/// <summary>
/// 根据传入的参数，得到相应Http请求数据（唯一公开方法）
/// </summary>
/// <param name="item">参数类对象</param>
/// <returns>返回HttpResult类型</returns>
public HttpResult GetHttpRequestData(HttpRequestParam item)
{
////返回参数
HttpResult result = new HttpResult();
try
{
try
{
////准备参数
this.SetRequest(item);
}
catch (Exception ex)
{
// 注释掉，业务层捕获异常，可以根据网络异常重试
return new HttpResult() { Cookie = string.Empty, Header = null, Html = ex.Message, StatusDescription = "出现异常：" + ex.Message };
throw ex;
}
try
{
////请求数据
using (this.response = (HttpWebResponse)this.request.GetResponse())
{
this.GetData(item, result);
}
}
catch (Exception ex)
{
result.Html = ex.ToString();
LogManager.Log.WriteAppException(new AppException("获取返回数据异常", ex, ExceptionLevel.Info));
throw ex;
}
}
finally
{
if (item.IsWriteLog)
{
MInteractionParam param = new MInteractionParam()
{
DicContext = null,
Module = "HttpHelper",
Key1 = item.ProxyBusinessName,
Key2 = item.Method.ToUpper(),
SendAddress = item.URL,
SendContent = this.GetRequestInfo(item),
ReceiveContent = result.Html,
Message = this.GetRequestProxy(item),
};
LogManager.Log.InteractionLog(param);
}
this.AbortRequest();
}
return result;
}
/// <summary>
/// 设置编码
/// </summary>
/// <param name="item">HttpItem</param>
/// <param name="result">HttpResult</param>
/// <param name="responseByte">byte[]</param>
private void SetEncoding(HttpRequestParam item, HttpResult result, byte[] responseByte)
{
////是否返回Byte类型数据
if (item.ResultType == ResultType.Byte)
{
result.ResultByte = responseByte;
}
if (item.Encoding == null)
{
Match meta = Regex.Match(Encoding.Default.GetString(responseByte), "<meta[^<]*charset=([^<]*)[\"']", RegexOptions.IgnoreCase);
string c = string.Empty;
if (meta != null && meta.Groups.Count > 0)
{
c = meta.Groups[1].Value.ToLower().Trim();
}
if (c.Length > 2)
{
try
{
item.Encoding = Encoding.GetEncoding(c.Replace("\"", string.Empty).Replace("'", string.Empty).Replace(";", string.Empty).Replace("iso-8859-1", "gbk").Trim());
}
catch
{
if (string.IsNullOrEmpty(this.response.CharacterSet))
{
item.Encoding = Encoding.UTF8;
}
else
{
item.Encoding = Encoding.GetEncoding(this.response.CharacterSet);
}
}
}
else
{
if (string.IsNullOrEmpty(this.response.CharacterSet))
{
item.Encoding = Encoding.UTF8;
}
else
{
item.Encoding = Encoding.GetEncoding(this.response.CharacterSet);
}
}
}
if (item.Encoding == null)
{
item.Encoding = Encoding.UTF8;
}
}
/// <summary>
/// 获取数据的并解析的方法
/// </summary>
/// <param name="item">The item.</param>
/// <param name="result">The result.</param>
private void GetData(HttpRequestParam item, HttpResult result)
{
////获取StatusCode
result.StatusCode = this.response.StatusCode;
////获取StatusDescription
result.StatusDescription = this.response.StatusDescription;
////获取Headers
result.Header = this.response.Headers;
////获取重定向路径
if (this.response.ResponseUri != null && this.response.ResponseUri.ToString() != item.URL)
{
result.ResponseUrl = this.response.ResponseUri.ToString();
}
////获取CookieCollection
if (item.ResultCookieType == ResultCookieType.CookieCollection && this.request.CookieContainer != null)
{
result.CookieCollection = this.request.CookieContainer.GetCookies(this.request.RequestUri);
}
////获取set-cookie
if (this.response.Headers["set-cookie"] != null)
{
result.Cookie = this.ProcessCookies(item.Cookie, this.response.Headers["set-cookie"]);
}
////处理网页Byte
byte[] responseByte = this.GetByte();
if (responseByte != null && responseByte.Length > 0)
{
////设置编码
this.SetEncoding(item, result, responseByte);
////得到返回的HTML
result.Html = item.Encoding.GetString(responseByte);
}
else
{
////没有返回任何Html代码
result.Html = string.Empty;
}
}
