stmp批量发送email包括图片和附件

应用场景：
女友工作因素，需要定期的与客户发送组织会议邀请，发送对象不同，内容基本相同，附件不同，每次发送时麻烦费事耽误时间，此工具的开发应用必然会深受女友的喜欢、大大减少其工作量。
设计：
Excel表对应，收件人对象信息，遍历该对象列表，组织邮件内容，选中附件列表，一键发送并展示发送结果。
运行环境：
邮件服务器：163.com stmp方式
步骤：

读取excel中收件人列表，转存到内存DataTable中
邮件正文采用html格式，可以发送图片，保存预定好的邮件格式
根据邀请函模板生成每个人的邀请函doc文件，转换格式为pdf文件
遍历DataTable收件人，添加附件发送邮件
个人邮箱设置，发送步骤、进度显示

程序代码：

string excelFilePath= "";
string wordExFilePath = "";
string wordFilePath = "";
string senderEmail = null;
string senderPassword = null;
string emailSubject = "";
string emailBody = "";
bool isHaveImg = false;
private void Form1_Load(object sender, EventArgs e)
{
}

private System.Data.DataTable GetExcelData()
{

Microsoft.Office.Interop.Excel.Application app = new Microsoft.Office.Interop.Excel.Application();
Microsoft.Office.Interop.Excel.Sheets sheets;
Microsoft.Office.Interop.Excel.Workbook workbook = null;
object oMissiong = System.Reflection.Missing.Value;
System.Data.DataTable dt = new System.Data.DataTable();

try
{
if (app == null)
return null;

workbook = app.Workbooks.Open(excelFilePath, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong);

//将数据读入到DataTable中——Start
sheets = workbook.Worksheets;

Worksheet worksheet = (Worksheet)sheets.get_Item(1);//读取第一张表

if (worksheet == null)
return null;

string cellContent;
int iRowCount = worksheet.UsedRange.Rows.Count;
int iColCount = worksheet.UsedRange.Columns.Count;
Microsoft.Office.Interop.Excel.Range range;

//负责列头Start
DataColumn dc;
int ColumnID = 1;
range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[1, 1];
while (range.Text.ToString().Trim() != "")
{
dc = new DataColumn();
dc.DataType = System.Type.GetType("System.String");
dc.ColumnName = range.Text.ToString().Trim();
dt.Columns.Add(dc);
range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[1, ++ColumnID];
}

for (int iRow = 2; iRow <= iRowCount; iRow++)
{
DataRow dr = dt.NewRow();
for (int iCol = 1; iCol <= iColCount; iCol++)
{
range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[iRow, iCol];
cellContent = (range.Value2 == null) ? "" : range.Text.ToString();
dr[iCol - 1] = cellContent;
}
dt.Rows.Add(dr);
}
//将数据读入到DataTable中——End
return dt;
}
catch
{
return null;
}
finally
{
workbook.Close(false, oMissiong, oMissiong);
System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);
workbook = null;
app.Workbooks.Close();
app.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(app);
app = null;
}
}

private bool Convert(string sourcePath, string findName, string replaceName)
{
bool result;
object paramMissing = Type.Missing;
Word.ApplicationClass wordApplication = new Word.ApplicationClass();
Word.Document wordDocument = null;
try
{
object paramSourceDocPath = sourcePath;
string paramExportFilePath = System.Environment.CurrentDirectory + @"\" + replaceName + @"\附件_邀请函.pdf";
if (!Directory.Exists(System.Environment.CurrentDirectory + @"\" + replaceName))
{
Directory.CreateDirectory(System.Environment.CurrentDirectory + @"\" + replaceName);
}

Word.WdExportFormat paramExportFormat = Word.WdExportFormat.wdExportFormatPDF;
bool paramOpenAfterExport = false;
Word.WdExportOptimizeFor paramExportOptimizeFor =
Word.WdExportOptimizeFor.wdExportOptimizeForPrint;
Word.WdExportRange paramExportRange = Word.WdExportRange.wdExportAllDocument;
int paramStartPage = 0;
int paramEndPage = 0;
Word.WdExportItem paramExportItem = Word.WdExportItem.wdExportDocumentWithMarkup;
bool paramIncludeDocProps = true;
bool paramKeepIRM = true;
Word.WdExportCreateBookmarks paramCreateBookmarks =
Word.WdExportCreateBookmarks.wdExportCreateWordBookmarks;
bool paramDocStructureTags = true;
bool paramBitmapMissingFonts = false;
bool paramUseISO19005_1 = false;

wordDocument = wordApplication.Documents.Open(
ref paramSourceDocPath, ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing, ref paramMissing,
ref paramMissing);

if (wordDocument != null)
{
#region 替换收件人
object findtext = findName;
object replacewith = replaceName;
object replace= Microsoft.Office.Interop.Word.WdReplace.wdReplaceAll;

wordApplication.Selection.Find.Execute(ref findtext, ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing,
ref replacewith, ref replace,
ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing);
wordDocument.Save();
#endregion

#region 导出pdf
wordDocument.ExportAsFixedFormat(paramExportFilePath,
paramExportFormat, paramOpenAfterExport,
paramExportOptimizeFor, paramExportRange, paramStartPage,
paramEndPage, paramExportItem, paramIncludeDocProps,
paramKeepIRM, paramCreateBookmarks, paramDocStructureTags,
paramBitmapMissingFonts, paramUseISO19005_1,
ref paramMissing);
//导出pdf方法二
//wordApplication.ActiveDocument.SaveAs2(ref Target, ref format,
//  ref Unknown, ref Unknown, ref Unknown,
//ref Unknown, ref Unknown, ref Unknown,
//ref Unknown, ref Unknown, ref Unknown,
//ref Unknown, ref Unknown, ref Unknown,
//ref Unknown, ref Unknown, ref Unknown);
#endregion
}
result = true;
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
return false;
}
finally
{
if (wordDocument != null)
{
wordDocument.Close(ref paramMissing, ref paramMissing, ref paramMissing);
wordDocument = null;
}
if (wordApplication != null)
{
wordApplication.Quit(ref paramMissing, ref paramMissing, ref paramMissing);
wordApplication = null;
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
GC.WaitForPendingFinalizers();
}
return result;
}

private string ReadDocument(string sourcePath)
{
object paramMissing = Type.Missing;
Word.ApplicationClass wordApplication = new Word.ApplicationClass();
Word.Document wordDocument = null;
try
{
object paramSourceDocPath = sourcePath;
object encoding = System.Text.Encoding.UTF8;

wordDocument = wordApplication.Documents.Open(
ref paramSourceDocPath, ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing, ref paramMissing,
ref paramMissing, ref paramMissing, ref paramMissing,
ref paramMissing);

return (wordDocument != null && wordDocument.Content != null && wordDocument.Content.Text != null) ? wordDocument.Content.Text : "";
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
return "";
}
finally
{
if (wordDocument != null)
{
wordDocument.Close(ref paramMissing, ref paramMissing, ref paramMissing);
wordDocument = null;
}
if (wordApplication != null)
{
wordApplication.Quit(ref paramMissing, ref paramMissing, ref paramMissing);
wordApplication = null;
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
GC.WaitForPendingFinalizers();
}
}
private string ReadModehtml(string sourcePath)
{
string strhtmlContent = "";
try
{
System.IO.StreamReader sr = new System.IO.StreamReader(sourcePath);
strhtmlContent = sr.ReadToEnd();
}
catch (Exception ex)
{
return "";
}
return strhtmlContent;
}
private bool SendEmail(string subject,string body,string receiveName,string receiveEmail)
{
try
{
//SmtpClient下的一个对象，用以设置邮件的主题和内容
System.Net.Mail.MailMessage myMail = new System.Net.Mail.MailMessage();
//发送端到接收端的邮箱地址
myMail = new System.Net.Mail.MailMessage(senderEmail, receiveEmail);
myMail.Subject = subject;
myMail.Body = body =body.Replace("张三", receiveName);
myMail.IsBodyHtml = true;
myMail.BodyEncoding = System.Text.Encoding.UTF8;//邮件内容编码

if (!string.IsNullOrEmpty(receiveName))
{
//建立邮件附件类的一个对象，语法格式为System.Net.Mail.Attachment(文件名，文件格式)
System.Net.Mail.Attachment myAttachment = new System.Net.Mail.Attachment(System.Environment.CurrentDirectory + @"\" + receiveName + @"\附件_邀请函.pdf", System.Net.Mime.MediaTypeNames.Application.Octet);

//MIME协议下的一个对象，用以设置附件的创建时间，修改时间以及读取时间
//System.Net.Mime.ContentDisposition disposition = myAttachment.ContentDisposition;
//disposition.CreationDate = System.IO.File.GetCreationTime(file);
//disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);
//disposition.ReadDate = System.IO.File.GetLastAccessTime(file);

//用smtpclient对象里attachments属性，添加上面设置好的myattachment
myMail.Attachments.Add(myAttachment);
}
if (isHaveImg)
{
AlternateView avHtml = AlternateView.CreateAlternateViewFromString
(body, null, MediaTypeNames.Text.Html);
LinkedResource pic1 = new LinkedResource("123.jpg", MediaTypeNames.Image.Jpeg);
pic1.ContentId = "Pic1";
avHtml.LinkedResources.Add(pic1);
myMail.AlternateViews.Add(avHtml);
}
//建立发送对象client,验证邮件服务器，服务器端口，用户名，以及密码
System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient("smtp.163.com", 25);
client.Credentials = new System.Net.NetworkCredential(senderEmail, senderPassword);
client.Timeout = 1000 * 60 * 2;//2分钟
//client.UseDefaultCredentials = false;
client.Send(myMail);
return true;
}
catch (Exception ex)
{
return false;
}
}

private void button1_Click(object sender, EventArgs e)
{
//选择excel文件
OpenFileDialog openFile = new OpenFileDialog();
openFile.Filter = "Excel(*.xlsx)|*.xlsx|Excel(*.xls)|*.xls";
openFile.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
openFile.Multiselect = false;
if (openFile.ShowDialog() == DialogResult.Cancel)
return;
excelFilePath = openFile.FileName;
string fileType = System.IO.Path.GetExtension(excelFilePath);
if (string.IsNullOrEmpty(fileType))
return;
this.textBox1.Text = excelFilePath;
}

private void button2_Click(object sender, EventArgs e)
{
OpenFileDialog openFile = new OpenFileDialog();
openFile.Filter = "Word document(*.doc)|*.doc|Word document(*.docx)|*.docx";
openFile.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
openFile.Multiselect = false;
if (openFile.ShowDialog() == DialogResult.Cancel)
return;
wordExFilePath = openFile.FileName;
string fileType = System.IO.Path.GetExtension(wordExFilePath);
if (string.IsNullOrEmpty(fileType))
return;
this.textBox2.Text = wordExFilePath;
}

private void button3_Click(object sender, EventArgs e)
{
//测试用户密码是否正常，给自己发一封邮件
if (string.IsNullOrEmpty(this.textBox3.Text) || string.IsNullOrEmpty(this.textBox4.Text))
{
MessageBox.Show("笨蛋，邮箱的账户和密码都是必填项！", "Matin大叔提醒你", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
string strContentExFile = ReadDocument(wordExFilePath);
string strContentFile = ReadModehtml(wordFilePath);
if (string.IsNullOrEmpty(strContentExFile) || string.IsNullOrEmpty(strContentFile) || !strContentExFile.Contains("张三") || !strContentFile.Contains("张三"))
{
MessageBox.Show("笨蛋，邮件正文和附件都是必选项，同时都必须以 [张三] 为模板！", "Matin大叔提醒你", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (!strContentExFile.Contains("张三"))
{
MessageBox.Show("笨蛋，邮件附件文件都必须以 [张三] 为模板！", "Matin大叔提醒你", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (!strContentFile.Contains("张三"))
{
MessageBox.Show("笨蛋，邮件正文文件都必须以 [张三] 为模板！", "Matin大叔提醒你", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
senderEmail = this.textBox3.Text.Trim();
senderPassword = this.textBox4.Text.Trim();
this.button3.Enabled = false;
if (SendEmail("测试邮件，不必理我", ReadModehtml(wordFilePath), "", senderEmail))
{
textBox5.Text =  "邮件测试成功！";
button4.Enabled = true;
button3.Enabled = false;
textBox4.Text = "******";
}
else
{
textBox5.Text = "<@.@>邮件发送测试失败，确保账户信息、网络是否正常！";
this.button3.Enabled = true;
}
}

private void button4_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(excelFilePath) || string.IsNullOrEmpty(wordExFilePath) || string.IsNullOrEmpty(wordFilePath))
{
MessageBox.Show("笨蛋，excel和word文件都得选择完备！", "Matin大叔提醒你", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
textBox5.Text += System.Environment.NewLine + "excel中收件人信息读取中......";
System.Data.DataTable dt = GetExcelData();
if (dt == null || dt.Rows.Count == 0)
{
MessageBox.Show("笨蛋，excel文件是不是格式什么有问题，不要随意修改模板！", "Matin大叔提醒你", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
button4.Enabled = false;
textBox5.Text += System.Environment.NewLine + "excel中收件人信息读取完成！收件人合计人数 " + dt.Rows.Count;
textBox5.Text += System.Environment.NewLine + "word邀请函模板读取完成！";
textBox5.Text += System.Environment.NewLine + "word邀请函按照收件人副本制作中......";
string findTextName = "张三";
List<string> listFailedName = new List<string>();
foreach (var DataRow in dt.Rows)
{
DataRow row = DataRow as DataRow;
string sName = row["姓名"].ToString();
string sEmail = row["邮箱"].ToString();
if (Convert(wordExFilePath, findTextName, sName))
{
textBox5.Text += System.Environment.NewLine + string.Format("pdf附件邀请函 [{0}] 已生成成功！", sName);
findTextName = sName;
}
else
{
textBox5.Text += System.Environment.NewLine + string.Format("<@.@>pdf附件邀请函 [{0}] 生成失败，不过，没关系等最后结束后重试！", sName);
listFailedName.Add(sName);
}
}
if (listFailedName != null && listFailedName.Count > 0)
{
foreach (var item in listFailedName)
{
LogHelper.CreateLog(string.Format("pdf附件邀请函 [{0}] 生成失败，不过，没关系等最后结束后重试！", item));
}
}
textBox5.Text += System.Environment.NewLine + string.Format("pdf附件邀请函生成已结束！");
textBox5.Text += System.Environment.NewLine + string.Format("邮件开始发送中......");

List<string> listsendFailedName = null;
listsendFailedName = new List<string>();
foreach (var DataRow in dt.Rows)
{
DataRow row = DataRow as DataRow;
string sName = row["姓名"].ToString();
string sEmail = row["邮箱"].ToString();
if (listFailedName != null && listFailedName.Count > 0 && listFailedName.Contains(sName)) ;
else
{
string docContent = ReadModehtml(wordFilePath);
if (!string.IsNullOrEmpty(docContent))
{
emailSubject = "测试测试主题";
emailBody = docContent;
}
if (SendEmail(emailSubject, emailBody, sName, sEmail))
{
textBox5.Text += System.Environment.NewLine + string.Format("邮件 [{0}] 发送成功！", sName);
}
else
{
textBox5.Text += System.Environment.NewLine + string.Format("<@.@>邮件 [{0}] 发送失败了，不过，没关系等最后结束后重试！", sName);
listsendFailedName.Add(sName);
}
}
}
if (listsendFailedName != null && listsendFailedName.Count > 0)
{
foreach (var item in listsendFailedName)
{
LogHelper.CreateLog(string.Format("邮件 [{0}] 发送失败了，不过，没关系等最后结束后重试！", item));
}
}
textBox5.Text += System.Environment.NewLine + string.Format("邮件发送已结束！");
if ((listFailedName != null && listFailedName.Count > 0) || (listsendFailedName!=null && listsendFailedName.Count>0))
textBox5.Text += System.Environment.NewLine + string.Format("<@.@>邮件发送过程中出现异常，查看异常日志联系Martin大叔");
listFailedName = null;
listsendFailedName = null;
}

private void button5_Click(object sender, EventArgs e)
{
OpenFileDialog openFile = new OpenFileDialog();
openFile.Filter = "Html(*.html)|*.html|Htm(*.htm)|*.htm";
openFile.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
openFile.Multiselect = false;
if (openFile.ShowDialog() == DialogResult.Cancel)
return;
wordFilePath = openFile.FileName;
string fileType = System.IO.Path.GetExtension(wordFilePath);
if (string.IsNullOrEmpty(fileType))
return;
this.textBox6.Text = wordFilePath;
}

private void radioButton2_CheckedChanged(object sender, EventArgs e)
{
if (radioButton2.Checked)
isHaveImg = label5.Visible = true;
else
isHaveImg = label5.Visible = false;
}

参考资料：

http://www.cnblogs.com/Joetao/articles/2933941.html

http://q.cnblogs.com/q/32301/

https://social.msdn.microsoft.com/Forums/office/en-US/b81ff74a-9c22-403c-b62c-5e1aba5106bd/microsoftofficeinteropwordapplicationdocumentsopen-issue-with-filename?forum=worddev

/article/7144575.html

http://bbs.csdn.net/topics/100094640

/article/7957939.html

/article/8733459.html

http://www.jb51.net/article/63486.htm

http://www.jb51.net/article/55465.htm

程序下载