知道有它几个class吗?你一定想不到,只有8个!
好了,开始我们的jakarta commons emails 之旅:)
一:Quick Start
通过SimpleEmail发送邮件
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java.lang.Object
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org.apache.commons.mail.Email
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org.apache.commons.mail.SimpleEmail
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SimpleEmail email = new SimpleEmail();
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email.setHostName("mail.4ya.cn");
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email.setAuthentication("<username>","<password>")
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email.addTo("martin.xus@gmail.com", "martin");
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email.setFrom("martin@4ya.cn", "martin");
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email.setSubject("测试主题");
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email.setMsg("这里是邮件内容");
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email.send();
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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:
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EmailAttachment attachment = new EmailAttachment();
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attachment.setPath("test/test.rar");
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attachment.setDisposition(EmailAttachment.ATTACHMENT);
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attachment.setDescription("python resource");
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attachment.setName("resource");
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2:)发送不存在本地的附件
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EmailAttachment attachment = new EmailAttachment();
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attachment.setURL(new URL("/pic/2006/2/25/1340002.jpg"));
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attachment.setDisposition(EmailAttachment.ATTACHMENT);
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attachment.setDescription("微笑图书馆");
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attachment.setName("微笑图书馆");
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next,添加附件到我们的邮件中
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MultiPartEmail email = new MultiPartEmail();
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email.setHostName("mail.4ya.cn");
3 email.setAuthentication("<username>","<password>")
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email.addTo("martin.xus@gmail.com", "martin");
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email.setFrom("martin@4ya.cn", "martin");
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email.setSubject("邮件主题");
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email.setMsg("邮件内容");
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//添加附件
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email.attach(attachment);
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//发送邮件
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email.send();
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3 email.setAuthentication("<username>","<password>")
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如果需要发送多个附件,只需创建多个EmailAttachement,即可
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email.attach(attachment1)
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email.attach(attachment2)
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三:发送html格式的邮件
通过HtmlEmail我们可以发送Html格式的邮件:
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java.lang.Object
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org.apache.commons.mail.Email
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org.apache.commons.mail.MultiPartEmail
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org.apache.commons.mail.HtmlEmail
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如下:
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//HtmlEmail!
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HtmlEmail email = new HtmlEmail();
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email.setHostName("mail.4ya.cn");
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email.addTo("martin@4ya.cn"martin");
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email.setFrom("martin.xus@gmail.com"martin");
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email.setSubject("主题:该邮件包括html格式内容");
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// embed the image and get the content id
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// 注意这里:embed 将帮助我们创建标签如:cid:xxx url
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URL url = new URL("/pic/2006/2/25/1340003.gif");
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String cid = email.embed(url, "Apache logo");
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/** *//**
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set the html message
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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
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**/
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email.setHtmlMsg("<html>The apache logo - <img src=\"cid:"+cid+"\"></html>");
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// set the alternative message
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email.setTextMsg("Your email client does not support HTML messages");
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//set mail
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email.send();
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3 email.setAuthentication("<username>","<password>")
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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
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java.lang.Object
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javax.mail.Authenticator
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org.apache.commons.mail.DefaultAuthenticator
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覆盖掉该方法,实现你自己的东东 o_o
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protected javax.mail.PasswordAuthentication getPasswordAuthentication()
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五:any more?
当然有了 o_o 以后再写.