(转)JavaMail邮件发送-发送一个文本邮件和一些问题说明

需要下载的JAR包：

JavaMail：http://www.oracle.com/technetwork/java/javamail/index.html 

JAF：http://www.oracle.com/technetwork/java/javase/downloads/index-135046.html 

加入的包有：mail.jar activation.jar

你要准备一个邮箱账户，就用网易的吧，然后打开SMTP功能

 

 

关于网易的一些端口信息参考下面：

 每个公司都是不一样的，使用SSL的和不实用的也不一样

 使用的开发和编译环境是JDK1.4，如果你使用的是JDK1.5环境，那么你的环境需要修改一些东西，找到 javaee.jar 删除里面的 mial 包，否则会有冲突

否则会报错：

Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/LineInputStream
    at javax.mail.Session.loadProvidersFromStream(Session.java:928)
    at javax.mail.Session.access$000(Session.java:174)
    at javax.mail.Session$1.load(Session.java:870)
    at javax.mail.Session.loadResource(Session.java:1084)
    at javax.mail.Session.loadProviders(Session.java:889)
    at javax.mail.Session.<init>(Session.java:210)
    at javax.mail.Session.getInstance(Session.java:249)
    at com.mail.TextMail.main(TextMail.java:22)

 下面我直接贴代码了

package com.mail;
import java.util.Date;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
// 如果你使用JDK1.4以上运行 会出现 Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/LineInputStream
// 需要你找到 javaee.jar 删掉 里面的 mail 包
public class TextMail {
    public static void main(String[] args) throws Exception {
        // 配置文件对象
        Properties props = new Properties();
        // 邮箱服务地址
        props.put( "mail.smtp.host ", "smtp.163.com ");
        // 是否进行验证
        props.put("mail.smtp.auth", "true");
        // 创建一个会话
        Session session = Session.getInstance(props);
        // 打开调试，会打印与邮箱服务器回话的内容
        session.setDebug(true);
        Message message = new MimeMessage(session);
        // 如果发送人没有写对，那么会出现 javamail 550 Invalid User
        // 如果发送人写的和使用的帐号不一致，则会出现 553 Mail from must equal authorized user
        InternetAddress from = new InternetAddress("test20120711120200@163.com");
        from.setPersonal(MimeUtility.encodeText("java小强<test20120711120200@163.com>"));
        message.setFrom(from);
        InternetAddress to = new InternetAddress("455213313@qq.com");
        message.setRecipient(Message.RecipientType.TO, to);
        message.setSubject(MimeUtility.encodeText("强哥邀请，谁敢不从！"));
        message.setText("强哥邀请你访问我的博客：http://cuisuqiang.iteye.com/！");
        message.setSentDate(new Date());
        Transport transport = session.getTransport("smtp");
        // 具体你使用邮箱的smtp地址和端口，应该到邮箱里面查看，如果使用了SSL，网易的端口应该是 465/994
        transport.connect("smtp.163.com", 25, "test20120711120200", "test123456");
        transport.sendMessage(message, message.getAllRecipients());
        transport.close();
        System.out.println("发送完毕");
    }
}

需要注意的有

InternetAddress from = new InternetAddress("test20120711120200@163.com");

和

transport.connect("smtp.163.com", 25, "test20120711120200", "test123456");

这两个邮箱的地址必须相同，否则会出现

Exception in thread "main" javax.mail.MessagingException: 553 Mail from must equal authorized user

    at com.sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.java:1020)
    at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:716)
    at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:388)
    at com.mail.TextMail.main(TextMail.java:38)

你上网查都是说用户验证不对，其实一般大家都是按照别人代码拷贝的，然后修改了用户和密码，怎么会不对！

我这个账户和密码都是可以用的，对不起网易了！

由于上面我设置了打印调试，所以你在控制台会看到如下内容：

DEBUG: setDebug: JavaMail version 1.3.1
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.163.com", port 25

220 163.com Anti-spam GT for Coremail System (163com[20111010])
DEBUG SMTP: connected to host "smtp.163.com", port: 25

EHLO cuisuqiang
250-mail
250-PIPELINING
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250-coremail 1Uxr2xKj7kG0xkI17xGrU7I0s8FY2U3Uj8Cz28x1UUUUU7Ic2I0Y2UrgdNesUCa0xDrUUUUj
250-STARTTLS
250 8BITMIME
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN"
DEBUG SMTP: Found extension "AUTH=LOGIN", arg "PLAIN"
DEBUG SMTP: Found extension "coremail", arg "1Uxr2xKj7kG0xkI17xGrU7I0s8FY2U3Uj8Cz28x1UUUUU7Ic2I0Y2UrgdNesUCa0xDrUUUUj"
DEBUG SMTP: Found extension "STARTTLS", arg ""
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Attempt to authenticate
AUTH LOGIN
334 dXNlcm5hbWU6
dGVzdDIwMTIwNzExMTIwMjAw
334 UGFzc3dvcmQ6
dGVzdDEyMzQ1Ng==
235 Authentication successful
DEBUG SMTP: use8bit false
MAIL FROM:<test20120711120200@163.com>
250 Mail OK
RCPT TO:<455213313@qq.com>
250 Mail OK
DEBUG SMTP: Verified Addresses
DEBUG SMTP:   455213313@qq.com
DATA
354 End data with <CR><LF>.<CR><LF>
Message-ID: <14518194.1341995865564.JavaMail.Administrator@cuisuqiang>
Date: Wed, 11 Jul 2012 16:37:45 +0800 (CST)
From: "=?GBK?Q?java=D0=A1=C7=BF<test20120711120200@163.com>?=" <test20120711120200@163.com>
To: 455213313@qq.com
Subject: =?GBK?B?x7+459H7x+ujrMutuNKyu7TTo6E=?=
Mime-Version: 1.0
Content-Type: text/plain; charset=GBK
Content-Transfer-Encoding: quoted-printable

=C7=BF=B8=E7=D1=FB=C7=EB=C4=E3=B7=C3=CE=CA=CE=D2=B5=C4=B2=A9=BF=CD=A3=BAhtt=
p://cuisuqiang.iteye.com/=A3=A1
.
250 Mail OK queued as smtp2,DNGowEB52UhcO_1PZmMMCA--.937S2 1341995868
QUIT

这些都是程序与邮件服务商的一些交互信息！

请您到ITEYE看我的原创：http://cuisuqiang.iteye.com

或支持我的个人博客，地址：http://www.javacui.com