java - 在java中向多个收件人发送邮件

Question

我想使用以下方法向多个收件人发送消息：

message.addRecipient(Message.RecipientType.TO, String arg1);

或者

message.setRecipients(Message.RecipientType.TO,String arg1);

但一个困惑是，在第二次争论中，如何传递多个地址，例如：

message.addRecipient(Message.RecipientType.CC, "abc@abc.com,abc@def.com,ghi@abc.com");

或者

message.addRecipient(Message.RecipientType.CC, "abc@abc.com;abc@def.com;ghi@abc.com");

我也可以使用其他方法发送消息，但想知道上述方法的目的。如果我不能使用它（因为到目前为止我还没有得到上述要求的任何答案）那么这个方法需要在邮件 API 中。

score 123 · Accepted Answer

如果您addRecipient多次调用，它将给定收件人添加到给定时间的收件人列表（TO，CC，BCC）

例如：

message.addRecipient(Message.RecipientType.CC, InternetAddress.parse("abc@abc.com"));
message.addRecipient(Message.RecipientType.CC, InternetAddress.parse("abc@def.com"));
message.addRecipient(Message.RecipientType.CC, InternetAddress.parse("ghi@abc.com"));

将 3 个地址添加到 CC

如果您希望一次添加所有地址，您应该使用setRecipientsoraddRecipients并为其提供地址数组

Address[] cc = new Address[] {InternetAddress.parse("abc@abc.com"),
                               InternetAddress.parse("abc@def.com"), 
                               InternetAddress.parse("ghi@abc.com")};
message.addRecipients(Message.RecipientType.CC, cc);

您还可以使用InternetAddress.parse来解析地址列表

message.addRecipients(Message.RecipientType.CC, 
                      InternetAddress.parse("abc@abc.com,abc@def.com,ghi@abc.com"));

score 30 · Accepted Answer

大家好，此代码对我有用，请尝试使用此代码向多个收件人发送邮件

private String recipient = "yamabs@gmail.com ,priya@gmail.com ";
String[] recipientList = recipient.split(",");
InternetAddress[] recipientAddress = new InternetAddress[recipientList.length];
int counter = 0;
for (String recipient : recipientList) {
    recipientAddress[counter] = new InternetAddress(recipient.trim());
    counter++;
}
message.setRecipients(Message.RecipientType.TO, recipientAddress);

score 17 · Accepted Answer

只需使用带有逗号分隔的多个地址的方法 message.setRecipients ：

message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("abc@abc.com,abc@def.com,ghi@abc.com"));

message.setRecipients(Message.RecipientType.CC, InternetAddress.parse("abc@abc.com,abc@def.com,ghi@abc.com"));

只有一个地址也可以正常工作

message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("abc@abc.com"));

score 12 · Accepted Answer

试试这个方法：

message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("mail3@mail.com"));
String address = "mail@mail.com,mail2@mail.com";
InternetAddress[] iAdressArray = InternetAddress.parse(address);
message.setRecipients(Message.RecipientType.CC, iAdressArray);

score 11 · Accepted Answer

您可以使用逗号分隔多个地址

if (cc.indexOf(',') > 0)
    message.setRecipients(Message.RecipientType.CC, InternetAddress.parse(cc));   
else
    message.setRecipient(Message.RecipientType.CC, new InternetAddress(cc));

score 7 · Accepted Answer

Internet 电子邮件地址格式 ( RFC 822)

(,)逗号分隔的地址序列

javax.mail - 1.4.7parse( String[] )是不允许的。所以我们必须将逗号分隔的地址序列赋予InternetAddress对象。地址必须遵循 RFC822 语法。

String toAddress = "mail@mail.com,mail2@mail.com";
InternetAddress.parse( toAddress );

(;)分号分隔的地址序列 « 如果地址列表组带有分隔符，则为“;” 然后使用 split 方法转换为 String 数组以使用以下函数。

String[] addressList = { "mail@mail.com", "mail2@mail.com" };

String toGroup = "mail@mail.com;mail2@mail.com";
String[] addressList2 = toGroup.split(";");

setRecipients(message, addressList);

public static void setRecipients(Message message, Object addresslist) throws AddressException, MessagingException {
    if ( addresslist instanceof String ) { // CharSequence
        message.setRecipients(Message.RecipientType.TO, InternetAddress.parse( (String) addresslist  ));
    } else if ( addresslist instanceof String[] ) { // String[] « Array with collection of Strings/
        String[] toAddressList = (String[]) addresslist;
        InternetAddress[] mailAddress_TO = new InternetAddress[ toAddressList.length ];
        for (int i = 0; i < toAddressList.length; i++) {
            mailAddress_TO[i] = new InternetAddress( toAddressList[i] );
        }
        message.setRecipients(Message.RecipientType.TO, mailAddress_TO);
    }
}

完整示例：

public static Properties getMailProperties( boolean addExteraProps ) {
    Properties props = new Properties();
    props.put("mail.transport.protocol", MAIL_TRNSPORT_PROTOCOL);
    props.put("mail.smtp.host", MAIL_SERVER_NAME);
    props.put("mail.smtp.port", MAIL_PORT);

    // Sending Email to the GMail SMTP server requires authentication and SSL.
    props.put("mail.smtp.auth", true);
    if( ENCRYPTION_METHOD.equals("STARTTLS") ) {
        props.put("mail.smtp.starttls.enable", true);
        props.put("mail.smtp.socketFactory.port", SMTP_STARTTLS_PORT); // 587
    } else {
        props.put("mail.smtps.ssl.enable", true);
        props.put("mail.smtp.socketFactory.port", SMTP_SSL_PORT); // 465
    }
    props.put("mail.smtp.socketFactory", SOCKETFACTORY_CLASS);
    return props;
}

public static boolean sendMail(String subject, String contentType, String msg, Object recipients) throws Exception {

    Properties props = getMailProperties( false );
    Session mailSession = Session.getInstance(props, null);
    mailSession.setDebug(true);

    Message message = new MimeMessage( mailSession );
    message.setFrom( new InternetAddress( USER_NAME ) );

    setRecipients(message, recipients);

    message.setSubject( subject );

    String htmlData = "<h1>This is actual message embedded in HTML tags</h1>";
    message.setContent( htmlData, "text/html");

    Transport transport = mailSession.getTransport( MAIL_TRNSPORT_PROTOCOL );
    transport.connect(MAIL_SERVER_NAME, Integer.valueOf(MAIL_PORT), USER_NAME, PASSWORD);
    message.saveChanges(); // don't forget this

    transport.sendMessage(message, message.getAllRecipients());
    transport.close();
}

使用 Appache SimpleEmail-commons-email-1.3.1

例子：email.addTo( addressList );

public static void sendSimpleMail() throws Exception {
    Email email = new SimpleEmail();
    email.setSmtpPort(587);

    DefaultAuthenticator defaultAuthenticator = new DefaultAuthenticator( USER_NAME, PASSWORD );

    email.setAuthenticator( defaultAuthenticator );
    email.setDebug(false);
    email.setHostName( MAIL_SERVER_NAME );
    email.setFrom( USER_NAME );
    email.setSubject("Hi");
    email.setMsg("This is a test mail ... :-)");

    //email.addTo( "mail@mail.com", "Yash" );
    String[] toAddressList = { "mail@mail.com", "mail2@mail.com" }
    email.addTo( addressList );

    email.setTLS(true);
    email.setStartTLSEnabled( true );
    email.send();
    System.out.println("Mail sent!");
}

score 6 · Accepted Answer

所以...花了好几个月，但仍然...您可以使用“，”作为分隔符和

message.setRecipients(Message.RecipientType.CC, "abc@abc.com,abc@def.com,ghi@abc.com");

没关系。至少在 JavaMail 1.4.5 中

score 5 · Accepted Answer

InternetAddress.Parse is going to be your friend! See the worked example below:

String to = "med@joe.com, maz@frank.com, jezz@jam.com";
String toCommaAndSpaces = "med@joe.com maz@frank.com, jezz@jam.com";

Parse a comma-separated list of email addresses. Be strict. Require comma separated list.
If strict is true, many (but not all) of the RFC822 syntax rules for emails are enforced.
```
msg.setRecipients(Message.RecipientType.CC,
InternetAddress.parse(to, true));
```
Parse comma/space-separated list. Cut some slack. We allow spaces seperated list as well, plus invalid email formats.
```
msg.setRecipients(Message.RecipientType.BCC,
InternetAddress.parse(toCommaAndSpaces, false));
```

score 4 · Accepted Answer

String[] mailAddressTo = new String[3];    
mailAddressTo[0] = emailId_1;    
mailAddressTo[1] = emailId_2;    
mailAddressTo[2] = "xyz@gmail.com";

InternetAddress[] mailAddress_TO = new InternetAddress[mailAddressTo.length];

for (int i = 0; i < mailAddressTo.length; i++)
{
    mailAddress_TO[i] = new InternetAddress(mailAddressTo[i]);
}

message.addRecipients(Message.RecipientType.TO, mailAddress_TO);ress_TO = new InternetAddress[mailAddressTo.length];

score 2 · Accepted Answer

简单的方法

String[] listofIDS={"ramasamygms@gmail.com","ramasamycse94@gmail.com"};

for(String cc:listofIDS) {
    message.addRecipients(Message.RecipientType.CC,InternetAddress.parse(cc));
}

score 1 · Accepted Answer

如果您想使用 MimeMessageHelper 作为抄送发送

List<String> emails= new ArrayList();
email.add("email1");
email.add("email2");
for (String string : emails) {
message.addCc(string);
}

同样，您可以使用添加多个收件人。

score 1 · Accepted Answer

您可以使用以下方法的 n 个收件人：

  String to[] = {"a@gmail.com"} //Mail id you want to send;
  InternetAddress[] address = new InternetAddress[to.length];
  for(int i =0; i< to.length; i++)
  {
      address[i] = new InternetAddress(to[i]);
  }

   msg.setRecipients(Message.RecipientType.TO, address);

java - 在java中向多个收件人发送邮件

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