class="java" name="code">/* 在java版经常看到有人问如何用javamail发送邮件?如何接收邮件?如何访问多个文件夹等。问题零散,而历史的回复早已经淹没在问题的海洋之中。 本人之前所做过一个java项目,其中包含有WebMail功能,当初为用java实现而对javamail摸索了一段时间,总算有点收获。看到论坛中的经常有此方面的问题,因此把我的一些经验帖出来,希望对大家有些帮助。 此篇仅介绍用javamail实现发送邮件功能,其中涉及smtp认证,邮件附件发送,及HTML内容邮件等。 其它有关多邮箱的实现,接收POP3邮件及IMAP等内容,将在后续文章中介绍。 如下程序需要:javamail,JAF包,j2ee.jar包含了上述两个包,建议大家安装J2SDKEE或直接拷贝j2ee.jar,将其添加到jbuilder的library中,或系统ClassPath中 */ package com.tntxia.mymail; import java.util.*; import javax.mail.*; import javax.mail.internet.*; import java.util.Date; import javax.activation.*; import java.io.*; public class sendMail { private MimeMessage mimeMsg; // MIME邮件对象 private Session session; // 邮件会话对象 private Properties props; // 系统属性 private boolean needAuth = false; // smtp是否需要认证 private String username = ""; // smtp认证用户名和密码 private String password = ""; private Multipart mp; // Multipart对象,邮件内容,标题,附件等内容均添加到其中后再生成MimeMessage对象 /** * */ public sendMail() { // setSmtpHost(getConfig.mailHost);// 如果没有指定邮件服务器,就从getConfig类中获取 createMimeMessage(); } public sendMail(String smtp) { setSmtpHost(smtp); createMimeMessage(); } /** * * @param hostName * String */ public void setSmtpHost(String hostName) { System.out.println("设置系统属性:mail.smtp.host = " + hostName); if (props == null) props = System.getProperties(); // 获得系统属性对象 props.put("mail.smtp.host", hostName); // 设置SMTP主机 } /** * * @return boolean */ public boolean createMimeMessage() { try { System.out.println("准备获取邮件会话对象!"); session = Session.getDefaultInstance(props, null); // 获得邮件会话对象 } catch (Exception e) { System.err.println("获取邮件会话对象时发生错误!" + e); return false; } System.out.println("准备创建MIME邮件对象!"); try { mimeMsg = new MimeMessage(session); // 创建MIME邮件对象 mp = new MimeMultipart(); return true; } catch (Exception e) { System.err.println("创建MIME邮件对象失败!" + e); return false; } } /** * * @param need * boolean */ public void setNeedAuth(boolean need) { System.out.println("设置smtp身份认证:mail.smtp.auth = " + need); if (props == null) props = System.getProperties(); if (need) { props.put("mail.smtp.auth", "true"); } else { props.put("mail.smtp.auth", "false"); } } /** * * @param name * String * * @param pass * String */ public void setNamePass(String name, String pass) { username = name; password = pass; } /** * * @param mailSubject * String * * @return boolean */ public boolean setSubject(String mailSubject) { System.out.println("设置邮件主题!"); try { mimeMsg.setSubject(mailSubject); return true; } catch (Exception e) { System.err.println("设置邮件主题发生错误!"); return false; } } /** * * @param mailBody * String */ public boolean setBody(String mailBody) { try { BodyPart bp = new MimeBodyPart(); bp.setContent("" + mailBody, "text/html;charset=GB2312"); mp.addBodyPart(bp); return true; } catch (Exception e) { System.err.println("设置邮件正文时发生错误!" + e); return false; } } /** * * @param name * String * * @param pass * String */ public boolean addFileAffix(String filename) { System.out.println("增加邮件附件:" + filename); try { BodyPart bp = new MimeBodyPart(); FileDataSource fileds = new FileDataSource(filename); bp.setDataHandler(new DataHandler(fileds)); bp.setFileName(fileds.getName()); mp.addBodyPart(bp); return true; } catch (Exception e) { System.err.println("增加邮件附件:" + filename + "发生错误!" + e); return false; } } /** * * @param name * String * * @param pass * String */ public boolean setFrom(String from) { System.out.println("设置发信人!"); try { mimeMsg.setFrom(new InternetAddress(from)); // 设置发信人 return true; } catch (Exception e) { return false; } } /** * * @param name * String * * @param pass * String */ public boolean setTo(String to) { if (to == null) return false; try { mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to)); return true; } catch (Exception e) { return false; } } /** * * @param name * String * * @param pass * String */ public boolean setCopyTo(String copyto) { if (copyto == null) return false; try { mimeMsg.setRecipients(Message.RecipientType.CC, (Address[]) InternetAddress.parse(copyto)); return true; } catch (Exception e) { return false; } } /** * * @param name * String * * @param pass * String */ public boolean sendout() { try { mimeMsg.setContent(mp); mimeMsg.saveChanges(); System.out.println("正在发送邮件...."); Session mailSession = Session.getInstance(props, null); Transport transport = mailSession.getTransport("smtp"); transport.connect((String) props.get("mail.smtp.host"), username, password); transport.sendMessage(mimeMsg, mimeMsg.getRecipients(Message.RecipientType.TO)); // transport.send(mimeMsg); System.out.println("发送邮件成功!"); transport.close(); return true; } catch (Exception e) { System.err.println("邮件发送失败!" + e); return false; } } /** * * Just do it as this */ public static void main(String[] args) { String mailbody = "" + "csdn"; sendMail themail = new sendMail("smtp.163.com"); themail.setNeedAuth(true); if (themail.setSubject("标题") == false) return; if (themail.setBody(mailbody) == false) return; if (themail.setTo("tntxia@163.com") == false) return; if (themail.setFrom("tntxia@163.com") == false) return; // if (themail.addFileAffix("c:\\boot.ini") == false) // return; themail.setNamePass("********", "*********"); // 账号密码 if (themail.sendout() == false) return; } }
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