Message attachment garbled, set the message reply person, set the sender recipient name, send the existing EML file

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Troubleshoot message attachment garbled problem

Associate a data source for attachment 1
	   DataSource DS1 = new Filedatasource ("C:\\Documents and settings\\administrator\\ Desktop \\river.jpg");
	   DataHandler DH1 = new DataHandler (DS1);
	   Attch1.setdatahandler (DH1);
	   The file name must be encoded, otherwise the attachment name will be garbled
	   Attch1.setfilename (Mimeutility.encodetext ("hometown of river. jpg"));

set up a mail reply person

      Set Sender
       Msg.setfrom (New InternetAddress (Mimeutility.encodetext ("Xiao Hua") + "<xh216319@163.com>");
       Set the respondent
       Msg.setreplyto (Internetaddress.parse ("itstar1965@sina.com"));
       Set the recipient and display the Msg.setrecipients (
       recipienttype.to,internetaddress.parse (
    	 mimeutility.encodetext (") with a friendly name ITSTAR ") +" <ITSTAR1965@SINA.COM>, "+mimeutility.encodetext (" Xiao Hua ") +" <xh216319@163.com> ")
    	;

Set Mail Sender recipient name

      Set Sender
       Msg.setfrom (New InternetAddress (Mimeutility.encodetext ("Xiao Hua") + "<xh216319@163.com>");
       Set the respondent
       Msg.setreplyto (Internetaddress.parse ("itstar1965@sina.com"));
       Set the recipient and display the Msg.setrecipients (
       recipienttype.to,internetaddress.parse (
    	 mimeutility.encodetext (") with a friendly name ITSTAR ") +" <ITSTAR1965@SINA.COM>, "+mimeutility.encodetext (" Xiao Hua ") +" <xh216319@163.com> ")
    	;

Complete procedure for solving the above problems

Package edu.mail.util;
Import Java.io.FileOutputStream;
Import java.io.IOException;
Import Java.io.OutputStream;
Import java.util.Properties;
Import Javax.activation.DataHandler;
Import Javax.activation.DataSource;
Import Javax.activation.FileDataSource;
Import Javax.mail.Message;
Import javax.mail.MessagingException;
Import javax.mail.Session;
Import Javax.mail.Message.RecipientType;
Import javax.mail.internet.InternetAddress;
Import Javax.mail.internet.MimeBodyPart;
Import Javax.mail.internet.MimeMessage;
Import Javax.mail.internet.MimeMultipart;

Import javax.mail.internet.MimeUtility; 

	   public class SendMultipartMessageDemo3 {public static void main (string[] args) throws Messagingexception, IOException {
	   Properties Props = new properties ();
	   Session session = Session.getinstance (props);
       Session.setdebug (TRUE);
       Message msg = new MimeMessage (session);
       Msg.setsubject ("The first multipart javaMail"); Set Sender Msg.setfrom (New internetaddress (MimeUtility.encodetext ("Xiao Hua") + "<xh216319@163.com>");
       Set the respondent Msg.setreplyto (Internetaddress.parse ("itstar1965@sina.com")); Set the recipient and display Msg.setrecipients (Recipienttype.to,internetaddress.parse (Mimeutility.encodetext ("ITSTAR") + "with a friendly name
       
	   <itstar1965@sina.com&gt, "+mimeutility.encodetext (" Xiao Hua ") +" <xh216319@163.com> ");
	   Mimemultipart Msgmultipart = new Mimemultipart ("mixed");
	   Msg.setcontent (Msgmultipart);
	   Create a content component and Attch component for the message object MimeBodyPart content = new MimeBodyPart ();
	   MimeBodyPart attch1 = new MimeBodyPart ();
       MimeBodyPart attch2 = new MimeBodyPart ();
	   Add two Attachment objects and body objects to the Msgmultipart object Msgmultipart.addbodypart (content);
	   Msgmultipart.addbodypart (ATTCH1);
	   
	   Msgmultipart.addbodypart (ATTCH2);
	   Associate a data source for attachment 1 DataSource ds1 = new Filedatasource ("C:\\Documents and settings\\administrator\\ Desktop \\river.jpg");
	   DataHandler DH1 = new DataHandler (DS1);
	   Attch1.setdatahandler (DH1); TextThe name must be encoded, otherwise the attachment name will be garbled Attch1.setfilename (Mimeutility.encodetext ("Hometown of the river. jpg"));
	   Associate a data source for attachment 2 DataSource ds2 = new Filedatasource ("C:\\Documents and settings\\administrator\\ Desktop \\mail.bat");
	   DataHandler DH2 = new DataHandler (DS2);
	   Attch2.setdatahandler (DH2);
	   Attch2.setfilename ("Mail.bat"); Because the body content is also a multipart object, its components are related relationships, so content.setcontent (Contentmultipart) Mimemultipart Contentmultipart
	   = new Mimemultipart ("related");
	   Content.setcontent (Contentmultipart);
	   Create Htmlpart components and Gifpart components for contentmultipart mimebodypart Htmlpart = new MimeBodyPart ();
	   MimeBodyPart Gifpart = new MimeBodyPart ();
	   Add the Htmlpart and Gifpart objects to the Contentmultipart object Contentmultipart.addbodypart (Htmlpart);
	   
	   Contentmultipart.addbodypart (Gifpart);
	   DataSource DS3 = new Filedatasource ("C:\\Documents and settings\\administrator\\ Desktop \\2012_03130103.JPG");
	   DataHandler dh3 = new DataHandler (DS3);
	   Gifpart.setdatahandler (DH3); Gifpart.setfilename ("Itstar.GIF ");
	   Gifpart.setheader ("Content-location", "http://www.csdn.net/itstar.gif"); Here src= "Http://www.csdn.net/itstar.gif" is actually pointing to its associated Gifpart object Htmlpart.setcontent ("This is my first composite structure of javamail, my photo <
	   IMG height=100px,width=80px src= ' http://www.csdn.net/itstar.gif '/> "," text/html;charset=utf-8 ");
	   Save the changes made by the message msg.savechanges (); OutputStream Ops = new FileOutputStream ("C:\\Documents and settings\\administrator\\ desktop \ \
         Sendmultipartmessagedemo3.eml ");
	   Writes a message object to the file stream Msg.writeto (OPS);
	Ops.close ();
 }

}

to send an existing EML file

Package edu.mail.util;
Import Java.io.FileInputStream;
Import Java.util.Date;

Import java.util.Properties;
Import Javax.mail.Authenticator;
Import Javax.mail.Message;
Import javax.mail.PasswordAuthentication;
Import javax.mail.Session;
Import Javax.mail.Transport;
Import Javax.mail.Message.RecipientType;
Import javax.mail.internet.InternetAddress;

Import Javax.mail.internet.MimeMessage; public class SendEmlFileDemo4 {public static void main (string[] args) throws Exception {//Create Session object containing network connection information for mail server
			   。
			   Properties Props = new properties ();
			   Props.setproperty ("Mail.transport.protocol", "SMTP");
			   Props.setproperty ("Mail.host", "smtp.163.com");
			   Props.setproperty ("Mail.smtp.auth", "true"); The difference between the/** * getinstance () and the Getdefaultinstance () method: * getinstance () Each call creates a new Session object and returns * Getdefaultins Tance () The first call returns a Session object and sets the session object to the default value, and when the method is called the second time, the default session object is returned **///Because the authenticator class is an abstract class, it can only be Name Inner class form new one authenticatorThe subclass object and overrides its Getpasswordauthentication () method Session session = Session.getinstance (props, New Authenticator ( ) {protected Passwordauthentication getpasswordauthentication () {return new Passwordauthenticati
		    	     On ("xh216319", "Xiaoxiao");
		       }
				}
		       );
		     Set debug mode to print execution process session.setdebug (true);
			  Create a Message object that represents the content of the messages. Message msg = new MimeMessage (session,new fileinputstream ("C:\\Documents and settings\\administrator\\ desktop \ \
			   
		      Sendmultipartmessagedemo3.eml "));
			Transport.send (msg);
 }

}