Android发邮件代码实例

1.MailSenderActivity.java

import android.util.Log;
import android.view.View;
import android.widget.Button;
public class MailSenderActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        final Button send = (Button) this.findViewById(R.id.send);
        send.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                // TODO Auto-generated method stub
                try {   
                    GMailSender sender = new GMailSender("[e-mail]", "password");
                    sender.sendMail("This is Subject",   
                            "This is Body",   
                            "[e-mail]",   
                            "[e-mail]");   
                } catch (Exception e) {   
                    Log.e("SendMail", e.getMessage(), e);   
                } 
            }
        });
    }
}

2.GmailSender.java

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 com.provider.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 {   
        try{
        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);   
        }catch(Exception e){
        }
    }   
    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");   
        }   
    }   
}  

3.JSSEProvider.java

import java.security.AccessController;
import java.security.Provider;
public final class JSSEProvider extends Provider {
    public JSSEProvider() {
        super("HarmonyJSSE", 1.0, "Harmony JSSE Provider");
        AccessController.doPrivileged(new java.security.PrivilegedAction<Void>() {
            public Void run() {
                put("SSLContext.TLS",
                        "org.apache.harmony.xnet.provider.jsse.SSLContextImpl");
                put("Alg.Alias.SSLContext.TLSv1", "TLS");
                put("KeyManagerFactory.X509",
                        "org.apache.harmony.xnet.provider.jsse.KeyManagerFactoryImpl");
                put("TrustManagerFactory.X509",
                        "org.apache.harmony.xnet.provider.jsse.TrustManagerFactoryImpl");
                return null;
            }
        });
    }
}

以上代码就可以实现任意的邮箱发邮件的功能，当然以上代码运行成功的话需要以下三个jar包，将以下三个jar包下载导入工程即可，如果导入工程后的jar包使工程报错的话，请在该博客下回复留言，本人会作及时回答！

activation.jar

additionnal.jar

mail.jar