具體使用方法請(qǐng)看：

http://www.oschina.net/code/snippet_12_983

1.[代碼]GMailSender.java

package org.apache.android.mail;

import javax.activation.DataHandler;

import javax.activation.DataSource;

import javax.mail.Message;

import javax.mail.PasswordAuthentication;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import java.io.ByteArrayInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.security.Security;

import java.util.Properties;

public class GMailSender extends javax.mail.Authenticator {

private String mailhost = "smtp.gmail.com";

private String user;

private String password;

private Session session;

static {

Security.addProvider(new org.apache.harmony.xnet.provider.jsse.JSSEProvider());

}

public GMailSender(String user, String password) {

this.user = user;

this.password = password;

Properties props = new Properties();

props.setProperty("mail.transport.protocol", "smtp");

props.setProperty("mail.host", mailhost);

props.put("mail.smtp.auth", "true");

props.put("mail.smtp.port", "465");

props.put("mail.smtp.socketFactory.port", "465");

props.put("mail.smtp.socketFactory.class",

"javax.net.ssl.SSLSocketFactory");

props.put("mail.smtp.socketFactory.fallback", "false");

props.setProperty("mail.smtp.quitwait", "false");

session = Session.getDefaultInstance(props, this);

}

protected PasswordAuthentication getPasswordAuthentication() {

return new PasswordAuthentication(user, password);

}

public synchronized void sendMail(String subject, String body,

String sender, String recipients) throws Exception {

MimeMessage message = new MimeMessage(session);

DataHandler handler = new DataHandler(new ByteArrayDataSource(body.getBytes(), "text/plain"));

message.setSender(new InternetAddress(sender));

message.setSubject(subject);

message.setDataHandler(handler);

if (recipients.indexOf(',') > 0)

message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));

else

message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));

Transport.send(message);

}

public class ByteArrayDataSource implements DataSource {

private byte[] data;

private String type;

public ByteArrayDataSource(byte[] data, String type) {

super();

this.data = data;

this.type = type;

}

public ByteArrayDataSource(byte[] data) {

super();

this.data = data;

}

public void setType(String type) {

this.type = type;

}

public String getContentType() {

if (type == null)

return "application/octet-stream";

else

return type;

}

public InputStream getInputStream() throws IOException {

return new ByteArrayInputStream(data);

}

public String getName() {

return "ByteArrayDataSource";

}

public OutputStream getOutputStream() throws IOException {

throw new IOException("Not Supported");

}

}

}

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