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android利用javamail实现后台发送可添加附件的邮件

2012-02-29 15:49 881 查看

android利用javamail实现后台发送可添加附件的邮件

2011-07-24 19:09

android中实现利用javamail的包发送邮件，代码如下
package com.Mail;
import android.app.Activity;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;
public class Mail extends Activity {

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);
//initial

final Button send = (Button) this.findViewById(R.id.send);

final EditText userid = (EditText) this.findViewById(R.id.userid);

final EditText password = (EditText) this.findViewById(R.id.password);

final EditText from = (EditText)this.findViewById(R.id.from);

final EditText to = (EditText)this.findViewById(R.id.to);

final EditText subject = (EditText)this.findViewById(R.id.subject);

final EditText body = (EditText)this.findViewById(R.id.body);
send.setOnClickListener(new View.OnClickListener() {
@Override

public void onClick(View v) {

// TODO Auto-generated method stub
GMailSender sender = new GMailSender("yourid@gmail.com",//userid.getText().toString(),

"password");//password.getText().toString());

try {

sender.sendMail(

//subject.getText().toString(),

"about Hello Wrold by email",

//body.getText().toString(),

"body of the word",

//from.getText().toString(),

"yourid@gmail.com",

//to.getText().toString());

"receipentid@gmail.com");

} catch (Exception e) {

Log.e("SendMail", e.getMessage(), e);

}
}

});

}

}

package com.Mail;
import java.io.ByteArrayInputStream;

import java.io.File;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.Properties;
import javax.activation.DataHandler;

import javax.activation.DataSource;

import javax.activation.FileDataSource;

import javax.mail.Authenticator;

import javax.mail.BodyPart;

import javax.mail.Message;

import javax.mail.Part;

import javax.mail.PasswordAuthentication;

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;
public class GMailSender extends javax.mail.Authenticator {

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

private String user;

private String password;

private Session session;
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.user", this.user);

* props.put("mail.smtp.password", this.password);

*

* 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);

*/
Properties props = new Properties();

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

props.put("mail.smtp.host", mailhost);

props.put("mail.smtp.port", "587");

// Enable authentication if emailProperties.getSmtpUser() is not null

if (this.user != null) {

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

}

props.put("mail.smtp.user", this.user);

props.put("mail.smtp.password", this.password);

props.put("mail.smtp.starttls.enable","true");

/**seesion class

* this class use as the total application environment information

* and collect the Client with the server to build the net connect conversion information

* */

this.session = Session.getDefaultInstance(props, new Authenticator() {

protected PasswordAuthentication getPasswordAuthentication() {

return new PasswordAuthentication("yourid",

"password");

}

});

}
public synchronized void sendMail(String subject, String body,

String sender, String recipients) throws Exception {

MimeMessage message = new MimeMessage(session);

message.setSender(new InternetAddress(sender));

message.setSubject(subject);

message.setText(body);

//add attachment

try

{

MimeMultipart allMultipart = new MimeMultipart("mixed");

MimeBodyPart attachPartPicture = createAttachment("/sdcard/androidManifest.xml");

allMultipart.addBodyPart(attachPartPicture);

message.setContent(allMultipart);

message.saveChanges();

}

catch(Exception e)

{

System.out.print(e.getMessage());

}

//judge multi-recipient or one recipient

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

message.setRecipients(Message.RecipientType.TO, InternetAddress

.parse(recipients));

else

message.setRecipient(Message.RecipientType.TO, new InternetAddress(

recipients));

try {

session.setDebug(true);

Transport.send(message);

} catch (Exception e) {

System.out.println(e.getMessage());

}

}
private static MimeBodyPart createAttachment(String filename) throws Exception {

// TODO Auto-generated method stub

MimeBodyPart attachPart = new MimeBodyPart();

FileDataSource fds = new FileDataSource(filename);

attachPart.setDataHandler(new DataHandler(fds));

attachPart.setFileName(fds.getName());

return attachPart;

}
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");

}
@Override

public String getName() {

// TODO Auto-generated method stub

return null;

}

}
}
可能因为某些参数的问题所以导致代码运行存在一点问题，大家只要修改参数就可以了，我和原代码比较了一下
发现问题在于端口props.put("mail.smtp.port", "587");props.put("mail.smtp.starttls.enable","true");
注意噢，587对应的是startttls，原来的代码中使用的465端口应该使用的是ssl，所以导致原来的代码无法运行。
运行本程序需要的包需要在project->properties->java
build path中导入。

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