android 邮件开发(javax.mail)

    以前在csdn上发贴求助android邮件开发的开发，后来问题自己解决了。有很多网友遇到了同样的问题，发邮件问我都没及时回复。在这里我把封存装的email源代码贴出来，和大家分享。
    android开发邮件需要添加三个扩展包：mail.jar,additional.jar,和activation.jar。直接用java开发，则只需前面两个包。两种不同的开发方式，包的版本是不同的。
    封装了一个SMailSender 类，类是Runnable的实现，也就是邮件功能可作为一个线程在后台运行。SMailSender类目前只支持gmail、126和163三种邮箱，如果要支持其他邮箱，可根据邮箱的协议类型进行相应的扩展。

SMailSender.java

package com.jia.test;

import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
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;

import android.util.Log;

public class SMailSender implements Runnable {
	private final String Tag = "SMailSender";
	
    private String mSmtp_host;
    private String mFrom_userName;          
    private String mFrom_passWord;                        
    private String mShow_name = "Jiahe";
    
    private MimeMessage mMimeMsg; 	// 要发送的email信息
	private Session mSession;
    private Multipart mp; 			// 存放邮件的title 内容和附件
    private String mSubject;
    private String mContent;
    private String mToId = null;
    private String mCcId = null;
    private String mBccId = null;
    private String mFilePath = null;
   
    private final int NONE = 0;
    private final int CONNECTING = 1;
    private final int CONNECTED = 2;
    private final int SENDING = 3;
    private final int SENDED = 4;
    private int mState;
    
	public enum MailType {
		TYPE_GMAIL, TYPE_126, TYPE_163, TYPE_QQ;
	}

	private MailType mailType;
    //private Properties props;
    
    /**
     * 构造函数
     * @param hostName
     */
    public SMailSender(){
//    	mSmtp_host = "smtp.gmail.com";
    	mp = new MimeMultipart();
    }
    
    public SMailSender(String hostName){
//    	mSmtp_host = hostName;
    	mp = new MimeMultipart();
    }
    
    /**
     * 设置发件人的用户名和密码
     * 目前只支持gmail、126、163邮箱
     * @param _userName
     * @param _password
     */
    public boolean setAuthor(String _userName, String _password){
    	mFrom_userName = _userName;
    	mFrom_passWord = _password;
    	return setHost(mFrom_userName);		//设置邮箱类型
    }
    
    /**
     * 设置邮件主题
     * @param subject
     */
    public void setSubject(String subject){
    	if(subject!= null)
    		mSubject = subject;
    }
    
    /**
     * 设置邮件内容
     * @param content
     */
    public void setContent(String content){
    	if(content != null)
    		mContent = content;
    }
    
    /**
     * 设置收件人，收件人之间用";"隔开
     * @param to
     * @return
     */
    public void setTo(String toId){
    	mToId = toId;
    }
    
    /**
     * 设置邮件抄送人，抄送人之间用";"隔开
     * @param copyto
     * @return
     */
    public void setCc(String ccId){
    	mCcId = ccId;
    }
    
	/**
	 * 设置暗抄送人，暗抄送人之间用";"隔开
	 * @param bcopyto
	 * @return
	 */
    public void setBcc(String bccId){
    	mBccId = bccId;
    }
    
    public void setShowName(String name){
    	mShow_name = name;
    }
    
    /**
     * 设置附件路径，路径之间用";"隔开
     * @param path
     */
    public void addFileAffix(String path){
    	mFilePath = path;
    }
    
    public int getMailState(){
    	return mState;
    }
    
	@Override
	public void run() {
		executeMailandSend();
	}
	
	
	
    private boolean setSendToMsg(String to) {
		if (to.equals("") || to == null) {
			return false;
		}
		try {
			String sendto[];
			sendto = to.split(";");
			for (int i = 0; i < sendto.length; i++) {
				mMimeMsg.addRecipients(Message.RecipientType.TO,
						InternetAddress.parse(sendto[i]));
			}
			return true;
		} catch (Exception e) {
			return false;
		}
	}

	private boolean setCopyToMsg(String copyto) {
		if (copyto.equals("") || copyto == null) {
			return false;
		}
		try {
			String copy[];
			copy = copyto.split(";");
			for (int i = 0; i < copy.length; i++) {
				mMimeMsg.addRecipients(Message.RecipientType.CC,
						InternetAddress.parse(copy[i]));
			}
			return true;
		} catch (Exception e) {
			return false;
		}
	}
	
	private boolean setBCopyToMsg(String bcopyto){
		if (bcopyto.equals("") || bcopyto == null) {
			return false;
		}
		try {
			String bcopy[];
			bcopy = bcopyto.split(";");
			for (int i = 0; i < bcopy.length; i++) {
				mMimeMsg.addRecipients(Message.RecipientType.BCC,
						InternetAddress.parse(bcopy[i]));
			}
			return true;
		} catch (Exception e) {
			return true;
		}
	}
	
	private boolean setContentMp(String conMp){
		try {
			BodyPart bp = new MimeBodyPart();
			bp.setContent(
					"<meta http-equiv=Context-Type context=text/html;charset=gb2312>"
							+ conMp, "text/html;charset=GB2312");
			mp.addBodyPart(bp);
			return true;
		} catch (Exception e) {
			System.out.println("Set context Faild! " + e);
			return false;
		}
	}
	
	private boolean addFile(String filePath){
//		System.out.println("add affix..");
		if (filePath.equals("") || filePath == null) {
			return false;
		}
		String file[];
		file = filePath.split(";");
//		System.out.println("you have " + file.length + " affix!");
		try {
			for (int i = 0; i < file.length; i++) {
				BodyPart bp = new MimeBodyPart();
				FileDataSource fileds = new FileDataSource(file[i]);
				bp.setDataHandler(new DataHandler(fileds));
				bp.setFileName(fileds.getName());
				mp.addBodyPart(bp);
			}
			return true;
		} catch (Exception e) {
			Log.d(Tag, "add affix: " + filePath + "--faild!" + e);
			System.err.println("add affix: " + filePath + "--faild!" + e);
			return false;
		}
	}
	
	private boolean setHost(String mailAddress){
		if(mailAddress.contains("@gmail.")){
			mSmtp_host = "smtp.gmail.com";
			mailType = MailType.TYPE_GMAIL;
			return true;
		}
		if(mailAddress.contains("@126.")){
			mSmtp_host = "smtp.126.com";
			mailType = MailType.TYPE_126;
			return true;
		}
		if(mailAddress.contains("@163.")){
			mSmtp_host = "smtp.163.com";
			mailType = MailType.TYPE_163;
			return true;
		}
		else
			return false;
/*		if(mailAddress.contains("@qq.")){
			mSmtp_host = "smtp.qq.com";
			mailType = MailType.TYPE_QQ;
		}*/
	}
	
	private void executeMailandSend() {

		try {
			mState = NONE;
			Properties props = System.getProperties();
			props = System.getProperties();
			if(mailType == MailType.TYPE_GMAIL){	//如果为gmail邮箱，需要设置下两项
				props.put("mail.smtp.starttls.enable", "true");
				props.put("mail.smtp.port", "587"); // gmail smtp port 587 / 465
			}
			
			props.put("mail.smtp.host", mSmtp_host);
			props.put("mail.smtp.user", mFrom_userName);
			props.put("mail.smtp.password", mFrom_passWord);
			props.put("mail.smtp.auth", "true");

			mSession = Session.getDefaultInstance(props, null);
			mSession.setDebug(false);

			mMimeMsg = new MimeMessage(mSession);
			mMimeMsg.setFrom(new InternetAddress(mFrom_userName));
			
			//mMimeMsg.setContent(mContent, "text/html;charset=utf-8");		

			if(mToId != null)
				setSendToMsg(mToId);
			if(mCcId != null)
				setCopyToMsg(mCcId);
			if(mBccId != null)
				setBCopyToMsg(mBccId);
			

			if(mSubject != null){
				mMimeMsg.setSubject(mSubject);
			}
			if(mShow_name != null){
				mMimeMsg.setFrom(new InternetAddress(mShow_name + "<"
						+ mFrom_userName + ">"));
			}
			if(mContent != null){
				setContentMp(mContent);
				mMimeMsg.setContent(mp);
			}
			if(mFilePath != null){
				addFile(mFilePath);
			}
			
			
			
			System.out.println(mMimeMsg.getAllRecipients().toString());
			Transport transport = mSession.getTransport("smtp");
			System.out.println("connecting...");
			mState = CONNECTING;
			transport.connect(mSmtp_host, mFrom_userName, mFrom_passWord);
			mState = CONNECTED;
			Log.i(Tag, "Connected to " + mFrom_userName + " succuss");
			System.out.println("sending...");
			mState = SENDING;
			transport.sendMessage(mMimeMsg, mMimeMsg.getAllRecipients());
			mState = SENDED;
			transport.close();
			Log.i(Tag, "Send a mail to " + mToId);
			System.out.println("send an email to " + mToId + " success");
		}
		catch (Exception e) {
			System.out.println("failure! ");
			Log.d(Tag, " failure! ", e);
			e.printStackTrace();	
		}

	}

}

    上面的类调用比较简单，再给一个使用的实例MailBackground.java:

package com.jia.test;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MailBackground extends Activity{

	private EditText mEditText_1;
	private EditText mEditText_2;
	private EditText mEditText_3;
	private EditText mEditText_4;
//	private EditText mEditText_5;
	private Button mButton;
	
	private TextView mTextView;
	
	SMailSender mail;
	
	private int mPreState;
	private int mRealState;
    private Thread thread_mail;
    
    @Override
	public void onBackPressed() {
		super.onBackPressed();
		finish();
	}

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.mail_layout);
		
		mEditText_1 = (EditText)findViewById(R.id.email_num_to);
		mEditText_1.setText("[email protected]");
		mEditText_2 = (EditText)findViewById(R.id.email_num_cc);
		mEditText_2.setText("[email protected]");
		mEditText_3 = (EditText)findViewById(R.id.email_subject);
		mEditText_3.setText("hello, this is a test email");
		mEditText_4 = (EditText)findViewById(R.id.email_text);
		//mEditText_4.setText("您好:\n  this is a test email, you don't need to reply to, thanks for your help!");
		mEditText_4.setText("this is a test email, you don't need");
//		mEditText_5 = (EditText)findViewById(R.id.email_file);
//		mEditText_5.setText("");
		
		mTextView = (TextView)findViewById(R.id.email_file_view);
		
		
		mButton = (Button)findViewById(R.id.button_sendEmail);
		mButton.setOnClickListener(new OnClickListener(){
			@Override
			public void onClick(View v) {
				System.out.println("send clicked");
				String to = mEditText_1.getText().toString();
				String cc = mEditText_2.getText().toString();
				String subject = mEditText_3.getText().toString();
				String content = mEditText_4.getText().toString();
//				String filePath = mEditText_5.getText().toString();
				
				mail = new SMailSender();
				
//		    	mail.setAuthor("[email protected]", "sanditest");
				mail.setAuthor("[email protected]", "sanditest");
				
//				mail.setAuthor("[email protected]", "sanditest");
		    	mail.setShowName("Sandi");
		    	mail.setTo(to);	//密码：sanditest
		    	mail.setCc(cc);
		    	mail.setSubject(subject);
		    	mail.setContent(content);

		    	mRealState = mPreState = 0;
		    	thread_mail = new Thread(mail);
		    	new Thread(r);
		    	thread_mail.start();			//启动发送线程
		    	//thread_state.start();			//启动状态监视线程
		    	Monitor();
			}
        });

	}
	
	Runnable r = new Runnable(){
	
			public void run() {
				while(true){
					try {
						Thread.sleep(100);
						mRealState = mail.getMailState();
						System.out.println("mRealState = " + mRealState);
						if(mRealState == mPreState)
							continue;
						if(1 == mRealState){
							mPreState = mRealState;
							System.out.println("Toast mRealState2 = " + mRealState);
						}
						if(2 == mRealState){
							mPreState = mRealState;
						}
						if(3 == mRealState){
							mPreState = mRealState;
						}
						if(4 == mRealState){		//邮件发送成功，线程退出
							mPreState = mRealState;
							break;
						}
					} catch (InterruptedException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
			}
		};
		
	protected void Monitor() {
		while (true) {
			try {
				Thread.sleep(10);
				mRealState = mail.getMailState();
				//System.out.println("mRealState = " + mRealState);
				if (mRealState == mPreState)
					continue;
				if (1 == mRealState) {
					mPreState = mRealState;
					mTextView.setText("Connecting...");
					System.out.println("Toast mRealState1 = " + mRealState);
					// setTitle("Connecting...");
					Toast.makeText(MailBackground.this, "Connecting",
							Toast.LENGTH_SHORT).show();
					System.out.println("Toast mRealState2 = " + mRealState);
				}
				if (2 == mRealState) {
					mPreState = mRealState;
					mTextView.setText("Connecting success");
					// setTitle("Connected success");
					Toast.makeText(getApplicationContext(), "Connecting",
							Toast.LENGTH_SHORT).show();
				}
				if (3 == mRealState) {
					mPreState = mRealState;
					mTextView.setText("Sending");
					Toast.makeText(getApplicationContext(), "Sending",
							Toast.LENGTH_SHORT).show();
				}
				if (4 == mRealState) { // 邮件发送成功，线程退出
					mPreState = mRealState;
					mTextView.setText("Send email success");
					Toast.makeText(getApplicationContext(), "Send success!",
							Toast.LENGTH_SHORT).show();
					break;
				}
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

}

    OK，你可以发送以上三种格式的邮件了。