// <summary>
/// Process the web response.
/// </summary>
/// <param>The request object.</param>
/// <returns>The response data.</returns>
public static string WebResponseGet(HttpWebRequest webRequest)
{
StreamReader responseReader = null;
string responseData = "";
try
{
responseReader = new StreamReader(webRequest.GetResponse().GetResponseStream());
responseData = responseReader.ReadToEnd();
}
catch
{
return "连接错误";
}
finally
{
webRequest.GetResponse().GetResponseStream().Close();
responseReader.Close();
responseReader = null;
}
return responseData;
}

复制代码 代码如下:

_context = HttpContext.Current;
Stream stream = _context.Request.InputStream; //获取当前传入Http输入流
long length = stream.Length;
byte[] data = _context.Request.BinaryRead((int)length);//对当前输入流进行指定字节数的二进制读取
string strContent = Encoding.UTF8.GetString(data);//解码为UTF8编码形式的字符串

复制代码 代码如下:

HttpWebResponse res = null;
WebResponse response = null;
try
{
WebResponse response = webRequest.GetResponse();
}
catch (WebException ex1)
{
res = (HttpWebResponse)ex1.Response;
}
finally
{
StreamReader sr = new StreamReader(res.GetResponseStream(), Encoding.UTF8);
string strhtml = sr.ReadToEnd();
HttpContext.Current.Response.Write(strhtml);
}