Java发送邮件Util工具类_java 发送邮件util-优快云博客

本文详细介绍如何在Java中配置并使用阿里云SMTP服务发送带有HTML内容和附件的电子邮件，包括必要的依赖导入、SSL连接设置及邮件内容的构建。

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导包

<!--邮箱-->
<dependency>
    <groupId>com.sun.mail</groupId>
    <artifactId>javax.mail</artifactId>
    <version>1.6.2</version>
</dependency>
<dependency>
    <groupId>javax.activation</groupId>
    <artifactId>activation</artifactId>
    <version>1.1.1</version>
</dependency>

package com.cloudinward.bhApply.config

import com.sun.net.ssl.internal.ssl.Provider
import java.security.Security
import javax.activation.DataHandler
import javax.activation.FileDataSource
import javax.mail.*
import javax.mail.internet.*


object EmailUtils {



    private const val ALIDM_SMTP_HOST = "smtp.qiye.aliyun.com"

    private const val ALIDM_SMTP_PORT = "25" // 或80


    /**
     * @param sendAddress 发件人地址
     * @param sendPassword 发件人密码
     * @param host 协议
     * @param port端口
     * @param subject 标题
     * @param content 内容
     * @param filePath 附件地址
     * @param CC 抄送人
     * @throws Exception
     * @throws AddressException
     */
    fun sendMail(
        subject: String?,
        content: String?,
        internetAddress: String?,
        filePath: String?=null
    ) {
        //设置SSL连接、邮件环境
        Security.addProvider(Provider())
        val SSL_FACTORY = "javax.net.ssl.SSLSocketFactory"
        val props = System.getProperties()
        props.setProperty("mail.smtp.host", ALIDM_SMTP_HOST)
        props.setProperty("mail.smtp.socketFactory.class", SSL_FACTORY)
        props.setProperty("mail.smtp.socketFactory.fallback", "false")
        props.setProperty("mail.smtp.port", ALIDM_SMTP_PORT) //设置端口
        props.setProperty("mail.debug", "true") //启用调试
        props.setProperty("mail.smtp.socketFactory.port", "465")
        props.setProperty("mail.smtp.auth", "true")
        //建立邮件会话
        val session = Session.getDefaultInstance(props, object : Authenticator() {
            //身份认证
            override fun getPasswordAuthentication(): PasswordAuthentication? {
                return PasswordAuthentication("ipaihotex@paiho.cn", "2Y5NpGBBy9iE1") //发件人账号、密码
            }
        })
        //建立邮件对象
        val message = MimeMessage(session)
        //设置邮件的发件人、收件人、主题
        //附带发件人名字
        //  message.setFrom(new InternetAddress("from_mail@qq.com", "optional-personal"));
        message.setFrom(InternetAddress("ipaihotex@paiho.cn")) //发件人账号
        message.setRecipients(Message.RecipientType.TO, internetAddress) //收件人账号

        //标题
        message.subject = subject //邮件标题

        //内容
        val multipart: Multipart = MimeMultipart()
        val contentPart: BodyPart = MimeBodyPart()
        contentPart.setContent(content, "text/html;charset=utf-8") //邮件内容
        multipart.addBodyPart(contentPart)

        //附件部分
        if (!filePath.isNullOrBlank()) {
            val attachPart: BodyPart = MimeBodyPart()
            val fileDataSource = FileDataSource(filePath) //附件地址 D:/题库上传模板v1.xlsx
            attachPart.dataHandler = DataHandler(fileDataSource)
            attachPart.fileName = MimeUtility.encodeText(fileDataSource.getName())
            multipart.addBodyPart(attachPart)
        }
        message.setContent(multipart)

        //抄送地址
//        if (!CC.isNullOrBlank()) {
//            val internetAddressCC: Array<InternetAddress> = InternetAddress().parse(CC)
//            message.setRecipients(Message.RecipientType.CC, internetAddressCC)
//        }

        //发送邮件
        Transport.send(message)
    }


}

fun main() {
    EmailUtils.sendMail(
        "subject test",
        "<H1>AAAwerewrwfdsfdsfA</H1>", "853810169@qq.com"
    )
}