1、QQ邮箱开通POP3/SMTP服务或IMAP/SMTP服务
登录QQ邮箱，依次点击顶部的设置按钮和账户按钮，在下方找到POP3/SMTP服务，点击开启，按照引导步骤操作成功后会获取一个授权码
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2、新建SpringBoot项目
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3、pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.wzf</groupId>
<artifactId>email</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>email</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
<version>2.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
4、application.properties
spring.mail.host = smtp.qq.com
spring.mail.port = 465
#QQ邮箱地址
spring.mail.username = 123@qq.com
#获取的QQ邮箱授权码
spring.mail.password = 123
spring.mail.default-encoding = UTF-8
spring.mail.properties.mail.smtp.socketFactory.class = javax.net.ssl.SSLSocketFactory
spring.mail.properties.mail.debug = true
5、MailService.java
package com.wzf.email;
import org.springframework.beans.factory.annotation.Autowired;
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 javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;
@Component
public class MailService {
@Autowired
JavaMailSender javaMailSender;
/**
* 发送简单邮件
* @param from 邮件发送者
* @param to 收件人
* @param cc 抄送人
* @param subject 邮件主题
* @param content 邮件内容
*/
public void sendSimpleMail(String from, String to, String cc, String subject, String content){
SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
simpleMailMessage.setFrom(from);
simpleMailMessage.setTo(to);
simpleMailMessage.setCc(cc);
simpleMailMessage.setSubject(subject);
simpleMailMessage.setText(content);
javaMailSender.send(simpleMailMessage);
}
/**
* 发送带附件的邮件
* @param from 邮件发送者
* @param to 收件人
* @param subject 邮件主题
* @param content 邮件内容
* @param file 文件附件
*/
public void sendAttachFileMail(String from, String to, String subject, String content, File file){
try{
MimeMessage message = javaMailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content);
helper.addAttachment(file.getName(), file);
javaMailSender.send(message);
}catch (MessagingException e){
e.printStackTrace();
}
}
/**
*发送带图片的邮件
* @param from 邮件发送者
* @param to 收件人
* @param subject 邮件主题
* @param content 邮件内容
* @param srcPath 图片资源路径
* @param resIds 资源id
*/
public void sendMailWithImg(String from, String to, String subject, String content, String[] srcPath, String[] resIds){
if(srcPath.length != resIds.length){
System.out.println("发送失败");
return;
}
try{
MimeMessage message = javaMailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content, true);
for(int i=0; i<srcPath.length; i++){
FileSystemResource res = new FileSystemResource(new File(srcPath[i]));
helper.addInline(resIds[i], res);
}
javaMailSender.send(message);
}catch (MessagingException e){
System.out.println("发送失败");
e.printStackTrace();
}
}
}
6、测试
package com.wzf.email;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import java.io.File;
@SpringBootTest
class MailServiceTest {
@Autowired
MailService mailService;
@Test
void sendSimpleMail() {
String from = "123@qq.com";
String to = "111@qq.com";
String cc = "222@qq.com";
String subject = "简单邮件";
String content = "测试简单邮件，可以忽略。";
mailService.sendSimpleMail(from, to, cc, subject, content);
}
@Test
void sendAttachFileMail(){
String from = "123@qq.com";
String to = "111@qq.com";
String subject = "附件邮件";
String content = "测试带附件的邮件，可以忽略。";
File file = new File("E:\\数据.txt");
mailService.sendAttachFileMail(from, to, subject, content, file);
}
@Test
void sendMailWithImg(){
String from = "123@qq.com";
String to = "111@qq.com";
String subject = "带图片的邮件";
String content = "<h1>测试带图片的邮件，可以忽略。</h1>" +
"图片1：<div><img src='cid:p01'/></div>" +
"图片2：<div><img src='cid:p02'/></div>";
String[] srcPath = new String[]{"E:\\temp\\locate.png","E:\\temp\\name.png"};
String[] resIds = new String[]{"p01","p02"};
mailService.sendMailWithImg(from, to, subject, content, srcPath, resIds);
}
}
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