java.lang.NoClassDefFoundError 异常:
用eclipse建立一个java工程,路径:D:\matrix\workspace\email,在该路径下:D:\matrix\workspace\email\com\matrix\send,有个发送电子邮件的类SimpleSender,其.java文件如下:
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package com.matrix.send;
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
public class SimpleSender {
/**
* @param args
*/
public static void main(String[] args)
{
// TODO Auto-generated method stub
try{
String smtpServer=args[0];
String to=args[1];
String from=args[2];
String subject=args[3];
String body=args[4];
send(smtpServer, to, from, subject, body);
}
catch (Exception ex)
{
System.out.println( "Usage: java com.matrix.send.SimpleSender "
+ " smtpServer toAddress fromAddress subjectText bodyText ");
}
System.exit(0);
}
public static void send(String smtpServer, String to, String from, String subject, String body)
{
try
{
Properties props = System.getProperties();
// -- Attaching to default Session, or we could start a new one --
props.put( "mail.smtp.host ", smtpServer);
Session session = Session.getDefaultInstance(props, null);
// -- Create a new message --
Message msg = new MimeMessage(session);
// -- Set the FROM and TO fields --
msg.setFrom(new InternetAddress(from));
msg.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to, false));
// -- We could include CC recipients too --
// if (cc != null)
// msg.setRecipients(Message.RecipientType.CC
// ,InternetAddress.parse(cc, false));
// -- Set the subject and body text --
msg.setSubject(subject);
msg.setText(body);
// -- Set some other header information --
msg.setHeader( "X-Mailer ", "LOTONtechEmail ");
msg.setSentDate(new Date());
// -- Send the message --
Transport.send(msg);
System.out.println( "Message sent OK. ");
}
catch (Exception ex)
{
System.out.println( "send error! ");
ex.printStackTrace();
}
}
}
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在命令行:
D:\matrix\workspace\email\com\matrix\send> java SimpleSender smtp.tom.com matrix2005 matrix2005 "test " "test "
Exception in thread "main " java.lang.NoClassDefFoundError: SimpleSender
请问怎么解决?
------解决方法--------------------------------------------------------
错了。
应该是在D:\matrix\workspace\email下输入：
java com.matrix.send.SimpleSender smtp.tom.com matrix2005 matrix2005 "test " "test "
------解决方法--------------------------------------------------------
在命令行下输入JAVA+类名的时候要把包的名字也包括下去P.S：为什么不在ECLIPSE内直接运行还跑到命令行下。
