store.connect() 不适用于代理上的 gmail imap

Question

store.connect() 不适用于我以下代码的代理上的 gmail imap：

Properties props = new Properties();
props.setProperty("mail.store.protocol", "imaps");
Session session = Session.getInstance(props, null);
Store store = session.getStore("imaps");
store.connect("imap.gmail.com", email, pass);
Folder inbox = store.getFolder("INBOX");
inbox.open(Folder.READ_ONLY);

出现以下错误：

javax.mail.MessagingException：连接被拒绝：连接；嵌套的 例外是：java.net.ConnectException：连接被拒绝：连接

已经试过了：

1. http://developers.viafirma.com/en/proxy-connection-problems-connection-refused
2. JavaMail SMTP-host error
3. http://javarevisited.blogspot.in/2013/02/java-net-ConnectException-Connection-refused.html

Answer 1

当我使用下面的代理和端口代码时，我的问题得到了解决：

Properties props = new Properties();
props.setProperty("http.proxySet", "true");
props.setProperty("http.proxyHost", proxyHost);
props.setProperty("http.proxyPort", proxyPort);
props.setProperty("mail.imap.port", "993");
props.setProperty("mail.store.protocol", "imaps");
Session session = Session.getInstance(props, null);
Store store = session.getStore("imaps");
store.connect("imap.gmail.com", email, pass);
Folder inbox = store.getFolder("INBOX");
inbox.open(Folder.READ_ONLY);