java实现邮件发送 javaspring后端

java实现邮件自动网易邮箱发送
1、配置依赖包

javax.mail mail 1.5.0-b01

2、需要到网易邮箱开始服务
注意授权码保存好！！！

文章图片

3、代码
public class ClientEmail {

public static void main(String[] args) throws Exception { Properties props = new Properties(); //设置邮件地址 props.put("mail.host", "smtp.163.com"); props.put("mail.transport.protocol", "smtp"); //开启认证 props.put("mail.smtp.auth", "true"); Session session = Session.getDefaultInstance(props, null); Transport transport = session.getTransport(); //用户名 String user = "xxx@163.com"; //授权码 String password = "****************"; transport.connect(user, password); //创建邮件消息 MimeMessage msg = new MimeMessage(session); msg.setSentDate(new Date()); //邮件发送人 InternetAddress fromAddress = new InternetAddress(user, "邮件服务"); msg.setFrom(fromAddress); //邮件接收人 String to = "1819436405@qq.com"; InternetAddress[] toAddress = new InternetAddress[]{new InternetAddress(to)}; msg.setRecipients(Message.RecipientType.TO, toAddress); //邮件主题 msg.setSubject("测试邮件发送", "UTF-8"); //内容和附件 Multipart multipart = new MimeMultipart(); //内容 BodyPart contentBodyPart = new MimeBodyPart(); contentBodyPart.setContent("test00001", "text/html; charset=UTF-8"); multipart.addBodyPart(contentBodyPart); //附件 BodyPart fileBody = new MimeBodyPart(); DataSource source = new FileDataSource("C:/图片"); fileBody.setDataHandler(new DataHandler(source)); fileBody.setFileName("0b8da2cf424d1.jpg"); multipart.addBodyPart(fileBody); //邮件内容 msg.setContent(multipart); msg.saveChanges(); //发送 transport.sendMessage(msg, msg.getAllRecipients()); }

【java实现邮件发送】}
注意要配置好参数，不然会发送有问题。