Java tutorial
/* * Copyright 2016-2017 Shanghai Boyuan IT Services Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.boyuanitsm.fort.service; import com.boyuanitsm.fort.config.JHipsterProperties; import com.boyuanitsm.fort.domain.User; import org.apache.commons.lang.CharEncoding; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.context.MessageSource; 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.inject.Inject; import javax.mail.internet.MimeMessage; import java.util.Locale; /** * Service for sending e-mails. * <p> * We use the @Async annotation to send e-mails asynchronously. * </p> */ @Service public class MailService { private final Logger log = LoggerFactory.getLogger(MailService.class); private static final String USER = "user"; private static final String BASE_URL = "baseUrl"; @Inject private JHipsterProperties jHipsterProperties; @Inject private JavaMailSenderImpl javaMailSender; @Inject private MessageSource messageSource; @Inject private SpringTemplateEngine templateEngine; @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(jHipsterProperties.getMail().getFrom()); message.setSubject(subject); message.setText(content, isHtml); javaMailSender.send(mimeMessage); 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 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(BASE_URL, 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 sendCreationEmail(User user, String baseUrl) { log.debug("Sending creation e-mail to '{}'", user.getEmail()); Locale locale = Locale.forLanguageTag(user.getLangKey()); Context context = new Context(locale); context.setVariable(USER, user); context.setVariable(BASE_URL, baseUrl); String content = templateEngine.process("creationEmail", context); String subject = messageSource.getMessage("email.activation.title", null, locale); sendEmail(user.getEmail(), subject, content, false, true); } @Async public void sendPasswordResetMail(User user, String baseUrl) { log.debug("Sending password reset e-mail to '{}'", user.getEmail()); Locale locale = Locale.forLanguageTag(user.getLangKey()); Context context = new Context(locale); context.setVariable(USER, user); context.setVariable(BASE_URL, baseUrl); String content = templateEngine.process("passwordResetEmail", context); String subject = messageSource.getMessage("email.reset.title", null, locale); sendEmail(user.getEmail(), subject, content, false, true); } }