/// <summary>
/// 添加字段到已有的Content
/// 要求content-type为application/x-www-form-urlencoded
/// </summary>
/// <param name="keyValues">键值对</param>
/// <exception cref="NotSupportedException"></exception>
/// <returns></returns>
public async Task AddFormFieldAsync(IEnumerable <KeyValuePair <string, string> > keyValues)
{
this.EnsureNotGetOrHead();
this.EnsureMediaTypeEqual(UrlEncodedContent.MediaType);
if (keyValues == null)
{
return;
}
var formContent = await UrlEncodedContent.FromHttpContentAsync(this.Content).ConfigureAwait(false);
await formContent.AddFormFieldAsync(keyValues).ConfigureAwait(false);
this.Content = formContent;
}
/// <summary>
/// 添加字段到已有的Content
/// 要求content-type为application/x-www-form-urlencoded
/// </summary>
/// <param name="keyValues">键值对</param>
/// <exception cref="NotSupportedException"></exception>
/// <returns></returns>
public async Task AddFormFieldAsync(IEnumerable <KeyValuePair <string, string> > keyValues)
{
this.EnsureNotGetOrHead();
this.EnsureMediaTypeEqual(UrlEncodedContent.MediaType);
if (keyValues == null)
{
return;
}
var formContent = this.Content as UrlEncodedContent;
if (formContent == null)
{
formContent = new UrlEncodedContent(this.Content);
}
await formContent.AddFormFieldAsync(keyValues);
this.Content = formContent;
}
/// <summary>
/// 从HttpContent转换得到
/// </summary>
/// <param name="httpContent">httpContent实例</param>
/// <param name="disposeHttpContent">是否释放httpContent</param>
/// <returns></returns>
public static async Task <UrlEncodedContent> FromHttpContentAsync(HttpContent httpContent, bool disposeHttpContent = true)
{
if (httpContent == null)
{
return(new UrlEncodedContent());
}
if (httpContent is UrlEncodedContent urlEncodedContent)
{
return(urlEncodedContent);
}
urlEncodedContent = new UrlEncodedContent();
var byteArray = await httpContent.ReadAsByteArrayAsync().ConfigureAwait(false);
await urlEncodedContent.AddByteArrayAsync(byteArray).ConfigureAwait(false);
if (disposeHttpContent == true)
{
httpContent.Dispose();
}
return(urlEncodedContent);
}