java mail 初步

package cn.itcast.javamail;import java.util.Properties;import javax.activation.DataHandler;import javax.activation.FileDataSource;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.Session;import javax.mail.Transport;import javax.mail.internet.AddressException;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeBodyPart;import javax.mail.internet.MimeMessage;import javax.mail.internet.MimeMultipart;import javax.mail.internet.MimeUtility;import org.junit.Test;import cn.itcast.utils.MailUtils;/** * java邮件发送 *  * @author seawind *  */public class JavaMailTest {@Test// 编写最复杂一封邮件，既要内嵌图片，也要携带附件public void demo5() throws Exception {// 步骤一 创建SessionSession session = MailUtils.createSession();// 步骤二 编写邮件MessageMimeMessage message = new MimeMessage(session);// 设置邮件头（简单邮件和复杂邮件相同message.setFrom(new InternetAddress("[e-mail]"));message.setRecipients(Message.RecipientType.TO, "[e-mail]");message.setSubject("javamail发送最复杂邮件");// 设置邮件体MimeBodyPart pic = new MimeBodyPart();pic.setDataHandler(new DataHandler(new FileDataSource("beauty.jpg")));pic.setContentID("myimg");// 内嵌图片唯一标识MimeBodyPart attachment = new MimeBodyPart();attachment.setDataHandler(new DataHandler(new FileDataSource("大嘴巴 - maybe的机率.mp3")));attachment.setFileName(MimeUtility.encodeText("大嘴巴 - maybe的机率.mp3"));// 附件解决中文路乱码MimeBodyPart content = new MimeBodyPart();content.setContent("<h1>最复杂邮件，有图片，有附件</h1><img src='cid:myimg' />","text/html;charset=utf-8");// 整合MimeMultipart mp1 = new MimeMultipart();mp1.addBodyPart(pic);mp1.addBodyPart(content);mp1.setSubType("related");MimeBodyPart temp = new MimeBodyPart();// 将multipart转换bodypart可以和其它bodypart一起合并temp.setContent(mp1);MimeMultipart mp2 = new MimeMultipart();mp2.addBodyPart(attachment);mp2.addBodyPart(temp);mp2.setSubType("mixed");message.setContent(mp2);// 步骤三 发送邮件 TransportMailUtils.sendMail(session, message);}@Test// 携带附件邮件public void demo4() throws Exception {// 步骤一：创建SessionProperties properties = new Properties();properties.put("mail.transport.protocol", "smtp");properties.put("mail.smtp.host", "localhost");properties.put("mail.smtp.auth", "true");// 连接认证properties.put("mail.debug", "true");// 在控制台显示连接日志信息Session session = Session.getInstance(properties);// 与邮件服务器连接会话// 步骤二：创建MessageMimeMessage message = new MimeMessage(session);// 设置邮件头（简单邮件和复杂邮件相同message.setFrom(new InternetAddress("[e-mail]"));message.setRecipients(Message.RecipientType.TO, "[e-mail]");message.setSubject("javamail发送携带附件邮件");// 设置邮件体MimeBodyPart attachment = new MimeBodyPart();// 链接数据文件attachment.setDataHandler(new DataHandler(new FileDataSource("大嘴巴 - maybe的机率.mp3")));// 显示附件名// 中文附件名编码 JavaMail 提供工具类 MimeUtilityattachment.setFileName(MimeUtility.encodeText("大嘴巴 - maybe的机率.mp3"));// 设置filename自动生成Content-Disposition:attachment;filename=xxxMimeBodyPart content = new MimeBodyPart();content.setContent("<h1>附件是首好听的歌曲！</h1>", "text/html;charset=utf-8");MimeMultipart mimeMultipart = new MimeMultipart();mimeMultipart.addBodyPart(attachment);mimeMultipart.addBodyPart(content);mimeMultipart.setSubType("mixed");message.setContent(mimeMultipart);// 步骤三：Transport发送邮件Transport transport = session.getTransport();transport.connect("aaa", "111");transport.sendMessage(message, message.getAllRecipients());}@Test// 内嵌图片邮件public void demo3() throws Exception {// 发送邮件需要三个步骤// 步骤一：创建SessionProperties properties = new Properties();properties.put("mail.transport.protocol", "smtp");properties.put("mail.smtp.host", "localhost");properties.put("mail.smtp.auth", "true");// 连接认证properties.put("mail.debug", "true");// 在控制台显示连接日志信息Session session = Session.getInstance(properties);// 与邮件服务器连接会话// 步骤二：创建MessageMimeMessage message = new MimeMessage(session);// 设置邮件头（简单邮件和复杂邮件相同message.setFrom(new InternetAddress("[e-mail]"));message.setRecipients(Message.RecipientType.TO, "[e-mail]");message.setSubject("javamail发送内嵌图片邮件");// 设置邮件体（简单邮件和复杂邮件区别 就在于邮件体）MimeBodyPart pic = new MimeBodyPart();// 图片// 链接数据文件pic.setDataHandler(new DataHandler(new FileDataSource("beauty.jpg")));// DataSource dataSource = new FileDataSource("beauty.jpg");// DataHandler dataHandler = new DataHandler(dataSource);// pic.setDataHandler(dataHandler);// 设置一个唯一标识(用于在正文中引入)pic.setContentID("mypic");MimeBodyPart content = new MimeBodyPart(); // 邮件正文content.setContent("<h1>美女图片</h1><img src='cid:mypic' />","text/html;charset=utf-8");// 将两个BodyPart整合MimeMultipart mimeMultipart = new MimeMultipart();mimeMultipart.addBodyPart(pic);mimeMultipart.addBodyPart(content);// 设置关系mimeMultipart.setSubType("related");message.setContent(mimeMultipart);// message.writeTo(System.out);// 步骤三：Transport发送邮件Transport transport = session.getTransport();transport.connect("aaa", "111");transport.sendMessage(message, message.getAllRecipients());}@Testpublic void demo2() throws AddressException, MessagingException {// 步骤一 创建与邮件服务器连接会话Properties properties = new Properties();// 配置与服务器连接参数// 设置properties 属性properties.put("mail.transport.protocol", "smtp");properties.put("mail.smtp.host", "localhost");properties.put("mail.smtp.auth", "true");// 连接认证properties.put("mail.debug", "true");// 在控制台显示连接日志信息Session session = Session.getInstance(properties);// 与邮件服务器连接会话// 步骤二 编写MessageMimeMessage message = new MimeMessage(session);// 代表一封邮件// from字段message.setFrom(new InternetAddress("[e-mail]"));// to 字段message.setRecipients(Message.RecipientType.TO, "[e-mail]");// subject字段message.setSubject("javamail发送简单邮件");// 邮件正文内容message.setText("使用javamail 可以发送简单邮件 ...");// 步骤三 使用Transport发送邮件Transport transport = session.getTransport();// 发邮件前进行身份校验// transport.connect("aaa", "111");transport.sendMessage(message, message.getAllRecipients());}@Testpublic void demo1() throws Exception {// 使用JavaMailAPI 设计一封邮件// 步骤一 创建 javamail中SessionProperties properties = new Properties();// 配置与服务器连接参数Session session = Session.getInstance(properties);// 与邮件服务器连接会话// 步骤二 通过Session创建Message邮件MimeMessage message = new MimeMessage(session);// 代表一封邮件// 步骤三 编写邮件内容// from字段message.setFrom(new InternetAddress("[e-mail]"));// to 字段message.setRecipients(Message.RecipientType.TO, "[e-mail]");// subject字段message.setSubject("javamail发送简单邮件");// 邮件正文内容message.setText("使用javamail 可以发送简单邮件 ...");message.writeTo(System.out);}}