package com.email;

import com.sun.mail.util.MailSSLSocketFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import javax.mail.internet.MimeMessage;
import java.io.File;
import java.security.GeneralSecurityException;
import java.util.List;
import java.util.Map;
import java.util.Properties;

/**
 * 邮件发送工具类
 * 说明：1.这里的邮件服务的接口JavaMailSender采取自动注入的方式，在配置文件中一定需要配置spring.mail.host、spring.
 * mail.port、 spring.mail.username、spring.mail.password，否则无法自动注入而程序报错；
 * 2.在MimeMessageHelper中设置发件人邮箱地址时，一定要与配置文件中的spring.mail.username的邮箱地址一致，否则无法发送。
 * 
 * @author sxw
 * @ClassName com.email.EmailUtils_2
 */
@Component
public class EmailUtils_2 {

	private static final Logger logger = LoggerFactory.getLogger(EmailUtils_2.class);
	@Autowired
	private Environment env;
	@Autowired
	private JavaMailSender mailSender;
	// @Autowired
	// private JavaMailSenderImpl mailSender;
	// 发件人邮箱
	private static String authName;

	// 初始化配置
	@PostConstruct
	public void initParam() {
		authName = env.getProperty("spring.mail.username");
	}

	/**
	 * 发送邮件
	 * 
	 * @param subject
	 *            主题
	 * @param toUsers
	 *            收件人
	 * @param ccUsers
	 *            抄送人
	 * @param content
	 *            邮件内容
	 * @param attachfiles
	 *            附件列表 List<Map<String, String>> key: name && file
	 */
	public boolean sendEmail(String subject, String[] toUsers, String[] ccUsers, String content,
			List<Map<String, String>> attachfiles) {
		boolean flag = true;
		try {
			MimeMessage mailMessage = mailSender.createMimeMessage();
			MimeMessageHelper messageHelper = new MimeMessageHelper(mailMessage, true);
			messageHelper.setTo(toUsers);
			if (ccUsers != null && ccUsers.length > 0) {
				messageHelper.setCc(ccUsers);
			}
			messageHelper.setFrom(authName);
			messageHelper.setSubject(subject);
			messageHelper.setText(content, true);

			if (attachfiles != null && attachfiles.size() > 0) {
				for (Map<String, String> attachfile : attachfiles) {
					String attachfileName = attachfile.get("name");
					File file = new File(attachfile.get("file"));
					messageHelper.addAttachment(attachfileName, file);
				}
			}
			mailSender.send(mailMessage);
		} catch (Exception e) {
			logger.error("发送邮件失败!", e);
			flag = false;
		}
		return flag;
	}

}