Spring Boot 之 Email

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>19.0</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.12</version>
        </dependency>
        <!-- common -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.2.1</version>
        </dependency>
</dependencies>

# Email (MailProperties)
spring.mail.default-encoding=UTF-8
spring.mail.host=smtp.qq.com
spring.mail.password=123456
spring.mail.port=25
spring.mail.protocol=smtp
spring.mail.test-connection=false
spring.mail.username=server1@qq.com
#spring.mail.properties.mail.smtp.auth=true
#spring.mail.properties.mail.smtp.starttls.enable=true
#spring.mail.properties.mail.transport.protocol=smtps
#spring.mail.properties.mail.smtps.quitwait=false

@Component("emailSender")
public class EmailSender {
    private Logger logger = LogManager.getLogger(getClass());
    private String defaultFrom = "server1@qq.com";
    @Autowired
    private JavaMailSender javaMailSender;

    /**
     * 发送邮件
     *
     * @param to      收件人地址
     * @param subject 邮件主题
     * @param content 邮件内容
     * @author lance
     */
    public boolean sender(String to, String subject, String content) {
        return sender(to, subject, content, true);
    }

    /**
     * 发送邮件
     *
     * @param to      收件人地址
     * @param subject 邮件主题
     * @param content 邮件内容
     * @param html    是否格式内容为HTML
     * @author lance
     */
    public boolean sender(String to, String subject, String content, boolean html) {
        if (StringUtils.isBlank(to)) {
            logger.error("邮件发送失败：收件人地址不能为空.");
            return false;
        }
        return sender(new String[]{to}, subject, content, html);
    }

    /**
     * sender message
     *
     * @param to
     * @param subject
     * @param content
     * @param html
     * @return
     */
    public boolean sender(String[] to, String subject, String content, boolean html) {
        if (to == null || to.length == 0) {
            logger.error("批量邮件发送失败：收件人地址不能为空.");
            return false;
        }

        SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
        simpleMailMessage.setFrom(defaultFrom);
        simpleMailMessage.setTo(to);
        simpleMailMessage.setSubject(subject);
        simpleMailMessage.setText(content);

        try {
            javaMailSender.send(simpleMailMessage);
            return true;
        } catch (MailException e) {
            logger.error("发送邮件错误：{}, TO:{}, Subject:{},Content:{}.", e, to, subject, content);
            return false;
        }
    }
}