使用Java程序发送一封QQ邮件-优快云博客

本文链接：https://blog.youkuaiyun.com/ApolloNing/article/details/110927149

本文介绍如何使用Java通过SMTP协议发送电子邮件，包括配置邮件服务器、编写发送邮件的Java代码，并实现批量发送功能。

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首先，添加POM依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>fun.gosuncn</groupId>
    <artifactId>JavaEmailSend</artifactId>
    <version>1.0</version>

    <dependencies>
        <dependency>
            <groupId>javax.mail</groupId>
            <artifactId>mail</artifactId>
            <version>1.4.7</version>
        </dependency>
    </dependencies>

</project>

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Date;
import java.util.Properties;

public class SendEmail {

    private static final Properties properties = new Properties();

    private static final Session session = Session.getInstance(properties);

    static {
        properties.setProperty("mail.smtp.host", "smtp.qq.com");
        properties.setProperty("mail.transport.protocol", "smtp");
    }

    public static void main(String[] args) throws Exception {
        Transport transport = session.getTransport();
        transport.connect("zhang@qq.com", "1234-5678-9012-3456");//QQ邮箱-生成(16位)授权码
        for (int i = 0; i < 5; i++) {
            transport.sendMessage(newMessage(), new InternetAddress[]{
                    new InternetAddress("1096@qq.com"),
                    new InternetAddress("7974@qq.com"),
                    new InternetAddress("zhao@163.com"),
            });
        }
        System.out.println("OK");
    }

    public static Message newMessage() throws MessagingException {
        MimeMessage message = new MimeMessage(session);
        message.setFrom(new InternetAddress("zhang.pn@qq.com"));
        message.setSubject("邮件标题");
        message.setText("这是一封真实的邮件。 - " + new Date());
        return message;
    }
}