完成Springboot配置发件邮箱,自动给其他邮箱发送邮件功能
一、创建springboot基础项目,引入依赖
<!-- Spring Boot 邮件依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<!-- Spring Boot 模板依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
二、配置文件添加必要的配置:
#qq邮箱为例
spring.mail.host=smtp.qq.com
spring.mail.port=465
spring.mail.username=89666XXX@qq.com
spring.mail.password=XXXXXX #不是邮件密码而是授权码(邮箱设置里获取)
spring.mail.protocol=smtp
spring.mail.test-connection=true
spring.mail.default-encoding=UTF-8
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.properties.mail.smtp.ssl.enable=true
spring.mail.properties.mail.display.sendmail=spring-boot-demo
三、工程结构
四、MailService接口
package com.example.mail.demo;
import javax.mail.MessagingException;
public interface MailService {
/**
* 发送文本邮件
*
* @param to 收件人地址
* @param subject 邮件主题
* @param content 邮件内容
* @param cc 抄送地址
*/
void sendSimpleMail(String to, String subject, String content, String... cc);
/**
* 发送HTML邮件
*
* @param to 收件人地址
* @param subject 邮件主题
* @param content 邮件内容
* @param cc 抄送地址
* @throws MessagingException 邮件发送异常
*/
void sendHtmlMail(String to, String subject, String content, String... cc) throws MessagingException;
/**
* 发送带附件的邮件
*
* @param to 收件人地址
* @param subject 邮件主题
* @param content 邮件内容
* @param filePath 附件地址
* @param cc 抄送地址
* @throws MessagingException 邮件发送异常
*/
void sendAttachmentsMail(String to, String subject, String content, String filePath, String... cc) throws MessagingException;
}
五、MailServiceImpl实现
package com.example.mail.demo;
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.Service;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;
@Service
public class MailServiceImpl implements MailService {
@Autowired
private JavaMailSender mailSender;
@Value("${spring.mail.username}")
private String from;
/**
* 发送文本邮件
*
* @param to 收件人地址
* @param subject 邮件主题
* @param content 邮件内容
* @param cc 抄送地址
*/
@Override
public void sendSimpleMail(String to, String subject, String content, String... cc) {
SimpleMailMessage message = new SimpleMailMessage();
message.setFrom(from);
message.setTo(to);
message.setSubject(subject);
message.setText(content);
if (cc != null) {
message.setCc(cc);
}
mailSender.send(message);
}
/**
* 发送HTML邮件
*
* @param to 收件人地址
* @param subject 邮件主题
* @param content 邮件内容
* @param cc 抄送地址
* @throws MessagingException 邮件发送异常
*/
@Override
public void sendHtmlMail(String to, String subject, String content, String... cc) throws MessagingException {
MimeMessage message = mailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content, true);
if (cc != null) {
helper.setCc(cc);
}
mailSender.send(message);
}
/**
* 发送带附件的邮件
*
* @param to 收件人地址
* @param subject 邮件主题
* @param content 邮件内容
* @param filePath 附件地址
* @param cc 抄送地址
* @throws MessagingException 邮件发送异常
*/
@Override
public void sendAttachmentsMail(String to, String subject, String content, String filePath, String... cc) throws MessagingException {
MimeMessage message = mailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content, true);
if (cc != null) {
helper.setCc(cc);
}
FileSystemResource file = new FileSystemResource(new File(filePath));
String fileName = new File(filePath).getName();
System.out.println("fileName:"+fileName);
helper.addAttachment(fileName, file);
mailSender.send(message);
}
}
六、EmailController控制类
package com.example.mail.demo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;
import javax.mail.MessagingException;
import java.io.File;
import java.net.URL;
@Controller
public class EmailController {
@Autowired
private MailService mailService;
/**
* 测试发送简单邮件
*/
@GetMapping("/testSendSimpleMail")
@ResponseBody
public String sendSimpleMail() {
mailService.sendSimpleMail("2431886055@qq.com", "这是一封简单邮件", "这是一封普通的SpringBoot测试邮件");
return "ok";
}
@Autowired
private TemplateEngine templateEngine;
/**
* 发送html邮件
* @return
* @throws MessagingException
*/
@GetMapping("/sendHtmlMail")
@ResponseBody
public String sendHtmlMail() throws MessagingException {
Context context = new Context();
context.setVariable("project", "Spring Boot email");
context.setVariable("author", "万笑佛");
context.setVariable("url", "https://www.cnblogs.com/yclh/");
String emailTemplate = templateEngine.process("welcome", context);
mailService.sendHtmlMail("2431886055@qq.com", "这是一封模板HTML邮件", emailTemplate);
return "ok";
}
/**
* 发送带附件的邮件
* @throws MessagingException
*/
@GetMapping("/sendAttachmentsMail")
@ResponseBody
public String sendAttachmentsMail() throws MessagingException {
URL url = null;
try {
// 创建一个文件对象
File file = new File("D:\\IDEANew\\45Mail\\src\\main\\resources\\static\\index.html");
// 将文件对象转换为URI
url = file.toURI().toURL();
// 输出URL
System.out.println("文件的URL: " + url);
} catch (Exception e) {
e.printStackTrace();
}
System.out.println(url.getPath());
mailService.sendAttachmentsMail("2431886055@qq.com", "这是一封带附件的邮件", "邮件中有附件,请注意查收!", url.getPath());
return "ok";
}
}
七、postman测试
(1)第一个简单邮件
效果
(2)第二个带模板的邮件
效果
(3)第三个带附件的邮件
效果