代码完美无缺。但是它不是作为附件发送的图像文件，而是我想附加一个录制的音频，比如a.3gp作为附件存放在存储卡中。这段代码需要对此进行哪些更改？
Mail.java类是
package com.mycomp.android.test;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
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 Mail extends javax.mail.Authenticator {
private Multipart attachements;
private String fromAddress = "x";
private String accountEmail = "x";
private String accountPassword = "";
private String smtpHost = "smtp.gmail.com";
private String smtpPort = "465"; // 465,587
private String toAddresses = "x";
private String mailSubject = "x";
private String mailBody = "x";
public Mail() {
attachements = new MimeMultipart();
}
public Mail(String user, String pass) {
this();
accountEmail = user;
accountPassword = pass;
}
public boolean send() throws Exception {
Properties props = new Properties();
//props.put("mail.smtp.user", d_email);
props.put("mail.smtp.host", smtpHost);
props.put("mail.smtp.port", smtpPort);
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.debug", "true");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.socketFactory.port", smtpPort);
props.put("mail.smtp.socketFactory.class",
"javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
try {
Session session = Session.getInstance(props, this);
session.setDebug(true);
MimeMessage msg = new MimeMessage(session);
// create the message part
MimeBodyPart messageBodyPart = new MimeBodyPart();
//fill message
messageBodyPart.setText(mailBody);
// add to multipart
attachements.addBodyPart(messageBodyPart);
//msg.setText(mailBody);
msg.setSubject(mailSubject);
msg.setFrom(new InternetAddress(fromAddress));
msg.addRecipients(Message.RecipientType.TO,
InternetAddress.parse(toAddresses));
msg.setContent(attachements);
Transport transport = session.getTransport("smtps");
transport.connect(smtpHost, 465, accountEmail, accountPassword);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
return true;
} catch (Exception e) {
return false;
}
}
public void addAttachment(String filename) throws Exception {
BodyPart messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
// messageBodyPart.setFileName("filename");
attachements.addBodyPart(messageBodyPart);
}
@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(accountEmail, accountPassword);
}
/**
* Gets the fromAddress.
*
* @return <tt> the fromAddress.</tt>
*/
public String getFromAddress() {
return fromAddress;
}
/**
* Sets the fromAddress.
*
* @param fromAddress <tt> the fromAddress to set.</tt>
*/
public void setFromAddress(String fromAddress) {
this.fromAddress = fromAddress;
}
/**
* Gets the toAddresses.
*
* @return <tt> the toAddresses.</tt>
*/
public String getToAddresses() {
return toAddresses;
}
/**
* Sets the toAddresses.
*
* @param toAddresses <tt> the toAddresses to set.</tt>
*/
public void setToAddresses(String toAddresses) {
this.toAddresses = toAddresses;
}
/**
* Gets the mailSubject.
*
* @return <tt> the mailSubject.</tt>
*/
public String getMailSubject() {
return mailSubject;
}
/**
* Sets the mailSubject.
*
* @param mailSubject <tt> the mailSubject to set.</tt>
*/
public void setMailSubject(String mailSubject) {
this.mailSubject = mailSubject;
}
/**
* Gets the mailBody.
*
* @return <tt> the mailBody.</tt>
*/
public String getMailBody() {
return mailBody;
}
/**
* Sets the mailBody.
*
* @param mailBody <tt> the mailBody to set.</tt>
*/
public void setMailBody(String mailBody) {
this.mailBody = mailBody;
}
}
SenderActivity类是：
package com.mycomp.android.test;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import android.app.Activity;
import android.app.ProgressDialog;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MailSenderActivity extends Activity {
private static final String GMAIL_EMAIL_ID = "xyz@gmail.com";
private static final String GMAIL_ACCOUNT_PASSWORD = "xyz";
private static final String TO_ADDRESSES = "xyz";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll().build();
StrictMode.setThreadPolicy(policy);
writeFile();
final Button send = (Button) this.findViewById(R.id.send);
send.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
new MailSenderActivity.MailSender().execute();
}
});
}
private File imageFile;
private boolean writeFile() {
imageFile = new File(
getApplicationContext().getFilesDir() + "/images/",
"sample.png");
String savePath = imageFile.getAbsolutePath();
System.out.println("savePath :" + savePath + ":");
FileOutputStream fileOutputStream = null;
try {
fileOutputStream = new FileOutputStream(savePath, false);
} catch (FileNotFoundException ex) {
String parentName = new File(savePath).getParent();
if (parentName != null) {
File parentDir = new File(parentName);
if ((!(parentDir.exists())) && (parentDir.mkdirs()))
try {
fileOutputStream = new FileOutputStream(savePath, false);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
}
// here i am using a png from drawable resources as attachment. You can use your own image byteArray while sending mail.
Bitmap bitmap = BitmapFactory.decodeResource(
MailSenderActivity.this.getResources(), R.drawable.english);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] imgBuffer = stream.toByteArray();
boolean result = true;
try {
fileOutputStream.write(imgBuffer);
fileOutputStream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
result = false;
} catch (IOException e2) {
e2.printStackTrace();
result = false;
} finally {
if (fileOutputStream != null) {
try {
fileOutputStream.close();
} catch (IOException e) {
e.printStackTrace();
result = false;
}
}
}
return result;
}
class MailSender extends AsyncTask<Void, Integer, Integer> {
ProgressDialog pd = null;
/*
* (non-Javadoc)
*
* @see android.os.AsyncTask#onPreExecute()
*/
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
pd = new ProgressDialog(MailSenderActivity.this);
pd.setTitle("Uploading...");
pd.setMessage("Uploading image. Please wait...");
pd.setCancelable(false);
pd.show();
}
/*
* (non-Javadoc)
*
* @see android.os.AsyncTask#doInBackground(Params[])
*/
@Override
protected Integer doInBackground(Void... params) {
Mail m = new Mail(GMAIL_EMAIL_ID, GMAIL_ACCOUNT_PASSWORD);
String toAddresses = TO_ADDRESSES;
m.setToAddresses(toAddresses);
m.setFromAddress(GMAIL_EMAIL_ID);
m.setMailSubject("This is an email sent using my Mail JavaMail wrapper from an Android device.");
m.setMailBody("Email body.");
// try {
// ZipUtility.zipDirectory(new File("/mnt/sdcard/images"),
// new File("/mnt/sdcard/logs.zip"));
// } catch (IOException e1) {
// Log.e("MailApp", "Could not zip folder", e1);
// }
try {
String path = imageFile.getAbsolutePath();
System.out.println("sending path:" + path + ":");
m.addAttachment(path);
// m.addAttachment("/mnt/sdcard/logs.zip");
if (m.send()) {
System.out.println("Message sent");
return 1;
} else {
return 2;
}
} catch (Exception e) {
Log.e("MailApp", "Could not send email", e);
}
return 3;
}
/*
* (non-Javadoc)
*
* @see android.os.AsyncTask#onPostExecute(java.lang.Object)
*/
@Override
protected void onPostExecute(Integer result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
pd.dismiss();
if (result == 1)
Toast.makeText(MailSenderActivity.this,
"Email was sent successfully.", Toast.LENGTH_LONG)
.show();
else if (result == 2)
Toast.makeText(MailSenderActivity.this, "Email was not sent.",
Toast.LENGTH_LONG).show();
else if (result == 3)
Toast.makeText(MailSenderActivity.this,
"There was a problem sending the email.",
Toast.LENGTH_LONG).show();
}
}
}
答案 0 :(得分：0)
在sender activity class中，您可以使用类似的内容将音频文件转换为byte array：
try {
InputStream is = new BufferedInputStream(new FileInputStream("sdcard/bbb.wav"));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] b = new byte[1024];
while ((int bytesRead = is.read(b)) != -1) {
bos.write(b, 0, bytesRead);
}
byte[] bytes = bos.toByteArray();
将其替换为// here i am using a png from drawable resources as attachment. You can use your own image byteArray while sending mail.代码
我没有测试过，但它应该有用。
答案 1 :(得分：0)
您必须将音频文件转换为byte[]格式并通过附件发送：
private byte[] getByteArrayFromAudio(String filePath) throws FileNotFoundException, IOException {
File file = new File(filePath);
System.out.println(file.exists() + "!!");
FileInputStream fis = new FileInputStream(file);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] buf = new byte[1024];
try {
for (int readNum; (readNum = fis.read(buf)) != -1;) {
bos.write(buf, 0, readNum);
System.out.println("read " + readNum + " bytes,");
}
} catch (IOException ex) {
Log.d("error","error");
}
byte[] bytes = bos.toByteArray();
return bytes;
}