(1)下载Commons Email
Commons Email位于Apache的Commons下。
地址是:http://commons.apache.org/email/
下载地址是:http://commons.apache.org/downloads/download_email.cgi
(2)官方简介:
Commons Email
aims to provide a API for sending
email. It is built on top of the Java Mail API, which it aims to
simplify. Some of the mail classes that are provided are as follows:
● SimpleEmail
- This class is used to send basic text based emails
.
● MultiPartEmail
- This class is used to send multipart messages
. This allows a text message with attachments
either inline or attached.
● HtmlEmail
- This class is used to send HTML formatted emails
. It has all of the capabilities as MultiPartEmail allowing attachments to be easily added. It also supports embedded images
.
● EmailAttachment
- This is a simple container class to allow for easy handling of attachments
. It is for use with instances of MultiPartEmail and HtmlEmail.
(3)
Commons-Email 简单教程
Commons Emails ,目的是为了简化JavaMail。
知道有它几个class吗?你一定想不到,只有8个!
一:Quick Start
通过SimpleEmail发送邮件
1
java.lang.Object
2
org.apache.commons.mail.Email
3
org.apache.commons.mail.SimpleEmail
1
SimpleEmail email
=
new
SimpleEmail();
2
email.setHostName(
"
mail.4ya.cn
"
);
3
email.setAuthentication(
"
<username>
"
,
"
<password>
"
)
4
email.addTo(
"
martin.xus@gmail.com
"
,
"
martin
"
);
5
email.setFrom(
"
martin@4ya.cn
"
,
"
martin
"
);
6
email.setSubject(
"
测试主题
"
);
7
email.setMsg(
"
这里是邮件内容
"
);
8
email.send();
就如代码里字面上的意思一样简单:
1:创建以SimpleEmail对象
2:设定发送信件的smtp服务器,如果没有设定,会寻找系统变量中mail.host值。
3:设定smtp的用户和密码
4:收件人
5:发件人
6:主题
7:内容
8:发送
二:发送带附件的邮件
我们可以发送本机的附件,当然我们也可以发送非本机的附件,如果发送的是一个存在网络上的附件的url,则邮件发送的时候会自动下载,添加到附件中。
1:)发送本地附件:
1
EmailAttachment attachment
=
new
EmailAttachment();
2
attachment.setPath(
"
test/test.rar
"
);
3
attachment.setDisposition(EmailAttachment.ATTACHMENT);
4
attachment.setDescription(
"
python resource
"
);
5
attachment.setName(
"
resource
"
);
2:)发送不存在本地的附件
1
EmailAttachment attachment
=
new
EmailAttachment();
2
attachment.setURL(
new
URL(
"
http://www.smilinglibrary.org/sldoc/pics/index03.jpg
"
));
3
attachment.setDisposition(EmailAttachment.ATTACHMENT);
4
attachment.setDescription(
"
微笑图书馆
"
);
5
attachment.setName(
"
微笑图书馆
"
);
next,添加附件到我们的邮件中
1
MultiPartEmail email
=
new
MultiPartEmail();
2
email.setHostName(
"
mail.4ya.cn
"
);
3 email.setAuthentication("
<username>
"
,
"
<password>
"
)
4
email.addTo(
"
martin.xus@gmail.com
"
,
"
martin
"
);
5
email.setFrom(
"
martin@4ya.cn
"
,
"
martin
"
);
6
email.setSubject(
"
邮件主题
"
);
7
email.setMsg(
"
邮件内容
"
);
8
//
添加附件
9
email.attach(attachment);
10
11
//
发送邮件
12
email.send();
如果需要发送多个附件,只需创建多个EmailAttachement,即可
1
email.attach(attachment1)
2
email.attach(attachment2)
三:发送html格式的邮件
通过HtmlEmail我们可以发送Html格式的邮件:
1
java.lang.Object
2
org.apache.commons.mail.Email
3
org.apache.commons.mail.MultiPartEmail
4
org.apache.commons.mail.HtmlEmail
5
如下:
1
//
HtmlEmail!
2
HtmlEmail email
=
new
HtmlEmail();
3
email.setHostName(
"
mail.4ya.cn
"
);
3 email.setAuthentication("
<username>
"
,
"
<password>
"
)
5
email.addTo("martin@4ya.cn
"
martin
"
);
6
email.setFrom("martin.xus@gmail.com
"
martin
"
);
7
email.setSubject(
"主题:该邮件包括html格式内容
"
);
8
//
embed the image and get the content id
9
//
注意这里:embed 将帮助我们创建标签如:cid:xxx url
10
URL url
=
new
URL(
"
http://www.apache.org/images/asf_logo_wide.gif
"
);
11
String cid
=
email.embed(url,
"
Apache logo
"
);
12
13
/**
14
set the html message
15
我们看到HtmlEmail extends Email的,它依然有setMsg(),但是这里发送的邮件包括了插入在邮件内容中的图片,所以不能在使用了setMsg(),而要以setHtmlMsg 或setTextMsg代码
16
*
*/
17
email.setHtmlMsg(
"
<html>The apache logo - <img src=\
"
cid:
"
+cid+
"
\
"
></html>
"
);
18
19
//
set the alternative message
20
email.setTextMsg(
"
Your email client does not support HTML messages
"
);
21
[iocblog.net 来源]
22
//
set mail
23
email.send();
24
四:最后一步
如果需要实现更复杂authenticator 你可以extends javax.mail.Authenticator
,实现你自己的东西,然后调用Email.setAuthenticator(javax.mail.Authenticator newAuthenticator)即可
这一点jakarta也做了,给我们提供了一个defaultAuthenticator
1
java.lang.Object
2
javax.mail.Authenticator
3
org.apache.commons.mail.DefaultAuthenticator
覆盖掉该方法,实现你自己的东东 o_o
1
protected
javax.mail.PasswordAuthentication getPasswordAuthentication()
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