JAVA示例：搜索IMAP邮箱里的邮件

最新推荐文章于 2024-05-11 04:38:41 发布

ncowboy

最新推荐文章于 2024-05-11 04:38:41 发布

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文章标签： java import string null properties exception

本文链接：https://blog.youkuaiyun.com/ncowboy/article/details/2762206

本文提供了一个使用Java进行邮件搜索的示例代码，通过IMAP协议连接到指定的邮件服务器并搜索特定发件人的邮件。代码展示了如何配置连接属性、打开邮箱文件夹以及检索邮件的基本信息如发件人、主题和大小。

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import java.util.Properties;

import javax.mail.Address;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.internet.InternetAddress;
import javax.mail.search.FromStringTerm;

public class SearchMail {

    public static void main(String[] args) throws Exception {
        //config
        String protocol = "imap";
        String host = "mailsv01.xxxxxxxx";
        int port = 993;
        String user = "xx";
        String password = "xx";
        String mbox = "INBOX";

        Properties props = System.getProperties();
        Session sess = Session.getInstance(props, null);
        //            sess.setDebug(true);
        Store st = sess.getStore("imaps");
        st.connect(host, port, user, password);
        Folder fol = st.getFolder(mbox);

        SearchMail one=new SearchMail();
        if (fol.exists()) {
            for (Folder f : fol.list()) {
                System.out.printf("box:%s", f.getName());
            }
            fol.open(Folder.READ_ONLY);
            for (Message m : one.search(fol)) {
                System.out.printf("/n来自%s /n标题%s/n大小%d/n",
                        Add2Str(m.getFrom()), m.getSubject(), m.getSize());
            }
            fol.close(false);
        } else {
            System.out.printf("%s is not exist.", mbox);
        }
        st.close();

}

//    Message[] list(Folder f) {
//        try {
//            return f.getMessages();
//        } catch (MessagingException e) {
//            e.printStackTrace();
//            return null;
//        }
//    }
    Message[] search(Folder f) {
        try {
            return f.search(new FromStringTerm("xxxxxxxx"));
        } catch (MessagingException e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String Add2Str(Address[] a) {
        if (a == null) {
            return null;
        }
        StringBuilder sb = new StringBuilder("");
        for (Address adr : a) {
            InternetAddress ia = (InternetAddress) adr;
            sb.append(ia.getAddress());
        }
        return sb.toString();

}