java springboot发送邮件

java发送邮件

我已经把代码封装好了，只需要修改你的邮箱和邮箱密码(不是QQ邮箱密码)即可调用
这个邮箱随机密码需要进入QQ邮箱里获取

springboot的话可以直接导依赖

<!--java发送邮件-->
        <dependency>
            <groupId>javax.mail</groupId>
            <artifactId>mail</artifactId>
            <version>1.4.7</version>
        </dependency>

不是springboot的话需要下载导入java发送邮件的jar包

---

主体

private String head;
private String body;
private String to;
private String from;
 
public String getTo() {
    return to;
}
 
public void setTo(String to) {
    this.to = to;
}
 
public String getFrom() {
    return from;
}
 
public void setFrom(String from) {
    this.from = from;
}
 
public String getHead() {
    return head;
}
 
public void setHead(String head) {
    this.head = head;
}
 
public String getBody() {
    return body;
}
 
public void setBody(String body) {
    this.body = body;
}
 
public void send(Mail mail) throws GeneralSecurityException {
    // 收件人电子邮箱
    String to = mail.getTo();
 
    // 发件人电子邮箱
    String from = mail.getFrom();
 
    // 指定发送邮件的主机为 smtp.qq.com
    String host = "smtp.qq.com";  //QQ 邮件服务器
 
    // 获取系统属性
    Properties properties = System.getProperties();
 
    // 设置邮件服务器
    properties.setProperty("mail.smtp.host", host);
 
    properties.put("mail.smtp.auth", "true");
    MailSSLSocketFactory sf = new MailSSLSocketFactory();
    sf.setTrustAllHosts(true);
    properties.put("mail.smtp.ssl.enable", "true");
    properties.put("mail.smtp.ssl.socketFactory", sf);
    // 获取默认session对象
    Session session = Session.getDefaultInstance(properties,new Authenticator(){
        @Override
        public PasswordAuthentication getPasswordAuthentication()
        {
            return new PasswordAuthentication("346313208@qq.com", "QQ邮箱的随机密码"); //发件人邮件用户名、密码
        }
    });
 
    try{
        // 创建默认的 MimeMessage 对象
        MimeMessage message = new MimeMessage(session);
 
        // Set From: 头部头字段
        message.setFrom(new InternetAddress(from));
 
        // Set To: 头部头字段
        message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
 
        // Set Subject: 头部头字段
        message.setSubject(mail.getHead());
 
        // 设置消息体
        message.setText(mail.getBody());
 
        // 发送消息
        Transport.send(message);
        System.out.println("成功发送，标题为："+mail.getHead()+"\n内容为\n"+mail.getBody());
    }catch (MessagingException mex) {
        mex.printStackTrace();
    }
}

调用

Mail mail=new Mail();
mail.setTo("收件邮箱");
mail.setFrom("你的QQ邮箱");
mail.setHead("测试java发送邮件");
mail.setBody("测试邮件功能········");
mail.send(mail);