Android客户端后台发送邮件（JMail)

今天在做项目的时候要处理用户注册问题，里面有个邮箱验证，网上找了一下果然有人做过，但是我拿过来都运行不起来，或者是发送不了邮件。后来我对这个浅浅的研究了一下，贴出来和大家共享。

Activity

package e.m;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.Button;public class MailSenderActivity extends Activity {/** Called when the activity is first created. */@Overridepublic 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 stubtry {GMailSender sender = new GMailSender("[e-mail]","xxxxxx");sender.sendMail("This is Subject", "This is Body","[e-mail]", "[e-mail]");} catch (Exception e) {Log.e("SendMail", e.getMessage(), e);}}});}}

package e.m;import java.io.ByteArrayInputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.security.Security;import java.util.Properties;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;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 e.m.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");        }    }}   

package e.m;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;             }         });     } } 

如果是4.0以上请将以下代码放到线程中运行。

try {GMailSender sender = new GMailSender("[e-mail]","xxxxxx");sender.sendMail("This is Subject", "This is Body","[e-mail]", "[e-mail]");} catch (Exception e) {Log.e("SendMail", e.getMessage(), e);}

注意：这里我用的是google邮箱，如果要换其他邮箱，要在代码中设置相应的服务器。