"main "   org.springframework.mail.MailSendException;

在spring中发送邮件问题怎么解决?
程序如下:
package   onlyfun.caterpillar;

import   org.springframework.mail.javamail.JavaMailSenderImpl;
import   org.springframework.mail.SimpleMailMessage;

public   class   SimpleMailDemo   {
        public   static   void   main(String[]   args)   throws   Exception   {
                JavaMailSenderImpl   senderImpl   =   new   JavaMailSenderImpl();
                //   设定   Mail   Server
                senderImpl.setHost( "smtp.163.com ");  
               
                //   建立邮件讯息
                SimpleMailMessage   mailMessage   =   new   SimpleMailMessage();
               
                //   设定收件人、寄件人、主题与内文
                mailMessage.setTo( "xxxxxxx@163.com ");
                mailMessage.setFrom( "xxxxxxxx1@163.com ");
                mailMessage.setSubject( "Test ");
                mailMessage.setText( "This   is   a   test!!! ");
               
                //   传送邮件
                senderImpl.send(mailMessage);
               
                System.out.println( "邮件传送OK.. ");
        }
}

在eclipse执行后,控制台内容如下:
Exception   in   thread   "main "   org.springframework.mail.MailSendException;   nested   exception   details   (1)   are:
Failed   message   1:
com.sun.mail.smtp.SMTPSendFailedException:   553   authentication   is   required,smtp1,wKjRC7C7TAMlDSpGra8jHA==.47118S2   1177160997

at   com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1275)
at   com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:895)
at   com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:524)
at   org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:388)
at   org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:298)
at   org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:284)
at   onlyfun.caterpillar.SimpleMailDemo.main(SimpleMailDemo.java:22)
希望有做过的指点下!谢谢

------解决方案--------------------
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