Question

我有以下方法使用imap

从Gmail检索邮件

public static void main(String[] args)
    {
        Properties props = new Properties();
        try
        {
            props.load(new FileInputStream(new File("smtp.properties")));
            Session session = Session.getDefaultInstance(props, null);

            Store store = session.getStore("imaps");
            store.connect("smtp.gmail.com", "******@gmail.com", "mypass");

            Folder inbox = store.getFolder("inbox");
            inbox.open(Folder.READ_ONLY);
            int messageCount = inbox.getMessageCount();

            Message[] messages = inbox.getMessages();
            System.out.println("------------------------------");
            for (int i = 0; i < 10; i++)
            {
                System.out.println("Mail Subject:- " + messages[i].getSubject());
            }
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }

我的smtp.properties包含

 mail.smtp.host=smtp.gmail.com
 mail.smtp.socketFactory.port=465
 mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory
 mail.smtp.auth=true
 mail.smtp.port=465

运行程序时，我得到以下内容

javax.mail.MessagingException: Remote host closed connection during handshake;
  nested exception is:
    javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
    at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:695)
    at javax.mail.Service.connect(Service.java:345)
    at javax.mail.Service.connect(Service.java:226)
    at gmailsmpt.Main.main(Main.java:25)
Caused by: javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
    at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:532)
    at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:337)
    at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:229)
    at com.sun.mail.iap.Protocol.<init>(Protocol.java:116)
    at com.sun.mail.imap.protocol.IMAPProtocol.<init>(IMAPProtocol.java:121)
    at com.sun.mail.imap.IMAPStore.newIMAPProtocol(IMAPStore.java:710)
    at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:659)
    ... 3 more
Caused by: java.io.EOFException: SSL peer shut down incorrectly
    at sun.security.ssl.InputRecord.read(Unknown Source)
    ... 14 more

如何解决问题？

Answer 1

还有更多的堆栈跟踪吗？较旧的Java版本存在TLS握手问题，RSA密钥超过1024位（也可能是具有正确位字节的密钥）。

这已在Java 1.7或Java 1.8中修复。

Answer 2

首先，清理所有这些common mistakes。你不需要任何套接字工厂。

然后尝试这些connection debugging tips。

可能您有防火墙或防病毒程序阻止您连接。

Answer 3

尝试在下面添加属性： properties.put（＆＃34; mail.smtp.ssl.trust＆＃34;，＆＃34; smtp.gmail.com＆＃34;）;

SSLHandshakeException：握手期间远程主机关闭连接

3 个答案: