从批处理文件运行时，Java Jar 文件不发送电子邮件？

Question

全部，

以下代码工作正常，并在从 Eclipse 中运行时发送电子邮件。但是，当我从 eclipse 导出为 jar 文件并从批处理文件运行以下命令时，它会出现错误。注意:jar 文件中的其他文件在从批处理文件运行时可以正常工作。

java -cp C:\Users\Administrator\Email.jar LotusNotes.SendEmail

异常(exception):

Exception in thread "main" java.lang.NoClassDefFoundError: javax/mail/MessagingE
xception
        at LotusNotes.RunBackUpSourceCopy.main(RunBackUpSourceCopy.java:49)
        Caused by: java.lang.ClassNotFoundException: javax.mail.MessagingException
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)

SendEmail 类:

public class SendEmail {

public  String to ;
public  String from;
public  String host;

public SendEmail(){
       to = "xyz@gmail.com";
       from = "localhost";
       host = "localhost";}



public  void send_production_email(String reportDate){

    Properties properties = System.getProperties();
    properties.setProperty("mail.smtp.host", host);

      Session session = Session.getDefaultInstance(properties);

      try{

       MimeMessage message = new MimeMessage(session);
       message.setFrom(new InternetAddress(from));
       message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
       message.setSubject("Subject Line!");
       message.setText("Test email!");
       Transport.send(message);
       System.out.println("Sent message successfully....");
      }
      catch (MessagingException mex) {
         mex.printStackTrace();
      }

}


public static void main(String[] args) {

        System.out.println("Preparing to Send Email ...");

        SendEmail email = new SendEmail();
        email.send_production_email("test production");

}

}

Answer 1

看来您需要添加 javax mail jar到你的类路径。

编辑

java -cp "C:\Users\Administrator\Email.jar";"C:\Users\Administrator\ExternalJarFiles\mail.jar"; LotusNotes.SendEmail

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