javamail发邮件

下载第三方 jar包

javamail-1.4.7

在button的click事件中加入代码:

	Properties props=new Properties();
				props.put("mail.smtp.host", "smtp.163.com");
				props.put("mail.smtp.socketFactory.port", "465");
				props.put("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");
				props.put("mail.smtp.auth","true");
				props.put("mail.smtp.port","465");
			
				Session session=Session.getDefaultInstance(props,
						new javax.mail.Authenticator(){
						protected javax.mail.PasswordAuthentication getPasswordAuthentication(){
							return new javax.mail.PasswordAuthentication("[email protected]", "password");
						}
					}
				);
				try{
					Message message=new MimeMessage(session);
					message.setFrom(new InternetAddress("[email protected]"));
					message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("[email protected]"));
					message.setSubject("hi this is javamail");
					message.setText("hi javaemail");
					Transport.send(message);
					
					JOptionPane.showMessageDialog(null, "message sent");
					
				}catch (Exception e) {
					JOptionPane.showMessageDialog(null, e);
				}
			

发邮件改写：gui

导入swt包 和 安装WindowBuilder插件From eclipse 如果你用的是netbeans就不用了

在全局中声明变量

String filename1;//附件

button——》 email 

				String From=text.getText();
				String To=text_1.getText();
				String Subject=text_3.getText();
				String Text=text_4.getText();
				
				
				Properties props=new Properties();
				props.put("mail.smtp.host", "smtp.163.com");
				props.put("mail.smtp.socketFactory.port", "465");
				props.put("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");
				props.put("mail.smtp.auth","true");
				props.put("mail.smtp.port","465");
			
				Session session=Session.getDefaultInstance(props,
						new javax.mail.Authenticator(){
						protected javax.mail.PasswordAuthentication getPasswordAuthentication(){
							return new javax.mail.PasswordAuthentication("[email protected]", "password");
						}
					}
				);
				try{
					Message message=new MimeMessage(session);
					message.setFrom(new InternetAddress(From));
					message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(To));
					message.setSubject(Subject);
					//message.setText(Text);
					
					//附件发送部分
					MimeBodyPart meMimeBodyPart=new MimeBodyPart();
					meMimeBodyPart.setText(Text); //文本内容
					Multipart multipart=new MimeMultipart();
					multipart.addBodyPart(meMimeBodyPart);
				
					meMimeBodyPart=new MimeBodyPart();
					javax.activation.DataSource source=new FileDataSource(filename1);
					meMimeBodyPart.setDataHandler(new DataHandler(source));
					meMimeBodyPart.setFileName(text_5.getText());
					multipart.addBodyPart(meMimeBodyPart);
					message.setContent(multipart);
					
					
					
					Transport.send(message);
					JOptionPane.showMessageDialog(null, "message sent");
					
				}catch (Exception e) {
					JOptionPane.showMessageDialog(null, e);
				}
			
			}

button——》attact    //添加附件

				JFileChooser chooser=new JFileChooser();
				chooser.showOpenDialog(null);
				File f= chooser.getSelectedFile();
				filename1=f.getAbsolutePath();
				text_2.setText(filename1);

gmail短收件情况：