基于Java Mail 进行发送（带附件和压缩附件）的邮件

刚进公司的training, 下面是要求：

1. Self-study of Java Mail library:  http://www.oracle.com/technetwork/java/javamail/index.html  --下载Java Mail相关的包
2. 要求：
   1. (Required)Get attachment (XML) content of current document
   2. by :DynamicEntityModel.toLightXml().  ----转化为字符串
   3. (Optional) Compress the attachment in ZIP format and send as attachment.
   4. 

      package com.core.cbx.coloralbert.action;
      
      import java.io.BufferedOutputStream;
      import java.io.ByteArrayInputStream;
      import java.io.File;
      import java.io.FileInputStream;
      import java.io.FileOutputStream;
      import java.io.FileWriter;
      import java.io.IOException;
      import java.math.BigDecimal;
      import java.util.Properties;
      import java.util.zip.ZipEntry;
      import java.util.zip.ZipOutputStream;
      
      import javax.activation.DataHandler;
      import javax.activation.DataSource;
      import javax.activation.FileDataSource;
      import javax.mail.Address;
      import javax.mail.Authenticator;
      import javax.mail.BodyPart;
      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 org.dom4j.DocumentException;
      import org.dom4j.io.OutputFormat;
      import org.dom4j.io.SAXReader;
      import org.dom4j.io.XMLWriter;
      
      import com.core.cbx.action.actionContext.SaveDoc;
      import com.core.cbx.action.exception.ActionException;
      import com.core.cbx.common.type.DateTime;
      import com.core.cbx.data.DynamicEntityModel;
      import com.core.cbx.data.constants.ColorAlbert;
      import com.core.cbx.data.entity.DynamicEntity;
      import com.core.cbx.data.exception.DataException;
      
      /**
       * @author Albert.chen
       *
       */
      public class SaveDocAction extends com.core.cbx.action.SaveDocAction<SaveDoc>{
      
          /* (non-Javadoc)
           * @see com.core.cbx.action.SaveDocAction#process(com.core.cbx.action.actionContext.SaveDoc)
           */
      
          @Override
          protected void process(final SaveDoc actionContext) throws ActionException {
      
              final DynamicEntity doc = actionContext.getDoc();
      
               //getValue
              final BigDecimal defaultValue = new BigDecimal(0);
      
              final BigDecimal rgb_number = doc.getBigDecimal(ColorAlbert.RGB_CODE,defaultValue);
      
              final BigDecimal cmyk_number = doc.getBigDecimal(ColorAlbert.CMYK_CODE,defaultValue);
      
              final BigDecimal mul_result =rgb_number.multiply(cmyk_number);
      
               //setValue
              doc.put(ColorAlbert.HSV_CODE, mul_result);
      
              doc.put(ColorAlbert.STATUS, ColorAlbert.WorkflowStatus.IN_PROGRESS);
      
              //save information
              super.process(actionContext);
      
          }
      
          @Override
          protected void postprocess(SaveDoc actionContext) throws ActionException {
              // TODO Auto-generated method stub
      
              final DynamicEntity doc = actionContext.getDoc();
              try {
                  final String docString=DynamicEntityModel.toLightXml(doc);
                  final String refNo=doc.getReference();
                  final DateTime updatedOn=doc.getDateTime(ColorAlbert.UPDATED_ON);
                  final String updateUser=doc.getString(ColorAlbert.UPDATE_USER);
                  final String fileName=strChangeXML(docString,refNo);
                  compressedFile(fileName, "D:\\"+ refNo +".zip");
                  sengMail(refNo, fileName, updatedOn, updateUser);
              } catch (final DataException e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
              } catch (final IOException e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
              } catch (final MessagingException e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
              } catch (final Exception e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
                  System.out.println("压缩文件生成失败...");
              }
      
          }
      
          //将字符串string类型转换成xml文件
          public static String strChangeXML(final String str, final String refNo) throws IOException {
                 final SAXReader saxReader = new SAXReader();
                 final StringBuffer stringBuffer=new StringBuffer();
                 stringBuffer.append(refNo).append(".xml");
                 final String fileName=stringBuffer.toString();
                 org.dom4j.Document document;
                 try {
                  document =saxReader.read(new ByteArrayInputStream(str.getBytes("UTF-8")));
                  final OutputFormat format = OutputFormat.createPrettyPrint();
                  /** 将document中的内容写入文件中 */
                  final XMLWriter writer = new XMLWriter(new FileWriter(new File(fileName)),format);
                  writer.write(document);
                  writer.close();
                 } catch (final DocumentException e) {
                  e.printStackTrace();
                 }
      
                 return fileName;
         }
      
          public static void sengMail( final String refNo,final String fileName, DateTime updatedOn, String updateUser) throws MessagingException{
              // 创建邮件的发送过程中用到的主机和端口号的属性文件
              final Properties pro = new Properties();
              // 设置邮件发送方的主机地址如果是163邮箱，则为smtp.163.com
              // 如果是其他的邮箱可以参照http://wenku.baidu.com/link?url=Cf-1ggeW3e7Rm9KWfz47UL7vvkRpPxAKBlYoTSGpnK4hxpJDiQ0A4lRoPDncMlcMIvUpEn6PD0aObgm5zJaM7AOGkRdccSx6HDH2fSWkxIq这个文档
              pro.put("mail.smtp.host", "*******.com");
              // 设置发送邮件端口号
              pro.put("mail.smtp.port", "25");
              pro.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
              // 设置邮件发送需要认证
              pro.put("mail.smtp.auth", "true");
              // 创建邮件验证信息，即发送邮件的用户名和密码
              final Authenticator authenticator = new Authenticator() {
                  @Override
                  protected PasswordAuthentication getPasswordAuthentication() {
                      // 重写验证方法，填写用户名，密码
                      return new PasswordAuthentication("*******.com", "ma2s******");
                  }
              };
      
              // 根据邮件会话 构建一个邮件的session
              final Session sendMailSession = Session
                      .getDefaultInstance(pro, authenticator);
              //打印信息
              sendMailSession.setDebug(true);
              // 创建一个邮件消息
              final Message message = new MimeMessage(sendMailSession);
              // 创建邮件发送者地址
              final Address sourceAddress = new InternetAddress("******.com");
              // 将原地址设置到消息的信息中
              message.setFrom(sourceAddress);
              // 创建邮件的接收者地址
              final Address destAddress = new InternetAddress("***********.com");
              final Address ccAddress=new InternetAddress("************.com");
              // 将接收者的地址设置到消息的信息中
              message.setRecipient(Message.RecipientType.TO, destAddress);
              // 将接收者的地址设置到消息的信息中
              message.setRecipient(Message.RecipientType.CC, ccAddress);
              // 设置邮件的主题
              final StringBuffer strBuf2=new StringBuffer();
              strBuf2.append("subject:").append(refNo).append(".xml ").append("was updatedp[Do Not Reply]");
              message.setSubject(strBuf2.toString());
      
              // 向multipart对象中添加邮件的各个部分内容，包括文本内容和附件
              final Multipart multipart = new MimeMultipart();
      
              //设置邮件的文本内容
              final BodyPart contentPart = new MimeBodyPart();
      
              final StringBuffer strBuf=new StringBuffer();
              strBuf.append("subject:").append(refNo).append(".xml ").append("was updatedp[Do Not Reply]").append("<br/><br/>");
              strBuf.append("-------------------------------------------------------------").append("<br/>");
              strBuf.append(" Dear Customer,").append("<br/><br/>");
              strBuf.append(refNo).append(" is updated at").append(updatedOn).append(" by ").append(updateUser).append(".").append("<br/><br/>");
              strBuf.append("Regards,").append("<br/>");
              strBuf.append("CBX System").append("<br/>");
              // 设置邮件的发送内容
              contentPart.setContent(strBuf.toString(),"text/html;charset=UTF-8");
              multipart.addBodyPart(contentPart);
              //添加附件
              final BodyPart messageBodyPart= new MimeBodyPart();
      //        final String filename="file.txt";
              final DataSource source = new FileDataSource(fileName);
              //添加附件的内容
              messageBodyPart.setDataHandler(new DataHandler(source));
              messageBodyPart.setFileName(fileName);
      
              multipart.addBodyPart(messageBodyPart);
      
              //添加附件2
              final BodyPart messageBodyPart2= new MimeBodyPart();
              final String zipFileName=refNo +".zip";
              final DataSource source2 = new FileDataSource("D:\\"+ zipFileName);
              //添加附件的内容
              messageBodyPart2.setDataHandler(new DataHandler(source));
              messageBodyPart2.setFileName(zipFileName);
      
              multipart.addBodyPart(messageBodyPart2);
      
              //将multipart对象放到message中
              message.setContent(multipart);
              //保存邮件
              message.saveChanges();
              // 可以设置邮件的发送时间(就是对方看邮件发送的时间)
              // String sendDate = "2013-12-23 17:55:00";
              // Date date = new
              // SimpleDateFormat("yyyy-MM-dd hh:mm:ss").parse(sendDate);
              // message.setSentDate(date);
      
              // 发送邮件
              Transport.send(message);
          }
      
          /**
           * @desc 将源文件/文件夹生成指定格式的压缩文件,格式zip
           * @param resourePath 源文件/文件夹
           * @param targetPath  目的压缩文件保存路径
           * @return void
           * @throws Exception
           */
          public void compressedFile(String resourcesPath,String targetPath) throws Exception{
              final File resourcesFile = new File(resourcesPath);     //源文件
              final File targetFile = new File(targetPath);           //目的
              //如果目的路径不存在，则新建
              if(!targetFile.exists()){
                  targetFile.mkdirs();
              }
      
              final String targetName = resourcesFile.getName()+".zip";   //目的压缩文件名
              final FileOutputStream outputStream = new FileOutputStream(targetPath+"\\"+targetName);
              final ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(outputStream));
      
              createCompressedFile(out, resourcesFile, "");
      
              out.close();
          }
      
          /**
           * @desc 生成压缩文件。
           *                  如果是文件夹，则使用递归，进行文件遍历、压缩
           *       如果是文件，直接压缩
           * @param out  输出流
           * @param file  目标文件
           * @return void
           * @throws Exception
           */
          public void createCompressedFile(ZipOutputStream out,File file,String dir) throws Exception{
              //如果当前的是文件夹，则进行进一步处理
              if(file.isDirectory()){
                  //得到文件列表信息
                  final File[] files = file.listFiles();
                  //将文件夹添加到下一级打包目录
                  out.putNextEntry(new ZipEntry(dir+"/"));
      
                  dir = dir.length() == 0 ? "" : dir +"/";
      
                  //循环将文件夹中的文件打包
                  for(int i = 0 ; i < files.length ; i++){
                      createCompressedFile(out, files[i], dir + files[i].getName());         //递归处理
                  }
              }
              else{   //当前的是文件，打包处理
                  //文件输入流
                  final FileInputStream fis = new FileInputStream(file);
      
                  out.putNextEntry(new ZipEntry(dir));
                  //进行写操作
                  int j =  0;
                  final byte[] buffer = new byte[1024];
                  while((j = fis.read(buffer)) > 0){
                      out.write(buffer,0,j);
                  }
                  //关闭输入流
                  fis.close();
                  System.out.println("压缩文件已经生成...");
              }
          }
      
      }