struts2集成javamail發(fā)郵件示例詳解

package com.nerve.cloudoffice.common.util;

import java.util.List;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;

public class EMailSender {
     /**
     * 向用戶發(fā)送郵件
     */
    private static final long serialVersionUID = 1L;

    private MimeMessage mimeMsg; // MIME郵件對(duì)象

    private Session session; // 郵件會(huì)話對(duì)象

    private Properties props; // 系統(tǒng)屬性

    private boolean needAuth = false; // smtp是否需要認(rèn)證

    private String username = ""; // smtp認(rèn)證用戶名和密碼

    private String password = "";

    private Multipart mp; // Multipart對(duì)象,郵件內(nèi)容,標(biāo)題,附件等內(nèi)容均添加到其中后再生成

    private String log;

    public EMailSender() {

    }

    public EMailSender(String smtp) {
        setSmtpHost(smtp);
        createMimeMessage();
    }

    public void setSmtpHost(String hostName) {
        System.out.println("設(shè)置系統(tǒng)屬性：mail.smtp.host = " + hostName);
        if (props == null)
            props = System.getProperties(); // 獲得系統(tǒng)屬性對(duì)象
        props.put("mail.smtp.host", hostName); // 設(shè)置SMTP主機(jī)
        props.put("mail.smtp.localhost", "localHostAdress");
    }

    public boolean createMimeMessage() {
        try {
            System.out.println("準(zhǔn)備獲取郵件會(huì)話對(duì)象！");
            session = Session.getDefaultInstance(props, null); // 獲得郵件會(huì)話對(duì)象
        } catch (Exception e) {
            log = "獲取郵件會(huì)話對(duì)象時(shí)發(fā)生錯(cuò)誤！" + e.toString();
            System.err.println(log);
            return false;
        }
        try {
            mimeMsg = new MimeMessage(session); // 創(chuàng)建MIME郵件對(duì)象
            mp = new MimeMultipart(); // mp 一個(gè)multipart對(duì)象
            // Multipart is a container that holds multiple body parts.
            return true;
        } catch (Exception e) {
            log = "創(chuàng)建MIME郵件對(duì)象失敗！" + e;
            System.err.println(log);
            return false;
        }
    }

    public void setNeedAuth(boolean need) {
        System.out.println("設(shè)置smtp身份認(rèn)證：mail.smtp.auth = " + need);
        if (props == null)
            props = System.getProperties();
        if (need) {
            props.put("mail.smtp.auth", "true");
        } else {
            props.put("mail.smtp.auth", "false");
        }
    }

    public void setNamePass(String name, String pass) {
        System.out.println("程序得到用戶名與密碼");
        username = name;
        password = pass;
    }

    public boolean setSubject(String mailSubject) {
        System.out.println("設(shè)置郵件主題！");
        try {
            mimeMsg.setSubject(MimeUtility.encodeText(mailSubject,"utf-8","B"));
            return true;
        } catch (Exception e) {
            log = "設(shè)置郵件主題發(fā)生錯(cuò)誤！"+e;
            System.err.println(log);
            return false;
        }
    }

    public boolean setBody(String mailBody) {
        try {
            System.out.println("設(shè)置郵件體格式");
            BodyPart bp = new MimeBodyPart();
            // 轉(zhuǎn)換成中文格式
            bp.setContent(
                    "meta http-equiv=Content-Type content=text/html; charset=utf-8>"
                            + mailBody, "text/html;charset=utf-8");
            mp.addBodyPart(bp);
            return true;
        } catch (Exception e) {
            log = "設(shè)置郵件正文時(shí)發(fā)生錯(cuò)誤！" + e;
            System.err.println(log);
            return false;
        }
    }

    public boolean setFiles(ListString> files){
        try{
            for(String s:files){
                MimeBodyPart mbp=new MimeBodyPart(); 
                FileDataSource fds=new FileDataSource(s); //得到數(shù)據(jù)源 
                mbp.setDataHandler(new DataHandler(fds)); //得到附件本身并至入BodyPart 
                mbp.setFileName(fds.getName());  //得到文件名同樣至入BodyPart 
                mp.addBodyPart(mbp);
            }
            return true;
        }catch(Exception e){
            log = "增加附件時(shí)出錯(cuò)："+e;
            e.printStackTrace();
            return false;
        }
    }

    public boolean addFile(String path, String name){
        try{
            MimeBodyPart mbp=new MimeBodyPart(); 
            FileDataSource fds=new FileDataSource(path); //得到數(shù)據(jù)源 
            mbp.setDataHandler(new DataHandler(fds)); //得到附件本身并至入BodyPart 
            mbp.setFileName(MimeUtility.encodeText(name,"utf-8","B"));
            mp.addBodyPart(mbp);
            return true;
        }catch(Exception e){
            log = "增加附件時(shí)出錯(cuò)："+e;
            e.printStackTrace();
            return false;
        }
    }

    public boolean setFrom(String from) {
        System.out.println("設(shè)置發(fā)信人！");
        try {
            mimeMsg.setFrom(new InternetAddress(from)); // 設(shè)置發(fā)信人
            return true;
        } catch (Exception e) {
            log = "設(shè)置發(fā)信人出錯(cuò):"+e;
            return false;
        }
    }

    public boolean setTo(String to) {
        System.out.println("設(shè)置收信人");
        if (to == null)
            return false;
        try {
            mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress
                    .parse(to));
            return true;
        } catch (Exception e) {
            return false;
        }
    }

    public boolean setCopyTo(String copyto) {
        if (copyto == null)
            return false;
        try {
            mimeMsg.setRecipients(Message.RecipientType.CC,
                    (Address[]) InternetAddress.parse(copyto));
            return true;
        } catch (Exception e) {
            return false;
        }
    }

    public boolean sendout() {
        try {
            mimeMsg.setContent(mp);
            mimeMsg.saveChanges();
            System.out.println("正在發(fā)送郵件....");
            Session mailSession = Session.getInstance(props, null);
            Transport transport = mailSession.getTransport("smtp");
            transport.connect((String) props.get("mail.smtp.host"), username,
                    password);
            transport.sendMessage(mimeMsg, mimeMsg
                    .getRecipients(Message.RecipientType.TO));
            // transport.send(mimeMsg);
            System.out.println("發(fā)送郵件成功！");
            transport.close();
            return true;
        } catch (Exception e) {
            log = "郵件發(fā)送失敗！" + e;
            System.err.println(log);
            return false;
        }
    }

    public String getLog(){
        return log;
    }
}

props.put("mail.smtp.localhost", "localHostAdress");

mbp.setFileName(MimeUtility.encodeText(name,"utf-8","B"));