此篇非原创，代码忘了从哪篇帖子下学习的了，时间太久了，写这篇主要是为了存一下
package com.cn.test.mailConfig;
import java.security.GeneralSecurityException;
import java.util.Properties;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import com.sun.mail.util.MailSSLSocketFactory;
public class Mail {
public static void sendSimpleMail() throws GeneralSecurityException{
JavaMailSenderImpl senderImpl = new JavaMailSenderImpl();
senderImpl.setHost("smtp.163.com");
senderImpl.setUsername("**@163.com");
senderImpl.setPassword("**");
Properties prop = new Properties();
MailSSLSocketFactory sf = new MailSSLSocketFactory();
sf.setTrustAllHosts(true);
prop.put("mail.smtp.ssl.enable", "true");
prop.put("mail.smtp.ssl.socketFactory", sf);
prop.put("mail.smtp.auth", "true");
prop.put("mail.smtp.timeout", "20000");
senderImpl.setJavaMailProperties(prop);
SimpleMailMessage mail = new SimpleMailMessage();
mail.setFrom("**@163.com");
mail.setTo("**@163.com");
mail.setSubject("测试标题");
mail.setText("测试");
senderImpl.send(mail);
System.out.println("SIMPLEMAIL SENDED");
}
public static void sendMimeMail() throws GeneralSecurityException, MessagingException{
JavaMailSenderImpl senderImpl = new JavaMailSenderImpl();
senderImpl.setHost("smtp.163.com");
senderImpl.setUsername("**@163.com");
senderImpl.setPassword("**");
Properties prop = new Properties();
MailSSLSocketFactory sf = new MailSSLSocketFactory();
sf.setTrustAllHosts(true);
prop.put("mail.smtp.ssl.enable", "true");
prop.put("mail.smtp.ssl.socketFactory", sf);
prop.put("mail.smtp.auth", "true");
prop.put("mail.smtp.timeout", "20000");
senderImpl.setJavaMailProperties(prop);
MimeMessage mail = senderImpl.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(mail,true);
helper.setFrom("**@163.com");
helper.setTo("**@163.com");
helper.setSubject("测试标题MIME");
helper.setText("测试MIME");
FileSystemResource mailImage = new FileSystemResource("src/main/webapp/files/images/0.jpg");
helper.addAttachment("mail.png", mailImage);
senderImpl.send(mail);
System.out.println("MIMEMAIL SENDED");
}
public static void sendHTMLMail() throws GeneralSecurityException, MessagingException{
JavaMailSenderImpl senderImpl = new JavaMailSenderImpl();
senderImpl.setHost("smtp.163.com");
senderImpl.setUsername("**@163.com");
senderImpl.setPassword("**");
senderImpl.setDefaultEncoding("UTF-8");
Properties prop = new Properties();
MailSSLSocketFactory sf = new MailSSLSocketFactory();
sf.setTrustAllHosts(true);
prop.put("mail.smtp.ssl.enable", "true");
prop.put("mail.smtp.ssl.socketFactory", sf);
prop.put("mail.smtp.auth", "true");
prop.put("mail.smtp.timeout", "20000");
senderImpl.setJavaMailProperties(prop);
MimeMessage mail = senderImpl.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(mail,true);
helper.setFrom("**@163.com");
helper.setTo("**@163.com");
helper.setSubject("测试标题HTML");
StringBuilder html = new StringBuilder();
html.append("<html>")
.append("<body>")
.append("<h2>Goser,你好</h2>")
.append("<p>这是一个测试。</p>")
.append("<img src=‘cid:mailImage‘/>")
.append("<p>THANKS</p>")
.append("</body>")
.append("</html>");
helper.setText(html.toString(),true);
FileSystemResource mailImage = new FileSystemResource("src/main/webapp/files/images/0.jpg");
helper.addInline("mailImage", mailImage);
senderImpl.send(mail);
System.out.println("HTMLMAIL SENDED");
}
public static void main(String[] args) throws GeneralSecurityException, MessagingException{
//sendHTMLMail();
//sendSimpleMail();
sendMimeMail();
}
}
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency>
原文地址：https://www.cnblogs.com/leavesss/p/9955433.html