SpringBoot JavaMailSender发送邮件（QQ和163邮箱）

引入Maven依赖包

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>

163邮箱

application.properties

#####163邮箱########
spring.mail.host=smtp.163.com
spring.mail.username=*****@163.com
#163邮箱密码
spring.mail.password=!@#$%^&*
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true

运行类：

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest(classes=Application.class)
public class My163MailTest {

    @Autowired
    private JavaMailSender javaMailSender;

    @Value("${spring.mail.username}")
    private String username;

    @Test
    public void testSendSimple() {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(username);
        message.setTo("*******@qq.com");
        message.setSubject("标题：测试标题");
        message.setText("测试内容部份");
        javaMailSender.send(message);
    }
}

QQ邮箱和163邮箱的区别是需要设置授权码而不是密码，具体操作参考：
http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=1001256

application.properties

######qq邮箱########
spring.mail.host=smtp.qq.com
spring.mail.username=******@qq.com
#QQ邮箱授权码
spring.mail.password=xuojxtkdojvzbhjj
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true

运行类：

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest(classes=Application.class)
public class MyQQMailTest {

    @Autowired
    private JavaMailSender javaMailSender;

    @Value("${spring.mail.username}")
    private String username;

    @Test
    public void testSendSimple() {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(username);
        message.setTo("******@qq.com");
        message.setSubject("标题：测试标题");
        message.setText("测试内容部份");
        javaMailSender.send(message);
    }
}