我知道已经问过这个问题，但我无法使用配置发送电子邮件。我不知道我做错了什么，为什么我没有收到电子邮件。这是我的Spring配置。
@Configuration
@PropertySource(value = {
"classpath:autoalert.properties"
})
@EnableAsync
@Import({PersistenceConfig.class, EmailConfig.class, VelocityConfig.class})
@ComponentScan(basePackageClasses = {
ServiceMarker.class,
RepositoryMarker.class }
)
public class AutoAlertAppConfig {
@Bean
public static PropertySourcesPlaceholderConfigurer propertyConfigInDev() {
return new PropertySourcesPlaceholderConfigurer();
}
}
这是我的电子邮件配置
@Configuration
@PropertySources({
@PropertySource("classpath:email/email.properties")
})
public class EmailConfig {
@Autowired
private Environment env;
@Bean
public JavaMailSender mailSender() {
JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
mailSender.setSession(getEmailSession());
return mailSender;
}
@Bean
public MailMessage mailSettings() {
SimpleMailMessage mailMessage = new SimpleMailMessage();
mailMessage.setFrom(env.getProperty("mail.from"));
...
mailMessage.setText(env.getProperty("mail.body"));
return mailMessage;
}
private Session getEmailSession() {
Properties emailProperties = SpringUtil.loadPropertiesFileFromClassPath("email" + File.separator + "general-mail-settings.properties");
final String userName = emailProperties.getProperty("user");
final String password = emailProperties.getProperty("password");
Session session = null;
try {
session = Session.getInstance(emailProperties, new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(userName, password);
}
}); //end of anonymous class
} catch (Exception e) {
e.printStackTrace();
}
return session;
} //end of getEmailSession()
}
这是我的班级
public static void main(String[] args) {
try (GenericApplicationContext springContext = new AnnotationConfigApplicationContext(AutoAlertAppConfig.class)) {
AutoAlertService autoAlertService = springContext.getBean(AutoAlertServiceImpl.class);
try {
autoAlertService.handleProcess(fromDate, toDate);
} catch (Exception e) {
logger.error("Exception occurs", e);
autoAlertService.handleException(fromDate, toDate, e);
}
} catch (Exception e) {
logger.error("Exception occurs in loading Spring context: ", e);
}
@Service
public class AutoAlertServiceImpl implements AutoAlertService {
@Inject
private AsyncEmailService asyncEmailService;
@Override
public void handleProcess(String fromDate, String toDate) {
logger.info("Start process");
try {
..
//Sending email
asyncEmailService.sendMailWithFileAttachment(fromDate, toDate, file);
} catch (Exception e) {
handleException(fromDate, toDate, e);
}
logger.info("Finish process");
}
}
这是我的电子邮件服务
@Component
public class AsyncEmailServiceImpl implements AsyncEmailService {
@Resource(name="mailSender")
private JavaMailSender mailSender;
@Resource(name="mailSettings")
private SimpleMailMessage simpleMailMessage;
@Async
@Override
public void sendMailWithFileAttachment(String from, String to, String attachFile) {
logger.info("Start execution of async. Sending email with file attachment");
MimeMessage message = mailSender.createMimeMessage();
try{
MimeMessageHelper helper = new MimeMessageHelper(message, true);
....
helper.setText(String.format(simpleMailMessage.getText(), from, to));
FileSystemResource file = new FileSystemResource(attachFile);
helper.addAttachment(file.getFilename(), file);
mailSender.send(message);
} catch (MessagingException e) {
logger.error("Exception occurs in sending email with file attachment: " + attachFile, e);
throw new MailParseException(e);
}
logger.info("Complete execution of async. Email with file attachment " + attachFile + " send successfully.");
}
}
当我运行代码时，它来到方法。这打印在控制台上
13:59:43.004 [main] INFO com.softech.vu360.autoalert.service.impl.AutoAlertServiceImpl - Finish process
13:59:43.005 [SimpleAsyncTaskExecutor-1] INFO com.softech.vu360.autoalert.service.impl.AsyncEmailServiceImpl - Start execution of async. Sending email with file attachment
13:59:43.007 [main] INFO com.softech.vu360.autoalert.AutoAlert - Exiting application.
但我没有收到任何电子邮件。在同步通话的情况下，我收到了电子邮件。为什么我没有收到电子邮件？我做错了吗？
由于
答案 0 :(得分：2)
我认为这是更好的方法。创建一个文件AsyncConfig.java
@Configuration
@EnableAsync(proxyTargetClass = true)
@EnableScheduling
public class AsyncConfig implements SchedulingConfigurer, AsyncConfigurer {
private static final Logger log = LogManager.getLogger();
private static final Logger schedulingLogger = LogManager.getLogger(log.getName() + ".[scheduling]");
@Bean
public ThreadPoolTaskScheduler taskScheduler() {
log.info("Setting up thread pool task scheduler with 20 threads.");
ThreadPoolTaskScheduler scheduler = new ThreadPoolTaskScheduler();
scheduler.setPoolSize(2);
scheduler.setThreadNamePrefix("task-");
scheduler.setAwaitTerminationSeconds(1200); // 20 minutes
scheduler.setWaitForTasksToCompleteOnShutdown(true);
scheduler.setErrorHandler(t -> schedulingLogger.error("Unknown error occurred while executing task.", t));
scheduler.setRejectedExecutionHandler((r, e) -> schedulingLogger.error("Execution of task {} was rejected for unknown reasons.", r));
return scheduler;
}
@Override
public Executor getAsyncExecutor() {
Executor executor = this.taskScheduler();
log.info("Configuring asynchronous method executor {}.", executor);
return executor;
}
@Override
public void configureTasks(ScheduledTaskRegistrar registrar) {
TaskScheduler scheduler = this.taskScheduler();
log.info("Configuring scheduled method executor {}.", scheduler);
registrar.setTaskScheduler(scheduler);
}
@Override
public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
return new SimpleAsyncUncaughtExceptionHandler();
}
}
现在将其导入您的主配置
@Configuration
@PropertySource(value = {
"classpath:autoalert.properties"
})
@Import({AsyncConfig.class, PersistenceConfig.class, EmailConfig.class, VelocityConfig.class})
@ComponentScan(basePackageClasses = {
ServiceMarker.class,
RepositoryMarker.class }
)
public class AutoAlertAppConfig {
@Bean
public static PropertySourcesPlaceholderConfigurer propertyConfigInDev() {
return new PropertySourcesPlaceholderConfigurer();
}
}
将返回类型从void更改为Future
@Service
public class AsyncEmailServiceImpl implements AsyncEmailService {
@Resource(name="mailSender")
private JavaMailSender mailSender;
@Resource(name="mailSettings")
private SimpleMailMessage simpleMailMessage;
@Async
@Override
public Future<String> sendMailWithFileAttachment(String from, String to, String attachFile) {
....
return new AsyncResult<String>("Attachment File successfully send: " + attachFile);
}
@Async
@Override
public Future<String> sendMail(String from, String to, String emailBody) {
....
return new AsyncResult<String>("Email send successfully");
}
}
并在我的服务类中执行此操作
logger.info("Start process");
try {
....
//Sending email
Future<String> result = asyncEmailService.sendMailWithFileAttachment(fromDate, toDate, file);
} catch (Exception e) {
handleException(fromDate, toDate, e);
}
logger.info("Finish process");
请勿查看result.get()。现在当新线程启动并且应用程序开始完成时。我在scheduler.setAwaitTerminationSeconds(1200); // 20 minutes中配置了AsyncConfig.java。这将确保在应用程序关闭之前必须完成所有挂起的线程。当然，这可以根据任何需要进行改变。
现在，当我运行应用程序时，它会在控制台上打印这些
12:55:33.879 [main] INFO com.softech.vu360.autoalert.service.impl.AutoAlertServiceImpl - Finish process
12:55:33.895 [task-1] INFO com.softech.vu360.autoalert.service.impl.AsyncEmailServiceImpl - Start execution of async. Sending email with file attachment
12:58:09.030 [task-1] INFO com.softech.vu360.autoalert.service.impl.AsyncEmailServiceImpl - Complete execution of async. Email with file attachment D:\projects\AutoAlerts\marketo\autoalert 2015-08-24 to 2015-08-30.csv send successfully.
12:58:09.033 [main] INFO com.softech.vu360.autoalert.AutoAlert - Exiting application.
请参阅启动新线程，但在应用程序关闭之前确保，线程完成然后退出应用程序。我为电子邮件配置了20分钟，但是一旦线程完成，应用程序就会关闭。这是幸福的结局：）