/// <summary>
/// 转换key/value数组为byte数组。
/// </summary>
/// <param name="nameValueCollection">key/value数组</param>
/// <returns></returns>
private static byte[] GetContentByteArray(IEnumerable <KeyValuePair <string, object> > nameValueCollection)
{
if (nameValueCollection == null)
{
throw new ArgumentNullException("nameValueCollection");
}
StringBuilder stringBuilder = new StringBuilder();
foreach (KeyValuePair <string, object> current in nameValueCollection)
{
if (stringBuilder.Length > 0)
{
stringBuilder.Append('&');
}
stringBuilder.Append(FormUrlEncodedContentEx.Encode(current.Key));
stringBuilder.Append('=');
if (current.Value is string)
{
stringBuilder.Append(StringifyValue(current.Value));
}
else
{
stringBuilder.Append(CoreUtil.GetObjTranNull <string>(current.Value).ToLower());
}
}
return(Encoding.UTF8.GetBytes(stringBuilder.ToString()));
}
/// <summary>
/// 对象转字符
/// </summary>
/// <param name="value">对象实例</param>
/// <returns></returns>
private static string StringifyValue(object value)
{
if (value is string)
{
return(FormUrlEncodedContentEx.Encode((string)value));
}
else if (value is IEnumerable <string> )//集合对象类型。
{
StringBuilder sb = new StringBuilder();
bool firstElement = true;
sb.Append("[");
foreach (string item in (IEnumerable <string>)value)
{
if (firstElement)
{
firstElement = false;
}
else
{
sb.Append(",");
}
sb.Append("\"");
sb.Append(FormUrlEncodedContentEx.Encode(item));
sb.Append("\"");
}
sb.Append("]");
return(sb.ToString());
}
else
{
throw new InvalidOperationException("FormUrlEncodedContentEx cannot handle " + value.GetType().ToString() + " values");
}
}
/// <summary>
/// Initializes a new instance of the FormUrlEncodedContentEx class with a specific collection of name/value pairs.
/// </summary>
/// <param name="nameValueCollection">A collection of name/value pairs.</param>
public FormUrlEncodedContentEx(IEnumerable <KeyValuePair <string, object> > nameValueCollection) : base(FormUrlEncodedContentEx.GetContentByteArray(nameValueCollection))
{
base.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
}