java 给多人发送、抄送
关键技术: 1、MimeMessage的setRecipients方法设置邮件的收件人,其中Message.RecipientType.TO常量表示收件人类型是邮件接收者,Message.RecipientType.
CC常量表示收件人类型是抄送者,Message.RecipientType.BCC常量表示收件人的类型是密送着。 2、在调用MimeMessage的setRecipients方法时,除了可以指定收件人的类型外,还可以传入一个数组,指定多个收件人的地址。 SourceCode: import javax.mail.Address; import javax.mail.BodyPart; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Multipart; 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 MultiMailsender { /** * 发送邮件给多个接收者 * @param mailInfo 带发送邮件的信息 * @return */ public static boolean sendMailtoMultiReceiver(MultiMailSenderInfo mailInfo){ MyAuthenticator authenticator = null; if (mailInfo.isValidate()) { authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword()); } Session sendMailSession = Session.getInstance(mailInfo .getProperties(), authenticator); try { Message mailMessage = new MimeMessage(sendMailSession); // 创建邮件发送者地址 Address from = new InternetAddress(mailInfo.getFromAddress()); mailMessage.setFrom(from); // 创建邮件的接收者地址,并设置到邮件消息中 Address[] tos = null; String[] receivers = mailInfo.getReceivers(); if (receivers != null){ // 为每个邮件接收者创建一个地址 tos = new InternetAddress[receivers.length + 1]; tos[0] = new InternetAddress(mailInfo.getToAddress()); for (int i=0; i<receivers.length; i++){ tos[i+1] = new InternetAddress(receivers[i]); } } else { tos = new InternetAddress[1]; tos[0] = new InternetAddress(mailInfo.getToAddress()); } // 将所有接收者地址都添加到邮件接收者属性中 mailMessage.setRecipients(Message.RecipientType.TO, tos); mailMessage.setSubject(mailInfo.getSubject()); mailMessage.setSentDate(new Date()); // 设置邮件内容 Multipart mainPart = new MimeMultipart(); BodyPart html = new MimeBodyPart(); html.setContent(mailInfo.getContent(), "text/html; charset=GBK"); mainPart.addBodyPart(html); mailMessage.setContent(mainPart); // 发送邮件 Transport.send(mailMessage); return true; } catch (MessagingException ex) { ex.printStackTrace(); } return false; } /** * 发送带抄送的邮件 * @param mailInfo 待发送邮件的消息 * @return */ public static boolean sendMailtoMultiCC(MultiMailSenderInfo mailInfo){ MyAuthenticator authenticator = null; if (mailInfo.isValidate()) { authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword()); } Session sendMailSession = Session.getInstance(mailInfo .getProperties(), authenticator); try { Message mailMessage = new MimeMessage(sendMailSession); // 创建邮件发送者地址 Address from = new InternetAddress(mailInfo.getFromAddress()); mailMessage.setFrom(from); // 创建邮件的接收者地址,并设置到邮件消息中 Address to = new InternetAddress(mailInfo.getToAddress()); mailMessage.setRecipient(Message.RecipientType.TO, to); // 获取抄送者信息 String[] ccs = mailInfo.getCcs(); if (ccs != null){ // 为每个邮件接收者创建一个地址 Address[] ccAdresses = new InternetAddress[ccs.length]; for (int i=0; i<ccs.length; i++){ ccAdresses[i] = new InternetAddress(ccs[i]); } // 将抄送者信息设置到邮件信息中,注意类型为Message.RecipientType.CC mailMessage.setRecipients(Message.RecipientType.CC, ccAdresses); } mailMessage.setSubject(mailInfo.getSubject()); mailMessage.setSentDate(new Date()); // 设置邮件内容 Multipart mainPart = new MimeMultipart(); BodyPart html = new MimeBodyPart(); html.setContent(mailInfo.getContent(), "text/html; charset=GBK"); mainPart.addBodyPart(html); mailMessage.setContent(mainPart); // 发送邮件 Transport.send(mailMessage); return true; } catch (MessagingException ex) { ex.printStackTrace(); } return false; } public static void main(String[] args) { // 创建邮件信息 MultiMailSenderInfo mailInfo = new MultiMailSenderInfo(); mailInfo.setMailServerHost("smtp.sina.com.cn"); mailInfo.setMailServerPort("25"); mailInfo.setValidate(true); mailInfo.setUserName("***"); mailInfo.setPassword("***"); mailInfo.setFromAddress("***@sina.com"); mailInfo.setToAddress("***@163.com"); mailInfo.setSubject("MyMail测试"); mailInfo.setContent("我的邮件测试/n/rMy test mail/n/r"); String[] receivers = new String[]{"***@163.com", "***@tom.com"}; String[] ccs = receivers; mailInfo.setReceivers(receivers); mailInfo.setCcs(ccs); MultiMailsender.sendMailtoMultiReceiver(mailInfo); MultiMailsender.sendMailtoMultiCC(mailInfo); } /** * 发送多接收者类型邮件的基本信息 */ public static class MultiMailSenderInfo extends MailSenderInfo{ // 邮件的接收者,可以有多个 private String[] receivers; // 邮件的抄送者,可以有多个 private String[] ccs; public String[] getCcs() { return ccs; } public void setCcs(String[] ccs) { this.ccs = ccs; } public String[] getReceivers() { return receivers; } public void setReceivers(String[] receivers) { this.receivers = receivers; } } }