private void btnOk_Click(object sender, EventArgs e)
{
m_to = this.txtTo.Text.Trim();
m_cc = this.txtCC.Text.Trim();
m_bcc = this.txtBcc.Text.Trim();
m_Subject = this.txtSubject.Text.Trim();
m_Body = this.rtbBody.Text;
bool isAsync = this.chbAsync.Checked;
bool isReuse = this.cbxReuse.Checked;
this.rtbReply.AppendText(String.Format("==============={0},{1}{2}"
, (isAsync ? "异步发送" : "同步发送"), (isReuse ? "重用SmtpClient实例" : "新SmtpClient实例"), Environment.NewLine));
watch.Reset();
watch.Start();
// DateTime.Now.ToLongTimeString()
if (this.rdoOne.Checked)
{
#region 实验一：单条邮件同步和异步发送（可通过添加大附件来观察同步异步效果）
MailHelper mail = new MailHelper(isAsync);
#region 发送单封邮件 中 加入图片链接示例。
// 发送单封邮件 中 加入图片链接示例。
string picPath = Environment.CurrentDirectory + "\\附件\\PIC_Mail中文.png";
mail.AddInlineAttachment(picPath, "MyPic");
// 注意内联图片地址写法 cid:ContentId
m_Body = m_Body + "<br/><img src=\"cid:MyPic\" /><a href=\"cid:MyPic\" target=\"_blank\">点击在新窗口打开图片</a>";
#endregion
if (isAsync)
{
this.SendMessageAsync(mail, true, "实验一", "单条", true, isReuse);
}
else
{
this.SendMessage(mail, true, "实验一", "单条", true, isReuse);
}
#endregion
}
else if (this.rdoTwo.Checked)
{
#region 实验二：批量邮件同步和异步发送（单个线程，单个SmtpClient实例，SendAsync()）
long count = long.Parse(this.cbbNumber.Text);
MailHelper mail = new MailHelper(isAsync);
if (isReuse)
{
if (isAsync)
{
for (long i = 1; i <= count; i++)
{
this.SendMessageAsync(mail, false, "实验二", "第" + i + "条", true, true);
}
mail.SetBatchMailCount(count);
}
else
{
for (long i = 1; i <= count; i++)
{
this.SendMessage(mail, false, "实验二", "第" + i + "条", true, true);
}
mail.SetBatchMailCount(count);
}
}
else
{
if (isAsync)
{
for (long i = 1; i <= count; i++)
{
this.SendMessageAsync(mail, true, "实验二", "第" + i + "条", true, false);
}
}
else
{
for (long i = 1; i <= count; i++)
{
this.SendMessage(mail, true, "实验二", "第" + i + "条", true, false);
}
}
}
#endregion
}
else if (this.rdoThree.Checked)
{
#region 实验三：批量邮件同步和异步发送 （平行类库Parallel（自动分区），每个分区一个MailHelper、SmtpClient实例，SendAsync()）
long count = long.Parse(this.cbbNumber.Text);
if (count != 1)
{
int fenzu = 0;
long sendCount = 0;
#region 由系统负荷自动分配最大并发度
// Environment.ProcessorCount; 并行度设置过大会导致资源争用问题，效率不高
// ParallelOptions parallelOptions = new ParallelOptions();
// parallelOptions.MaxDegreeOfParallelism = Environment.ProcessorCount;
#endregion
ParallelOptions parallelOptions = new ParallelOptions();
// 用一半的线程，因为内部发邮件需要线程池线程
parallelOptions.MaxDegreeOfParallelism = (int)Math.Ceiling((double)Environment.ProcessorCount / 2d);
Parallel.For <ParallelInitObj>(1, count + 1
, parallelOptions, () =>
{
Interlocked.Increment(ref fenzu);
Debug.WriteLine("开始一个分组，当前分组数为：" + fenzu.ToString());
ParallelInitObj initObj = new ParallelInitObj()
{
mail = new MailHelper(isAsync),
SumCount = 0,
};
return(initObj);
}
, (i, loop, initObj) =>
{
ParallelInitObj curInitObj = initObj;
MailHelper mail = curInitObj.mail;
Interlocked.Increment(ref sendCount);
string shiyan = String.Format("({0})实验三", Thread.CurrentThread.ManagedThreadId);
if (isReuse)
{
if (isAsync)
{
this.SendMessageAsync(mail, false, shiyan, "第" + Thread.VolatileRead(ref sendCount) + "条", true, true);
curInitObj.SumCount++;
}
else
{
this.SendMessage(mail, false, shiyan, "第" + Thread.VolatileRead(ref sendCount) + "条", true, true);
curInitObj.SumCount++;
}
}
else
{
if (isAsync)
{
this.SendMessageAsync(mail, true, shiyan, "第" + Thread.VolatileRead(ref sendCount) + "条", true, false);
}
else
{
this.SendMessage(mail, true, shiyan, "第" + Thread.VolatileRead(ref sendCount) + "条", true, false);
}
}
return(curInitObj);
}
, (initObj) =>
{
ParallelInitObj curInitObj = initObj;
if (isReuse)
{
curInitObj.mail.SetBatchMailCount(curInitObj.SumCount);
}
Interlocked.Decrement(ref fenzu);
Debug.WriteLine("结束一个分组，当前分组数为：" + fenzu.ToString());
});
}
else
{
MessageBox.Show("分区发邮件不能为一封");
}
#endregion
}
else if (this.rdoFour.Checked)
{
#region 实验四：批量邮件同步和异步发送 （平行类库Parallel（手动分区），每个分区一个MailHelper、SmtpClient实例）
long count = long.Parse(this.cbbNumber.Text);
if (count != 0)
{
int fenzu = 0;
long sendCount = 0;
#region 由系统负荷自动分配最大并发度
// OrderablePartitioner<Tuple<long, long>> orderPartition = Partitioner.Create(1, count + 1, Environment.ProcessorCount);
// ParallelOptions parallelOptions = new ParallelOptions();
// parallelOptions.MaxDegreeOfParallelism = (int)Math.Ceiling((double)Environment.ProcessorCount);
#endregion
OrderablePartitioner <Tuple <long, long> > orderPartition = Partitioner.Create(1, count + 1, (count / (int)Math.Ceiling((double)Environment.ProcessorCount / 2d)));
ParallelOptions parallelOptions = new ParallelOptions();
parallelOptions.MaxDegreeOfParallelism = (int)Math.Ceiling((double)Environment.ProcessorCount / 2d);
Parallel.ForEach <Tuple <long, long>, ParallelInitObj>(orderPartition,
parallelOptions, () =>
{
Interlocked.Increment(ref fenzu);
Debug.WriteLine("开始一个分组，当前分组数为：" + fenzu.ToString());
ParallelInitObj initObj = new ParallelInitObj()
{
mail = new MailHelper(),
SumCount = 0,
};
return(initObj);
}
, (source, loop, loopIndex, initObj) =>
{
ParallelInitObj curInitObj = initObj;
MailHelper mail = curInitObj.mail;
string shiyan = String.Format("({0})实验四", Thread.CurrentThread.ManagedThreadId);
for (long i = source.Item1; i < source.Item2; i++)
{
Interlocked.Increment(ref sendCount);
if (isReuse)
{
if (isAsync)
{
this.SendMessageAsync(mail, false, shiyan, "第" + Thread.VolatileRead(ref sendCount) + "条", true, true);
curInitObj.SumCount++;
}
else
{
this.SendMessage(mail, false, shiyan, "第" + Thread.VolatileRead(ref sendCount) + "条", true, true);
curInitObj.SumCount++;
}
}
else
{
if (isAsync)
{
this.SendMessageAsync(mail, true, shiyan, "第" + Thread.VolatileRead(ref sendCount) + "条", true, false);
}
else
{
this.SendMessage(mail, true, shiyan, "第" + Thread.VolatileRead(ref sendCount) + "条", true, false);
}
}
}
return(curInitObj);
}
, (initObj) =>
{
ParallelInitObj curInitObj = initObj;
if (isReuse)
{
curInitObj.mail.SetBatchMailCount(curInitObj.SumCount);
}
Interlocked.Decrement(ref fenzu);
Debug.WriteLine("结束一个分组，当前分组数为：" + fenzu.ToString());
});
}
else
{
MessageBox.Show("分区发邮件不能为一封");
}
#endregion
}
}