更新 大家好，
我终于可以通过更改添加收件人的方式来解决此问题。不知道为什么这个工作与锅炉板相反，但这让我通过了这个障碍。希望这能为那些遇到类似问题的人提供帮助。
@Async
public void sendEmail(String to, String sendFrom, String subject, String content) {
log.debug("Send e-mail to '{}' with subject '{}' and content={}",
to, subject, content);
// Prepare message using a Spring helper
MimeMessage mimeMessage = javaMailSender.createMimeMessage();
try {
mimeMessage.setRecipients(Message.RecipientType.TO, to);
mimeMessage.setContent(content, MediaType.TEXT_HTML_VALUE);
mimeMessage.setFrom(new InternetAddress(sendFrom));
mimeMessage.setSubject(subject);
javaMailSender.send(mimeMessage);
log.debug("Sent e-mail to '{}'", to);
} catch (Exception e) {
log.warn("E-mail could not be sent to '{}', exception is: {}", to, e.getMessage());
}
}
原始帖子
经过几天的研究并接触到我认识的更多高级开发人员，我终于来到这里寻求帮助了。非常感谢任何输入或帮助！
我正在使用JHipster堆栈提供的MailService。
该应用程序正在使用我的个人电子邮件。它有2步认证，所以我不需要允许不太安全的应用程序，因为我通过应用程序密码直接给我的应用程序密码。 IMAP和POP已启用。
据我所知，我能够正确连接，我无法发送给收件人。我在不同的域尝试过不同的电子邮件而没有运气。如果我将应用程序密码更改为我的原始密码，则会抱怨说必须使用应用专用密码。所以这让我确信我正在验证/正确连接。
拉动源代码和调试使我在 JavaMailSenderImpl 中带到 doSend ，并且 mimeMessage.getAllRecipients（）
我的控制台显示：
[DEBUG] com.myapp.aop.logging.LoggingAspect - Enter: com.myapp.service.MailService.sendEmail() with argument[s] = [myemail@gmail.com, myemail@gmail.com, hi, false, true]
[DEBUG] com.myapp.service.MailService - Send e-mail[multipart 'false' and html 'true'] to 'myemail@gmail.com' with subject 'subjecthi' and content=hi
[DEBUG] com.sun.mail.smtp - useEhlo true, useAuth true
[DEBUG] com.sun.mail.smtp - trying to connect to host "smtp.gmail.com", port 587, isSSL false
[DEBUG] com.sun.mail.smtp - connected to host "smtp.gmail.com", port: 587
[DEBUG] com.sun.mail.smtp - Found extension "SIZE", arg "35882577"
[DEBUG] com.sun.mail.smtp - Found extension "8BITMIME", arg ""
[DEBUG] com.sun.mail.smtp - Found extension "STARTTLS", arg ""
[DEBUG] com.sun.mail.smtp - Found extension "ENHANCEDSTATUSCODES", arg ""
[DEBUG] com.sun.mail.smtp - Found extension "PIPELINING", arg ""
[DEBUG] com.sun.mail.smtp - Found extension "CHUNKING", arg ""
[DEBUG] com.sun.mail.smtp - Found extension "SMTPUTF8", arg ""
[DEBUG] com.sun.mail.smtp - Found extension "SIZE", arg "35882577"
[DEBUG] com.sun.mail.smtp - Found extension "8BITMIME", arg ""
[DEBUG] com.sun.mail.smtp - Found extension "AUTH", arg "LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN XOAUTH"
[DEBUG] com.sun.mail.smtp - Found extension "ENHANCEDSTATUSCODES", arg ""
[DEBUG] com.sun.mail.smtp - Found extension "PIPELINING", arg ""
[DEBUG] com.sun.mail.smtp - Found extension "CHUNKING", arg ""
[DEBUG] com.sun.mail.smtp - Found extension "SMTPUTF8", arg ""
[DEBUG] com.sun.mail.smtp - Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM
[WARN] com.myapp.service.MailService - E-mail could not be sent to user 'myemail@gmail.com', exception is: Failed messages: javax.mail.SendFailedException: No recipient addresses
[DEBUG] com.myapp.aop.logging.LoggingAspect - Exit: com.myapp.service.MailService.sendEmail() with result = null
我提供以下文件：
application.yml
# Disable the spring security default configuration from spring-boot-actuator
management.security.enabled: true
security.basic.enabled: false
# Disable Jolokia - An http/json bridge for remote JMX access
endpoints.jolokia.enabled: false
# security configuration (this key should be unique for your application, and kept secret)
jhipster.security.rememberme.key: securitykey
StripeSecretApiKey: mystripekey
async:
corePoolSize: 2
maxPoolSize: 50
queueCapacity: 10000
mail:
host: smtp.gmail.com
port: 587
username: myemail@gmail.com
password: myapppassword
protocol: smtp
tls: true
auth: true
from: mydomainemail@gmail.com
authentication:
oauth:
clientid: mydomainapp
secret: mysecret
# Token is valid 2 hours
tokenValidityInSeconds: 7200
swagger:
title: mydomain API
description: mydomain applications and beyond!
termsOfServiceUrl: http://jhipster.github.io/
contact:
license: Apache 2.0
licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.html
OrderResource.java调用邮件服务
mailService.sendEmail("myemail@gmail.com", "subject hi", "hi",false, true);
MailConfiguration.java
package com.myapp.config;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.bind.RelaxedPropertyResolver;
import org.springframework.context.EnvironmentAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import java.util.Properties;
@Configuration
public class MailConfiguration implements EnvironmentAware {
private static final String ENV_SPRING_MAIL = "mail.";
private static final String DEFAULT_HOST = "127.0.0.1";
private static final String PROP_HOST = "host";
private static final String DEFAULT_PROP_HOST = "localhost";
private static final String PROP_PORT = "port";
private static final String PROP_USER = "username";
private static final String PROP_PASSWORD = "password";
private static final String PROP_PROTO = "protocol";
private static final String PROP_TLS = "tls";
private static final String PROP_AUTH = "auth";
private static final String PROP_SMTP_AUTH = "mail.smtp.auth";
private static final String PROP_STARTTLS = "mail.smtp.starttls.enable";
private static final String PROP_TRANSPORT_PROTO = "mail.transport.protocol";
private final Logger log = LoggerFactory.getLogger(MailConfiguration.class);
private RelaxedPropertyResolver propertyResolver;
@Override
public void setEnvironment(Environment environment) {
this.propertyResolver = new RelaxedPropertyResolver(environment, ENV_SPRING_MAIL);
}
@Bean
public JavaMailSenderImpl javaMailSender() {
log.debug("Configuring mail server");
String host = propertyResolver.getProperty(PROP_HOST, DEFAULT_PROP_HOST);
int port = propertyResolver.getProperty(PROP_PORT, Integer.class, 0);
String user = propertyResolver.getProperty(PROP_USER);
String password = propertyResolver.getProperty(PROP_PASSWORD);
String protocol = propertyResolver.getProperty(PROP_PROTO);
Boolean tls = propertyResolver.getProperty(PROP_TLS, Boolean.class, false);
Boolean auth = propertyResolver.getProperty(PROP_AUTH, Boolean.class, false);
JavaMailSenderImpl sender = new JavaMailSenderImpl();
if (host != null && !host.isEmpty()) {
sender.setHost(host);
} else {
log.warn("Warning! Your SMTP server is not configured. We will try to use one on localhost.");
log.debug("Did you configure your SMTP settings in your application.yml?");
sender.setHost(DEFAULT_HOST);
}
sender.setPort(port);
sender.setUsername(user);
sender.setPassword(password);
Properties sendProperties = new Properties();
sendProperties.setProperty(PROP_SMTP_AUTH, auth.toString());
sendProperties.setProperty(PROP_STARTTLS, tls.toString());
sendProperties.setProperty(PROP_TRANSPORT_PROTO, protocol);
sender.setJavaMailProperties(sendProperties);
return sender;
}
}
MailService.java
package com.myapp.service;
import com.myapp.domain.User;
import org.apache.commons.lang.CharEncoding;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.MessageSource;
import org.springframework.core.env.Environment;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
import org.thymeleaf.context.Context;
import org.thymeleaf.spring4.SpringTemplateEngine;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import javax.mail.Message;
import javax.mail.SendFailedException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Locale;
/**
* Service for sending e-mails.
* <p/>
* <p>
* We use the @Async annotation to send e-mails asynchronously.
* </p>
*/
@Service
public class MailService {
private final Logger log = LoggerFactory.getLogger(MailService.class);
@Inject
private Environment env;
@Inject
private JavaMailSenderImpl javaMailSender;
@Inject
private MessageSource messageSource;
@Inject
private SpringTemplateEngine templateEngine;
/**
* System default email address that sends the e-mails.
*/
private String from;
@PostConstruct
public void init() {
this.from = env.getProperty("mail.from");
}
@Async
public void sendEmail(String to, String subject, String content, boolean isMultipart, boolean isHtml) {
log.debug("Send e-mail[multipart '{}' and html '{}'] to '{}' with subject '{}' and content={}",
isMultipart, isHtml, to, subject, content);
// Prepare message using a Spring helper
MimeMessage mimeMessage = javaMailSender.createMimeMessage();
try {
MimeMessageHelper message = new MimeMessageHelper(mimeMessage, isMultipart, CharEncoding.UTF_8);
message.setTo(to);
message.setFrom(from);
message.setSubject(subject);
message.setText(content, isHtml);
javaMailSender.send(message.getMimeMessage());
log.debug("Sent e-mail to User '{}'", to);
} catch (Exception e) {
log.warn("E-mail could not be sent to user '{}', exception is: {}", to, e.getMessage());
}
}
@Async
public void sendPurchaseEmail(String to, String subject, String content, boolean isMultipart, boolean isHtml) {
log.debug("Send e-mail[multipart '{}' and html '{}'] to '{}' with subject '{}' and content={}",
isMultipart, isHtml, to, subject, content);
// Prepare message using a Spring helper
MimeMessage mimeMessage = javaMailSender.createMimeMessage();
try {
MimeMessageHelper message = new MimeMessageHelper(mimeMessage, isMultipart, CharEncoding.UTF_8);
message.setTo(to);
message.setFrom(from);
message.setSubject(subject);
message.setText(content, isHtml);
javaMailSender.send(message.getMimeMessage());
log.debug("Sent purchase e-mail to '{}'", to);
} catch (Exception e) {
log.warn("E-mail could not be sent to '{}', exception is: {}", to, e.getMessage());
}
}
@Async
public void sendActivationEmail(User user, String baseUrl) {
log.debug("Sending activation e-mail to '{}'", user.getEmail());
Locale locale = Locale.forLanguageTag(user.getLangKey());
Context context = new Context(locale);
context.setVariable("user", user);
context.setVariable("baseUrl", baseUrl);
String content = templateEngine.process("activationEmail", context);
String subject = messageSource.getMessage("email.activation.title", null, locale);
sendEmail(user.getEmail(), subject, content, false, true);
}
@Async
public void sendPurchaseNotificationEmail(String orderId, String email, String baseUrl) {
log.debug("Sending activation e-mail to '{}'", email);
Locale locale = Locale.forLanguageTag(Locale.ENGLISH.getLanguage());
String title = messageSource.getMessage("email.purchase.title", null, locale);
Context context = new Context(locale);
context.setVariable("orderId", orderId);
context.setVariable("baseUrl", baseUrl);
context.setVariable("subject", title);
context.setVariable("greeting", messageSource.getMessage("email.purchase.greeting", null, locale));
context.setVariable("text1", messageSource.getMessage("email.purchase.text1", null, locale));
context.setVariable("text2", messageSource.getMessage("email.purchase.text2", null, locale));
context.setVariable("signature", messageSource.getMessage("email.purchase.signature", null, locale));
String content = templateEngine.process("purchaseEmail", context);
sendPurchaseEmail(email, title, content, false, true);
}
}
答案 0 :(得分：1)
另一个更新：
今天我偶然发现了这篇文章，这篇文章启发了一个单行添加mimeMessage.saveChanges()，似乎可以解决我以前的问题。
感谢@dkar的回答，最终也为我纠正了这个问题。在这里阅读他的答案：Original Answer
@Async
public void sendEmail(String to, String sendFrom, String subject, String content) {
log.debug("Send e-mail to '{}' with subject '{}' and content={}",
to, subject, content);
// Prepare message using a Spring helper
MimeMessage mimeMessage = javaMailSender.createMimeMessage();
try {
MimeMessageHelper message = new MimeMessageHelper(mimeMessage, true, CharEncoding.UTF_8);
message.setTo(to);
message.setFrom(sendFrom);
message.setSubject(subject);
message.setText(content, true);
mimeMessage.saveChanges();
javaMailSender.send(message.getMimeMessage());
log.debug("Sent e-mail to User '{}'", to);
} catch (Exception e) {
log.warn("E-mail could not be sent to user '{}', exception is: {}", to, e.getMessage());
}
}