利用邮件对象实现发送QQ日志以及检测用户是否开通SMTP功能
本文介绍两个QQ应用中有意思的小功能，都是基于邮件对象实现的功能，一个是利用.NET 内置类MailMessage来实现日志发送功能，一个是利用Lumisoft.NET组件类来检测用户是否开通了SMTP功能。
想看看两个功能的实现效果。
编辑并发送QQ日志的代码很简单，就是简单利用MailMessage对象来实现的，类似发送邮件一样，详细代码如下所示：
try
{
MailMessage mail
=
new
MailMessage();
mail.From
=
new
MailAddress(
string
.Format(
"
{0}@qq.com
"
, Portal.gc.QQ));
mail.To.Add(
new
MailAddress(
string
.Format(
"
{0}@qzone.qq.com
"
, Portal.gc.QQ)));
string
title
=
this
.txtTitle.Text;
if
(
!
string
.IsNullOrEmpty(title))
{
title
=
string
.Format(
"
[{0}]{1}
"
,
this
.txtCategory.Text,
this
.txtTitle.Text);
}
mail.Subject
=
title;
mail.Body
=
this
.txtContent.Text;
SmtpClient client
=
new
SmtpClient(
"
smtp.qq.com
"
,
25
);
client.Credentials
=
new
NetworkCredential(Portal.gc.QQ, Portal.gc.QQPass);
client.Send(mail);
MessageExUtil.ShowTips(
"
QQ留言发表成功！
"
);
this
.txtTitle.Clear();
this
.txtContent.Clear();
}
catch
(Exception ex)
{
LogTextHelper.WriteLine(ex.ToString());
MessageExUtil.ShowError(ex.Message);
}
批量检查开通SMTP功能的代码如下所示：
private
void
StartAtClick(
object
obj)
{
if
(
this
.dg.Rows.Count
==
0
||
this
.dg.SelectedRows.Count
==
0
)
{
SetTips(
"
请先输入资料，并选定一个开始
"
);
return
;
}
string
selectQQ
=
""
;
foreach
(DataGridViewRow row
in
this
.dg.SelectedRows)
{
selectQQ
=
row.Cells[
"
账号
"
].Value.ToString();
break
;
}
QQDict.Clear();
QQList.Clear();
foreach
(DataGridViewRow row
in
this
.dg.Rows)
{
string
=
row.Cells[
"
账号
"
].Value.ToString();
string
pass
=
row.Cells[
"
密码
"
].Value.ToString();
if
(
!
string
.IsNullOrEmpty(qq)
&&
!
QQDict.ContainsKey(qq))
{
QQDict.Add(qq, pass);
QQList.Add(qq);
}
}
int
current
=
QQList.IndexOf(selectQQ);
if
(QQDict.Count
>
0
&&
current
>=
0
)
{
isStart
=
true
;
currentIndex
=
current;
StartQQAt();
}
}
private
void
StartQQAt()
{
if
(
!
isStart
||
QQDict.Count
==
0
)
return
;
if
(currentIndex
>=
QQDict.Count)
{
isStart
=
false
;
SetTips(
"
已经是最后一个QQ
"
);
return
;
}
string
=
QQList[currentIndex];
string
pass
=
QQDict[qq];
if
(
!
string
.IsNullOrEmpty(qq))
{
CallCtrlWithThreadSafety.SetText(
this
.lblOperateTips,
string
.Format(
"
正在处理QQ[{0}]...
"
, qq),
this
);
CallCtrlWithThreadSafety.SetText(
this
.txtQQNumber, qq,
this
);
Application.DoEvents();
Thread.Sleep(
100
);
CheckSmtpOpen(qq, pass);
}
}
private
void
CheckSmtpOpen(
string
user,
string
pass)
{
bool
success
=
CheckLogin(user, pass);
if
(success)
{
SetTips(
string
.Format(
"
QQ用户[{0}] 测试成功
"
, user));
if
(
!
SuccessList.Contains(user))
{
SuccessList.Add(user);
if
(failedList.Contains(user))
{
failedList.Remove(user);
//
移除成功的数据
}
UpdateList();
}
}
else
{
if
(
!
failedList.Contains(user))
{
failedList.Add(user);
UpdateList();
}
SetTips(
string
.Format(
"
QQ用户[{0}] 测试失败，可能密码不正确或未开通SMTP
"
, user));
}
Interlocked.Increment(
ref
currentIndex);
StartQQAt();
}
private
bool
CheckLogin(
string
user,
string
pass)
{
bool
result
=
false
;
using
(SMTP_Client client
=
new
SMTP_Client())
{
try
{
//
匹配使之可以用于其它邮箱
string
smtp
=
"
smtp.qq.com
"
;
int
atIndex
=
user.IndexOf(
"
@
"
);
if
(atIndex
>
0
)
{
smtp
=
"
smtp.
"
+
user.Substring(atIndex
+
1
);
}
if
(user.Contains(
"
@163.com
"
))
{
user
=
user.Replace(
"
@163.com
"
,
""
);
}
client.Connect(smtp, WellKnownPorts.SMTP_SSL,
true
);
client.Authenticate(user, pass);
string
helloText
=
client.GreetingText;
if
(helloText.Contains(
"
220
"
))
{
result
=
true
;
}
}
catch
(Exception ex)
{
;
}
}
return
result;
}
private
void
SetTips(
string
tips)
{
CallCtrlWithThreadSafetyEx.SetText(
this
.lblOperateTips, tips);
CallCtrlWithThreadSafetyEx.SetText(
this
.tsslTipsLable, tips);
Application.DoEvents();
Thread.Sleep(
20
);
}
private
void
UpdateList()
{
try
{
this
.lstFailed.Invoke(
new
MethodInvoker(
delegate
()
{
this
.lstFailed.Items.Clear();
foreach
(
string
item
in
failedList)
{
this
.lstFailed.Items.Add(item);
}
this
.lstFailed.Refresh();
}));
this
.lstSuccess.Invoke(
new
MethodInvoker(
delegate
()
{
this
.lstSuccess.Items.Clear();
foreach
(
string
item
in
SuccessList)
{
this
.lstSuccess.Items.Add(item);
}
this
.lstSuccess.Refresh();
}));
}
catch
(Exception ex)
{
LogTextHelper.WriteLine(ex.ToString());
}
}
其中利用了Lumisoft.NET的SMTP_Client对象来检测是否服务器应答的内容，如果含有220就表示支持SMTP了，呵呵，是不是很简单呢，其实上面的代码最为重要的就是下面这部分而已。
using
(SMTP_Client client
=
new
SMTP_Client())
{
try
{
//
匹配使之可以用于其它邮箱
string
smtp
=
"
smtp.qq.com
"
;
int
atIndex
=
user.IndexOf(
"
@
"
);
if
(atIndex
>
0
)
{
smtp
=
"
smtp.
"
+
user.Substring(atIndex
+
1
);
}
if
(user.Contains(
"
@163.com
"
))
{
user
=
user.Replace(
"
@163.com
"
,
""
);
}
client.Connect(smtp, WellKnownPorts.SMTP_SSL,
true
);
client.Authenticate(user, pass);
string
helloText
=
client.GreetingText;
if
(helloText.Contains(
"
220
"
))
{
result
=
true
;
}
}
catch
(Exception ex)
{
;
}
}
(SMTP_Client client
=
new
SMTP_Client())
{
try
{
//
匹配使之可以用于其它邮箱
string
smtp
=
"
smtp.qq.com
"
;
int
atIndex
=
user.IndexOf(
"
@
"
);
if
(atIndex
>
0
)
{
smtp
=
"
smtp.
"
+
user.Substring(atIndex
+
1
);
}
if
(user.Contains(
"
@163.com
"
))
{
user
=
user.Replace(
"
@163.com
"
,
""
);
}
client.Connect(smtp, WellKnownPorts.SMTP_SSL,
true
);
client.Authenticate(user, pass);
string
helloText
=
client.GreetingText;
if
(helloText.Contains(
"
220
"
))
{
result
=
true
;
}
}
catch
(Exception ex)
{
;
}
}
其他部分就是为了实现一个循环机批量的过程而已。本随便介绍的功能，都已经集成的我的软件QQ搜通天系列软件中了，需要了解可以下载软件测试下，有宝贵意见可以相互沟通交流。