java发送Email，带附件

package com.test;import java.io.File;import java.util.ArrayList;import java.util.Date;import java.util.List;import java.util.Properties;import javax.activation.DataHandler;import javax.activation.FileDataSource;import javax.mail.AuthenticationFailedException;import javax.mail.Authenticator;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.Multipart;import javax.mail.PasswordAuthentication;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;import org.apache.commons.lang.StringUtils;import org.apache.log4j.LogManager;import org.apache.log4j.Logger;/** * 实现邮件发送功能 * @author Administrator * */public class EmailSender {private static final Logger logger = LogManager.getLogger(EmailSender.class);private String host; // 服务器地址private String from; // 发件人private String to; // 收件人 多个收件人以,分隔private String title; // 主题private String content; // 内容private List<File> attachmentlist ; //附件集private String username; // 用户名private String password; // 密码/**发件人员工编号*/private String sendEmployeeId;public String getSendEmployeeId() {return sendEmployeeId;}public void setSendEmployeeId(String sendEmployeeId) {this.sendEmployeeId = sendEmployeeId;}public String getHost() {return host;}public void setHost(String host) {this.host = host;}public String getFrom() {return from;}public void setFrom(String from) {this.from = from;}public String getTo() {return to;}public void setTo(String to) {this.to = to;}public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public String getContent() {return content;}public void setContent(String content) {this.content = content;}public List<File> getAttachmentlist() {return attachmentlist;}public void setAttachmentlist(List<File> attachmentlist) {this.attachmentlist = attachmentlist;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public String getPort() {return port;}public void setPort(String port) {this.port = port;}private String port;public EmailSender(String host, String from, String to, String title,String content, List attachmentlist, String username, String password,String port) {this.host = host;this.from = from;this.to = to;this.title = title;this.content = content;this.attachmentlist = attachmentlist;this.username = username;this.password = password;this.port=port;}public EmailSender(String to, String title,String content, List attachmentlist) {this.to = to;this.title = title;this.content = content;this.attachmentlist = attachmentlist;}/** * 发送邮件 * @return 发送状态信息 index0：状态 0成功 1失败;index1：描述错误信息 */public String[] sendMail(){String[] result=new String[2];Session session=null;Properties props = System.getProperties();props.put("mail.smtp.host", host);props.put("mail.smtp.sendpartial", "true");props.put("mail.smtp.port", port);if(StringUtils.isBlank(username)){//不需要验证用户名密码session = Session.getDefaultInstance(props, null);}else{props.put("mail.smtp.auth", "true");EmailAuthenticator auth = new EmailAuthenticator(username, password);session = Session.getInstance(props, auth); }//设置邮件发送信息try{// 创建邮件MimeMessage message = new MimeMessage(session);// 设置发件人地址message.setFrom(new InternetAddress(from));// 设置收件人地址（多个邮件地址）InternetAddress[] toAddr = InternetAddress.parse(to);message.addRecipients(Message.RecipientType.TO, toAddr);// 设置邮件主题message.setSubject(title);// 设置发送时间message.setSentDate(new Date());// 设置发送内容Multipart multipart = new MimeMultipart();MimeBodyPart contentPart = new MimeBodyPart();contentPart.setText(content);multipart.addBodyPart(contentPart);//设置附件if(attachmentlist!=null && attachmentlist.size()>0){for(int i = 0 ; i < attachmentlist.size();i++){MimeBodyPart attachmentPart = new MimeBodyPart();FileDataSource source = new FileDataSource(attachmentlist.get(i));attachmentPart.setDataHandler(new DataHandler(source));attachmentPart.setFileName(MimeUtility.encodeWord(attachmentlist.get(i).getName(), "gb2312", null));multipart.addBodyPart(attachmentPart);} }message.setContent(multipart);//登录SMTP服务器if (StringUtils.isBlank(username)) {// 不需验证Transport.send(message);} else {// 需要验证Transport transport = session.getTransport("smtp");transport.connect();transport.sendMessage(message, message.getAllRecipients());transport.close(); }result[0]="0";result[1]="发送成功";logger.info("邮件发送成功!发送人："+from);}catch(MessagingException mex){result[0]="1";result[1]="邮件服务器发生错误";if(mex instanceof AuthenticationFailedException){result[1]="用户名或密码错误";}} catch (Exception e) {result[0]="1";result[1]="系统异常";}return result;}public static void main(String[] args){List list=new ArrayList();list.add(new File("c:\\1.xml"));EmailSender sender=new EmailSender("smtp.163.com","*******@163.com","********@163.com","测试邮件","测试内容",list,"*********@163.com","*******","25");String [] result = sender.sendMail();System.out.println(result[1]+"ffffffffffffffff");}}/** * class MyAuthenticator用于邮件服务器认证 构造器需要用户名、密码作参数 */class EmailAuthenticator extends Authenticator {private String username = null;private String password = null;public EmailAuthenticator(String username, String password) {this.username = username;this.password = password;}public PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(username, password);}}