我正在尝试发送没有用户交互的邮件。我创建了以下类:
import java.util.Calendar;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMultipart;
public class MailService {
// public static final String MAIL_SERVER = "localhost";
private String toList;
private String ccList;
private String bccList;
private String subject;
final private static String SMTP_SERVER = "smtp.gmail.com";
final private static String SMTP_TLSENABLE = "true";
final private static String SMTP_AUTH = "true";
final private static String SMTP_PORT = "587";
final private static String SMTP_USERNAME = "mymail@gmail.com";
final private static String SMTP_PASSWORD = "Password";
private String from;
private String txtBody;
private String htmlBody;
private String replyToList;
private boolean authenticationRequired = false;
public MailService(String from, String toList, String subject, String txtBody, String htmlBody) {
this.txtBody = txtBody;
this.htmlBody = htmlBody;
this.subject = subject;
this.from = from;
this.toList = toList;
this.ccList = null;
this.bccList = null;
this.replyToList = null;
this.authenticationRequired = true;
}
public void sendAuthenticated() throws AddressException, MessagingException {
authenticationRequired = true;
send();
}
/**
* Send an e-mail
*
* @throws MessagingException
* @throws AddressException
*/
public void send() throws AddressException, MessagingException {
Properties props = new Properties();
// set the host smtp address
props.put("mail.smtp.host", SMTP_SERVER);
props.put("mail.user", from);
props.put("mail.smtp.starttls.enable", SMTP_TLSENABLE); // needed for gmail
props.put("mail.smtp.auth", SMTP_AUTH); // needed for gmail
props.put("mail.smtp.port", SMTP_PORT); // gmail smtp port
/*Authenticator auth = new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("mobile@mydomain.com", "mypassword");
}
};*/
Session session;
if (authenticationRequired) {
Authenticator auth = new SMTPAuthenticator();
props.put("mail.smtp.auth", SMTP_AUTH);
session = Session.getDefaultInstance(props, auth);
} else {
session = Session.getDefaultInstance(props, null);
}
// get the default session
session.setDebug(true);
// create message
Message msg = new javax.mail.internet.MimeMessage(session);
// set from and to address
try {
msg.setFrom(new InternetAddress(from, from));
msg.setReplyTo(new InternetAddress[]{new InternetAddress(from,from)});
} catch (Exception e) {
msg.setFrom(new InternetAddress(from));
msg.setReplyTo(new InternetAddress[]{new InternetAddress(from)});
}
// set send date
msg.setSentDate(Calendar.getInstance().getTime());
// parse the recipients TO address
java.util.StringTokenizer st = new java.util.StringTokenizer(toList, ",");
int numberOfRecipients = st.countTokens();
javax.mail.internet.InternetAddress[] addressTo = new javax.mail.internet.InternetAddress[numberOfRecipients];
int i = 0;
while (st.hasMoreTokens()) {
addressTo[i++] = new javax.mail.internet.InternetAddress(st
.nextToken());
}
msg.setRecipients(javax.mail.Message.RecipientType.TO, addressTo);
// parse the replyTo addresses
if (replyToList != null && !"".equals(replyToList)) {
st = new java.util.StringTokenizer(replyToList, ",");
int numberOfReplyTos = st.countTokens();
javax.mail.internet.InternetAddress[] addressReplyTo = new javax.mail.internet.InternetAddress[numberOfReplyTos];
i = 0;
while (st.hasMoreTokens()) {
addressReplyTo[i++] = new javax.mail.internet.InternetAddress(
st.nextToken());
}
msg.setReplyTo(addressReplyTo);
}
// parse the recipients CC address
if (ccList != null && !"".equals(ccList)) {
st = new java.util.StringTokenizer(ccList, ",");
int numberOfCCRecipients = st.countTokens();
javax.mail.internet.InternetAddress[] addressCC = new javax.mail.internet.InternetAddress[numberOfCCRecipients];
i = 0;
while (st.hasMoreTokens()) {
addressCC[i++] = new javax.mail.internet.InternetAddress(st
.nextToken());
}
msg.setRecipients(javax.mail.Message.RecipientType.CC, addressCC);
}
// parse the recipients BCC address
if (bccList != null && !"".equals(bccList)) {
st = new java.util.StringTokenizer(bccList, ",");
int numberOfBCCRecipients = st.countTokens();
javax.mail.internet.InternetAddress[] addressBCC = new javax.mail.internet.InternetAddress[numberOfBCCRecipients];
i = 0;
while (st.hasMoreTokens()) {
addressBCC[i++] = new javax.mail.internet.InternetAddress(st
.nextToken());
}
msg.setRecipients(javax.mail.Message.RecipientType.BCC, addressBCC);
}
// set header
msg.addHeader("X-Mailer", "MyMailer");
msg.addHeader("Precedence", "bulk");
// setting the subject and content type
msg.setSubject(subject);
Multipart mp = new MimeMultipart("related");
// set body message
MimeBodyPart bodyMsg = new MimeBodyPart();
bodyMsg.setText(txtBody, "iso-8859-1"); *THIS IS THE ERROR LINE*
bodyMsg.setContent(htmlBody, "text/html");
mp.addBodyPart(bodyMsg);
msg.setContent(mp);
// send it
try {
javax.mail.Transport.send(msg);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* SimpleAuthenticator is used to do simple authentication when the SMTP
* server requires it.
*/
private static class SMTPAuthenticator extends javax.mail.Authenticator {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
String username = SMTP_USERNAME;
String password = SMTP_PASSWORD;
return new PasswordAuthentication(username, password);
}
}
public String getToList() {
return toList;
}
public void setToList(String toList) {
this.toList = toList;
}
public String getCcList() {
return ccList;
}
public void setCcList(String ccList) {
this.ccList = ccList;
}
public String getBccList() {
return bccList;
}
public void setBccList(String bccList) {
this.bccList = bccList;
}
public String getSubject() {
return subject;
}
public void setSubject(String subject) {
this.subject = subject;
}
public void setFrom(String from) {
this.from = from;
}
public void setTxtBody(String body) {
this.txtBody = body;
}
public void setHtmlBody(String body) {
this.htmlBody = body;
}
public String getReplyToList() {
return replyToList;
}
public void setReplyToList(String replyToList) {
this.replyToList = replyToList;
}
public boolean isAuthenticationRequired() {
return authenticationRequired;
}
public void setAuthenticationRequired(boolean authenticationRequired) {
this.authenticationRequired = authenticationRequired;
}
}
我下载了JavaMail http://www.oracle.com/technetwork/java/javamail/index-138643.html和Activation.jar: http://www.oracle.com/technetwork/java/jaf11-139815.html#download
将mail.jar和activation.jar添加到lib文件夹。
但是一旦我调用了下面的活动:
MailService mailer = new MailService("somemail@somemail.com","somemail@somemail.com","Subject","TextBody", "<b>HtmlBody</b>");
try {
mailer.sendAuthenticated();
} catch (Exception e) {
Log.e("MAIL", "Failed sending email.", e);
}
我得到以下错误:
03-25 09:18:37.999: E/dalvikvm(12922): Could not find class 'javax.activation.DataHandler', referenced from method javax.mail.internet.MimeBodyPart.updateHeaders
03-25 09:18:37.999: W/dalvikvm(12922): VFY: unable to resolve new-instance 1138 (Ljavax/activation/DataHandler;) in Ljavax/mail/internet/MimeBodyPart;
03-25 09:18:37.999: D/AndroidRuntime(12922): Shutting down VM
03-25 09:18:37.999: W/dalvikvm(12922): threadid=1: thread exiting with uncaught exception (group=0x40018578)
03-25 09:18:38.009: E/AndroidRuntime(12922): FATAL EXCEPTION: main
03-25 09:18:38.009: E/AndroidRuntime(12922): java.lang.NoClassDefFoundError: javax.activation.DataHandler
我尝试将jar文件添加到构建路径，但仍然相同。有人有什么建议吗?
澄清一下，activation.jar依赖于核心Java rt.jar库中的类，这些类在Android运行时中不提供，因此失败。
JavaMail -android库由第三方开发人员友好地组合在一起，并提供所需的JavaMail功能，而不依赖于此。它们现在可能有点老了(2009年)，但它们对大多数函数都足够有效。