邮件下载及发送，获取邮件数各种数据
1 import java.io.*; 2 import java.text.*; 3 import java.util.*; 4 import javax.mail.*; 5 import javax.mail.internet.*; 6 7 public class PraseMimeMessage { 8 private MimeMessage mimeMessage = null; 9 private String saveAttachPath = "";// 附件下载后的存放目录 10 private StringBuffer bodytext = new StringBuffer(); 11 // 存放邮件内容的StringBuffer对象 12 private String dateformat = "yy-MM-dd HH:mm";// 默认的日前显示格式 13 /** 14 * 构造函数,初始化一个MimeMessage对象 15 */ 16 public PraseMimeMessage() { 17 } 18 public PraseMimeMessage(MimeMessage mimeMessage) { 19 this.mimeMessage = mimeMessage; 20 System.out.println("create a PraseMimeMessage object........"); 21 } 22 public void setMimeMessage(MimeMessage mimeMessage) { 23 this.mimeMessage = mimeMessage; 24 } 25 /** 26 * 获得发件人的地址和姓名 27 */ 28 public String getFrom() throws Exception { 29 InternetAddress address[] = (InternetAddress[]) mimeMessage.getFrom(); 30 String from = address[0].getAddress(); 31 if (from == null) from = ""; 32 String personal = address[0].getPersonal(); 33 if (personal == null) personal = ""; 34 String fromaddr = personal + "<" + from + ">"; 35 return fromaddr; 36 } 37 /** 38 * 获得邮件的收件人，抄送，和密送的地址和姓名，根据所传递的参数的不同 "to"----收件人 "cc"---抄送人地址 "bcc"---密送人地址 39 */ 40 public String getMailAddress(String type) throws Exception { 41 String mailaddr = ""; 42 String addtype = type.toUpperCase(); 43 InternetAddress[] address = null; 44 if (addtype.equals("TO") || addtype.equals("CC")|| addtype.equals("BCC")) { 45 if (addtype.equals("TO")) { 46 address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.TO); 47 } else if (addtype.equals("CC")) { 48 address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.CC); 49 } else { 50 address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.BCC); 51 } 52 if (address != null) { 53 for (int i = 0; i < address.length; i++) { 54 String email = address[i].getAddress(); 55 if (email == null) email = ""; 56 else { 57 email = MimeUtility.decodeText(email); 58 } 59 String personal = address[i].getPersonal(); 60 if (personal == null) personal = ""; 61 else { 62 personal = MimeUtility.decodeText(personal); 63 } 64 String compositeto = personal + "<" + email + ">"; 65 mailaddr += "," + compositeto; 66 } 67 mailaddr = mailaddr.substring(1); 68 } 69 } else { 70 throw new Exception("Error emailaddr type!"); 71 } 72 return mailaddr; 73 } 74 /** 75 * 获得邮件主题 76 */ 77 public String getSubject() throws MessagingException { 78 String subject = ""; 79 try { 80 subject = MimeUtility.decodeText(mimeMessage.getSubject()); 81 if (subject == null) subject = ""; 82 } catch (Exception exce) {} 83 return subject; 84 } 85 86 /** 87 * 获得邮件发送日期 88 */ 89 public String getSentDate() throws Exception { 90 Date sentdate = mimeMessage.getSentDate(); 91 SimpleDateFormat format = new SimpleDateFormat(dateformat); 92 return format.format(sentdate); 93 } 94 95 /** 96 * 获得邮件正文内容 97 */ 98 public String getBodyText() { 99 return bodytext.toString(); 100 } 101 /** 102 * 解析邮件，把得到的邮件内容保存到一个StringBuffer对象中，解析邮件 主要是根据MimeType类型的不同执行不同的操作，一步一步的解析 103 */ 104 public void getMailContent(Part part) throws Exception { 105 String contenttype = part.getContentType(); 106 int nameindex = contenttype.indexOf("name"); 107 boolean conname = false; 108 if (nameindex != -1) conname = true; 109 System.out.println("CONTENTTYPE: " + contenttype); 110 if (part.isMimeType("text/plain") && !conname) { 111 bodytext.append((String) part.getContent()); 112 } else if (part.isMimeType("text/html") && !conname) { 113 bodytext.append((String) part.getContent()); 114 } else if (part.isMimeType("multipart/*")) { 115 Multipart multipart = (Multipart) part.getContent(); 116 int counts = multipart.getCount(); 117 for (int i = 0; i < counts; i++) { 118 getMailContent(multipart.getBodyPart(i)); 119 } 120 } else if (part.isMimeType("message/rfc822")) { 121 getMailContent((Part) part.getContent()); 122 } else {} 123 } 124 /** 125 * 判断此邮件是否需要回执，如果需要回执返回"true",否则返回"false" 126 */ 127 public boolean getReplySign() throws MessagingException { 128 boolean replysign = false; 129 String needreply[] = mimeMessage.getHeader("Disposition-Notification-To"); 130 if (needreply != null) { 131 replysign = true; 132 } 133 return replysign; 134 } 135 /** 136 * 获得此邮件的Message-ID 137 */ 138 public String getMessageId() throws MessagingException { 139 return mimeMessage.getMessageID(); 140 } 141 /** 142 * 【判断此邮件是否已读，如果未读返回返回false,反之返回true】 143 */ 144 public boolean isNew() throws MessagingException { 145 boolean isnew = false; 146 Flags flags = ((Message) mimeMessage).getFlags(); 147 Flags.Flag[] flag = flags.getSystemFlags(); 148 System.out.println("flags's length: " + flag.length); 149 for (int i = 0; i < flag.length; i++) { 150 if (flag[i] == Flags.Flag.SEEN) { 151 isnew = true;System.out.println("seen Message.......");break; 152 } 153 } 154 return isnew; 155 } 156 157 /** 158 * 判断此邮件是否包含附件 159 */ 160 public boolean isContainAttach(Part part) throws Exception { 161 boolean attachflag = false; 162 String contentType = part.getContentType(); 163 if (part.isMimeType("multipart/*")) { 164 Multipart mp = (Multipart) part.getContent(); 165 for (int i = 0; i < mp.getCount(); i++) { 166 BodyPart mpart = mp.getBodyPart(i); 167 String disposition = mpart.getDisposition(); 168 if ((disposition != null)&& ((disposition.equals(Part.ATTACHMENT)) || (disposition.equals(Part.INLINE)))) 169 attachflag = true; 170 else if (mpart.isMimeType("multipart/*")) { 171 attachflag = isContainAttach((Part) mpart); 172 } else { 173 String contype = mpart.getContentType(); 174 if (contype.toLowerCase().indexOf("application") != -1) 175 attachflag = true; 176 if (contype.toLowerCase().indexOf("name") != -1) 177 attachflag = true; 178 } 179 } 180 } else if (part.isMimeType("message/rfc822")) { 181 attachflag = isContainAttach((Part) part.getContent()); 182 } 183 return attachflag; 184 } 185 /** 186 * 【保存附件】 187 */ 188 public void saveAttachMent(Part part) throws Exception { 189 String fileName = ""; 190 if (part.isMimeType("multipart/*")) { 191 Multipart mp = (Multipart) part.getContent(); 192 for (int i = 0; i < mp.getCount(); i++) { 193 BodyPart mpart = mp.getBodyPart(i); 194 String disposition = mpart.getDisposition(); 195 if ((disposition != null) 196 && ((disposition.equals(Part.ATTACHMENT)) || (disposition.equals(Part.INLINE)))) { 197 fileName = mpart.getFileName(); 198 if (fileName.toLowerCase().indexOf("gb2312") != -1) { 199 fileName = MimeUtility.decodeText(fileName); 200 } 201 saveFile(fileName, mpart.getInputStream()); 202 } else if (mpart.isMimeType("multipart/*")) { 203 saveAttachMent(mpart); 204 } else { 205 fileName = mpart.getFileName(); 206 if ((fileName != null)&& (fileName.toLowerCase().indexOf("GB2312") != -1)) { 207 fileName = MimeUtility.decodeText(fileName); 208 saveFile(fileName, mpart.getInputStream()); 209 } 210 } 211 } 212 } else if (part.isMimeType("message/rfc822")) { 213 saveAttachMent((Part) part.getContent()); 214 } 215 /** 216 * 【设置附件存放路径】 217 */ 218 public void setAttachPath(String attachpath) { 219 this.saveAttachPath = attachpath; 220 } 221 /** 222 * 【设置日期显示格式】 223 */ 224 public void setDateFormat(String format) throws Exception { 225 this.dateformat = format; 226 } 227 /** 228 * 【获得附件存放路径】 229 */ 230 public String getAttachPath() { 231 return saveAttachPath; 232 } 233 /** 234 * 【真正的保存附件到指定目录里】 235 */ 236 private void saveFile(String fileName, InputStream in) throws Exception { 237 String osName = System.getProperty("os.name"); 238 String storedir = getAttachPath();String separator = ""; 239 if (osName == null)osName = ""; 240 if (osName.toLowerCase().indexOf("win") != -1) { 241 separator = "\\"; 242 if (storedir == null || storedir.equals("")) 243 storedir = "c:\\tmp"; 244 } else { 245 separator = "/";storedir = "/tmp"; 246 } 247 File storefile = new File(storedir + separator + fileName); 248 System.out.println("storefile's path: " + storefile.toString()); 249 BufferedOutputStream bos = null; 250 BufferedInputStream bis = null; 251 try { 252 bos = new BufferedOutputStream(new FileOutputStream(storefile)); 253 bis = new BufferedInputStream(in); 254 int c; 255 while ((c = bis.read()) != -1) { 256 bos.write(c); 257 bos.flush(); 258 } 259 } catch (Exception exception) { 260 exception.printStackTrace(); 261 throw new Exception("文件保存失败!"); 262 } finally { 263 bos.close(); 264 bis.close(); 265 } 266 } 267 /** 268 * PraseMimeMessage类测试 269 */ 270 public static void main(String args[]) throws Exception { 271 String host = "pop3.163.com"; // 【pop.mail.yahoo.com.cn】 272 String username = "***@163.com"; 273 String password = "***"; 274 Properties props = new Properties(); 275 Session session = Session.getDefaultInstance(props, null); 276 Store store = session.getStore("pop3"); 277 store.connect(host, username, password); 278 Folder folder = store.getFolder("INBOX"); 279 folder.open(Folder.READ_ONLY); 280 Message message[] = folder.getMessages(); 281 System.out.println("Messages's length: " + message.length); 282 PraseMimeMessage pmm = null; 283 for (int i = 0; i < message.length; i++) { 284 pmm = new PraseMimeMessage((MimeMessage) message[i]); 285 System.out.println("Message " + i + " subject: " + pmm.getSubject()); 286 System.out.println("Message " + i + " containAttachment: "+
pmm.isContainAttach((Part) message[i])); 287 System.out.println("Message " + i + " form: " + pmm.getFrom()); 288 System.out.println("Message " + i + " to: "+ pmm.getMailAddress("to")); 289 pmm.setDateFormat("yy年MM月dd日 HH:mm"); 290 pmm.getMailContent((Part) message[i]); 291 System.out.println("Message " + i + " bodycontent: \r\n"+ pmm.getBodyText()); 292 File file = new File("e:\\tmp\\"); 293 if (!file.exists()) { 294 file.mkdirs(); 295 } 296 pmm.setAttachPath(file.toString()); 297 pmm.saveAttachMent((Part) message[i]); 298 } 299 } 300 301 302 /***************下载邮件保存到本地*******************/ 303 /**305 * @param date 306 * @return 307 * @throws MessagingException 308 * @throws FileNotFoundException 309 */ 310 public MimeMessage getEmailInstance(Date date, String path, String from, String to, String subjects, String cc) throws Exception{ 311 MimeMessage msg = new MimeMessage(session); 312 msg.setFrom(new InternetAddress(from)); 313 msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to)) ; 314 if(null!=cc&&!"".equals(cc)){ 315 msg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(cc)); 316 } 317 msg.setRecipients(Message.RecipientType.BCC, InternetAddress.parse(bcc)) ; 318 subjects = transferChinese(subjects); 319 msg.setSubject(subjects); 320 // 构造Multipart 321 Multipart mp = getMultipartEmailInstance(); 322 // 向Multipart添加MimeMessage 323 msg.setContent(mp); 324 msg.setSentDate(date); 325 File file = new File(path); 326 FileOutputStream fs = new FileOutputStream(file); 327 msg.writeTo(fs); 328 fs.close(); 329 return msg; 330 } 331 //处理附件 332 public Multipart getMultipartEmailInstance(){ 333 Multipart mp = new MimeMultipart(); 334 try{ 335 // 向Multipart添加正文 336 MimeBodyPart mbpContent = new MimeBodyPart(); 337 mbpContent.setContent(contents, "text/html;charset=utf-8"); 338 // 向MimeMessage添加（Multipart代表正文） 339 mp.addBodyPart(mbpContent); 340 // 向Multipart添加附件 341 Enumeration<String> efile = file.elements(); 342 while (efile.hasMoreElements()) { 343 344 MimeBodyPart mbpFile = new MimeBodyPart(); 345 filename = efile.nextElement().toString(); 346 FileDataSource fds = new FileDataSource(filename); 347 mbpFile.setDataHandler(new DataHandler(fds)); 348 // <span style="color: #ff0000;">//这个方法可以解决附件乱码问题。</span> 349 String filename= new String(MimeUtility.encodeText(new String(fds.getName().getBytes(),"GB2312"), "GB2312", "B")); 350 mbpFile.setFileName(filename); 351 // 向MimeMessage添加（Multipart代表附件） 352 mp.addBodyPart(mbpFile); 353 } 354 file.removeAllElements(); 355 }catch(Exception ce){ 356 log.error("==========邮件附件异常=================="+ce.getMessage()); 357 } 358 return mp; 359 } 360 361 //处理抄送信息 362 public String formatAddress(Address[] addr) { 363 StringBuffer sb = new StringBuffer(); 364 if (addr == null) { 365 return ""; 366 } 367 for (int i = 0; i < addr.length; i++) { 368 Address a = addr[i]; 369 if (a instanceof InternetAddress) { 370 InternetAddress ia = (InternetAddress)a; 371 sb.append(ia.getPersonal() + "<" + ia.getAddress() + ">,"); 372 } else { 373 sb.append(a.toString()); 374 } 375 } 376 if (sb.length() != 0) { 377 return sb.substring(0,sb.length()-1); 378 } 379 return ""; 380 } 381 /************************************************/ 384 }
不通过服务，通过 cmd 命令打开，用 java 实现
Runtime.getRuntime().exec("cmd/C" + path); //path 根据文件实际路径设置
