通过smtp使用java代码发送电子邮件
我得到以下错误和超时异常 输入代码:通过smtp使用java代码发送电子邮件,java,smtp,jakarta-mail,Java,Smtp,Jakarta Mail,我得到以下错误和超时异常 输入代码: Properties props = new Properties(); props.put("mail.smtp.auth", "true"); props.put("mail.smtp.starttls.enable", "true"); props.put("mail.smtp.host","smtp.gmail.com"); props.put("mail.smtp.port", "587"); props.put("mail.debug",
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host","smtp.gmail.com");
props.put("mail.smtp.port", "587");
props.put("mail.debug", "true");
调试SMTP:尝试连接到主机“SMTP.gmail.com”,端口587,isSSL true
Exceptioninthread“main”java.lang.RuntimeException:com.sun.mail.util.MailConnectException:无法连接到主机,端口:smtp.gmail.com,587;超时-1
private static void sendFromGMail(String from, String pass, String[] to, String subject, String body) {
Properties props = System.getProperties();
String host = "smtp.gmail.com";
//String host="localhost";
//props.put("mail.smtp.ssl.trust", "smtp.gmail.com");
props.put("mail.smtp.starttls.enable", "true");
//props.put("mail.smtp.host", host);
props.put("mail.smtp.ssl.trust", host);
props.put("mail.smtp.user", from);
props.put("mail.smtp.password", pass);
props.put("mail.smtp.port", "587");//587
props.put("mail.smtp.auth", "true");
//System.out.println("1");
Session session = Session.getDefaultInstance(props);
MimeMessage message = new MimeMessage(session);
try {
//System.out.println("2");
message.setFrom(new InternetAddress(from));
InternetAddress[] toAddress = new InternetAddress[to.length];
// To get the array of addresses
for( int i = 0; i < to.length; i++ ) {
toAddress[i] = new InternetAddress(to[i]);
}
for( int i = 0; i < toAddress.length; i++) {
message.addRecipient(Message.RecipientType.TO, toAddress[i]);
}
//System.out.println("3");
message.setSubject(subject);
message.setText(body);
// System.out.println("4");
Transport transport = session.getTransport("smtp");
// System.out.println("5");
transport.connect(host, from, pass);
transport.sendMessage(message, message.getAllRecipients());
transport.close();
//System.out.println("sent successfully...");
}
catch (AddressException ae) {
ae.printStackTrace();
}
catch (MessagingException me) {
me.printStackTrace();
}
}
我使用了以下jar文件
java-mail-1.4.4
javamail-smtp-1.4.2
pop3
mail-6.0.0-sources
忽略大多数其他答案和评论,它们是错误的或不相关的。其中很多都包括这些。您的原始代码很好 看 您很可能无法连接,因为存在阻止直接访问的防火墙。JavaMail常见问题解答已经发布
如果您无法直接连接,需要通过代理服务器连接,.发布堆栈跟踪、生成堆栈跟踪的代码等,以重现问题。顺便说一句,您使用代码片段编写简单的英语,反之亦然versa@Aniketsahrawat Properties props=新属性();props.put(“mail.smtp.auth”,“true”);props.put(“mail.smtp.starttls.enable”、“true”);props.put(“mail.smtp.host”,host);props.put(“mail.smtp.port”,port);props.put(“mail.debug”,“true”);host=“smtp.gmail.com”;port=:587;yes..Session Session=Session.getInstance(props,new javax.mail.Authenticator(){protected PasswordAuthentication getPasswordAuthentication(){return new PasswordAuthentication(username,password);}}}};@Maurice perrySo属性“mail.smtp.ssl.trust”会有什么不同?
java-mail-1.4.4
javamail-smtp-1.4.2
pop3
mail-6.0.0-sources