import java.net.URL;import java.security.Security;import java.util.Properties;import javax.activation.DataHandler;import javax.activation.FileDataSource;import javax.mail.Authenticator;import javax.mail.Message;import javax.mail.PasswordAuthentication;import javax.mail.Session;import javax.mail.Transport;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeBodyPart;import javax.mail.internet.MimeMessage;import javax.mail.internet.MimeMultipart;//发送一封图文加附件的邮件public class SendMail {    public static void main(String[] args) {        try {            //设置SSL连接、邮件环境            Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());              final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";              Properties props = System.getProperties();            props.setProperty("mail.smtp.host", "smtp.qq.com");            props.setProperty("mail.smtp.socketFactory.class", SSL_FACTORY);            props.setProperty("mail.smtp.socketFactory.fallback", "false");            props.setProperty("mail.smtp.port", "465");            props.setProperty("mail.smtp.socketFactory.port", "465");            props.setProperty("mail.smtp.auth", "true");//            props.put("mail.smtp.host", "smtp.qq.com");//            props.put("mail.smtp.socketFactory.class", SSL_FACTORY);//            props.put("mail.smtp.socketFactory.fallback", "false");//            props.put("mail.smtp.port", "465");//            props.put("mail.smtp.socketFactory.port", "465");//            props.put("mail.smtp.auth", "true");            //建立邮件会话            Session session = Session.getDefaultInstance(props, new Authenticator() {                //身份认证                protected PasswordAuthentication getPasswordAuthentication() {                    return new PasswordAuthentication("username", "password");                }            });            //建立邮件对象            MimeMessage message = new MimeMessage(session);            //设置邮件的发件人、收件人、主题                //附带发件人名字//            message.setFrom(new InternetAddress("from_mail@qq.com", "optional-personal"));            message.setFrom(new InternetAddress("from_mail@qq.com"));            message.setRecipients(Message.RecipientType.TO, "to_mail@qq.com");            message.setSubject("通过javamail发出！！！");            //文本部分            MimeBodyPart textPart = new MimeBodyPart();            textPart.setContent("图<img src=http://www.mamicode.com/‘cid:myimg‘/>文加附件邮件测试", "text/html;charset=UTF-8");            //内嵌图片部分            MimeBodyPart imagePart = new MimeBodyPart();            imagePart.setDataHandler(new DataHandler(new FileDataSource("imagePath")));//图片路径            imagePart.setContentID("myimg");            //图文整合，关联关系            MimeMultipart mmp1 = new MimeMultipart();            mmp1.addBodyPart(textPart);            mmp1.addBodyPart(imagePart);            mmp1.setSubType("related");            MimeBodyPart textImagePart = new MimeBodyPart();            textImagePart.setContent(mmp1);            //附件部分            MimeBodyPart attachmentPart = new MimeBodyPart();            DataHandler dh = new DataHandler(new FileDataSource("filePath"));//文件路径            String fileName = dh.getName();            attachmentPart.setDataHandler(dh);            attachmentPart.setFileName(fileName);            //图文和附件整合，复杂关系            MimeMultipart mmp2 = new MimeMultipart();            mmp2.addBodyPart(textImagePart);            mmp2.addBodyPart(attachmentPart);            mmp2.setSubType("mixed");            //将以上内容添加到邮件的内容中并确认            message.setContent(mmp2);            message.saveChanges();            //发送邮件            Transport.send(message);        } catch (Exception e) {            e.printStackTrace();        }    }}

import java.security.Security;import java.text.SimpleDateFormat;import java.util.Properties;import javax.mail.FetchProfile;import javax.mail.Folder;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.Session;import javax.mail.Store;import javax.mail.URLName;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeUtility;//查看收件箱邮件public class Inbox {    public static void main(String[] args) {        //设置SSL连接、邮件环境        Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());        final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";        Properties props = System.getProperties();        props.setProperty("mail.pop3.host", "smtp.qq.com");        props.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY);        props.setProperty("mail.pop3.socketFactory.fallback", "false");        props.setProperty("mail.pop3.port", "995");        props.setProperty("mail.pop3.socketFactory.port", "995");        props.setProperty("mail.pop3.auth", "true");//        props.put("mail.pop3.host", "smtp.qq.com");//        props.put("mail.pop3.socketFactory.class", SSL_FACTORY);//        props.put("mail.pop3.socketFactory.fallback", "false");//        props.put("mail.pop3.port", "995");//        props.put("mail.pop3.socketFactory.port", "995");//        props.put("mail.pop3.auth", "true");        //建立邮件会话        Session session = Session.getDefaultInstance(props, null);        //设置连接邮件仓库的环境        URLName url = new URLName("pop3", "pop.qq.com", 995, null, "username", "password");        Store store = null;        Folder inbox = null;        try {            //得到邮件仓库并连接            store = session.getStore(url);            store.connect();            //得到收件箱并抓取邮件            inbox = store.getFolder("INBOX");              inbox.open(Folder.READ_ONLY);            FetchProfile profile = new FetchProfile();            profile.add(FetchProfile.Item.ENVELOPE);            Message[] messages = inbox.getMessages();            inbox.fetch(messages, profile);            //打印收件箱邮件部分信息            int length = messages.length;            System.out.println("收件箱的邮件数：" + length);            System.out.println("-------------------------------------------\n");            for (int i = 0; i < length; i++) {                String from = MimeUtility.decodeText(messages[i].getFrom()[0].toString());                InternetAddress ia = new InternetAddress(from);                System.out.println("发件人：" + ia.getPersonal() + ‘(‘ + ia.getAddress() + ‘)‘);                System.out.println("主题：" + messages[i].getSubject());                System.out.println("邮件大小：" + messages[i].getSize());                System.out.println("邮件发送时间:" + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(messages[i].getSentDate()));                System.out.println("-------------------------------------------\n");            }        } catch (Exception e) {            e.printStackTrace();        } finally {            try {                inbox.close(false);            } catch (MessagingException e) {                e.printStackTrace();            }            try {                store.close();            } catch (MessagingException e) {                e.printStackTrace();            }        }    }}