java发送qq邮件进行验证

现在我们写的好多项目中都需要验证，短信验证，邮箱验证，如何通过java发送邮件进行验证那？

1.首先下载email的jar包

2.确定哪个邮箱发送邮件，进去找到设置--》账户--》POP3/SMTP服务 (如何使用 Foxmail 等软件收发邮件？)把他开启 并把登陆码保存下来

3.写代码

package com;

import java.util.Date;
import java.util.Properties;

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;

public class TestEmail {

    public static final String HOST = "smtp.qq.com";
    public static final String PROTOCOL = "smtp";  
    public static final String PORT = "587";
    public static final String FROM = "*****@qq.com";//要发送邮件的邮箱
    /**
     * 获取Session
     * @return
     */
    private static Session getSession() {
        Properties props = new Properties();
        props.setProperty("mail.transport.protocol" , PROTOCOL);//设置协议
        props.setProperty("mail.smtp.host", HOST);//设置服务器地址
        props.setProperty("mail.smtp.port", PORT);//设置端口
        props.setProperty("mail.smtp.auth" , "true");//权限
        Session session = Session.getInstance(props);
        return session;
    }
    /**
     *
     * @param email 收件人地址
     * @param content 内容
     */
    public void sendEmail(String email,String content){
         Session session = getSession();
            try {
                System.out.println("--send--"+content);
                // Instantiate a message
                Message msg = new MimeMessage(session);

                //Set message attributes
                msg.setFrom(new InternetAddress(FROM));
                InternetAddress[] address = {new InternetAddress(email)};
                msg.setRecipients(Message.RecipientType.TO, address);
                msg.setSubject("账号激活邮件");//主体
                msg.setSentDate(new Date());//日期
                msg.setText(content);//内容

                //Send the message
                Transport trans = session.getTransport();
                trans.connect(FROM, "****");//登陆码这是开启服务时那个登陆吗
                trans.sendMessage(msg,msg.getAllRecipients());
            }
            catch (MessagingException mex) {
                mex.printStackTrace();
            }
    }
}

4.测试类

package com;

public class Main {

    public static void main(String args[]){
        TestEmail testEmail=new TestEmail();
        testEmail.sendEmail("**@qq.com", "2333");//发送到那个邮箱，发送的内容
    }
}