javax.mail.MessagingException: 501 Syntax: HELO hostname Linux端异常解决
在项目里面使用javamail在window环境正常,放在服务器上面的时候抛出异常javax.mail.MessagingException: 501 Syntax: HELO hostname ,原因是在linux无法解析邮件服务器名称为ip地址,解决方法有二种:
第一种,在linux服务器上面,/etc/hosts
127.0.0.1 localhost ::1 localhost6.localdomain6 localhost6
第二种,在java代码里面配置 props.put("mail.smtp.localhost", "127.0.0.1");这事关键的地方~!
Mail.java
/**
* @author huangjing
* @date 2014-2-13
*/
public class Mail {
static int _PORT = 465; // smtp端口
// static String _SERVER = "smtp.exmail.qq.com"; // smtp服务器地址
static String _SERVER = "113.108.16.119";
// static String _FROM = "[email protected]"; // 发送者
static String _FROM = "养车之家"; // 发送者
static String _USER = "[email protected]"; // 发送者地址
static String _PASSWORD = "邮箱的密码"; // 密码
static String _PC_IP = "127.0.0.1";
}
SendMail.java
public class SendMail {
private static String ERROR_MASSAGE = "邮件发送失败,请稍后再试!";
private static String SUCCESS_MASSAGE = "邮件发送成功!";
private Logger logger = Logger.getLogger(SendMail.class);
/**
* @param args
* @throws UnsupportedEncodingException
*/
public boolean sendMain(String subject, String content, String to)
throws UnsupportedEncodingException {
try {
Properties props = new Properties();
props.put("mail.smtp.host", Mail._SERVER);
props.put("mail.smtp.port", Mail._PORT);
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.localhost", Mail._PC_IP);
Transport transport = null;
Session session = Session.getDefaultInstance(props, null);
transport = session.getTransport("smtp");
transport.connect(Mail._SERVER, Mail._USER, Mail._PASSWORD);
MimeMessage msg = new MimeMessage(session);
msg.setSentDate(new Date());
// InternetAddress fromAddress = new InternetAddress(
// Mail._USER, MimeUtility.encodeText(new String(
// Mail._FROM.getBytes("ISO-8859-1"),
// "UTF-8"), "gb2312", "B"));
InternetAddress fromAddress = new InternetAddress(
Mail._USER, MimeUtility.encodeText(Mail._FROM, "gb2312", "B"));
//编码方式有两种："B"代表Base64、"Q"代表QP（quoted-printable）方式。
msg.setFrom(fromAddress);
InternetAddress toAddress = new InternetAddress(to);
msg.setRecipient(Message.RecipientType.TO, toAddress);
msg.setSubject(subject, "UTF-8");
msg.setText(content, "UTF-8");
msg.saveChanges();
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
} catch (NoSuchProviderException e) {
e.printStackTrace();
logger.error(e.getMessage());
return false;
} catch (MessagingException e) {
e.printStackTrace();
logger.error(e.getMessage());
return false;
}
return true;
}
public boolean sendMainHTML(String subject, String content, String to)
throws UnsupportedEncodingException {
try {
Properties props = new Properties();
props.put("mail.smtp.host", Mail._SERVER);
props.put("mail.smtp.port", Mail._PORT);
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.localhost", Mail._PC_IP);
Transport transport = null;
Session session = Session.getDefaultInstance(props, null);
transport = session.getTransport("smtp");
transport.connect(Mail._SERVER, Mail._USER, Mail._PASSWORD);
MimeMessage msg = new MimeMessage(session);
msg.setSentDate(new Date());
// InternetAddress fromAddress = new InternetAddress(
// Mail._USER, MimeUtility.encodeText(
// new String(Mail._FROM
// .getBytes("ISO-8859-1"), "UTF-8"),
// "gb2312", "B"));
InternetAddress fromAddress = new InternetAddress(
Mail._USER, MimeUtility.encodeText(
Mail._FROM, "gb2312", "B"));
//编码方式有两种："B"代表Base64、"Q"代表QP（quoted-printable）方式。
msg.setFrom(fromAddress);
InternetAddress toAddress = new InternetAddress(to);
msg.setRecipient(Message.RecipientType.TO, toAddress);
msg.setSubject(subject, "UTF-8");
msg.setContent(content, "text/html;charset=UTF-8");
msg.saveChanges();
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
} catch (NoSuchProviderException e) {
e.printStackTrace();
logger.error(e.getMessage(),e);
return false;
} catch (MessagingException e) {
e.printStackTrace();
logger.error(e.getMessage(),e);
return false;
}
return true;
}
}