1.在pom文件中添加依赖：如下：
<!--邮件 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<!--模板thymeleaf-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
2 某个邮箱开启POP3/SMTP服务
以qq邮箱为列：
. 点击“”设置“”按钮，点击“”账户“面板，选择开启POP3/SMTP服务，如图：
开启服务时，会生成一个授权码。记住这个授权码。
yml配置中添加如下配置：注意此处password 不是你邮箱的密码，而是刚刚记下的客户端授权码。
spring:
mail:
host: smtp.qq.com
username: ************@qq.com
password: ufvbwptjicaobfab
default-encoding: UTF-8
port: 25
protocol: smtp
#发件人地址
mail:
fromMail:
addr: *************@qq.com
3.在service层新加MailService类
代码如下：
package com.bh.service;
import java.io.File;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
/**
* @Description:邮件发送类
* @author hxc
*
*/
@Service
@Component
public class MailService{
@Autowired
private JavaMailSender mailSender;
@Value("${mail.fromMail.addr}")
private String from;
/**
* @Description:发送简单邮件(收件人，主题，内容都暂时写死)
* @return
* @author:hxc
*/
public void sendSimpleMail(String to, String subject, String content) {
SimpleMailMessage message = new SimpleMailMessage();
message.setFrom(from);
message.setTo(to);
message.setSubject(subject);
message.setText(content);
try {
mailSender.send(message);
System.out.println("简单邮件发送成功！");
} catch (Exception e) {
System.out.println("发送简单邮件时发生异常！"+e);
}
}
/**
* @Description:发送Html邮件(收件人，主题，内容都暂时写死)
* @return
* @author:hxc
*/
public void sendHtmlMail(String to, String subject, String content) {
MimeMessage message = mailSender.createMimeMessage();
try {
MimeMessageHelper helper = new MimeMessageHelper(message, true); //true表示需要创建一个multipart message
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content, true);
mailSender.send(message);
System.out.println("html邮件发送成功");
} catch (MessagingException e) {
System.out.println("发送html邮件时发生异常！"+e);
}
}
public void sendTemplateMail(){
}
/**
* 发送带附件的邮件
* @param to
* @param subject
* @param content
* @param filePath
*/
public void sendAttachmentsMail(String to, String subject, String content, String filePath){
MimeMessage message = mailSender.createMimeMessage();
try {
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content, true); //可以解析html标签
// helper.setText(content); // 不能解析html标签
FileSystemResource file = new FileSystemResource(new File(filePath));
String fileName = filePath.substring(filePath.lastIndexOf(File.separator)+1);
helper.addAttachment(fileName, file);
System.out.println(fileName);
//helper.addAttachment("test"+fileName, file);
mailSender.send(message);
System.out.println("带附件的邮件已经发送。");
} catch (MessagingException e) {
System.out.println("发送带附件的邮件时发生异常！"+e);
}
}
}
4.在controller层新加MailController类
package com.bh.controller;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;
import com.bh.service.MailService;
/**
* @Description:发送邮件的Controller
* @author hxc
*/
@RestController
@RequestMapping("/mail")
public class MailController {
@Autowired
private MailService mailService;
@Autowired
private TemplateEngine templateEngine;
/**
* @Description:发送简单邮件(收件人，主题，内容都暂时写死)
* 访问地址：http://localhost:8080/mail/sendSimpleMail
* @return
* @author:hxc
*/
@RequestMapping("/sendSimpleMail")
public String sendSimpleMail() {
String to = "[email protected]";
String subject = "test simple mail";
String content = "hello, this is simple mail";
mailService.sendSimpleMail(to, subject, content);
return "success";
}
/**
* @Description:发送Html格式的邮件(收件人，主题，内容都暂时写死)
* 访问地址：http://localhost:8080/mail/sendHtmlMail
* @return
* @author hxc
*/
@RequestMapping("/sendHtmlMail")
public String sendHtmlMail() {
String to = "[email protected]";
String subject = "test html mail";
String content = "hello, this is html mail";
mailService.sendHtmlMail(to, subject, content);
return "success";
}
/**
* @Description:发送带有附件的邮件
* 访问地址：http://localhost:8080/mail/sendAttachmentsMail
* @author:hxc
*/
@Test
@RequestMapping("/sendAttachmentsMail")
public String sendAttachmentsMail() {
String filePath="D:\\课外书籍\\jQuery权威指南.pdf";
// mailService.sendAttachmentsMail("[email protected]", "主题：带附件的邮件", "有附件，请查收！", filePath);
return "success";
}
/**
* @Description:发送模板邮件
* 访问地址：http://localhost:8080/mail/sendTemplateMail
* @author:hxc
*/
@Test
@RequestMapping("/sendTemplateMail")
public String sendTemplateMail() {
//创建邮件正文
Context context = new Context();
context.setVariable("user", "zoey");
context.setVariable("web", "夏梦雪");
context.setVariable("company", "测试公司");
context.setVariable("product","梦想产品");
String emailContent = templateEngine.process("emailTemplate", context);
mailService.sendHtmlMail("[email protected]","主题：这是模板邮件",emailContent);
return "sucess";
}
}
5.在src/main/test/包内添加如下代码：
新建Test1测试类：
代码如下
package test;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;
import com.bh.TestApplication;
import com.bh.service.MailService;
@SpringBootTest(classes = TestApplication.class)
@RunWith(SpringJUnit4ClassRunner.class)
public class Test1{
@Autowired
private MailService mailService;
@Autowired
private TemplateEngine templateEngine;
@Test
public void Test2() {
// mailService.sendSimpleMail("[email protected]","test simple mail","hello, this is simple mail");
Context context = new Context();
context.setVariable("user", "zoey");
context.setVariable("web", "夏梦雪");
context.setVariable("company", "测试公司");
context.setVariable("product","梦想产品");
String emailContent = templateEngine.process("emailTemplate", context);
mailService.sendAttachmentsMail("[email protected]","成绩单",emailContent,"C:\\Users\\admin\\Desktop\\新建.xls");
//创建邮件正文
// Context context = new Context();
// context.setVariable("user", "zoey");
// context.setVariable("web", "夏梦雪");
// context.setVariable("company", "测试公司");
// context.setVariable("product","梦想产品");
// String emailContent = templateEngine.process("emailTemplate", context);
// mailService.sendHtmlMail("[email protected]","激活邮件",emailContent);
}
}
6.在src/main/resources包下新建templates文件夹，然后创建文件emailTemplate.html
html文件内容如下：
<!DOCTYPE html>
<html lang="zh" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8"/>
<title>Title</title>
</head>
<body>
<p th:text="'尊敬的 ' + ${user} + '用户:'"></p>
<p th:text=" '恭喜您注册成为'+${web}+'网的用户,同时感谢您对'+${company}+'的关注与支持并欢迎您使用'+${product}+'的产品与服务。'"></p>
</body>
</html>
然后用测试类一一测试，即可发现可以发送简单邮件，也可以发送html邮件，也可以发送模板文件。