Java mail sending program (can be sent to multiple addresses at the same time, can carry attachments), java mail

Source: Internet
Author: User

Java mail sending program (can be sent to multiple addresses at the same time, can carry attachments), java mail
Main Program for sending emails

Import java. util. Properties;
Import common. util. Email_Autherticatorbean;
Import javax. mail. Authenticator;
Import javax. mail. internet. InternetAddress;
Import org. apache. commons. lang. StringUtils;
Import javax. mail. internet. MimeBodyPart;
Import javax. mail. Multipart;
Import javax. activation. FileDataSource;
Import javax. mail. internet. MimeMultipart;
Import javax. activation. DataHandler;
Import javax. mail. internet. MimeUtility;
Import java. util. Date;

* Use the java. mail email sending program

Public class SendMailTest
Public static void main (String [] args)
String title = "titleTest"; // the title of the sent Email
String from = ""; // send from there
String sendTo [] = {"", ""}; // send to there
// The text content of the email, which can contain html tags to display as html pages
String content = "mail test !!!!!! <Br> <a href = #> aaa </a> ";
// Include the attachment and rename the attachment
String fileNames [] = {"F: \ music \ text1.txt,text1.txt", "F: \ music \ text2.txt,text2.txt "};
Try {
// MailSender mailsender = new MailSender ();
Sendmail (title, from, sendTo, content, fileNames, "text/html; charset = gb2312 ");
} Catch (Exception ex) {ex. printStackTrace ();}

Public static void sendmail (String subject, String from, String [] to, String text, String [] filenames, String mimeType) throws Exception
// ResourceBundle mailProps = ResourceBundle. getBundle ("mail"); corresponding parameters can be read from the configuration file
Properties props = new Properties ();

String smtp = ""; // you can specify the smtp used to send emails.
String servername = "sir_znp ";
String serverpawd = "123 ";

Javax. mail. Session mailSession; // mail Session Object
Javax. mail. internet. MimeMessage mimeMsg; // MIME email object

Props = java. lang. System. getProperties (); // obtain the System property object
Props. put ("mail. smtp. host", smtp); // set the SMTP host
Props. put ("mail. smtp. auth", "true"); // verify the server user name and password
// Verify that the user name and password sent are correct on the server
Email_Autherticatorbean myEmailAuther = new Email_Autherticatorbean (servername, serverpaswd );
// Set the email session
MailSession = javax. mail. Session. getInstance (props, (Authenticator) myEmailAuther );
// Set the transmission protocol
Javax. mail. Transport transport = mailSession. getTransport ("smtp ");
// Set information such as from and
MimeMsg = new javax. mail. internet. MimeMessage (mailSession );
If (! StringUtils. isEmpty (from ))
InternetAddress sentFrom = new InternetAddress (from );
MimeMsg. setFrom (sentFrom); // sets the sender address.

InternetAddress [] sendTo = new InternetAddress [to. length];
For (int I = 0; I <to. length; I ++)
System. out. println ("sent to:" + to [I]);
SendTo [I] = new InternetAddress (to [I]);

MimeMsg. setRecipients (javax. mail. internet. MimeMessage. RecipientType. TO, sendTo );
MimeMsg. setSubject (subject, "gb2312 ");

MimeBodyPart messageBodyPart1 = new MimeBodyPart ();
// MessageBodyPart. setText (UnicodeToChinese (text ));
MessageBodyPart1.setContent (text, mimeType );

Multipart multipart = new MimeMultipart (); // The attachment transmission format.
Multipart. addBodyPart (messageBodyPart1 );

For (int I = 0; I <filenames. length; I ++ ){
MimeBodyPart messageBodyPart2 = new MimeBodyPart ();
// Select the name of each attachment
String filename = filenames [I]. split (",") [0];
System. out. println ("attachment name:" + filename );
String displayname = filenames [I]. split (",") [1];
// Obtain the data source
FileDataSource fds = new FileDataSource (filename );
// Obtain the attachment and add it to the BodyPart
MessageBodyPart2.setDataHandler (new DataHandler (fds ));
// Get the same name as BodyPart
// MessageBodyPart2.setFileName (displayname );
// MessageBodyPart2.setFileName (fds. getName ());
MessageBodyPart2.setFileName (MimeUtility. encodeText (displayname ));
Multipart. addBodyPart (messageBodyPart2 );
MimeMsg. setContent (multipart );
// Set the sending date of the mail header
MimeMsg. setSentDate (new Date ());
MimeMsg. saveChanges ();
// Send an email
Transport. send (mimeMsg );
Transport. close ();


Verification class
Package common. util;
Import javax. mail. Authenticator;
Import javax. mail. PasswordAuthentication;
Public class Email_Autherticatorbean extends Authenticator
Private String m_username = null;
Private String m_userpass = null;

Public void setUsername (String username)
M_username = username;

Public void setUserpass (String userpass)
M_userpass = userpass;

Public Email_Autherticatorbean (String username, String userpass)
Super ();
SetUsername (username );
SetUserpass (userpass );

Public PasswordAuthentication getPasswordAuthentication ()

Return new PasswordAuthentication (m_username, m_userpass );

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