发布于 2016-10-29 08:45:40 | 171 次阅读 | 评论: 0 | 来源: 网络整理
下面是一个例子从你的机器上选择附件发送电子邮件。放置到 /home/manisha/ 在本地机器上的 file.txt文件。在这里,我们使用JangoSMPT服务器通过该电子邮件被发送到我们的目标电子邮件地址。
要发送电子邮件,其中包含一个内嵌的图像,遵循的步骤是:
获得一个会话 Session
创建一个默认 MimeMessage 对象,并设置发件人,收件人,主题(From, To, Subject)在消息中。
实际的消息如下:
messageBodyPart.setText("This is message body");
创建一个MimeMultipart的对象。添加上述messageBodyPart与实际的消息在其设置,这个多重对象。
接下来创建一个DataHandler的如下添加附件:
messageBodyPart = new MimeBodyPart();
String filename = "/home/manisha/file.txt";
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
multipart.addBodyPart(messageBodyPart);
接下来设置多重如下消息中:
message.setContent(multipart);
发送使用传输对象的消息。
创建一个Java类文件SendAttachmentInEmail,其内容如下:
package com.yiibai;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
public class SendAttachmentInEmail {
public static void main(String[] args) {
// Recipient's email ID needs to be mentioned.
String to = "destinationemail@gmail.com";
// Sender's email ID needs to be mentioned
String from = "fromemail@gmail.com";
final String username = "manishaspatil";//change accordingly
final String password = "******";//change accordingly
// Assuming you are sending email through relay.jangosmtp.net
String host = "relay.jangosmtp.net";
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", host);
props.put("mail.smtp.port", "25");
// Get the Session object.
Session session = Session.getInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
// Create a default MimeMessage object.
Message message = new MimeMessage(session);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to));
// Set Subject: header field
message.setSubject("Testing Subject");
// Create the message part
BodyPart messageBodyPart = new MimeBodyPart();
// Now set the actual message
messageBodyPart.setText("This is message body");
// Create a multipar message
Multipart multipart = new MimeMultipart();
// Set text message part
multipart.addBodyPart(messageBodyPart);
// Part two is attachment
messageBodyPart = new MimeBodyPart();
String filename = "/home/manisha/file.txt";
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
multipart.addBodyPart(messageBodyPart);
// Send the complete message parts
message.setContent(multipart);
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
} catch (MessagingException e) {
throw new RuntimeException(e);
}
}
}
由于我们使用的是由主机提供商JangoSMTP提供的SMTP服务器,我们需要验证用户名和密码。javax.mail.PasswordAuthentication类用于验证的密码。
现在,我们班是准备好了,让我们编译上面的类。我已经保存了类SendAttachmentInEmail.java到目录:/home/manisha/JavaMailAPIExercise.我们需要的jar文件:javax.mail.jar和activation.jar文件在classpath。执行下面的命令从命令提示符编译类(两个jar被放置在/home/manisha/ 目录下):
javac -cp /home/manisha/activation.jar:/home/manisha/javax.mail.jar: SendAttachmentInEmail.java
现在,这个类被编译,执行下面的命令来运行:
java -cp /home/manisha/activation.jar:/home/manisha/javax.mail.jar: SendAttachmentInEmail
你应该看到下面的消息命令控制台上:
Sent message successfully....
因为我通过JangoSMTP发送邮件到我的Gmail地址,下面的邮件会在我的Gmail帐户的收件箱中接收: