我的代码：
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class SendMailTLS {
public static void main(String[] args) {
final String username = "myemailid@gmail.com";
final String password = "myemailpassword";
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");
Session session = Session.getInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("myemailid@gmail.com"));
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse("myfriedemail@ymail.com"));
message.setSubject("Testing Subject");
message.setText("Dear Mail Crawler,"+
"\n\n No spam to my email,please!");
Transport.send(message);
System.out.println("Done");
} catch (MessagingException e) {
throw new RuntimeException(e);
}
}
}
我的错误：
主线程中的异常java.lang.RuntimeException：javax.mail.MessagingException：
未知的SMTP主机：smtp.gmail.com;
嵌套异常是：
java.net.UnknownHostException：smtp.gmail.com
at Mail.SendMailTLS.main(SendMailTLS.java:56)
引起的原因是：javax.mail.MessagingException：未知的SMTP主机：smtp.gmail.com；
嵌套异常是：
java.net.UnknownHostException：smtp.gmail.com
at com.sun.mail.smtp.SMTPTransport.openServer（SMTPTransport.java:1970）
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:642)
at javax.mail.Service.connect(Service.java:317)
at javax.mail.Service.connect(Service.java:176)
at javax.mail.Service.connect(Service.java:125)
at javax.mail.Transport.send0(Transport.java:194)
at javax.mail.Transport.send(Transport.java:124)
at Mail.SendMailTLS.main(SendMailTLS.java:51)
引起的原因是：java.net.UnknownHostException：smtp.gmail.com
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:525)
at java.net.Socket.connect(Socket.java:475)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:319)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:233)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1938)
... 7 more
Java结果：1
我使用本地代理172.17.0.4:8080，用户名为：user1，密码为：user2。
请问有什么解决方案？