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javamail问题高分相赠！
来源: 互联网 发布时间：2015-01-05
本文导语: 程序可执行 ======================= public static void main(String[] args) { Properties props = System.getProperties(); String smtp = (String)props.get("mail.smtp.host"); if(smtp == null || smtp.equals("")) { props.put("mail.smtp.host", "local...
程序可执行
=======================
public static void main(String[] args)
{
Properties props = System.getProperties();
String smtp = (String)props.get("mail.smtp.host");
if(smtp == null || smtp.equals(""))
{
props.put("mail.smtp.host", "localhost");
System.setProperties(props);
}
Session session = Session.getDefaultInstance(System.getProperties(), null);
MimeMessage msg = new MimeMessage(session);
try
{
msg.setFrom(new InternetAddress("test@test.com"));
msg.setRecipients(Message.RecipientType.TO,InternetAddress.parse("test@test.com", false));
msg.setSubject("subject");
msg.addHeader("Mime-Version","1.0");
MimeBodyPart mbp1 = new MimeBodyPart();
mbp1.setText("Hello");
mbp1.setHeader("Content-Transfer-Encoding","8bit");
mbp1.setHeader("Content-Type","text/plain");
// create the second message part
MimeBodyPart mbp2 = new MimeBodyPart();
// attach the file to the message
FileDataSource fds=new FileDataSource("c:/help.jpg");
mbp2.setDataHandler(new DataHandler(fds));
mbp2.setFileName("help.jpg");
mbp2.setHeader("Content-Transfer-Encoding","base64");
mbp2.setHeader("Content-Type","image/jpeg");
// create the Multipart and its parts to it
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp1);
mp.addBodyPart(mbp2);
// add the Multipart to the message
msg.setContent(mp);
msg.writeTo(new FileOutputStream("c:/windows/temp/mail.txt"));
}catch(Exception e){e.printStackTrace();}
try
{
msg = new MimeMessage(Session.getDefaultInstance(System.getProperties(), null),new FileInputStream("c:/windows/temp/mail.txt"));
Transport.send(msg);
}
catch(Exception e)
{
e.printStackTrace();
}
System.out.println("OK!");
}
==========================================
没有寄出时保存的内容mail.txt
==========================================
From: test@test.com
To: test@test.com
Subject: subject
Mime-Version: 1.0
--62667.991642489220.JavaMail.share@window
Content-Type: text/plain
Content-Transfer-Encoding: 8bit
Hello
--62667.991642489220.JavaMail.share@window
Content-Type: image/jpeg
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename=help.jpg
/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEB
AQEBAQICAQECAQEBAgICAgICAgICAQICAgICAgICAgL/2wBDAQEBAQEBAQEBAQECAQEBAgICAgIC
AgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgL/wAARCAAeADIDASIA
AhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQA
AAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3
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--62667.991642489220.JavaMail.share@window--
===============================================
寄出后的邮件内容
===============================================
Message-ID:
Date: Mon, 4 Jun 2001 07:37:15 +0000 (GMT)
From: test@test.com
To: test@test.com
Subject: subject
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="2521527.991640235900.JavaMail.share@window"
--2521527.991640235900.JavaMail.share@window
Content-Type: text/plain
Content-Transfer-Encoding: 8bit
Hello
--2521527.991640235900.JavaMail.share@window
Content-Type: image/jpeg
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename=help.jpg
name: help.jpg
/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEB
AQEBAQICAQECAQEBAgICAgICAgICAQICAgICAgICAgL/2wBDAQEBAQEBAQEBAQECAQEBAgICAgIC
AgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgL/wAARCAAeADIDASIA
AhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQA
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--2521527.991640235900.JavaMail.share@window--
=======================================
问题：
没有寄出的信通过writeTo()方法写到文件后与寄出的信的内容主要差别是少了
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="2521527.991640235900.JavaMail.share@windows"
这两句。
如何补回这两句到writeTo()的文件里呢，程序里还要加什么吗。搞来搞去还是不能补上这两句到writeTo()后的文件里，望各位帮手！
因为没有这两句话，用
msg = new MimeMessage(Session.getDefaultInstance(System.getProperties(), null),new FileInputStream("c:/windows/temp/mail1.txt"));
后不能正确的区分附件，收信时你就会知道了。
(我不想手工地插这两句话)
=======================
public static void main(String[] args)
{
Properties props = System.getProperties();
String smtp = (String)props.get("mail.smtp.host");
if(smtp == null || smtp.equals(""))
{
props.put("mail.smtp.host", "localhost");
System.setProperties(props);
}
Session session = Session.getDefaultInstance(System.getProperties(), null);
MimeMessage msg = new MimeMessage(session);
try
{
msg.setFrom(new InternetAddress("test@test.com"));
msg.setRecipients(Message.RecipientType.TO,InternetAddress.parse("test@test.com", false));
msg.setSubject("subject");
msg.addHeader("Mime-Version","1.0");
MimeBodyPart mbp1 = new MimeBodyPart();
mbp1.setText("Hello");
mbp1.setHeader("Content-Transfer-Encoding","8bit");
mbp1.setHeader("Content-Type","text/plain");
// create the second message part
MimeBodyPart mbp2 = new MimeBodyPart();
// attach the file to the message
FileDataSource fds=new FileDataSource("c:/help.jpg");
mbp2.setDataHandler(new DataHandler(fds));
mbp2.setFileName("help.jpg");
mbp2.setHeader("Content-Transfer-Encoding","base64");
mbp2.setHeader("Content-Type","image/jpeg");
// create the Multipart and its parts to it
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp1);
mp.addBodyPart(mbp2);
// add the Multipart to the message
msg.setContent(mp);
msg.writeTo(new FileOutputStream("c:/windows/temp/mail.txt"));
}catch(Exception e){e.printStackTrace();}
try
{
msg = new MimeMessage(Session.getDefaultInstance(System.getProperties(), null),new FileInputStream("c:/windows/temp/mail.txt"));
Transport.send(msg);
}
catch(Exception e)
{
e.printStackTrace();
}
System.out.println("OK!");
}
==========================================
没有寄出时保存的内容mail.txt
==========================================
From: test@test.com
To: test@test.com
Subject: subject
Mime-Version: 1.0
--62667.991642489220.JavaMail.share@window
Content-Type: text/plain
Content-Transfer-Encoding: 8bit
Hello
--62667.991642489220.JavaMail.share@window
Content-Type: image/jpeg
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename=help.jpg
/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEB
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AgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgL/wAARCAAeADIDASIA
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--62667.991642489220.JavaMail.share@window--
===============================================
寄出后的邮件内容
===============================================
Message-ID:
Date: Mon, 4 Jun 2001 07:37:15 +0000 (GMT)
From: test@test.com
To: test@test.com
Subject: subject
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="2521527.991640235900.JavaMail.share@window"
--2521527.991640235900.JavaMail.share@window
Content-Type: text/plain
Content-Transfer-Encoding: 8bit
Hello
--2521527.991640235900.JavaMail.share@window
Content-Type: image/jpeg
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename=help.jpg
name: help.jpg
/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEB
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AgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgL/wAARCAAeADIDASIA
AhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQA
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--2521527.991640235900.JavaMail.share@window--
=======================================
问题：
没有寄出的信通过writeTo()方法写到文件后与寄出的信的内容主要差别是少了
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="2521527.991640235900.JavaMail.share@windows"
这两句。
如何补回这两句到writeTo()的文件里呢，程序里还要加什么吗。搞来搞去还是不能补上这两句到writeTo()后的文件里，望各位帮手！
因为没有这两句话，用
msg = new MimeMessage(Session.getDefaultInstance(System.getProperties(), null),new FileInputStream("c:/windows/temp/mail1.txt"));
后不能正确的区分附件，收信时你就会知道了。
(我不想手工地插这两句话)
|
pls try to add msg.saveChanges() before you save it.
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