Foreword
In many enterprise-level projects, you need to use the function to send a message, such as:
- E-mail authentication is required to send a registered user
- Send e-mail notification when the user birthday congratulations
Send e-mail to the user, etc.
Create Project import dependence
<!-- 邮箱发送依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<!-- 小火龙代码简化 -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.8</version>
</dependency>The project relies on SpringBoot, is based SpringBoot mail sent again had a package.
Creating Application.properties
# JavaMailSender 邮件发送的配置
spring.mail.host=smtp.qq.com
[email protected]
#授权码
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
spring.mail.default-encoding=UTF-8Send mail package tools
Create a mailbox information entity classes, as follows:
/**
* 邮件信息实体
*
* @author:伍梓涛
* @version:1.0.0
* @Modified By:SimpleWu
* @CopyRright (c)2019-:YUM架构平台
*/
@Data
public class MailEntity {
private String to; //收件人
private String subject;//标题
private String text;//正文
private boolean isHtml = false;//是否html邮件
private List<String> files;//附件地址
private Date sentDate;//发送时间
}Create a mailbox information entity class tools to create e-mail messages quickly
/**
* 邮箱发送信息统一处理封装
*
* @author:伍梓涛
* @version:1.0.0
* @Modified By:SimpleWu
* @CopyRright (c)2019-:YUM架构平台
*/
@Slf4j
public class MailEntityHelper {
public static MimeMessageHelper craeteMessageHelper(MimeMessage mimeMessage, MailEntity mailBean) throws MessagingException {
MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);
// mimeMessageHelper.setFrom(emailSender);//发件人
mimeMessageHelper.setTo(mailBean.getTo());//收件人
mimeMessageHelper.setSubject(mailBean.getSubject());//标题
mimeMessageHelper.setText(mailBean.getText(), mailBean.isHtml());//是否html
mimeMessageHelper.setSentDate(mailBean.getSentDate() == null ? new Date() : mailBean.getSentDate());// 客户端邮箱发送时间
if (mailBean.getFiles() != null && mailBean.getFiles().size() > 0) {
//附件添加
mailBean.getFiles().forEach(filename -> {
String ext = filename.substring(filename.lastIndexOf(".") + 1, filename.length());
File diskfile = new File(filename);
try {
mimeMessageHelper.addAttachment(diskfile.getName(), diskfile);
} catch (MessagingException e) {
e.printStackTrace();
log.error("设置附件失败:{}", mailBean);
}
});
}
return mimeMessageHelper;
}
}Create a mailbox send tools, a mailbox to send:
/**
* 邮箱发送工具类
*
* @author:伍梓涛
* @version:1.0.0
* @Modified By:SimpleWu
* @CopyRright (c)2019-:YUM架构平台
*/
@Component
@Slf4j
public class MailHelper {
@Autowired
private JavaMailSender javaMailSender;
@Value("${spring.mail.username}")
private String emailSender;
private static MailHelper mailHelper;
public MailHelper() {
mailHelper = this;
}
/**
* 构建静态获取实例
*
* @return
*/
public static MailHelper buidler() {
if (mailHelper == null) {
return null;
}
return mailHelper;
}
/*public void sendSimpleMail(EmailContextPojo mailBean) {
try {
SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
//邮件发送人
simpleMailMessage.setFrom(emailSender);
//邮件接收人
simpleMailMessage.setTo(mailBean.getTo());
//邮件主题
simpleMailMessage.setSubject(mailBean.getSubject());
//邮件内容
simpleMailMessage.setText(mailBean.getText());
javaMailSender.send(simpleMailMessage);
} catch (Exception e) {
e.printStackTrace();
log.error("邮件发送失败", e.getMessage());
}
}*/
public void sendMail(MailEntity mailBean) {
MimeMessage mimeMailMessage = null;
try {
mimeMailMessage = javaMailSender.createMimeMessage();
MimeMessageHelper mimeMessageHelper = MailEntityHelper.craeteMessageHelper(mimeMailMessage, mailBean);
mimeMessageHelper.setFrom(emailSender);//发件人
javaMailSender.send(mimeMailMessage);
} catch (Exception e) {
log.error("邮件发送失败", e.getMessage());
}
}
public void sendMail(MailEntity... mailBeans) {
//批量发送集合
List<MimeMessage> mimeMessages = new ArrayList<>(mailBeans.length);
try {
if (mailBeans != null || mailBeans.length > 0) {
for (int i = 0; i < mailBeans.length; i++) {
MimeMessage mimeMailMessage = javaMailSender.createMimeMessage();
MimeMessageHelper messageHelper = MailEntityHelper.craeteMessageHelper(mimeMailMessage, mailBeans[i]);
messageHelper.setFrom(emailSender);//发件人
mimeMessages.add(mimeMailMessage);
}
}
MimeMessage[] resultMessage = new MimeMessage[mimeMessages.size()];
mimeMessages.toArray(resultMessage);
javaMailSender.send((resultMessage));
} catch (Exception e) {
log.error("邮件发送失败", e.getMessage());
}
}
}After the tools before sending a unified message processing by mail, e-mail information on the entities package, where you only need to pass the object parameter. Since used here is SpringBoot already packaged, because we want to use it as tools, need to inject each time is not convenient.
Where the increase in the class of static objects in the Spring container instantiated directly assigned to him initialization javaMailSender and by buidler () can still get to an instance of an object, but if this is to re-create the object would cause problems, so Spring container preferably used in the tools to acquire javaMailSender can.
send email
1. Send regular mail
MailEntity emailContextPojo = new MailEntity();
emailContextPojo.setSubject("Ycloud 邮箱标题");
emailContextPojo.setText("Ycloud 邮箱正文");
emailContextPojo.setTo(" 接收邮箱号 ");
MailHelper.buidler().sendMail(emailContextPojo);2. Send e-mail Html
emailContextPojo.setHtml(true);Information only needs to be set to true entity class can be.
3. Send attachments
emailContextPojo.setFiles(Arrays.asList("D:\\Yum系统架构平台\\004.高系统部署\\004.PXC\\部署手册.docx"));Only you need to add an attachment path.
Note: Do not send direct mail in the project
https:: JOB achieve timing reference may send a message //www.cnblogs.com/SimpleWu/p/11341453.html
article Code Case: https: //github.com/450255266/ open-doubi / tree / master / SpringBoot / email