我必须通过servlet发送电子邮件,我已经尝试过一堆代码,但是没有一个可以使用gmail帐户,任何想法?
java.security.Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
Properties props = new Properties();
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.starttls.enable","true");
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.auth", "true");
Authenticator auth = new SMTPAuthenticator();
//auth = null;
Session sess = Session.getInstance(props, auth);
sess.setDebug(false);
// -- Create a new message --
Message msg = new MimeMessage(sess);
// -- Set the FROM and TO fields --
msg.setFrom(new InternetAddress("myemail@gmail.com"));
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(
"sendtoemail", false));
msg.setSubject("Test");
msg.setText("Yippe");
msg.setSentDate(new Date());
Transport.send(msg);
public class SMTPAuthenticator extends javax.mail.Authenticator {
@Override
public PasswordAuthentication getPasswordAuthentication() {
String username = "myemail@gmail.com";
String password = "mypass";
return new PasswordAuthentication(username, password);
}
}
此代码抛出javax.mail.MessagingException: Could not convert socket to TLS
例外
答案 0 :(得分:4)
只需切换到 commons-email 即可解除此异常。此外,切换到commons-email会减少异常中的有用信息量 - 异常日志中的以下行将不再存在:
nested exception is:
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed:
sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
在这种情况下,真正的领导是在嵌套异常中。
要修复它,您需要将电子邮件服务器证书安装到JVM密钥库。默认密钥库的位置取决于java分发。就我而言,它是/etc/java-6-sun/security/cacert
添加证书后,身份验证成功。
答案 1 :(得分:3)
public static Email createMail(){
Email email = SimpleEmail();
email.setHostName(Settings.getValue("smtp.host"));
email.setSmtpPort(Integer.parseInt(Settings.getValue("smtp.port")));
String username = Settings.getValue("smtp.user");
if (username.length() > 0) {
email.setAuthentication(username, Settings.getValue("smtp.password"));
}
boolean useSSL = false;
try {
useSSL = Boolean.parseBoolean(Settings.getValue("smtp.ssl"));
} catch (Exception ex) {
// ignore - property not set
}
email.setSSL(useSSL);
email.setCharset("utf-8");
return email;
}
public sendMail(String recipientEmail) {
Email email = createMail();
email.addTo(recipientEmail);
email.setFrom("no-reply@example.org");
email.setSubject("Your subject herE");
email.setMsg("Your message here");
email.send();
}