android实现自动发送邮件

import java.io.File;
 
import java.util.Date;
import java.util.Properties;
 
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
 
public class EmailSender {
 private Properties properties;
 private Session session;
 private Message message;
 private MimeMultipart multipart;
 
 public EmailSender() {
 super();
 this.properties = new Properties();
 }
 public void setProperties(String host,String post){
 //地址
 this.properties.put("mail.smtp.host",host);
 //端口号
 this.properties.put("mail.smtp.post",post);
 //是否验证
 this.properties.put("mail.smtp.auth",true);
 this.session=Session.getInstance(properties);
 this.message = new MimeMessage(session);
 this.multipart = new MimeMultipart("mixed");
 }
 /**
 * 设置收件人
 * @param receiver
 * @throws MessagingException
 */
 public void setReceiver(String[] receiver) throws MessagingException{
 Address[] address = new InternetAddress[receiver.length];
 for(int i=0;i<receiver.length;i++){
  address[i] = new InternetAddress(receiver[i]);
 }
 this.message.setRecipients(Message.RecipientType.TO, address);
 }
 /**
 * 设置邮件
 * @param from 来源
 * @param title 标题
 * @param content 内容
 * @throws AddressException
 * @throws MessagingException
 */
 public void setMessage(String from,String title,String content) throws AddressException, MessagingException{
 this.message.setFrom(new InternetAddress(from));
 this.message.setSubject(title);
 //纯文本的话用setText()就行，不过有附件就显示不出来内容了
 MimeBodyPart textBody = new MimeBodyPart();
 textBody.setContent(content,"text/html;charset=gbk");
 this.multipart.addBodyPart(textBody);
 }
 /**
 * 添加附件
 * @param filePath 文件路径
 * @throws MessagingException
 */
 public void addAttachment(String filePath) throws MessagingException{
 FileDataSource fileDataSource = new FileDataSource(new File(filePath));
 DataHandler dataHandler = new DataHandler(fileDataSource);
 MimeBodyPart mimeBodyPart = new MimeBodyPart();
 mimeBodyPart.setDataHandler(dataHandler);
 mimeBodyPart.setFileName(fileDataSource.getName());
 this.multipart.addBodyPart(mimeBodyPart);
 }
 /**
 * 发送邮件
 * @param host 地址
 * @param account 账户名
 * @param pwd 密码
 * @throws MessagingException
 */
 public void sendEmail(String host,String account,String pwd) throws MessagingException{
 //发送时间
 this.message.setSentDate(new Date());
 //发送的内容，文本和附件
 this.message.setContent(this.multipart);
 this.message.saveChanges();
 //创建邮件发送对象，并指定其使用SMTP协议发送邮件 
 Transport transport=session.getTransport("smtp"); 
 //登录邮箱 
 transport.connect(host,account,pwd); 
 //发送邮件
 transport.sendMessage(message, message.getAllRecipients());
 //关闭连接
 transport.close();
 }
}

import javax.mail.MessagingException;
import javax.mail.internet.AddressException;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
 
public class MainActivity extends Activity {
 
 private Button btnOK; 
  @Override
  protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    btnOK = (Button) findViewById(R.id.button);
    btnOK.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View arg0) {
//        sendEmail();
       //耗时操作要起线程...有几个新手都是这个问题
        new Thread(new Runnable() {
 
       @Override
       public void run() {
        try {
        EmailSender sender = new EmailSender();
        //设置服务器地址和端口，网上搜的到
        sender.setProperties("smtp.163.com", "25");
        //分别设置发件人，邮件标题和文本内容
        sender.setMessage("你的163邮箱账号", "EmailSender", "Java Mail ！");
        //设置收件人
        sender.setReceiver(new String[]{"收件人邮箱"});
        //添加附件
        //这个附件的路径是我手机里的啊，要发你得换成你手机里正确的路径
//        sender.addAttachment("/sdcard/DCIM/Camera/asd.jpg");
        //发送邮件
        sender.sendEmail("smtp.163.com", "你的163邮箱账号", "你的邮箱密码");//<span style="font-family: Arial, Helvetica, sans-serif;">sender.setMessage("你的163邮箱账号", "EmailS//ender", "Java Mail ！");这里面两个邮箱账号要一致</span>
 
        } catch (AddressException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        } catch (MessagingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        }
       }
       }).start();
      }
    });
 
  }
 
}