Question

我正在使用JavaMail 1.5发送邮件，并从我的测试中看到邮件已成功发送。我使用SMTPTransport获取最后一次服务器响应，但它是空的，与代码相同。 getReportSuccess()返回false。

SMTPTransport t = (SMTPTransport)session.getTransport("smtps");
t.send(message);
String response = t.getLastServerResponse();
boolean s = t.getReportSuccess();
int code = t.getLastReturnCode();
return response;

虽然邮件已成功发送，但获得此类响应的原因是什么？

有没有办法获得正确的SMTP响应？

Answer 1

我不确定它是否完全覆盖了这个问题，但是当我浏览SMTPTransport.java时，对getReportSuccess()的描述说：

/**
     * Should we report even successful sends by throwing an exception?
     * If so, a <code>SendFailedException</code> will always be thrown and
     * an {@link com.sun.mail.smtp.SMTPAddressSucceededException
     * SMTPAddressSucceededException} will be included in the exception
     * chain for each successful address, along with the usual
     * {@link com.sun.mail.smtp.SMTPAddressFailedException
     * SMTPAddressFailedException} for each unsuccessful address.
     *
     * @return  true if an exception will be thrown on successful sends.
     *
     * @since JavaMail 1.3.2
     */
    public synchronized boolean getReportSuccess() {
        return reportSuccess;
    }

因此，在我的代码中，要确保已成功完成发送过程，我在发送之前调用setReportSuccess(true);，然后处理异常com.sun.mail.smtp.SMTPAddressSucceededException。以下代码段对我很有用：

public synchronized void sendMail(String subject, String body, String user, String oauthToken, String recipients, String attachment)
{
    try {
        SMTPTransport smtpTransport = connectToSmtp("smtp.gmail.com", 587, user, oauthToken, true);
        MimeMessage message = new MimeMessage(session);

        /*Set whether successful sends should be reported by throwing
        **an exception.
        */
        smtpTransport.setReportSuccess(true);

        /**
        ***All actions to got the formated message
        **/

        /*Send message*/
        smtpTransport.sendMessage(message, message.getAllRecipients());
    } catch(android.os.NetworkOnMainThreadException e){
        Log.d("MY_LOG","NetworkOnMainThreadException");
    }
    catch(com.sun.mail.smtp.SMTPAddressSucceededException e){
        /**
        ***Message has been sent. Do what you need.
        **/         
    }
    catch (Exception e) {
        Log.d("MY_LOG", e.getMessage());
    }
}

如何使用JavaMail获取SMTP服务器响应？

1 个答案: