JavaMail检查消息内容gmail IMAP [英] JavaMail check message content gmail IMAP

问题描述

我正在尝试阅读我的消息，我可以让它打印标题但是来自和内容显示有趣。
以下是我用来显示消息的代码：

I am trying to read my messages, I can get it to print the header but the from and the content are displayed funny. Here is the code I am using to display the messages:

   int j = message.length-1;
    for (int i=j;i>=0;i--) {
        System.out.println("Message " + (i + 1));
        System.out.println("From : " + message[i].getFrom());
        System.out.println("Subject : " + message[i].getSubject());
        try {
            System.out.println("Body: " + message[i].getContent());
        } catch (IOException ex) {
            System.out.println(ex);
        }
    }

输出如下：

 Message 1:
 From: [javax.mail.internet.InternetAddress;@175831e]
 Subject: Hello //This is correct
 Body: javax.mail.internet.MimeMultipart@15b5219

为什么不这打印出from语句的实际电子邮件地址？为什么不打印实际的身体内容？ （我只对纯文本感兴趣。）

Why doesn't this print out the actual email address for the from statement? And why doesn't it print out the actual body content? (I am only interesting in the plain text.)

整个代码：

import javax.mail.*;
import javax.mail.internet.*;
import javax.mail.search.*;
import java.util.*;
import com.sun.mail.imap.*;
import java.io.*;

public class MailClient {
public static void main(String[] args) {
    try {
    Properties props = new Properties();
    props.put("mail.store.protocol","imaps");

    Session session;

    session = Session.getDefaultInstance(props, null);
    Store store = session.getStore("imaps");
    store.connect("imap.gmail.com","[e-mail]","password");

    IMAPFolder folder = (IMAPFolder) store.getFolder("inbox");
    folder.open(Folder.READ_ONLY);

    Flags seen = new Flags(Flags.Flag.SEEN);
    FlagTerm unseenFlagTerm = new FlagTerm(seen,false);
    Message message[] = folder.search(unseenFlagTerm); 


    int j = message.length-1;
    for (int i=j;i>=0;i--) {
        System.out.println("Message " + (i + 1));
        System.out.println("From : " + message[i].getFrom());
        System.out.println("Subject : " + message[i].getSubject());
        try {
            System.out.println("Body: " + message[i].getContent());
        } catch (IOException ex) {
            System.out.println(ex);
        }
    }    
    System.out.println(newMsg);

    folder.close(false);
    store.close();
    }
    catch (MessagingException e) {
        System.out.println("Error: " + e);
    }
}
}

谢谢！

推荐答案

对于纯文本和html消息：

For plain text and html messages:

String content = messages [i] .getContent（）。toString（）;

对于多部分消息：

Multipart multipart = (Multipart) messages[i].getContent();

    for (int j = 0; j < multipart.getCount(); j++) {

        BodyPart bodyPart = multipart.getBodyPart(j);

        String disposition = bodyPart.getDisposition();

          if (disposition != null && (disposition.equalsIgnoreCase("ATTACHMENT"))) { // BodyPart.ATTACHMENT doesn't work for gmail
              System.out.println("Mail have some attachment");

              DataHandler handler = bodyPart.getDataHandler();
              System.out.println("file name : " + handler.getName());                                 
            }
          else { 
              System.out.println("Body: "+bodyPart.getContent());
              content= bodyPart.getContent().toString();
            }

这篇关于JavaMail检查消息内容gmail IMAP的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！