我目前正在尝试实现Gmail API，以将电子邮件和附件文件发送到一组地址。
我实现Gmail API的代码如下：
public class GMailSender extends javax.mail.Authenticator {
private String _user;
private String _pass;
private String[] _to;
private String _from;
private String _port;
private String _sport;
private String _host;
private String _subject;
private String _body;
private boolean _auth;
private boolean _debuggable;
private Multipart _multipart;
public GMailSender() {
if (rb1 != null && rad.isChecked()){
message=s1;
}else if(rb1 != null && rad1.isChecked())
{
message=item;
}
_host = "smtp.gmail.com"; // default smtp server
_port = "465"; // default smtp port
_sport = "465"; // default socketfactory port
_user = "abhishek.roychoudhury69@gmail.com"; // username
_pass = "abhishekcena"; // password
_from = "abhishek.roychoudhury69@gmail.com"; // email sent from
_subject = s3; // email subject
_body = message; // email body
_debuggable = false; // debug mode on or off - default off
_auth = true; // smtp authentication - default on
_multipart = new MimeMultipart();
// There is something wrong with MailCap, javamail can not find a handler for the multipart/mixed part, so this bit needs to be added.
MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap();
mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");
mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");
mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");
mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");
mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");
CommandMap.setDefaultCommandMap(mc);
}
public GMailSender(String user, String pass) {
this();
_user = user;
_pass = pass;
}
public boolean send() throws Exception {
Properties props = _setProperties();
if(!_user.equals("") && !_pass.equals("") && _to.length > 0 && !_from.equals("") && !_subject.equals("") && !_body.equals("")) {
Session session = Session.getInstance(props, this);
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(_from));
InternetAddress[] addressTo = new InternetAddress[_to.length];
for (int i = 0; i < _to.length; i++) {
addressTo[i] = new InternetAddress(_to[i]);
}
msg.setRecipients(MimeMessage.RecipientType.TO, addressTo);
msg.setSubject(_subject);
// msg.setSentDate(new Date());
// setup message body
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText(_body);
_multipart.addBodyPart(messageBodyPart);
// Put parts in message
msg.setContent(_multipart);
// send email
Transport.send(msg);
Log.d("The message is:", String.valueOf(msg));
return true;
} else {
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);
_multipart.addBodyPart(messageBodyPart);
}
@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(_user, _pass);
}
private Properties _setProperties() {
Properties props = new Properties();
props.put("mail.smtp.host", _host);
if(_debuggable) {
props.put("mail.debug", "true");
}
if(_auth) {
props.put("mail.smtp.auth", "true");
}
props.put("mail.smtp.port", _port);
props.put("mail.smtp.socketFactory.port", _sport);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
return props;
}
// the getters and setters
public String getBody() {
return _body;
}
public void setBody(String _body) {
this._body = _body;
}
public void setTo(String[] toArr) {
// TODO Auto-generated method stub
this._to=toArr;
}
public void setFrom(String string) {
// TODO Auto-generated method stub
this._from=string;
}
public void setSubject(String string) {
// TODO Auto-generated method stub
this._subject=string;
}
// more of the getters and setters …..
}
从另一个活动中调用GmailSender函数的代码：
GMailSender m = new GMailSender("abhishek.roychoudhury69@gmail.com", "abhishekcena");
s4=editText.getText().toString();
String[] toArr = {s4}; //s4 is the edittext.getText().toString() field.
m.setTo(toArr);
m.setFrom("abhishek.roychoudhury69@gmail.com");
m.setSubject(s3);
m.setBody(message);
for (int i = 0; i < toArr.length; i++) {
try {
m.addAttachment(path);
if (m.send()) {
Toast.makeText(context, "Email was sent successfully :)", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(context, "Email was not sent :(", Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
//Toast.makeText(context, "There was a problem sending the email.", Toast.LENGTH_LONG).show();
Log.e("MailApp", "Could not send email", e);
}
}
问题是，假设我在editText字段s4中输入2个电子邮件ID（例如：“ xyz@abc.co.in，acb.123@gmail.com”），则出现错误此格式：
javax.mail.internet.AddressException: Illegal address in string ``xyz@abc.co.in, acb.123@gmail.com''
at javax.mail.internet.InternetAddress.<init>(InternetAddress.java:108)
但是，如果我将与参数相同的电子邮件作为参数发送给toArr[]（即toArr[]={"xyz@abc.co.in, acb.123@gmail.com"}），则会发送电子邮件。为什么？
答案 0 :(得分：1)
您的setTo方法需要一个字符串数组，每个字符串仅包含一个电子邮件地址。
如果要允许在单个文本字段中输入多个电子邮件地址，从而出现在单个字符串中，请将setTo方法更改为采用单个String，然后在MimeMessage.setRecipients方法中使用该字符串
当您在那里清理从其他位置复制的代码时，还应该修复所有这些common JavaMail mistakes。
答案 1 :(得分：0)
正如@Mark Rotteveel所说，setTo（）方法将整个文本字段作为一个数组。我所做的是，我首先根据“，”符号拆分了电子邮件文本字段。之后，我将分割后的数组的每个值放入另一个数组，并将其设置为setTo（）方法的参数。结果，现在将每个电子邮件ID都作为一个数组。
String splitedemail[]=new String[5];
for(int i=0;i<splitedemail.length;i++) {
s4 = text3.getText().toString();
splitedemail=s4.split(",");
}
for( i=0;i<splitedemail.length;i++) {
toArr[i] = splitedemail[i];
String arr[] = {toArr[i]};
m.setTo(arr);
m.setFrom("abhishek.roychoudhury69@gmail.com");
m.setSubject(s3);
m.setBody(message);
try {
m.addAttachment(path);
if (m.send()) {
Toast.makeText(context, "Email was sent successfully :)", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(context, "Email was not sent :(", Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
//Toast.makeText(context, "There was a problem sending the email.", Toast.LENGTH_LONG).show();
Log.e("MailApp", "Could not send email", e);
}
}