package cn.lbj;

import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMessage.RecipientType;


public class EmailUtils {

	private String emailIP;
	private String username;
	private String authorizationCode;
	private String myEmail;
	private String emailPort;

	// 是否显示日志
	private boolean showDebugInfo;

	/**
	 * @param emailIP
	 *            发件人的SMTP服务器地址，如果是本机，可以使用localhost<br>
	 *            假设使用的是QQ邮箱，IP为smtp.qq.com
	 * @param username
	 *            发送邮箱的登陆用户名<br>
	 *            如：123456@qq.com，username = 123456
	 * @param authorizationCode
	 *            发送邮箱的授权码
	 * @param myEmail
	 *            发送邮箱（自己的）
	 * 
	 * @param emailPort
	 *            发送邮箱的端口， 一般是25
	 */
	public EmailUtils(String emailIP, String username, String authorizationCode, String myEmail, String emailPort) {
		this.emailIP = emailIP;
		this.username = username;
		this.authorizationCode = authorizationCode;
		this.myEmail = myEmail;
		this.emailPort = emailPort;
	}

	/**
	 * @param emailIP
	 *            发件人的SMTP服务器地址，如果是本机，可以使用localhost<br>
	 *            假设使用的是QQ邮箱，IP为smtp.qq.com
	 * @param username
	 *            发送邮箱的登陆用户名<br>
	 *            如：123456@qq.com，username = 123456
	 * @param authorizationCode
	 *            发送邮箱的授权码
	 * @param myEmail
	 *            发送邮箱（自己的）
	 * 
	 * @param emailPort
	 *            发送邮箱的端口， 一般是25
	 * 
	 * @param showDebugInfo
	 *            是否要显示日志，默认不显示，设置true为显示
	 */
	public EmailUtils(String emailIP, String username, String authorizationCode, String myEmail, String emailPort,
			boolean isShowDebugInfo) {
		this.emailIP = emailIP;
		this.username = username;
		this.authorizationCode = authorizationCode;
		this.myEmail = myEmail;
		this.emailPort = emailPort;
		this.showDebugInfo = isShowDebugInfo;
	}

	public void setShowDebugInfo(boolean showDebugInfo) {
		this.showDebugInfo = showDebugInfo;
	}

	public boolean isShowDebugInfo() {
		return showDebugInfo;
	}

	public String getEmailIP() {
		return emailIP;
	}

	public String getUsername() {
		return username;
	}

	public String getAuthorizationCode() {
		return authorizationCode;
	}

	public String getMyEmail() {
		return myEmail;
	}

	public String getEmailPort() {
		return emailPort;
	}

	/**
	 * 发送邮件的方法
	 * 
	 * @param to
	 *            收件人邮箱
	 * @param subject
	 *            标题文本信息
	 * @param emailMsg
	 *            邮件内容信息
	 * @throws AddressException
	 *             收件人邮箱地址错误
	 * @throws MessagingException
	 *             邮件内容错误
	 */
	public void sendMail(String to, String subject, String emailMsg) throws AddressException, MessagingException {

		// 连接邮件服务器的参数配置
		Properties props = new Properties();
		
		// 发送邮件的邮箱需要登陆验证之的才能发送
		props.setProperty("mail.smtp.auth", "true");

		// 设置传输协议
		props.setProperty("mail.transport.protocol", "smtp");

		// 设置发件人的SMTP服务器地址
		props.setProperty("mail.smtp.host", emailIP);

		// 发件人自己的账号
		props.setProperty("mail.user", myEmail);

		// 访问SMTP服务时需要提供的密码
		props.setProperty("mail.password", authorizationCode);
		props.setProperty("mail.smtp.port", emailPort);
		props.setProperty("mail.smtp.starttls.enable", "true");

		// 绑定用户名和密码
		Authenticator auth = new Authenticator() {
			public PasswordAuthentication getPasswordAuthentication() {
				return new PasswordAuthentication(username, authorizationCode);
			}
		};

		// 创建定义整个应用程序所需的环境信息的 Session 对象
		Session session = Session.getInstance(props, auth);

		// 是否要显示日志，默认不显示
		if (showDebugInfo) {
			// 设置调试信息在控制台打印出来
			session.setDebug(true);
		}

		// 创建邮件的实例对象
		Message message = new MimeMessage(session);

		// 设置发件邮箱
		message.setFrom(new InternetAddress(myEmail));

		/*
		 * 设置收件人地址（可以增加多个收件人、抄送、密送） MimeMessage.RecipientType.TO:发送
		 * MimeMessage.RecipientType.CC：抄送 MimeMessage.RecipientType.BCC：密送
		 */
		message.setRecipient(RecipientType.TO, new InternetAddress(to));

		// 设置邮件主题（标题）
		message.setSubject(subject);

		// 设置邮件正文和MIME格式及编码
		message.setContent(emailMsg, "text/html;charset=utf-8");

		// 发送邮件
		Transport.send(message);
	}

	@Override
	public String toString() {
		return "EmailUtils [emailIP=" + emailIP + ", username=" + username + ", authorizationCode=" + authorizationCode
				+ ", myEmail=" + myEmail + ", emailPort=" + emailPort + "]";
	}
}