JavaMail实现发送邮件功能

本文实例为大家分享了javamail实现发送邮件功能的具体代码，供大家参考，具体内容如下

用java发邮件，必须要导入新的包

       mail.jar – 发邮件的核心包

       activation.jar – 对用户和密码加密.

在mail.jar中有三个核心类：

       javax.mail.session – 是指与邮件服务器会话。整个项目中只要一个就可以了.

       javax.mail.message（接口）  - 准备发送数据信息。

                      mimemessage － 可以设置类型的数据信息。

       transport – 它拥有一个方法可以发送message。

@test
 public void sendmail() throws exception{
  //1,声明properties对象放信息
  properties props = new properties();
  //设置连接哪一台服务器
  props.setproperty("mail.host", "smtp.163.com");
  //设置是否认证：
  props.setproperty("mail.smtp.auth", "true");
  
  //2，声明用户名和密码
  authenticator auth = new authenticator(){
   //返回用户名和密码对象
   @override
   protected passwordauthentication getpasswordauthentication() {
    passwordauthentication pa = new passwordauthentication("[e-mail]", "123456");
    return pa;
   }
  };
  //3,获取session对象
  session session = session.getdefaultinstance(props, auth);
  //设置session为调试模式
  session.setdebug(true);
  //4,声明信息
  mimemessage mm1 = new mimemessage(session);
  //5,设置发件人信息
  address form = new internetaddress("[e-mail]"); 
  mm1.setfrom(form);
  //6,设置收件人 ,recipienttype:发送，抄送，密送 类型
  mm1.setrecipient(recipienttype.to, new internetaddress("[e-mail]"));
  //mm1.setrecipient(recipienttype.cc, new internetaddress(""));//抄送
 
  //7，设置主题
  mm1.setsubject("拉面学习通知");
  string cont = "请点击 <a href='http://www.fsy158.com/news/31_207'>官网新闻</a>查看祝您发财";
  mm1.setcontent(cont, "text/html;charset=utf-8");
  
  //8，发送
  transport.send(mm1);
 
 }

其中的mimetype可是text/plain纯文本。

发送附件：

@test
 public void sendmailwithfile() throws exception{
 properties ps = new properties();
 ps.setproperty("mail.host", "smtp.163.com");
 ps.setproperty("mail.smtp.auth", "true");
 
 authenticator auth = new authenticator(){
  @override
  protected passwordauthentication getpasswordauthentication() {
  return new passwordauthentication("[e-mail]","xxx.");
  } 
 };
 session session = session.getdefaultinstance(ps, auth);
 session.setdebug(true);
 mimemessage msg = new mimemessage(session);
 address address = new internetaddress("[e-mail]");
 msg.setfrom(address);
 //发送给
 msg.setrecipient(recipienttype.to, new internetaddress("[e-mail]"));
 msg.setrecipient(recipienttype.bcc, new internetaddress("[e-mail]"));//密送
 msg.setrecipient(recipienttype.cc, new internetaddress("[e-mail]"));//抄送
 msg.setsubject("$激情小视频*免费观看");
 
 //声明多部件处理
 mimemultipart mm = new mimemultipart();
 
 mimebodypart body1 = new mimebodypart();
 //设置附件
 datasource ds1 = new filedatasource(new file("./img/a.jpg"));
 datahandler dh1 = new datahandler(ds1);
 body1.setdatahandler(dh1);
 //必须设置名称
 body1.setfilename(mimeutility.encodetext("美女.jpg"));
 
 mimebodypart body2 = new mimebodypart();
 datasource ds2 = new filedatasource(new file("./img/b.jpg"));
 datahandler dh2 = new datahandler(ds2);
 body2.setdatahandler(dh2);
 body2.setfilename(mimeutility.encodetext("美女2.jpg"));
 
 mimebodypart body3 = new mimebodypart();
 datasource ds3 = new filedatasource(new file("./img/m.mp3"));
 datahandler dh3 = new datahandler(ds3);
 body3.setdatahandler(dh3);
 body3.setfilename(mimeutility.encodetext("小电影.mp3"));

 //添加body到mm
 mm.addbodypart(body1);
 mm.addbodypart(body2);
 mm.addbodypart(body3);
 
 msg.setcontent(mm);

 //设置发送日期
 calendar c = calendar.getinstance();
 c.add(calendar.date, -5);
 msg.setsentdate(c.gettime());

 //发送
 transport.send(msg);
 }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。