com.baifendian.swordfish.common.mail.MailSendUtil.java Source code

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Here is the source code for com.baifendian.swordfish.common.mail.MailSendUtil.java

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/*
 * Copyright (C) 2017 Baifendian Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *          http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.baifendian.swordfish.common.mail;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collection;
import java.util.Properties;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.mail.HtmlEmail;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.ResourceUtils;

public class MailSendUtil {
    private static Logger LOGGER = LoggerFactory.getLogger(MailSendUtil.class.getName());

    private static String mailProtocol;

    private static String mailServerHost;

    private static Integer mailServerPort;

    private static String mailSender;

    private static String mailPasswd;

    static {
        try {
            File dataSourceFile = ResourceUtils.getFile("classpath:common/mail.properties");
            InputStream is = new FileInputStream(dataSourceFile);

            Properties properties = new Properties();
            properties.load(is);

            mailProtocol = properties.getProperty("mail.protocol");
            mailServerHost = properties.getProperty("mail.server.host");
            mailServerPort = Integer.parseInt(properties.getProperty("mail.server.port"));
            mailSender = properties.getProperty("mail.sender");
            mailPasswd = properties.getProperty("mail.passwd");
        } catch (IOException e) {
            LOGGER.error(e.getMessage(), e);
        }
    }

    /**
     * ??
     *
     * @param receivers
     * @param title
     * @param content
     * @return
     */
    public static boolean sendMails(Collection<String> receivers, String title, String content) {
        if (receivers == null) {
            LOGGER.error("Mail receivers is null.");
            return false;
        }

        receivers.removeIf((from) -> (StringUtils.isEmpty(from)));

        if (receivers.isEmpty()) {
            LOGGER.error("Mail receivers is empty.");
            return false;
        }

        // ?? email
        HtmlEmail email = new HtmlEmail();

        try {
            //  SMTP ?????, 163 "smtp.163.com"
            email.setHostName(mailServerHost);

            email.setSmtpPort(mailServerPort);

            // ?
            email.setCharset("UTF-8");
            // 
            for (String receiver : receivers) {
                email.addTo(receiver);
            }
            // ??
            email.setFrom(mailSender, mailSender);
            // ???????-??????
            email.setAuthentication(mailSender, mailPasswd);
            // ???
            email.setSubject(title);
            // ???? HtmlEmail? HTML 
            email.setMsg(content);
            // ??
            email.send();

            return true;
        } catch (Throwable e) {
            LOGGER.error("Send email to {} failed", StringUtils.join(",", receivers), e);
        }

        return false;
    }
}