Java发送邮件

JAVA邮件发送的大致过程是这样的的：

1、构建一个继承自javax.mail.Authenticator的具体类，并重写里面的getPasswordAuthentication()方法。此类是用作登录校验的，以确保你对该邮箱有发送邮件的权利。

2、构建一个properties文件，该文件中存放SMTP服务器地址等参数。

3、通过构建的properties文件和javax.mail.Authenticator具体类来创建一个javax.mail.Session。Session的创建，就相当于登录邮箱一样。剩下的自然就是新建邮件。

4、构建邮件内容，一般是javax.mail.internet.MimeMessage对象，并指定发送人，收信人，主题，内容等等。

5、使用javax.mail.Transport工具类发送邮件。

要实现邮件发送功能需要导入包：mail.jar

/*

* Generated by MyEclipse Struts

* Template path: templates/java/JavaClass.vtl

*/

package org.demo.action

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.servlet.http.HttpServletRequest

import javax.servlet.http.HttpServletResponse

import org.apache.struts.action.Action

import org.apache.struts.action.ActionForm

import org.apache.struts.action.ActionForward

import org.apache.struts.action.ActionMapping

import org.demo.form.DemoForm

public class DemoAction extends Action {

private static final String CONTENT_TYPE = "test/htmlcharset=GB2312"

public ActionForward execute(ActionMapping mapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response) {

DemoForm demoForm = (DemoForm) form

System.out.println("标题是" + demoForm.getBiaoti())

System.out.println("内容是" + demoForm.getNeirong())

try {

response.setContentType(CONTENT_TYPE)

String smtphost = "smtp.nj.headware.cn"// 发送邮件服务器

String user = "q0000015369"// 邮件服务器登录用户名

String password = "Queshuwen26"// 邮件服务器登录密码

String from = "q0000015369@nj.headware.cn"//

String to = "c0000016205@nj.headware.cn"// 收件人邮件地址

String subject = demoForm.getBiaoti()// 邮件标题

String body = demoForm.getNeirong()// 邮件内容

Properties props = new Properties()

props.put("mail.smtp.host", smtphost)

props.put("mail.smtp.auth", "true")

Session ssn = Session.getInstance(props, null)

MimeMessage message = new MimeMessage(ssn)

InternetAddress fromAddress = new InternetAddress(from)

message.setFrom(fromAddress)

InternetAddress toAddress = new InternetAddress(to)

message.addRecipient(Message.RecipientType.TO, toAddress)

message.setSubject(subject)

message.setText(body)

Transport transport = ssn.getTransport("smtp")

transport.connect(smtphost, user, password)

transport.sendMessage(message, message

.getRecipients(Message.RecipientType.TO))

// transport.send(message)

transport.close()

return mapping.findForward("succ")

} catch (Exception e) {

e.printStackTrace()

return mapping.findForward("fail")

}

}

}

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