出现commons.mail发送email出现:java.lang.NoClassDefFoundError错误

[pingpingdong]

我编译成功了,但是执行的时候出现如下错误:
java.lang.NoClassDefFoundError: TestEmail
Caused by: java.lang.ClassNotFoundException: TestEmail
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: TestEmail. Program will exit.
Exception in thread "main"


我的环境变量设置的为(CLASSPATH):
.;%JAVA_HOME%\lib;D:\java\lib\commons-email-1.1.jar;D:\java\lib\commons-lang-2.4.jar;D:\java\lib\mail.jar
JAVA_HOME也设置了,bin目录也在path变量中加入了,但是运行的时候就是出错,大家帮个忙吧,多谢了!


我的代码如下,是从网上找的:

import org.apache.commons.mail.EmailException;
import org.apache.commons.mail.HtmlEmail;


public class mailSender {

/**
   * @param args
   */
public static void main(String[] args) {
   //不要使用SimpleEmail,会出现乱码问题
    HtmlEmail email = new HtmlEmail();
    try{
       //这里是发送服务器的名字：，163的如下：
        email.setHostName("smtp.163.com");
        //编码集的设置
        email.setCharset("gbk");
        //收件人的邮箱
        email.addTo("[e-mail]");
        //发送人的邮箱
        email.setFrom("[e-mail]", "发送人名称");
        //如果需要认证信息的话，设置认证：用户名-密码。分别为发件人在邮件服务器上的注册名称和密码
        email.setAuthentication("abcd","abcd");
        email.setSubject("下午3：00会议室讨论，请准时参加");
        //要发送的信息
         email.setMsg("下午3：00会议室讨论，请准时参加");
         //发送
         email.send();
   } catch (EmailException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }

}

}

[link_1029]

java.lang.NoClassDefFoundError: TestEmail
没找到这个TestEmail这个类啊,你再看看你的设置呢?

[pingpingdong]

我就想是不是和系统有关系啊,别人网上说是可以正常运行的.

[sunzhyng]

没找到Class，代码里没什么TestEmail

[link_1029]

你先去找找TestEmail这个类

[pingpingdong]

多谢大家帮助了!
下面是我从java2核心技术里面复制的代码,我使用这段代码发送成功了,但是为什么收到的邮件是空白的啊,没有主题,没有内容,发件人和收件人也没有?

/**
 * @version 1.00 1999-08-27
 * @author Cay Horstmann
 */

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.net.*;
import java.io.*;
import javax.swing.*;

public class MailTest
{  public static void main(String[] args)
   {  JFrame frame = new MailTestFrame();
      frame.show();
   }
}

class MailTestFrame extends JFrame
   implements ActionListener
{  public MailTestFrame()
   {  setTitle("MailTest");
      setSize(300, 300);
      addWindowListener(new WindowAdapter()
         {  public void windowClosing(WindowEvent e)
            {  System.exit(0);
            }
         } );

      getContentPane().setLayout(new GridBagLayout());

      GridBagConstraints gbc = new GridBagConstraints();
      gbc.fill = GridBagConstraints.HORIZONTAL;
      gbc.weightx = 0;
      gbc.weighty = 0;

      gbc.weightx = 0;
      add(new JLabel("From:"), gbc, 0, 0, 1, 1);
      gbc.weightx = 100;
      from = new JTextField(20);
      add(from, gbc, 1, 0, 1, 1);

      gbc.weightx = 0;
      add(new JLabel("To:"), gbc, 0, 1, 1, 1);
      gbc.weightx = 100;
      to = new JTextField(20);
      add(to, gbc, 1, 1, 1, 1);

      gbc.weightx = 0;
      add(new JLabel("SMTP server:"), gbc, 0, 2, 1, 1);
      gbc.weightx = 100;
      smtpServer = new JTextField(20);
      add(smtpServer, gbc, 1, 2, 1, 1);

      gbc.fill = GridBagConstraints.BOTH;
      gbc.weighty = 100;
      message = new JTextArea();
      add(new JScrollPane(message), gbc, 0, 3, 2, 1);

      response = new JTextArea();
      add(new JScrollPane(response), gbc, 0, 4, 2, 1);

      gbc.weighty = 0;
      JButton sendButton = new JButton("Send");
      sendButton.addActionListener(this);
      JPanel buttonPanel = new JPanel();
      buttonPanel.add(sendButton);
      add(buttonPanel, gbc, 0, 5, 2, 1);
   }

   private void add(Component c, GridBagConstraints gbc,
      int x, int y, int w, int h)
   {  gbc.gridx = x;
      gbc.gridy = y;
      gbc.gridwidth = w;
      gbc.gridheight = h;
      getContentPane().add(c, gbc);
   }

   public void actionPerformed(ActionEvent evt)
   {  SwingUtilities.invokeLater(new Runnable()
        {  public void run()
           {   sendMail();
           }
        });
   }

   public void sendMail()
   {  try
      {  Socket s = new Socket(smtpServer.getText(), 25);

         out = new PrintWriter(s.getOutputStream());
         in = new BufferedReader(new
            InputStreamReader(s.getInputStream()));

         String hostName
            = InetAddress.getLocalHost().getHostName();

         send(null);
         send("HELO " + hostName);
         send("MAIL FROM: " + from.getText());
         send("RCPT TO: " + to.getText());
         send("DATA");
         out.println(message.getText());
         send(".");
         s.close();
      }
      catch (IOException exception)
      {  response.append("Error: " + exception);
      }
   }

   public void send(String s) throws IOException
   {  if (s != null)
      {  response.append(s + "\n");
         out.println(s);
         out.flush();
      }
      String line;
      if ((line = in.readLine()) != null)
         response.append(line + "\n");
   }

   private BufferedReader in;
   private PrintWriter out;
   private JTextField from;
   private JTextField to;
   private JTextField smtpServer;
   private JTextArea message;
   private JTextArea response;
}

[andyheway]

TestEmail找不到，看看你的\WEB-INF\lib下面有没有commons-email-1.1.jar这个包
下面的代码，如果你写上内容的话，应该是可以收到的，件名好像没有地方填吧。

[Sou2012]

少包。。。

[Sou2012]

少包。。。