sendmail.java

一个注册系统,Java的Mod1格式的

package com.jdon.simpleregister;

import java.io.*;
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
import javax.activation.FileDataSource;

/**
 *
 * 本程序为帮助初学者了解Jsp/javabean　不建议商业用途　进一步使用请参考Struts框架
 *
 * J道版权所有　
 * J道(http://www.jdon.com)　Java的解决之道。
 *
 */



/**
 *  首先安装javamail 和activation 到java.sun.com下载
 *  需要指定smtp服务器,如果用sendmail,需要开放本地的SMTP服务:
 *  1. 在/etc/mail/access中加入 127.0.0.1 relay
 *  2./usr/bin/makemap hash /etc/mail/access.db < /etc/mail/access
 *
 * 本程序可以从JSP中以bean调用或被其他类以对象引用调用
 *  http://www.jdon.com/
 *
 */
public class SendMail {
  private String msgText = null;
  private String subject = null;
  private String smtpHost = null;
  private String from = null;
  private String to = null;
  public void setMsgText(String msgText) {
    this.msgText = msgText;
  }

  public void setSubject(String subject) {
    this.subject = subject;
  }

  public void setSmtpHost(String smtpHost) {
    this.smtpHost = smtpHost;
  }

  public void setFrom(String from) {
    this.from = from;
  }

  public void setTo(String to) {
    this.to = to;
  }

  public SendMail() {}

  public SendMail(String msgText, String subject, String smtpHost, String from,
                  String to) {
    this.msgText = msgText;
    this.subject = subject;
    this.smtpHost = smtpHost;
    this.from = from;
    this.to = to;
  }

  public void sendnow() throws Exception {
    try {
      Properties props = new Properties();
      props.setProperty("mail.smtp.host", smtpHost);
      Session session = Session.getDefaultInstance(props, null);

      MimeMessage message = new MimeMessage(session);
      message.setFrom(new InternetAddress(from));
      InternetAddress[] address = {
          new InternetAddress(to)};
      message.setRecipients(Message.RecipientType.TO, address);

      message.setSubject(subject); //设定主题
      message.setSentDate(new Date()); //设定发送时间
      message.setText(msgText);

      //发送邮件
      Transport.send(message);
    }
    catch (Exception ex) {
      throw new Exception("SendMail.sendnow" + ex.getMessage());

    }
  }
}