场景：

发送email

依赖：

    	
     		
      
       junit
      		
      
       junit
      		
      
       4.4
      		
      
       test
      	
     	
     		
      
       org.apache.commons
      		
      
       commons-email
      		
      
       1.2
      		
      
       compile
      	
     	
     		
      
       commons-io
      		
      
       commons-io
      		
      
       2.1
      		
      
       compile
      	
     
    

实现：

基于commons-email

SimpleEmail：普通文本格式邮件

MultiPartEmail：附件+普通文本格式邮件

HtmlEmail：MultiPartEmail的子类，附件+HTML格式邮件

代码：

private static final Logger logger = Logger.getLogger(EmailTest.class.getName());private static final String emailServer = "smtp.163.com";private static final String emailServerUserEmail = "xxx@163.com";private static final String emailServerUserName = "xx";private static final String emailServerUserPassword = "pwd";private static final String emailEncoding = "utf-8";public void testSimpleEmail(String toEmail, String toName, String subject, String msg) {	try {		SimpleEmail email = new SimpleEmail();		email.setHostName(EmailTest.emailServer);		email.setAuthentication(EmailTest.emailServerUserName,			EmailTest.emailServerUserPassword);		email.setCharset(EmailTest.emailEncoding);		email.setSubject("testSimpleEmail:"+subject);		email.setMsg(msg);		email.setFrom(EmailTest.emailServerUserEmail);		email.addTo(toEmail, toName);		String messageId = email.send();		logger.info("*testSimpleEmail:" + messageId);	} catch (Exception e) {		e.printStackTrace();		throw new RuntimeException(e);	}}public void testMultiPartEmail(String toEmail, String toName, String attachmentPath,	String subject, String msg) {	String attachmentText = FilenameUtils.getName(attachmentPath);	try {		EmailAttachment emailAttachment = new EmailAttachment();		emailAttachment.setPath(attachmentPath);		emailAttachment.setDisposition(EmailAttachment.ATTACHMENT);		emailAttachment.setDescription(attachmentText);		emailAttachment.setName(MimeUtility.encodeText(attachmentText));		MultiPartEmail email = new MultiPartEmail();		email.setHostName(emailServer);		email.setAuthentication(EmailTest.emailServerUserEmail,			EmailTest.emailServerUserPassword);		email.setCharset(emailEncoding);		email.addTo(toEmail, toName);		email.setFrom(EmailTest.emailServerUserEmail, EmailTest.emailServerUserName);		email.setSubject("testMultiPartEmail:"+subject);		email.setMsg(msg);		email.attach(emailAttachment);		String messageId = email.send();		logger.info("*testMultiPartEmail:" + messageId);	} catch (Exception e) {		e.printStackTrace();		throw new RuntimeException(e);	}}public void testHtmlEmail(String toEmail, String toName, String attachmentPath,	String subject, String msg){	String attachmentText = FilenameUtils.getName(attachmentPath);	try {		EmailAttachment emailAttachment = new EmailAttachment();		emailAttachment.setPath(attachmentPath);		emailAttachment.setDisposition(EmailAttachment.ATTACHMENT);		emailAttachment.setDescription(attachmentText);		emailAttachment.setName(MimeUtility.encodeText(attachmentText));			HtmlEmail email = new HtmlEmail();	email.setHostName(emailServer);	email.setAuthentication(EmailTest.emailServerUserName, EmailTest.emailServerUserPassword);	email.setCharset(emailEncoding);	email.addTo(toEmail); 	email.setFrom(EmailTest.emailServerUserEmail, EmailTest.emailServerUserName);	email.setSubject("testHtmlEmail:"+subject);	email.attach(emailAttachment);	email.setHtmlMsg(msg);		String messageId = email.send();	logger.info("*testHtmlEmail:" + messageId);} catch (Exception e) {	e.printStackTrace();	throw new RuntimeException(e);}}public static void main(String[] args) {	EmailTest test = new EmailTest();	String attachmentPath = "G:/hexun.rar";	String subject = "公司通知";	String msg = "hi 
 好消息! 
 今天天气挺好的适合运动 !";	String toEmail = "toemail@163.com";	String toName = "toemail";	try {		test.testHtmlEmail(toEmail, toName, attachmentPath, subject, msg);		test.testMultiPartEmail(toEmail, toName, attachmentPath, subject, msg);		test.testSimpleEmail(toEmail, toName, subject, msg);	} catch (Exception e) {		e.printStackTrace();	}}