使用javax.mail实现邮件的发送(使用qq邮箱发送)
1、引入javax.mail依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
2、在application.properties文件中配置
mail.config.SMTP_host=smtp.qq.com mail.config.SMTP_port=25 #端口号，一般有ssl的时候端口号是其他的 mail.config.SMTP_auth=true #连接校验 mail.config.STMP_user=xxxx@qq.com #发件人用户 mail.config.STMP_pass=xxxxx #授权码 mail.config.SMTP_from=2428202862@qq.com #发件人 mail.config.SMTP_fromnick=xxx对方邮箱显示的不是qq号而是nickname
3、配置类bean
package lut.mail; public class MailConfig { private String SMTP_host; private int SMTP_port; private boolean SMTP_auth; private String STMP_user; private String STMP_pass; private String SMTP_from; private String SMTP_fromnick; getter/setter...... }
4、配置类注入
package lut.mail; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuration public class MailConfiguration { @Value("${mail.config.SMTP_host}") private String SMTP_host; @Value("${mail.config.SMTP_port}") private int SMTP_port; @Value("${mail.config.SMTP_auth}") private boolean SMTP_auth; @Value("${mail.config.STMP_user}") private String STMP_user; @Value("${mail.config.STMP_pass}") private String STMP_pass; @Value("${mail.config.SMTP_from}") private String SMTP_from; @Value("${mail.config.SMTP_fromnick}") private String SMTP_fromnick; @Bean public MailConfig getmailConfig(){ MailConfig mc = new MailConfig(); mc.setSMTP_host(SMTP_host); mc.setSMTP_port(SMTP_port); mc.setSMTP_auth(SMTP_auth); mc.setSTMP_user(STMP_user); mc.setSTMP_pass(STMP_pass); mc.setSMTP_from(SMTP_from); mc.setSMTP_fromnick(SMTP_fromnick); return mc; } }
5、实现Authenticator抽象类(此类做session实例化是会用到)
package lut.mail; import javax.mail.Authenticator; import javax.mail.PasswordAuthentication; public class MailSMTPAuthenticator extends Authenticator{ private String sName; private String sPassword; public PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(sName, sPassword); } public String getsName() { return sName; } public void setsName(String sName) { this.sName = sName; } public String getsPassword() { return sPassword; } public void setsPassword(String sPassword) { this.sPassword = sPassword; } }
6、mail邮件发送实现
package lut.mail; import java.io.UnsupportedEncodingException; import java.util.Date; import java.util.Properties; import javax.activation.DataHandler; import javax.activation.FileDataSource; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Multipart; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.*; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; @Component @SuppressWarnings("unused") public class MailService { @Autowired private MailConfig mailconfig; public void senMail(){ System.out.println(mailconfig.toString()); MimeMessage mMessage = null; Session mailSession = null; //1、连接邮件服务器的参数配置附件名称过长乱码解决，关键词false System.setProperty("mail.mime.splitlongparameters","false"); Properties props = new Properties(); props.setProperty("mail.smtp.host", mailconfig.getSMTP_host()); props.setProperty("mail.smtp.port", mailconfig.getSMTP_port()+""); props.setProperty("mail.smtp.auth", mailconfig.getSMTP_auth()+""); // 设置SMTP连接和发送邮件的超时时间，因为缺省是无限超时，单位毫秒 props.setProperty("mail.smtp.connectiontimeout", "15000");//SMTP服务器连接超时时间 props.setProperty("mail.smtp.timeout","60000");//发送邮件超时时间 if(mailconfig.getSMTP_auth()){ MailSMTPAuthenticator smtpAutr= new MailSMTPAuthenticator(); smtpAutr.setsName(mailconfig.getSTMP_user()); smtpAutr.setsPassword("sunwei951025"); mailSession = Session.getInstance(props, smtpAutr); }else{ mailSession = Session.getInstance(props); } mailSession.setDebug(true); mMessage = new MimeMessage(mailSession); try { //发件人 InternetAddress formAddress = new InternetAddress(mailconfig.getSMTP_from()); formAddress.setPersonal("了然于心"); mMessage.setFrom(formAddress); //发送时间 mMessage.setSentDate(new Date()); //收件人 InternetAddress[] toAddress = {new InternetAddress("sunw@hrocloud.com"),new InternetAddress("sunwei1995sh@126.com")}; mMessage.setRecipients(Message.RecipientType.TO,toAddress); //主题 mMessage.setSubject("孙维主题"); //内容 MimeBodyPart contentBodyPart = new MimeBodyPart(); contentBodyPart.setContent("此邮件为系统自己主动发送<img src='cid:a'><img src='cid:a'>","text/html;charset=UTF-8"); //cid必须和相关图片的ContentID相同才会在邮件正文显示图片。
//图片
MimeBodyPart imgAff = new MimeBodyPart();
imgAff.setDataHandler(new DataHandler(new FileDataSource("d:\IO.jpg")));
imgAff.setContentID("a");
MimeMultipart addM = new MimeMultipart();
addM.addBodyPart(contentBodyPart);
addM.addBodyPart(imgAff);
addM.setSubType("related");
// 图班与正文的 body
MimeBodyPart affContent = new MimeBodyPart();
affContent.setContent(addM);
//附件
MimeBodyPart affDoc = new MimeBodyPart();
affDoc.setDataHandler(new DataHandler(new FileDataSource("d:\业务流程脚本.sql")));
affDoc.setFileName(MimeUtility.encodeText("业务流程脚本.sql"));
affDoc.setContentID("UUud");
MimeMultipart text = new MimeMultipart();
text.addBodyPart(affContent);
text.addBodyPart(affDoc);
text.setSubType("mixed");
mMessage.setContent(text);
mMessage.saveChanges();
Transport transport = null;
transport = mailSession.getTransport("smtp");
transport.connect(mailconfig.getSTMP_user(),mailconfig.getSTMP_pass());
transport.sendMessage(mMessage, mMessage.getAllRecipients());
transport.close();
} catch (
MessagingException | UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }
带图片的邮件概念图
