javamail邮件发送方法实例参考。
注:
java.lang.NoClassDefFoundError: javax/mail/Authenticator
 
java.lang.NoClassDefFoundError: javax/mail/Authenticator
| 缺少activation.jar包和mail.jar包 activation.jar下载地址http://repo1.maven.org/maven2/javax/activation/activation/1.1/activation-1.1.jar mail.jar包下载地址  下载后放入TOMCAT_HOME/lib目录下,TOMCAT_HOME是tomcat的安装目录,然后重启tomcat即可 | 
转自:http://hi.baidu.com/xjll1314/blog/item/b8c595ee8b2e2d2d62d09f00
我在使用时由于版本问题,在JB中可直接运行,但生成exe时提示上述错误,使用新版本jar包后,问题解决。
本人将这几段java代码 放入了 SRC的java代码区中  
下面是相关的 3个类
package com.util.mail;
import java.util.Properties; 
public class MailSenderInfo { 
// 发送邮件的服务器的IP和端口 
private String mailServerHost; 
private String mailServerPort = “25″; 
// 邮件发送者的地址 
private String fromAddress; 
// 邮件接收者的地址 
private String toAddress; 
// 登陆邮件发送服务器的用户名和密码 
private String userName; 
private String password; 
// 是否需要身份验证 
private boolean validate = false; 
// 邮件主题 
private String subject; 
// 邮件的文本内容 
private String content; 
// 邮件附件的文件名 
private String[] attachFileNames;
public Properties getProperties(){ 
} 
public String getMailServerHost() { 
} 
public void setMailServerHost(String mailServerHost) { 
}
public String getMailServerPort() { 
}
public void setMailServerPort(String mailServerPort) { 
}
public boolean isValidate() { 
}
public void setValidate(boolean validate) { 
}
public String[] getAttachFileNames() { 
}
public void setAttachFileNames(String[] fileNames) { 
}
public String getFromAddress() { 
} 
public void setFromAddress(String fromAddress) { 
}
public String getPassword() { 
}
public void setPassword(String password) { 
}
public String getToAddress() { 
} 
public void setToAddress(String toAddress) { 
} 
public String getUserName() { 
}
public void setUserName(String userName) { 
}
public String getSubject() { 
}
public void setSubject(String subject) { 
}
public String getContent() { 
}
public void setContent(String textContent) { 
} 
} 
//—————————- ————————————————————————–
package com.util.mail;
package com.util.mail;
import java.util.Date; 
import java.util.Properties;
import javax.mail.Address; 
import javax.mail.BodyPart; 
import javax.mail.Message; 
import javax.mail.MessagingException; 
import javax.mail.Multipart; 
import javax.mail.Session; 
import javax.mail.Transport; 
import javax.mail.internet.InternetAddress; 
import javax.mail.internet.MimeBodyPart; 
import javax.mail.internet.MimeMessage; 
import javax.mail.internet.MimeMultipart; 
public class SimpleMailSender  
public boolean sendTextMail(MailSenderInfo mailInfo) { 
authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword()); 
} 
public static boolean sendHtmlMail(MailSenderInfo mailInfo){ 
authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword());
} 
} 
java 调用
//——————————————————————————————————
import javax.mail.*;
public class MyAuthenticator extends Authenticator{
String userName=null;
String password=null;
public MyAuthenticator(){
}
public MyAuthenticator(String username, String password) {
this.userName = username;
this.password = password;
}
protected PasswordAuthentication getPasswordAuthenticatio
return new PasswordAuthentication(userName, password);
}
public static void main(String[] args){
}
//——————————————————————————————————
groovy调用