Java发邮件简单实现

                                            Java发邮件简单实现

        给出一个Java发送邮件的简单实现。

        

1、	接口
public interface MailSendServDu {

    public void sendEmail(String addressee, String subject, String content);
}

2、	实现
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Date;
import java.util.Map;
import java.util.Properties;


/**
 * 邮件发送接口
 * @param
 * @author Wu Jianguo
 * @version V1.0
 * @Description:
 * @modificationHistory=================重大变更调整记录
 * @modify by user: Wu Jianguo
 * @modify by reason:{方法名}:{原因}
 * @return
 * @throws
 */
public class MailSendServDuImpl implements MailSendServDu{

    private Logger logger = Logger.getLogger(this.getClass());

    // 初始化连接邮件服务器的会话信息
    private Properties properties = null;
    // 创建Session实例对象
    private Session session = null;

    String fromAddress = null;
    String fromName = null;
    String charset = null;

    public MailSendServDuImpl() {
        logger.info("发送邮件相关配置初始化.......");

        Map<String,String> map = PropertiesUtils.getPropertiesValues("/properties/mail.properties");
        String turnon = map.get("mail.turnon");
        if (Boolean.parseBoolean(turnon)) {
            String protocol = map.get("mail.protocol");
            fromAddress = map.get("mail.fromAddress");
            fromName = map.get("mail.fromName");
            String host = map.get("mail.host");
            String port = map.get("mail.port");
            String auth = map.get("mail.auth");
            String username = map.get("mail.username");
            String password = map.get("mail.password");
            String debug = map.get("mail.debug");
            charset = map.get("mail.charset");

            properties = new Properties();
            properties.setProperty("mail.transport.protocol", protocol);
            properties.setProperty("mail.smtp.host", host);
            properties.setProperty("mail.smtp.port", port);
            properties.setProperty("mail.smtp.auth", auth);
            properties.setProperty("mail.debug", debug);

            if (Boolean.parseBoolean(auth)) {
                session = Session.getDefaultInstance(properties, new HatomAuthenticator(username, password));
            } else {
                session = Session.getDefaultInstance(properties, new HatomAuthenticator());
            }
        }
    }

    @Override
    public void sendEmail(String addressee, String subject, String content) {
        logger.info("发送邮件");

        MailSendServDuImpl ps = new MailSendServDuImpl();

        try {
            if (null != properties) {
                // 创建MimeMessage实例对象
                MimeMessage message = new MimeMessage(session);
                // 设置发件人
                message.setFrom(new InternetAddress(fromAddress, fromName));
                // 设置邮件主题
                message.setSubject(subject);
                // 设置收件人
                message.setRecipient(Message.RecipientType.TO, new InternetAddress(addressee));
                // 设置发送时间
                message.setSentDate(new Date());
                // 设置html内容为邮件正文，指定MIME类型为text/html类型，并指定字符编码
                message.setContent(content, "text/html;charset=" + charset);
                // 保存并生成最终的邮件内容
                message.saveChanges();
                // 发送邮件
                Transport.send(message);
            }
        } catch (Exception e) {
            System.err.println(e.getMessage());
            logger.info("发送邮件异常");
        }

    }

    /**
     * 向邮件服务器提交认证信息
     */
    class HatomAuthenticator extends Authenticator {
        private String username;
        private String password;

        public HatomAuthenticator() {
            super();
        }

        public HatomAuthenticator(String username, String password) {
            super();
            this.username = username;
            this.password = password;
        }

        @Override
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(username, password);
        }
    }
}

3、	配置文件
# 是否打开邮件发送
mail.turnon=true
# 邮件发送协议
mail.protocol=smtp
# 发信邮箱
[email protected]
# 发信人
mail.fromName=XX
# smtp端口号
mail.host=smtp.163.com
mail.port=25
# 是否需要验证
mail.auth=true
# smtp账号
[email protected]
# smtp密码
mail.password=
# 调试级别,0 关闭,1 一般,2较高
mail.debug=0
# 编码
mail.charset=UTF-8