因此,以下代码用于在 .NET 4 中获取 System.Net.Mail.MailMessage 对象作为 MemoryStream,但是随着 .NET 4.5 beta 的发布,出现了运行时异常。
Assembly assembly = typeof(SmtpClient).Assembly;
Type mailWriterType = assembly.GetType("System.Net.Mail.MailWriter");
using (MemoryStream stream = new MemoryStream())
{
ConstructorInfo mailWriterContructor = mailWriterType.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic, null, new[] { typeof(Stream) }, null);
object mailWriter = mailWriterContructor.Invoke(new object[] { stream });
MethodInfo sendMethod = typeof(MailMessage).GetMethod("Send", BindingFlags.Instance | BindingFlags.NonPublic);
sendMethod.Invoke(message, BindingFlags.Instance | BindingFlags.NonPublic, null, new[] { mailWriter, true }, null);
.....
}
sendMethod.Invoke() 发生运行时异常。
最佳答案
设法弄清楚如何在 .NET 4.5 beta 中让它再次工作。 MailMessage 中的私有(private) API Send() 方法已更改为: internal void Send(BaseWriter writer, bool sendEnvelope, bool allowUnicode)
请在下面找到更新的代码。
Assembly assembly = typeof(SmtpClient).Assembly;
Type mailWriterType = assembly.GetType("System.Net.Mail.MailWriter");
using (MemoryStream stream = new MemoryStream())
{
ConstructorInfo mailWriterContructor = mailWriterType.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic, null, new[] { typeof(Stream) }, null);
object mailWriter = mailWriterContructor.Invoke(new object[] { stream });
MethodInfo sendMethod = typeof(MailMessage).GetMethod("Send", BindingFlags.Instance | BindingFlags.NonPublic);
sendMethod.Invoke(message, BindingFlags.Instance | BindingFlags.NonPublic, null, new[] { mailWriter, true, true }, null);
.....
}
关于c# - 在 .NET 4.5 beta 中获取 System.Net.Mail.MailMessage 作为 MemoryStream,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9595440/