本文实例讲述了asp.net基于windows服务实现定时发送邮件的方法。分享给大家供大家参考,具体如下:
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//定义组件
private System.Timers.Timer time;
public int nowhour;
public int minutes;
public string sendTime;
public Thread th;
public string isOpen; //是否启用定时发送
public string strToEUser;
public static int index = -1;
public static ArrayList mulitaddress;
//服务开始
protected override void OnStart( string [] args)
{
time = new System.Timers.Timer();
time.Enabled = true ;
time.AutoReset = true ;
//定时执行方法
time.Elapsed+= new System.Timers.ElapsedEventHandler(time_Elapsed);
UserEmail toUser = new UserEmail();
mulitaddress = GetMailAdressName();
// LogHelper.SaveNote("当前索引的值" + index.ToString());
Thread.Sleep(2000);
time.Start();
}
public class LogHelper
{
public static void SaveNote( string note)
{
FileStream stream = new FileStream(GetLogDirectory( "Common" ) + DateTime.Now.ToString( "yyyy-MM-dd" ) + ".txt" , FileMode.Append, FileAccess.Write, FileShare.Delete | FileShare.ReadWrite);
StreamWriter writer = new StreamWriter(stream, Encoding.UTF8);
writer.WriteLine( "================================================================" );
writer.WriteLine( string .Format( "Note:/t{0}" , note));
writer.WriteLine( string .Format( "DateTime:/t{0}/r/n/r/n" ,DateTime.Now.ToString()));
stream.Flush();
writer.Close();
stream.Close();
stream.Dispose();
writer.Dispose();
}
public static void SaveNote( string note, string txtname)
{
FileStream stream = new FileStream(GetLogDirectory(txtname) + DateTime.Now.ToString( "yyyy-MM-dd" ) + ".txt" , FileMode.Append, FileAccess.Write, FileShare.Delete | FileShare.ReadWrite);
StreamWriter writer = new StreamWriter(stream, Encoding.GetEncoding( "gb2312" ));
writer.WriteLine( "================================================================" );
writer.WriteLine( string .Format( "Note:/t{0}" , note));
writer.WriteLine( string .Format( "DateTime:/t{0}/r/n/r/n" , DateTime.Now.ToString( "yyyyMMddHHmmss" )));
stream.Flush();
writer.Close();
stream.Close();
stream.Dispose();
writer.Dispose();
}
public static void SaveException(Exception e)
{
SaveException(e, string .Empty);
}
public static void SaveException(Exception e, string memo)
{
FileStream stream = new FileStream(GetLogDirectory( "Common" ) + DateTime.Now.ToString( "yyyy-MM-dd" ) + ".txt" , FileMode.Append, FileAccess.Write, FileShare.Delete | FileShare.ReadWrite);
StreamWriter writer = new StreamWriter(stream);
writer.WriteLine( "================================================================" );
writer.WriteLine( string .Format( "Memo:/t{0}" , memo));
writer.WriteLine( string .Format( "DateTime:/t{0}" , DateTime.Now.ToShortTimeString()));
writer.WriteLine( string .Format( "Message:/t{0}" , e.Message));
writer.WriteLine( string .Format( "StackTrace:/r/n----------/r/n{0}/r/n----------/r/n/r/n/r/n" , e.StackTrace));
stream.Flush();
writer.Close();
stream.Close();
stream.Dispose();
writer.Dispose();
}
public static string GetLogDirectory( string category)
{
string baseDirectory = string .Empty;
if ((HttpContext.Current != null ) && (HttpContext.Current.Server != null ))
{
baseDirectory = HttpContext.Current.Server.MapPath( "~" );
}
else
{
baseDirectory = AppDomain.CurrentDomain.BaseDirectory;
}
if ((baseDirectory[baseDirectory.Length - 1] != '/' ) && (baseDirectory[baseDirectory.Length - 1] != '//' ))
{
baseDirectory = baseDirectory + @"/" ;
}
baseDirectory = string .Format( @"{0}Log/{1}/" , baseDirectory, category);
if (!Directory.Exists(baseDirectory))
{
Directory.CreateDirectory(baseDirectory);
}
return baseDirectory;
}
}
void time_Elapsed( object sender, System.Timers.ElapsedEventArgs e)
{
try
{
if (mulitaddress != null )
{
LogHelper.SaveNote( "进入time_Elapsed" );
//获取定时发送时间
sendTime = Convert.ToString(GetConfigValue( "sendTime" ));
LogHelper.SaveNote( "sendTime" + sendTime);
//是否开启定时发送功能
isOpen = GetConfigValue( "isOpen" );
int sleeptime = Convert.ToInt32(GetConfigValue( "SleepTime" ));
int stoptime = Convert.ToInt32(GetConfigValue( "stoptime" ));
//LogHelper.SaveNote("数组长度" + mulitaddress.Count);
// LogHelper.SaveNote("是否开启定时发送功能" + isOpen + "定时时间" + sendTime + "定时小时数:" + Convert.ToInt32(sendTime.Split(new char[] { ':' })[0]) + "定时分钟数:" + Convert.ToInt32(sendTime.Split(new char[] { ':' })[1]));
if (isOpen == "true" )
{
//现在时间 小时
nowhour = Convert.ToInt32(DateTime.Now.Hour.ToString()); //10
//现在分钟
minutes = Convert.ToInt32(DateTime.Now.Minute.ToString()); //5
//获取发送小时
int sendhour = Convert.ToInt32(sendTime.Split( new char [] { ':' })[0]);
//获取发送的分钟
int sendMinute = Convert.ToInt32(sendTime.Split( new char [] { ':' })[1]);
LogHelper.SaveNote( "进入定时发送邮件服务! 定时小时为:" + sendhour.ToString() + "定时分钟为:" + sendMinute.ToString() + "现在小时为:" + nowhour.ToString() + "现在定时的分钟为:" + minutes.ToString());
LogHelper.SaveNote( "当前索引的值" + index.ToString());
if (nowhour == stoptime)
{
LogHelper.SaveNote( "停止时间点到了 邮件停止发送 !!!" );
index = -1;
}
else
{
//如果和当前的时间 小时相等 则定时发送邮件
if ((Convert.ToDateTime(DateTime.Now.ToShortTimeString()) >= Convert.ToDateTime(sendTime)) && index < mulitaddress.Count)
{
index++;
if (index < mulitaddress.Count)
{
SendEmail(((UserEmail)mulitaddress[index]));
}
else
{
LogHelper.SaveNote( "发送完毕 当前的索引值为" + index.ToString());
}
}
}
}
else
{
//LogHelper.SaveNote("当前索引的值" + index.ToString());
index++;
if (index < mulitaddress.Count)
{
SendEmail(((UserEmail)mulitaddress[index]));
}
else
{
LogHelper.SaveNote( "发送完毕 时间停止" );
time.Enabled = false ;
time.Stop();
}
}
Thread.Sleep(sleeptime);
}
else
LogHelper.SaveNote( "mulitaddress=null" );
}
catch (Exception ex)
{
LogHelper.SaveNote(ex.ToString());
}
}
public ArrayList GetMailAdressName()
{
ArrayList list = new ArrayList();
string strSQL = "select b.mailAddress, a.mailtemplate,a.title from tg_product as a inner join tg_mailOrder as b on a.ccode=b.ccode where a.createtime=(select max(createtime) from tg_product)" ;
SqlDataReader dr = SqlHelper.ExecuteReader(CommandType.Text, strSQL, null );
if (dr.HasRows)
{
while (dr.Read())
{
UserEmail email = new UserEmail();
email.Mailaddres = dr[ "mailAddress" ].ToString();
email.Title = dr[ "title" ].ToString();
email.Contents = dr[ "mailtemplate" ].ToString();
list.Add(email);
}
}
return list;
}
/// <summary>
/// 定义用户邮件 标题 内容 Email地址
/// </summary>
public class UserEmail {
private string title;
private string contents;
public string Contents
{
get { return contents; }
set { contents = value; }
}
private string mailaddres;
public string Mailaddres
{
get { return mailaddres; }
set { mailaddres = value; }
}
public string Title {
get { return title;}
set { target='_blank'>QQ stmp ssl加密使用的端口
smtp.Port = port;
smtp.EnableSsl = f; ; //true 经过ssl加密
//验证发件人的身份 用户名(邮件地址和密码)
smtp.Credentials = new System.Net.NetworkCredential(username, pwd);
//初始化信息(来自 接收人)
MailMessage _mailmessage = new MailMessage();
//_mailmessage.To = strto;
//发送多个人 接收人邮件地址以,隔开
_mailmessage.From = new MailAddress(strfrom);
_mailmessage.To.Add(Mulitaddress);
//如果发送失败,SMTP 服务器将发送 失败邮件通知
_mailmessage.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;
//优先级
_mailmessage.Priority = MailPriority.High;
//发送主题
_mailmessage.Subject = subject;
//有附件则添加附件
if (! string .IsNullOrEmpty(attachmentName))
{
System.Net.Mail.Attachment attch = new System.Net.Mail.Attachment(attachmentName);
_mailmessage.Attachments.Add(attch);
}
//邮件主题编码
_mailmessage.SubjectEncoding = System.Text.Encoding.UTF8;
//指定发送的格式 (Html)
_mailmessage.IsBodyHtml = true ;
//指定发送邮件的编码
_mailmessage.BodyEncoding = System.Text.Encoding.UTF8;
//指定邮件内容
_mailmessage.Body = body;
//发送邮件
try
{
smtp.Send(_mailmessage);
}
catch (Exception ex)
{
using (StreamWriter writer = new StreamWriter(ErrorLog+ "://MailErrorlog.txt" , true , System.Text.Encoding.UTF8))
{
writer.WriteLine( "---------------------------------------------" );
writer.WriteLine( "SendEmail方法发送邮件错误日志................" );
writer.WriteLine(ex.ToString());
writer.Flush();
writer.Close();
}
}
}
#endregion
#region 获取邮件配置节点的值
/// <summary>
/// 加载相应配置文件 并按节点名称获取对应的值
/// </summary>
/// <param name="target">当前节点的名称</param>
/// <returns>返回当前节点名称所对应的值</returns>
public string GetConfigValue( string target)
{
string configpath=System.Windows.Forms.Application.StartupPath.ToString() + "/Email.config" ;
return GetConfigValue(configpath, target);
}
/// <summary>
/// 根据节点名称获取配置文件对应的值(邮件配置信息)
/// </summary>
/// <param name="configpath">配置文件路径</param>
/// <param name="target">要获取配置节点的名称</param>
/// <returns>返回当前节点名称所对应的值</returns>
public string GetConfigValue( string configpath, string target)
{
XmlDocument doc = new XmlDocument();
//加载文件路径s
doc.Load(configpath);
//获取当前节点的根节点
XmlElement root = doc.DocumentElement;
//获取当前节点下所有匹配子节点元素
XmlNodeList xmlnode = root.GetElementsByTagName(target);
//返回值
return xmlnode[0].InnerXml;
}
#endregion
//服务结束
protected override void OnStop()
{
time.Enabled = false ;
}
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Email.Config如下:
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<? xml version = "1.0" encoding = "utf-8" ?>
< Emailconfig >
<!--邮件服务器地址 Gmail stmp.gmail.com-->
< smtpserver >*****</ smtpserver >
<!--邮箱用户名 -->
< emailuserName >***</ emailuserName >
<!--邮箱密码-->
< emailuserpwd >****</ emailuserpwd >
<!--邮箱地址-->
< emailfrom >*****</ emailfrom >
<!--是否启用定时发送邮件功能-->
< isOpen >true</ isOpen >
<!--前提下isOpen为true 定在每天某个时间点发送邮件-->
< sendTime >8:53</ sendTime >
<!--是否经过SSL加密-->
< SSL >false</ SSL >
<!--Gmail smtp SSL加密 (Gmail:587) 服务器端口(没有加密(SSL 配置为false) 一般都是25
(163,qq))-->
< serverPort >25</ serverPort >
<!--线程睡眠时间-->
< SleepTime >1000</ SleepTime >
<!--定停发送时间-->
< stoptime >0</ stoptime >
<!--发送邮件错误日志路径 盘根目录-->
< ErrorLog >E</ ErrorLog >
<!--定义数据库连接字符串-->
< Connstr ></ Connstr >
</ Emailconfig >
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SQLHelper如下:
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#region 数据库操作类的封装
public abstract class SqlHelper
{
//Database connection strings
public static readonly string ConnectionStringLocalTransaction = Connstr;
// Hashtable to store cached parameters
private static Hashtable parmCache = Hashtable.Synchronized( new Hashtable());
/*返回数据库连接*/
public static SqlConnection getConnection()
{
SqlConnection c = new SqlConnection(ConnectionStringLocalTransaction);
return c;
}
/// <summary>
/// Execute a SqlCommand that returns a resultset against the database specified in the connection string
/// using the provided parameters.
/// </summary>
/// <remarks>
/// e.g.:
/// SqlDataReader r = ExecuteReader(connString, CommandType.StoredProcedure, "PublishOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connectionString">a valid connection string for a SqlConnection</param>
/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
/// <param name="commandText">the stored procedure name or T-SQL command</param>
/// <param name="commandParameters">an array of SqlParamters used to execute the command</param>
/// <returns>A SqlDataReader containing the results</returns>
public static SqlDataReader ExecuteReader( string connectionString, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
SqlConnection conn = new SqlConnection(connectionString);
// we use a try/catch here because if the method throws an exception we want to
// close the connection throw code, because no datareader will exist, hence the
// commandBehaviour.CloseConnection will not work
try
{
PrepareCommand(cmd, conn, null , cmdType, cmdText, commandParameters);
SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
cmd.Parameters.Clear();
return rdr;
}
catch
{
conn.Close();
throw ;
}
}
public static DataSet ReturnDataSet(CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
SqlConnection conn = new SqlConnection(ConnectionStringLocalTransaction);
// we use a try/catch here because if the method throws an exception we want to
// close the connection throw code, because no datareader will exist, hence the
// commandBehaviour.CloseConnection will not work
try
{
PrepareCommand(cmd, conn, null , cmdType, cmdText, commandParameters);
DataSet ds = new DataSet();
SqlDataAdapter sda = new SqlDataAdapter(cmd);
sda.Fill(ds);
return ds;
}
catch
{
conn.Close();
throw ;
}
}
/// <summary>
/// Execute a SqlCommand that returns a resultset against the database specified in the connection string
/// using the provided parameters.
/// </summary>
/// <remarks>
/// e.g.:
/// SqlDataReader r = ExecuteReader(SqlConnection, CommandType.StoredProcedure, "PublishOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connectionString">a valid connection string for a SqlConnection</param>
/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
/// <param name="commandText">the stored procedure name or T-SQL command</param>
/// <param name="commandParameters">an array of SqlParamters used to execute the command</param>
/// <returns>A SqlDataReader containing the results</returns>
public static SqlDataReader ExecuteReader(SqlConnection conn, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
// we use a try/catch here because if the method throws an exception we want to
// close the connection throw code, because no datareader will exist, hence the
// commandBehaviour.CloseConnection will not work
try
{
PrepareCommand(cmd, conn, null , cmdType, cmdText, commandParameters);
SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
cmd.Parameters.Clear();
return rdr;
}
catch
{
conn.Close();
throw ;
}
}
/// <summary>
/// Execute a SqlCommand that returns a resultset against the database specified in the connection string
/// using the provided parameters.
/// </summary>
/// <remarks>
/// e.g.:
/// SqlDataReader r = ExecuteReader(connString, CommandType.StoredProcedure, "PublishOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connectionString">a valid connection string for a SqlConnection</param>
/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
/// <param name="commandText">the stored procedure name or T-SQL command</param>
/// <param name="commandParameters">an array of SqlParamters used to execute the command</param>
/// <returns>A SqlDataReader containing the results</returns>
public static SqlDataReader ExecuteReader(CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
{
SqlCommand cmd = new SqlCommand();
SqlConnection conn = new SqlConnection(ConnectionStringLocalTransaction);
// we use a try/catch here because if the method throws an exception we want to
// close the connection throw code, because no datareader will exist, hence the
// commandBehaviour.CloseConnection will not work
try
{
PrepareCommand(cmd, conn, null , cmdType, cmdText, commandParameters);
SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
cmd.Parameters.Clear();
return rdr;
}
catch
{
conn.Close();
throw ;
}
}
/// <summary>
/// add parameter array to the cache
/// </summary>
/// <param name="cacheKey">Key to the parameter cache</param>
/// <param name="cmdParms">an array of SqlParamters to be cached</param>
public static void CacheParameters( string cacheKey, params SqlParameter[] commandParameters)
{
parmCache[cacheKey] = commandParameters;
}
/// <summary>
/// Retrieve cached parameters
/// </summary>
/// <param name="cacheKey">key used to lookup parameters</param>
/// <returns>Cached SqlParamters array</returns>
public static SqlParameter[] GetCachedParameters( string cacheKey)
{
SqlParameter[] cachedParms = (SqlParameter[])parmCache[cacheKey];
if (cachedParms == null )
return null ;
SqlParameter[] clonedParms = new SqlParameter[cachedParms.Length];
for ( int i = 0, j = cachedParms.Length; i < j; i++)
clonedParms[i] = (SqlParameter)((ICloneable)cachedParms[i]).Clone();
return clonedParms;
}
/// <summary>
/// Prepare a command for execution
/// </summary>
/// <param name="cmd">SqlCommand object</param>
/// <param name="conn">SqlConnection object</param>
/// <param name="trans">SqlTransaction object</param>
/// <param name="cmdType">Cmd type e.g. stored procedure or text</param>
/// <param name="cmdText">Command text, e.g. Select * from Products</param>
/// <param name="cmdParms">SqlParameters to use in the command</param>
private static void PrepareCommand(SqlCommand cmd, SqlConnection conn, SqlTransaction trans, CommandType cmdType, string cmdText, SqlParameter[] cmdParms)
{
if (conn.State != ConnectionState.Open)
conn.Open();
cmd.Connection = conn;
cmd.CommandText = cmdText;
if (trans != null )
cmd.Transaction = trans;
cmd.CommandType = cmdType;
if (cmdParms != null )
{
foreach (SqlParameter parm in cmdParms)
cmd.Parameters.Add(parm);
}
}
/// <summary>
/// 传入输入参数
/// </summary>
/// <param name="ParamName">存储过程名称</param>
/// <param name="DbType">参数类型</param></param>
/// <param name="Size">参数大小</param>
/// <param name="Value">参数值</param>
/// <returns>新的 parameter 对象</returns>
public static SqlParameter MakeInParam( string ParamName, SqlDbType DbType, int Size, object Value)
{
return MakeParam(ParamName, DbType, Size, ParameterDirection.Input, Value);
}
public void MakeInParam( ref string OldString, string ParamName, SqlDbType DbType, int Size, object Value)
{
OldString = OldString.Replace(ParamName, ( string )Value);
}
/// <summary>
/// 传入返回值参数
/// </summary>
/// <param name="ParamName">存储过程名称</param>
/// <param name="DbType">参数类型</param>
/// <param name="Size">参数大小</param>
/// <returns>新的 parameter 对象</returns>
public static SqlParameter MakeOutParam( string ParamName, SqlDbType DbType, int Size)
{
return MakeParam(ParamName, DbType, Size, ParameterDirection.Output, null );
}
/// <summary>
/// 传入返回值参数
/// </summary>
/// <param name="ParamName">存储过程名称</param>
/// <param name="DbType">参数类型</param>
/// <param name="Size">参数大小</param>
/// <returns>新的 parameter 对象</returns>
public static SqlParameter MakeReturnParam( string ParamName, SqlDbType DbType, int Size)
{
return MakeParam(ParamName, DbType, Size, ParameterDirection.ReturnValue, null );
}
/// <summary>
/// 生成存储过程参数
/// </summary>
/// <param name="ParamName">存储过程名称</param>
/// <param name="DbType">参数类型</param>
/// <param name="Size">参数大小</param>
/// <param name="Direction">参数方向</param>
/// <param name="Value">参数值</param>
/// <returns>新的 parameter 对象</returns>
public static SqlParameter MakeParam( string ParamName, SqlDbType DbType, Int32 Size, ParameterDirection Direction, object Value)
{
SqlParameter param;
if (Size > 0)
param = new SqlParameter(ParamName, DbType, Size);
else
param = new SqlParameter(ParamName, DbType);
param.Direction = Direction;
if (!(Direction == ParameterDirection.Output && Value == null ))
param.Value = Value;
return param;
}
/// <summary>
/// 创建 SqlCommand 对象实例(用来返回一个整数值)
/// </summary>
/// <param name="storedProcName">存储过程名</param>
/// <param name="parameters">存储过程参数</param>
/// <returns>SqlCommand 对象实例</returns>
private static SqlCommand BuildIntCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters)
{
SqlCommand command = BuildQueryCommand(connection, storedProcName, parameters);
command.Parameters.Add( new SqlParameter( "ReturnValue" ,
SqlDbType.Int, 4, ParameterDirection.ReturnValue,
false , 0, 0, string .Empty, DataRowVersion.Default, null ));
return command;
}
/// <summary>
/// 构建 SqlCommand 对象(用来返回一个结果集,而不是一个整数值)
/// </summary>
/// <param name="connection">数据库连接</param>
/// <param name="storedProcName">存储过程名</param>
/// <param name="parameters">存储过程参数</param>
/// <returns>SqlCommand</returns>
private static SqlCommand BuildQueryCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters)
{
SqlCommand command = new SqlCommand(storedProcName, connection);
command.CommandType = CommandType.StoredProcedure;
foreach (SqlParameter parameter in parameters)
{
command.Parameters.Add(parameter);
}
return command;
}
#region 执行查询语句 返回dataset
/// <summary>
/// 执行查询语句,返回DataSet
/// </summary>
/// <param name="cmdText">查询语句</param>
/// <returns>DataSet</returns>
public static DataSet GetDataSet( string cmdText)
{
using (SqlConnection conn = new SqlConnection(ConnectionStringLocalTransaction))
{
SqlCommand sqlcmd = new SqlCommand(cmdText, conn);
sqlcmd.CommandTimeout = 1000;
SqlDataAdapter cmd = new SqlDataAdapter(sqlcmd);
DataSet ds = new DataSet();
try
{
conn.Open();
cmd.Fill(ds, "mydt" );
return ds;
}
catch (Exception ex)
{
conn.Close();
cmd.Dispose();
conn.Dispose();
throw new Exception(ex.Message);
}
finally
{
cmd.Dispose();
conn.Close();
conn.Dispose();
}
}
}
#endregion
}
#endregion
|
将C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/InstallUtil.exe 拷贝到执行的目录Bin Debug文件下 然后注册windows服务
复制代码 代码如下:
InstallUtil.exe windowservice.exe
卸载windows服务:
复制代码 代码如下:
InstallUtil.exe -u windowservice.exe
希望本文所述对大家asp.net程序设计有所帮助。