java email操作demo和解析eml文件

package com.nerve.core.test.email;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.io.InputStream;import java.nio.file.FileVisitResult;import java.nio.file.Files;import java.nio.file.Path;import java.nio.file.Paths;import java.nio.file.SimpleFileVisitor;import java.nio.file.attribute.BasicFileAttributes;import java.util.Properties;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.Multipart;import javax.mail.Part;import javax.mail.Session;import javax.mail.internet.MimeMessage;//http://www.yiibai.com/javamail_api/javamail_api_sending_simple_email.html//java email操作demo和解析eml文件。public class eml {public static void main(String args[]) throws Exception {Files.walkFileTree(Paths.get("G:\\测试数据\\hehe\\eml"),new SimpleFileVisitor<Path>() {@Overridepublic FileVisitResult visitFile(Path file,BasicFileAttributes attrs) throws IOException {if (file.toFile().getAbsolutePath().endsWith(".eml")) {test(file.toFile().getAbsolutePath());}return super.visitFile(file, attrs);}});}public static void test(String emlPath) {try {System.out.println(emlPath);Properties props = new Properties();Session session = Session.getDefaultInstance(props, null);InputStream inMsg;inMsg = new FileInputStream(emlPath);Message msg = new MimeMessage(session, inMsg);String[] date = msg.getHeader("Date");// String[] from=// String[] to=if (msg.isMimeType("multipart/*") || msg.isMimeType("MULTIPART/*")) {System.out.println("multipart");Multipart mp = (Multipart) msg.getContent();int totalAttachments = mp.getCount();if (totalAttachments > 0) {for (int i = 0; i < totalAttachments; i++) {Part part = mp.getBodyPart(i);String s = getMailContent(part);String attachFileName = part.getFileName();String disposition = part.getDisposition();String contentType = part.getContentType();if ((attachFileName != null && attachFileName.endsWith(".ics"))|| contentType.indexOf("text/calendar") >= 0) {String[] dateHeader = msg.getHeader("date");}System.out.println(s);System.out.println(attachFileName);System.out.println(disposition);System.out.println(contentType);}inMsg.close();}} else {System.out.println("part");System.out.println(msg.getContent().toString());}} catch (FileNotFoundException e) {e.printStackTrace();} catch (MessagingException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} catch (Exception e) {e.printStackTrace();}}public static String getMailContent(Part part) throws Exception {String contenttype = part.getContentType();int nameindex = contenttype.indexOf("name");boolean conname = false;if (nameindex != -1) {conname = true;}StringBuilder bodytext = new StringBuilder();if (part.isMimeType("text/plain") && !conname) {bodytext.append((String) part.getContent());} else if (part.isMimeType("text/html") && !conname) {bodytext.append((String) part.getContent());} else if (part.isMimeType("multipart/*")) {Multipart multipart = (Multipart) part.getContent();int counts = multipart.getCount();for (int i = 0; i < counts; i++) {getMailContent(multipart.getBodyPart(i));}} else if (part.isMimeType("message/rfc822")) {getMailContent((Part) part.getContent());} else {}return bodytext.toString();}}

package com.nerve.core.test.email;import java.util.Properties;import javax.activation.DataHandler;import javax.activation.DataSource;import javax.activation.FileDataSource;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 com.nerve.commons.util.io.PropertiesLoader;public class SendAttachmentInEmail {   public static void main(String[] args) {      // Recipient's email ID needs to be mentioned.      String to = "[e-mail]";            PropertiesLoader loader=new PropertiesLoader("email.properties");     final String username=loader.getProperty("username");     final String password=loader.getProperty("password");           // Sender's email ID needs to be mentioned      String from = username;      // Assuming you are sending email through relay.jangosmtp.net      String host = "smtp.mail.yahoo.com";      Properties props = new Properties();      props.put("mail.smtp.auth", "true");      props.put("mail.smtp.starttls.enable", "true");      props.put("mail.smtp.host", host);      props.put("mail.smtp.port", "25");      // Get the Session object.      Session session = Session.getInstance(props,         new javax.mail.Authenticator() {            protected PasswordAuthentication getPasswordAuthentication() {               return new PasswordAuthentication(username, password);            }         });      try {         // Create a default MimeMessage object.         Message message = new MimeMessage(session);         // Set From: header field of the header.         message.setFrom(new InternetAddress(from));         // Set To: header field of the header.         message.setRecipients(Message.RecipientType.TO,            InternetAddress.parse(to));         // Set Subject: header field         message.setSubject("Testing Subject");         // Create the message part         BodyPart messageBodyPart = new MimeBodyPart();         // Now set the actual message         messageBodyPart.setText("This is message body");         // Create a multipar message         Multipart multipart = new MimeMultipart();         // Set text message part         multipart.addBodyPart(messageBodyPart);         // Part two is attachment         messageBodyPart = new MimeBodyPart();         String filename = "d:/fuck.txt";         DataSource source = new FileDataSource(filename);         messageBodyPart.setDataHandler(new DataHandler(source));         messageBodyPart.setFileName(filename);         multipart.addBodyPart(messageBodyPart);         // Send the complete message parts         message.setContent(multipart);         // Send message         Transport.send(message);         System.out.println("Sent message successfully....");        } catch (MessagingException e) {         throw new RuntimeException(e);      }   }}

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