com.feilong.net.mail.util.MessageSendUtil Maven / Gradle / Ivy

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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.

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/*
 * Copyright (C) 2008 feilong
 *
 * 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.feilong.net.mail.util;

import javax.activation.CommandMap;
import javax.activation.MailcapCommandMap;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Transport;

import com.feilong.net.mail.exception.MailException;

/**
 * 专门用来发送邮件.
 *
 * @author feilong
 * @since 1.13.2
 */
public class MessageSendUtil{

    /** Don't let anyone instantiate this class. */
    private MessageSendUtil(){
        //AssertionError不是必须的. 但它可以避免不小心在类的内部调用构造器. 保证该类在任何情况下都不会被实例化.
        //see 《Effective Java》 2nd
        throw new AssertionError("No " + getClass().getName() + " instances for you!");
    }

    //---------------------------------------------------------------

    /**
     * 发送.
     *
     * @param message
     *            the message
     * @since 1.10.2
     */
    public static void send(Message message){

        setDefaultCommandMap();

        //---------------------------------------------------------------
        try{
            // 发送邮件
            Transport.send(message);
        }catch (MessagingException e){
            throw new MailException(e);
        }
    }

    //---------------------------------------------------------------

    private static void setDefaultCommandMap(){
        MailcapCommandMap mailcapCommandMap = (MailcapCommandMap) CommandMap.getDefaultCommandMap();
        mailcapCommandMap.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");
        mailcapCommandMap.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");
        mailcapCommandMap.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");
        mailcapCommandMap.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");
        mailcapCommandMap.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");
        CommandMap.setDefaultCommandMap(mailcapCommandMap);
    }
}