• 利用springframework+javax.mail发邮件（普通邮件、带附件邮件、HTML格式邮件）

             Spring提供了发送电子邮件的支持，可以发送普通邮件、带附件邮件、HTML格式邮件，甚至还可以使用Velocity模板定制化邮件内容。

    一、引入相关的库

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    <!-- spring核心库 -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
                <version>4.2.5.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-beans</artifactId>
                <version>4.2.5.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>4.2.5.RELEASE</version>
            </dependency>
     
            <!--发送Email-->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>4.2.5.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>javax.mail</groupId>
                <artifactId>mail</artifactId>
                <version>1.4.7</version>
            </dependency>


    二、发送邮件代码

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    import org.springframework.core.io.ClassPathResource;
    import org.springframework.mail.SimpleMailMessage;
    import org.springframework.mail.javamail.JavaMailSenderImpl;
    import org.springframework.mail.javamail.MimeMessageHelper;
     
    import javax.mail.MessagingException;
    import javax.mail.internet.MimeMessage;
     
    public class SpringEmail {
     
        private JavaMailSenderImpl mailSender=null;
        //邮件用户名
        private String userName="";
        //发送邮箱名称
        private String from="@163.com";
        //接收邮箱名称
        private String to="@qq.com";
     
        public SpringEmail()
        {
            this.mailSender = new JavaMailSenderImpl();
            //邮箱smtp服务器
            mailSender.setHost("smtp.163.com");
            mailSender.setPort(25);
            mailSender.setUsername(this.userName);
            //邮箱密码
            mailSender.setPassword("xxxx");
        }
     
        //普通文本Email
        public void sendPureMail() {
            SimpleMailMessage message = new SimpleMailMessage();
     
            String spitterName = "这里是标题（纯文本）";
            message.setFrom(this.from);
            message.setTo(this.to);
            message.setSubject("这里是标题!");
            message.setText("这里是内容");
            this.mailSender.send(message);
        }
     
        //带多个附件的Email
        public void sendMailWithAttachment() throws MessagingException {
     
            MimeMessage message = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
     
            helper.setFrom(this.from);
            helper.setTo(this.to);
            helper.setSubject("这里是标题(带多个附件）!");
            helper.setText("这里是内容(带附件）");
     
            //添加两个附件（附件位置位于java-->resources目录)，可根据需要添加或修改
            ClassPathResource image = new ClassPathResource("/coupon.jpg");
            ClassPathResource PDF = new ClassPathResource("/Rop Reference.pdf");
            helper.addAttachment("Coupon.png", image);
            helper.addAttachment("Rop Reference.pdf", PDF);
     
            this.mailSender.send(message);
        }
     
        //带附件的HTML格式的Email
        public void sendMailHtmlWithAttachment() throws MessagingException {
     
            MimeMessage message = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(message, true,"GBK"); //解决乱码问题
     
            helper.setFrom(this.from);
            helper.setTo(this.to);
            helper.setSubject("这里是标题(Html带附件）!");
            //设置META解决乱码问题
            helper.setText("<html><META http-equiv=Content-Type content='text/html; charset=GBK'><body><img src='cid:Coupon'>" +
                    "<h4>" + "测试乱码" + " says...</h4>" +
                    "<i>" + "测试乱码2" + "</i>" +
                    "</body></html>", true);
     
            //图片嵌入到html文件中
            ClassPathResource couponImage = new ClassPathResource("/coupon.jpg");
            helper.addInline("Coupon", couponImage);
     
            //图片作为附件发送
            ClassPathResource couponImage2 = new ClassPathResource("/coupon.jpg");
            helper.addAttachment("Coupon.png", couponImage2);
     
     
            this.mailSender.send(message);
        }
     
        public static void main(String[] args) throws MessagingException{
            System.out.println("开始发送邮件");
     
            SpringEmail email=new SpringEmail();
            //email.sendPureMail();
            //email.sendMailWithAttachment();
            email.sendMailHtmlWithAttachment();
     
            System.out.println("邮件发送成功");
        }
    }
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  • 原文地址：https://www.cnblogs.com/gossip/p/5887613.html
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