JavaMail smtp.gmail.com ANT 与 Eclipse答案

【问题标题】：JavaMail smtp.gmail.com ANT vs EclipseJavaMail smtp.gmail.com ANT 与 Eclipse
【发布时间】：2016-07-25 18:21:00
【问题描述】：

对于尝试通过 gmail 通过 JavaMail 发送电子邮件的代码，我遇到了一个非常令人沮丧的问题。我的代码在从 Eclipse 运行时可以工作，但是当我通过 Ant 运行时，它无法连接并出现“无法连接到 SMTP 主机，响应 -1”错误。

我在 Eclipse 和 Ant 中使用相同的 JRE，从类路径的角度看没有任何不同。

JavaMail 调试日志如下 - 首先是在 Eclipse 中成功运行；

DEBUG: JavaMail version 1.4.2
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc], com.sun.mail.imap.IMAPSSLStore=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3SSLStore=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc]}
DEBUG: Providers Listed By Protocol: {imaps=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc], pop3s=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]}
DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map
Email Recipients = <email removed>
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 465, isSSL false
220 smtp.gmail.com ESMTP b14sm9639869itd.15 - gsmtp
DEBUG SMTP: connected to host "smtp.gmail.com", port: 465

...现在从 Ant 运行失败；

   [java] Emailing skip report...
     [java] DEBUG: JavaMail version 1.4.2
     [java] DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
     [java] DEBUG: Tables of loaded providers
     [java] DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc], com.sun.mail.imap.IMAPSSLStore=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3SSLStore=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc]}
     [java] DEBUG: Providers Listed By Protocol: {imaps=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc], pop3s=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]}
     [java] DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map
     [java] Email Recipients = <email address hidden>
     [java] DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
     [java] DEBUG SMTP: useEhlo true, useAuth true
     [java] DEBUG SMTP: useEhlo true, useAuth true
     [java] DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 465, isSSL false
     [java] javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1
     [java]     at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1533)
     [java]     at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:453)
     [java]     at javax.mail.Service.connect(Service.java:313)
     [java]     at javax.mail.Service.connect(Service.java:172)
     [java]     at javax.mail.Service.connect(Service.java:121)
     [java]     at javax.mail.Transport.send0(Transport.java:190)
     [java]     at javax.mail.Transport.send(Transport.java:120)
     [java]     at com.diona.skipped.record.EmailReport.sendReportEmail(Unknown Source)
     [java]     at com.diona.skipped.record.SkipAlert.processLogs(Unknown DEBUG SMTP: EOF: [EOF]
     [java] DEBUG SMTP: could not connect to host "smtp.gmail.com", port: 465, response: -1

有什么想法吗？

克里斯

【问题讨论】：

您的工作站是否在代理后面？

标签： java eclipse ant gmail jakarta-mail

【解决方案1】：

您是否在与从 Eclipse 运行时在同一台机器上运行 ant？ JavaMail FAQ 有connection debugging tips。此外，您使用的是非常旧的 JavaMail 版本；如果可以的话，升级到当前版本 1.5.5。

【讨论】：