前言
Springboot集常用的功能于一体，当然邮件功能作为最常见的功能，自然不能缺席Springboot的大家庭，spring-boot-starter-mail这个jar里面封装了SpringBoot的邮件功能。下面来看一下常见的邮件用途
预备知识：
Springboot 2.1.1
Maven 3.5.3
Lomlok 1.16.18(可以参考：lombok 简化 Java 代码)
thymeleaf:3.0.11
junit 4.12
代码地址：
博文只是列举核心操作步骤，需要自己实际操作。
https://github.com/Tojian/spring-treasure-box/tree/master/tao-springboot-mail
一、pom文件添加mail相关依赖
邮件功能主要用到这个spring-boot-starter-mail这个starter，这个Starter里面集成了很多java的mail和spring框架里面的一些mail操作，比如核心的JavaMailSender类就是在Spring-context里面封装的。
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.18</version>
<scope>provided</scope>
</dependency>
</dependencies>
二、在application.properties中添加邮箱配置
# 邮箱服务器名字
spring.mail.host=smtp.163.com
# 发送方邮箱地址
spring.mail.username=tj_since@163.com
# 授权码
spring.mail.password=XXX
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
# 收件邮箱地址
mail.sender.to=1099593012@qq.com
说明一下spring.mail.password 这个并不是你的邮箱密码，而是你的邮箱的授权码，下面以163邮箱截图说明
三.简单邮件实现
1.代码实现
@Autowired
private TemplateEngine templateEngine;
@Value("${spring.mail.username}")
private String from;
@Value("${mail.sender.to}")
private String to;
@Override
public void sendTxtMail(String subject, String content) {
SimpleMailMessage message = new SimpleMailMessage();
message.setFrom(from);
message.setTo(to);
message.setSubject(subject);
message.setText(content);
try {
mailSender.send(message);
log.info("send simple mail done");
} catch (Exception e) {
log.error("send simple mail happen exception", e);
}
}
2.代码测试
@Test
public void testSimpleMail() throws Exception {
mailSend.sendTxtMail("test simple mail", " hello this is text mail");
}
四.发送Html格式
1.代码实现
@Override
public void sendHtmlMail(String subject, String content) {
MimeMessage message = mailSender.createMimeMessage();
try {
//true表示需要创建一个multipart message
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
// 设置为true
helper.setText(content, true);
mailSender.send(message);
log.info("send html mail done");
} catch (MessagingException e) {
log.error("send html mail happen exception", e);
}
}
2.代码测试
@Test
public void testHtmlMail() throws Exception {
String content = "<html>
" +
"<body>
" +
" <h3>hello world ! 这是一封Html邮件!</h3>
" +
"</body>
" +
"</html>";
mailSend.sendHtmlMail("test simple mail", content);
}
五.发送附件
1.代码实现
@Override
public void sendAttachmentsMail(String subject, String content,String path) {
try {
MimeMessage mimeMessage = mailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
helper.setTo(to);
helper.setFrom(from);
helper.setSubject(subject);
helper.setText(content);
FileSystemResource file = new FileSystemResource(new File(path));
helper.addAttachment("附件-1.jpg", file);
helper.addAttachment("附件-2.jpg", file);
mailSender.send(mimeMessage);
log.info("send AttachmentsMail done ");
} catch (Exception e) {
log.error("send AttachmentsMail happen exception");
}
}
2.代码测试
@Test
public void testsendAttachmentsMail() {
String path = "/Users/taojian/Files/projectSofeware/github/spring-treasure-box/tao-springboot-mail/src/test/java/com/taojian/mail/tao.jpg";
mailSend.sendAttachmentsMail("附件发送", "有附件", path);
}
六.发送静态资源内嵌
1.代码实现
@Override
public void sendInlineMail(String subject, String content,String path) {
MimeMessage mimeMessage = mailSender.createMimeMessage();
try {
MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content, true);
FileSystemResource file = new FileSystemResource(new File(path));
helper.addInline("tao", file);
mailSender.send(mimeMessage);
log.info("send InlineMail done ");
} catch (Exception e) {
log.error("send InlineMail happen exception");
}
}
2.代码测试
@Test
public void testsendInlineMail() {
String content = "<html><body><img src="cid:tao" ></body></html>";
String path = "/Users/taojian/Files/projectSofeware/github/spring-treasure-box/tao-springboot-mail/src/test/java/com/taojian/mail/tao.jpg";
mailSend.sendInlineMail("sendInlineMail", content, path);
}
七.发送邮件模版
1.代码实现
1.创建邮件模版email.html
这里采用了org.springframework.boot:spring-boot-starter-thymeleaf:2.1.1.RELEASE，thymeleaf和springboot有很好的集成，官方也推荐这种方式
<!DOCTYPE html>
<html lang="zh" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8"/>
<title>Title</title>
</head>
<body>
您好 <td th:text="${username}"></td>,这是验证邮件,请点击下面的链接完成验证,<br/>
<a href="#" th:href="@{ http://www.taobigbig.com/ }">激活账号</a>
</body>
</html>
2.java代码
@Override
public void sendTemplateMail(String title, String content) {
try {
//创建邮件正文
Context context = new Context();
context.setVariable("username", "taojian");
// email是邮件模版
String emailContent = templateEngine.process("email", context);
MimeMessage mimeMessage = mailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(title);
helper.setText(emailContent,true);
mailSender.send(mimeMessage);
log.info("send TemplateMail done ");
} catch (Exception e) {
log.error("send TemplateMail happen exception");
}
}
2.代码测试
@Test
public void testsendTemplateMail() {
mailSend.sendTemplateMail("send mail template", "send mail template test");
}
五、参考文献
http://www.ityouknow.com/springboot/2017/05/06/springboot-mail.html
http://tengj.top/categories/Spring-Boot干货系列/
https://blog.csdn.net/clementad/article/details/51833416
https://github.com/pkhanal/spring-boot-starter-mail-sample
http://repo.spring.io/release/org/springframework/boot/spring-boot-starter-mail/
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