Java 邮件发送

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

<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-email</artifactId>
<version>1.4</version>
</dependency>

Mail

/*
 * Copyright 2016 mljr.com All right reserved. This software is the
 * confidential and proprietary information of mljr.com ("Confidential
 * Information"). You shall not disclose such Confidential Information and shall
 * use it only in accordance with the terms of the license agreement you entered
 * into with mljr.com .
 */
package com.mljr.car.league.web.email;
/**
 * @Description
 * @author 田林(lin.tian@mljr.com)
 * @date 2016年12月30日 上午11:27:21
 */
public class Mail {

     /**
     * 序列号
     */
    private static final long serialVersionUID = -3562218214168975242L;
    /**
     * 邮件编码s
     */
    public static final String ENCODEING = "UTF-8";
    /**
     * 服务器地址
     */
    private String host;
    /**
     * 服务器端口号
     */
    private String portNumber;
    /**
     * 发件人的邮箱
     */
    private String sender;
    /**
     * 收件人的邮箱
     */
    private String receiver;
    /**
     * 发件人昵称
     */
    private String name;
    /**
     * 账号
     */
    private String username;
    /**
     * 密码
     */
    private String password;
    /**
     * 主题
     */
    private String subject;
    /**
     * 信息(支持HTML)
     */
    private String message;   

    public String getHost() {
        return host;
    }    

    public void setHost(String host) {
        this.host = host;
    }    

    public String getSender() {
        return sender;
    }    

    public String getPortNumber() {
        return portNumber;
    }  

    public void setPortNumber(String portNumber) {
        this.portNumber = portNumber;
    }  

    public void setSender(String sender) {
        this.sender = sender;
    }    

    public String getReceiver() {
        return receiver;
    }    

    public void setReceiver(String receiver) {
        this.receiver = receiver;
    }    

    public String getName() {
        return name;
    }    

    public void setName(String name) {
        this.name = name;
    }    

    public String getUsername() {
        return username;
    }    

    public void setUsername(String username) {
        this.username = username;
    }    

    public String getPassword() {
        return password;
    }    

    public void setPassword(String password) {
        this.password = password;
    }    

    public String getSubject() {
        return subject;
    }    

    public void setSubject(String subject) {
        this.subject = subject;
    }    

    public String getMessage() {
        return message;
    }    

    public void setMessage(String message) {
        this.message = message;
    }    

}

MailUtil

/*
 * Copyright 2016 mljr.com All right reserved. This software is the
 * confidential and proprietary information of mljr.com ("Confidential
 * Information"). You shall not disclose such Confidential Information and shall
 * use it only in accordance with the terms of the license agreement you entered
 * into with mljr.com .
 */
package com.mljr.car.league.web.email;

import java.util.Date;

import org.apache.commons.mail.EmailException;
import org.apache.commons.mail.HtmlEmail;

import com.mljr.car.league.erp.api.dto.BusinessOpportunityDTO;
//import org.apache.log4j.Logger;  

/**
 * @Description
 * @author 田林(lin.tian@mljr.com)
 * @date 2016年12月30日 上午11:27:56
 */
public class MailUtil {

    public static boolean send(Mail mail) {
        //发送email对象
        HtmlEmail email = new HtmlEmail();
        try {
            //这里是SMTP发送服务器的名字
            email.setHostName(mail.getHost());
            //端口号不为空时,用户自定义的端口号为SMTP发送服务器端口号
            if (!"".equals(mail.getPortNumber())) {
                email.setSSLOnConnect(true);
                email.setSslSmtpPort(mail.getPortNumber());
            }
            //字符编码集的设置
            email.setCharset(Mail.ENCODEING);
            //收件人的邮箱
            email.addTo(mail.getReceiver());
            //发送人的邮箱
            email.setFrom(mail.getSender(), mail.getName());
            // 如果需要认证信息的话，设置认证：用户名-密码。分别为发件人在邮件服务器上的注册名称和密码
            email.setAuthentication(mail.getUsername(), mail.getPassword());
            // 要发送的邮件主题
            email.setSubject(mail.getSubject());
            // 要发送的信息，由于使用了HtmlEmail，可以在邮件内容中使用HTML标签
            email.setMsg(mail.getMessage());
            // 发送
            email.send();
            return true;
        } catch (EmailException e) {
            e.printStackTrace();
            return false;
        }
    }
}

Test

/*
 * Copyright 2016 mljr.com All right reserved. This software is the
 * confidential and proprietary information of mljr.com ("Confidential
 * Information"). You shall not disclose such Confidential Information and shall
 * use it only in accordance with the terms of the license agreement you entered
 * into with mljr.com .
 */
package com.mljr.car.league.web.email;
/**
 * @Description
 * @author 田林(lin.tian@mljr.com)
 * @date 2016年12月30日 上午11:27:02
 */
public class Test {

    public static void main(String[] args) {

         Mail mail = new Mail();
         mail.setHost("smtp.exmail.qq.com");           //设置邮件服务器,如果不用QQ邮箱的,自己找找看相关的
         mail.setPortNumber("465");             //设置邮件服务器端口号,默认25
         mail.setSender("***@mljr.com");             //发送人
         mail.setName("***");                    //发送人昵称
         mail.setReceiver("****@qq.com");           //接收人
         mail.setUsername("****@mljr.com");           //登录账号,一般都是和邮箱名一样
         mail.setPassword("****");  //QQ邮箱登录第三方客户端时,密码框请输入“授权码”进行验证。其他的密码具体查看邮件服务器的说明
         mail.setSubject("新加盟商");
         mail.setMessage("<h1>内容</h1>");
         if (new MailUtil().send(mail)) {
             System.out.println("发送成功");
        } else {
             System.out.println("发送失败");
        }   

    }

}

参考：http://www.jianshu.com/p/5ba3bde60f21

http://jingyan.baidu.com/article/fedf0737af2b4035ac8977ea.html