利用ASP.NET自带System.Net.Mail发邮件和Jmail接收邮件

.net中自带了可以发邮件的，但是如果要是收邮件的话，则需要第三方组件如JMail或是别的组件，下面简单介绍下发送邮件代码：

protected void send_Click(object sender, EventArgs e)

{

sendata = sendtarget.Value;

title = sendtitle.Text;

content = sendcontent.Text;

//-------------------邮件发送部分-----------------------------------

TimeFilename = System.DateTime.Now.Minute.ToString() + System.DateTime.Now.Second.ToString() + System.DateTime.Now.Millisecond.ToString();

Filename = "mail" + TimeFilename + ".txt";

Filepath= Server.MapPath(".")+"//faxlistfile//";

FileTotalpath=Filepath+Filename;

//-----------------------附件上传并保存-------------------------

if (this.sendfileupload.PostedFile.FileName != "")

{

try

{

strSaveDir = "//fileupload//";

strName = sendfileupload.PostedFile.FileName;

//取得文件名(抱括路径)里最后一个"."的索引

int intExt = strName.LastIndexOf(".");

//取得文件扩展名

strExt = strName.Substring(intExt);

//取得文件名(包括路径)里最后一个"/"的索引

int intPath = strName.LastIndexOf("//");

//取得文件名(不包括路径)

Random objRand = new Random();

System.DateTime date = DateTime.Now;

//生成随机文件名

string strFile = strName.Substring(intPath);

string str = strFile.Substring(1,strFile.LastIndexOf(".")-1);

string saveName = System.DateTime.Now.Minute.ToString() + System.DateTime.Now.Second.ToString() + System.DateTime.Now.Millisecond.ToString() + Convert.ToString(objRand.Next(99) * 97 + 100);

strNewName =str +"("+ saveName +")"+ strExt;//取新名字，防止重复

//保存文件到你所要的目录,这里是IIS根目录下的fileupload目录.你可以改变.

//注意: 我这里用Server.MapPath()取当前文件的绝对目录.在asp.net里"/"必须用"//"代替

strPath = Server.MapPath(".") + strSaveDir + strNewName;

//strPath = Server.MapPath(strSaveDir + strNewName);

sendfileupload.PostedFile.SaveAs(strPath);

}

catch

{

Response.Write("<script language='javascript'>alert('请重新加载附件!');localtion='javascript:history.go(-1)'</script>");

}

//------------------------END--------------------------------

MailContent = commonfunction.getstringlist(sendata, 3);

//MailFaxContent = commonfunction.getstringlist(sendata,4);

MailNo = commonfunction.getstringlist(sendata, 1);

MailUser = commonfunction.getstringlist(sendata, 2);

commonfunction.buildDatafile(FileTotalpath,MailContent);

//Attachment attach = new Attachment(FileTotalpath);

MailTitle = "ADDRESS-LIST=" + Filename;

MailAddress = System.Configuration.ConfigurationManager.AppSettings.Get("MailAddress");

MailFrom = System.Configuration.ConfigurationManager.AppSettings.Get("MailFrom");

POPAddress = System.Configuration.ConfigurationManager.AppSettings.Get("POPAddress");

STMPAddress = System.Configuration.ConfigurationManager.AppSettings.Get("STMPAddress");

MailUsername = System.Configuration.ConfigurationManager.AppSettings.Get("MailUsername");

MailPass = System.Configuration.ConfigurationManager.AppSettings.Get("MailPass");

MailMessage newmail = new MailMessage(MailFrom, MailAddress);

newmail.Subject = MailTitle;

newmail.Body = content;

newmail.IsBodyHtml = false;

if (!(sendfileupload.PostedFile.FileName).Equals(""))

{

try

{

newmail.Attachments.Add(new Attachment(strPath));

}

catch

{

Response.Redirect("sendupfileerror.htm");

}

newmail.Attachments.Add(new Attachment(FileTotalpath));

SmtpClient sc = new SmtpClient(STMPAddress);

try

{

sc.Send(newmail);

}

catch (Exception) {

newmail.Dispose();

commonfunction.delDatafile(FileTotalpath);

commonfunction.delDatafile(strPath);

Response.Redirect("senderror.htm");

}

newmail.Dispose();

commonfunction.delDatafile(FileTotalpath);

//------------------------END-----------------------------------

//-----------------------更新到数据库中-------------------------

SqlConnection conn = sqlconn.CreateConn();

SqlDataAdapter da = new SqlDataAdapter("select * from sendfax", conn);

DataSet ds = new DataSet();

da.Fill(ds);

DataTable dt = ds.Tables[0];

for (int i=0;i<MailContent.Length;i++)

{

DataRow dr =dt.NewRow();

dr["faxno"]=MailNo[i];

dr["sendname"] = MailUser[i];

dr["title"]= title;

dr["content"]= content;

dr["sendtime"] = System.DateTime.Now.ToString();

dr["sendtag"] = "1";

dr["attachment"] = strNewName;

dt.Rows.Add(dr);

}

//ds.AcceptChanges();

SqlCommandBuilder cmdBuilder = new SqlCommandBuilder(da);

da.Update(dt);

dt.AcceptChanges();

conn.Close();

Response.Redirect("sendsuccess.htm");

}

可发送后，我们在收邮件这块其实大家有好多人存在问题，我在做这块时也出现过，但是漫漫的来解决吧！

我们在看如下的收邮件代码：导入如下空间

using System.Data.SqlClient;

using faxapp.dataconn;

using faxapp.common;

using System.Net.Sockets;

using jmail;

using System.IO;

收邮件完整代码：

public void ReceiveMails()

{

jmail.Message Msg = new jmail.Message();

jmail.POP3 jpop = new jmail.POP3();

jmail.Attachments atts;

jmail.Attachment att;

//Mime m = new Mime();

//username为用户名,该方法通过用户名获取该用户的pop设置,即用户的POP用户名,密码,POP服务器地址以及端口号这四个参数,这四个参数是连接POP服务器的必用参数.

//SqlDataReader dataReader = this.ExtGetSetting(Username);

//if (dataReader.Read())

//{

// if (dataReader["PopServer"].ToString() != "" && dataReader["PopUsername"].ToString() != "")

// {

//连接POP服务器

MailAddress = System.Configuration.ConfigurationManager.AppSettings.Get("MailAddress");

MailFrom = System.Configuration.ConfigurationManager.AppSettings.Get("MailFrom");

POPAddress = System.Configuration.ConfigurationManager.AppSettings.Get("POPAddress");

STMPAddress = System.Configuration.ConfigurationManager.AppSettings.Get("STMPAddress");

MailUsername = System.Configuration.ConfigurationManager.AppSettings.Get("MailUsername");

MailPass = System.Configuration.ConfigurationManager.AppSettings.Get("MailPass");

Mailpassword=System.Configuration.ConfigurationManager.AppSettings.Get("Mailpassword");

string mailPopPort = System.Configuration.ConfigurationManager.AppSettings.Get("MailPopPort");

MailPopPort = Convert.ToInt32(mailPopPort);

jpop.Connect(MailUsername, Mailpassword, POPAddress, MailPopPort);

//如果服务器上有邮件

if (jpop.Count >= 1)

{

for (int i = 1; i <= jpop.Count; i++)

{

Msg = jpop.Messages[i];

atts = Msg.Attachments;

//取数据库中邮件信息中的最大发送时间,即最近接收到的一封邮件的时间

DataTable data = this.GetDataTable("select max(accepttime) from acceptfax where sendtag='1'");

//对服务器上的邮件的发送时间和数据库最近一封邮件的时间进行比较,如果大那么证明该邮件还未被收取,是一封新邮件,这样避免重复收取邮件入库

if (Msg.Date > Convert.ToDateTime(data.Rows[0][4].ToString()))

{

//将这封新邮件的信息保存到数据库

//this.SaveExtMail(Msg, Username, dataReader["Email"].ToString(), jpop.GetMessageUID(i));

this.SaveExtMail(Msg.FromName, Msg.Subject, Msg.Body, Msg.Date.ToLongDateString());

//获取附件上传到服务器并且将信息存入数据库

if (atts.Count >= 1)

{

for (int k = 0; k < atts.Count; k++)

{

att = atts[k];//获得附件

string attname = att.Name;

try

{

//Random TempNameInt = new Random();

//string NewMailDirName = TempNameInt.Next(100000000).ToString();

//生成随机文件后缀名

string strSaveDir = "//AttachFiles//";

//取得文件名(抱括路径)里最后一个"."的索引

int intExt = attname.LastIndexOf(".");

//取得文件扩展名

string strExt = attname.Substring(intExt);

//取得文件名(不包括路径)

Random objRand = new Random();

System.DateTime date = DateTime.Now;

//生成随机文件名

string str = attname.Substring(1, attname.LastIndexOf(".") - 1);

string saveName = System.DateTime.Now.Minute.ToString() + System.DateTime.Now.Second.ToString() + System.DateTime.Now.Millisecond.ToString() + Convert.ToString(objRand.Next(99) * 97 + 100);

string strNewName = str + "(" + saveName + ")" + strExt;//取新名字，防止重复

Directory.CreateDirectory(System.Web.HttpContext.Current.Server.MapPath(".") + "//AttachFiles//" + strNewName);

string mailPath = strSaveDir + strNewName;

att.SaveToFile(System.Web.HttpContext.Current.Server.MapPath(".") + mailPath);

//获取该封邮件在数据库的ID,以便和附件信息相对应,取邮件表中的最大ID即可

int mailID = this.GetMailID();

将附件信息存入数据库

this.AttExtSend(mailID, attname, att.Size, mailPath, Msg.From);

}

catch (Exception ex)

{

throw new Exception(ex.Message);

}

//删除服务器上的邮件

jpop.DeleteMessages();

//断开连接

jpop.Disconnect();

// }

//}

}

//取数据库中邮件某个条件下的某条信息

public DataTable GetDataTable(string sqlstr)

{

SqlConnection conn = sqlconn.CreateConn();

SqlDataAdapter da = new SqlDataAdapter(sqlstr , conn);

DataSet ds = new DataSet();

da.Fill(ds);

DataTable dt = ds.Tables[0];

dt.AcceptChanges();

conn.Close();

return dt;

}

//将新邮件的信息保存到数据库acceptfax表中

public void SaveExtMail(string FromName, string Subject, string Body, string Date)

{

//-----------------------更新到数据库中-------------------------

SqlConnection conn = sqlconn.CreateConn();

SqlDataAdapter da = new SqlDataAdapter("select * from acceptfax", conn);

DataSet ds = new DataSet();

da.Fill(ds);

DataTable dt = ds.Tables[0];

DataRow dr = dt.NewRow();

dr["faxno"] = FromName;

dr["title"] = Subject;

dr["content"] = Body;

dr["accepttime"] = Date;

dt.Rows.Add(dr);

SqlCommandBuilder cmdBuilder = new SqlCommandBuilder(da);

da.Update(dt);

dt.AcceptChanges();

conn.Close();

}

//获取该邮件的在数据库中的ID号，便与和附件相对应

public int GetMailID()

{

//取数据库中邮件信息中的最大发送时间,即最近接收到的一封邮件的时间,得到该邮件sid号

DataTable data = this.GetDataTable("select max(accepttime) from acceptfax where sendtag='1'");

int result = Convert.ToInt32(data.Rows[0][0].ToString());

return result;

}

//把每个附件的内容更新入数据库

public void AttExtSend(int mailID,string attname,int Size,string mailpath,string format)

{

//-----------------------更新到数据库中-------------------------

SqlConnection conn = sqlconn.CreateConn();

SqlDataAdapter da = new SqlDataAdapter("select * from attachmentInfo", conn);

DataSet ds = new DataSet();

da.Fill(ds);

DataTable dt = ds.Tables[0];

DataRow dr = dt.NewRow();

dr["mailID"] = mailID;

dr["attname"] = attname;

dr["attsize"] = Size;

dr["mailpath"] = mailpath;

dr["format"] = format;

dt.Rows.Add(dr);

SqlCommandBuilder cmdBuilder = new SqlCommandBuilder(da);

da.Update(dt);

dt.AcceptChanges();

conn.Close();

}

希望大家互相交流！

利用ASP.NET自带System.Net.Mail发邮件和Jmail接收邮件

继续阅读

报错：'mysql' 不是内部或外部命令，也不是可运行的程序或批处理文件。

Linxu常用命令技巧汇总

ERROR 1 (HY000): Can't create/write to file '/tmp/#sql_4188_1.MYI' (Errcode: 28)

艰难安装LDAP,SSL认证

《Linux命令行与Shell脚本编程大全第2版.布卢姆》pdf

MySQL的4种隔离级别？出现问题

Java小案例——随机数猜测随机数猜测

XX系统实施过程问题总结

无组件上传图片到数据库中，最完整解决方案

【MySQL数据库】数据库索引事务1.索引2.事务

neo4j之cypher使用文档

NOSQL安全攻击

mybatis_入门程序Mybatis入门

GridView终极用法(一)

登录plsql 报错 the account is locked --用户被锁

SequoiaDB巨杉数据库C++驱动概述