java发送邮件，最好给个简单实例

Question

如题。  

Answer 1

javamail一段代码public static void main(String[] args) throws Exception{
Properties props = new Properties();
props.setProperty("mail.smtp.auth", "true");
props.setProperty("mail.transport.protocol", "smtp");
props.setProperty("mail.host", "smtp.163.com");
Session session = Session.getInstance(props,
new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication(){
return new PasswordAuthentication("username","pwd");//填"用户名","密码"
}
}
);
session.setDebug(true);Message msg = new MimeMessage(session);
msg.setFrom(new InternetAddress("[email protected]"));//填发送人email地址
msg.setSubject("subject");//填email标题
msg.setRecipients(RecipientType.TO,  
InternetAddress.parse("[email protected]"));//接收人email地址
msg.setContent("content");//email正文Transport.send(msg);
}对应位置填你的email地址，用户名，密码等信息。一个简单的发送email的代码了，项目里要加入mail.jar
jar包通过这个地址下载
http://www.oracle.com/technetwork/java/javamail/index-138643.html

Answer 2

 报错：
Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/LineInputStream
at javax.mail.Session.loadProvidersFromStream(Session.java:928)
at javax.mail.Session.access$000(Session.java:174)
at javax.mail.Session$1.load(Session.java:870)
at javax.mail.Session.loadResource(Session.java:1084)
at javax.mail.Session.loadProviders(Session.java:889)
at javax.mail.Session.<init>(Session.java:210)
at javax.mail.Session.getInstance(Session.java:232)
at org.test.youjian.Test.main(Test.java:144)什么类没编译。　架包都导过了