使用Oauth2 Gmail连接到SMTP

Question

我正在尝试使用Oauth2 for Gmail连接SMTP，但遇到以下问题。

Oauth令牌和电子邮件名称是正确的，可用于连接IMAP。

我正在关注example of google。

DEBUG SMTP: Authenticate with SASL
DEBUG SMTP: SASL mechanisms allowed: XOAUTH2
DEBUG SMTP: SASL AUTH command trace suppressed
DEBUG SMTP SASL: Mechanisms: XOAUTH2
DEBUG SMTP SASL: No SASL support
DEBUG SMTP: SASL authentication failed
DEBUG SMTP: Attempt to authenticate
DEBUG SMTP: check mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM 
DEBUG SMTP: AUTH LOGIN command trace suppressed
DEBUG SMTP: AUTH LOGIN failed


javax.mail.AuthenticationFailedException: 535-5.7.1 Username and Password not accepted. Learn more at
535 5.7.1 http://support.google.com/mail/bin/answer.py?answer=14257 ol4sm17455809pbb.58

Answer 1

我忘了调用OAuth2Authenticator类的initialize（）方法。

 public static void initialize() {
    Security.addProvider(new OAuth2Provider());
  }