java中的ssl安全imap连接

2 周 Questions & Answers 3758

我正在尝试使用我在以下位置找到的java程序连接到我们的imap服务器，该服务器在端口993上监听：

http://harikrishnan83.wordpress.com/2009/01/24/access-gmail-with-imap-using-java-mail-api/

我在Ubuntu上运行这个程序。然而，我有以下例外：

DEBUG: setDebug: JavaMail version 1.4ea
DEBUG: getProvider() returning javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc]
DEBUG: mail.imap.fetchsize: 16384
javax.mail.MessagingException: Unrecognized SSL message, plaintext connection?;
  nested exception is:
    javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
    at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:479)
    at javax.mail.Service.connect(Service.java:275)
    at javax.mail.Service.connect(Service.java:156)
    at org.myorg.IMAP.main(IMAP.java:40)
Caused by: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
    at com.sun.net.ssl.internal.ssl.InputRecord.handleUnknownRecord(InputRecord.java:523)
    at com.sun.net.ssl.internal.ssl.InputRecord.read(InputRecord.java:355)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:798)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1138)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:753)
    at com.sun.net.ssl.internal.ssl.AppInputStream.read(AppInputStream.java:75)
    at com.sun.mail.util.TraceInputStream.read(TraceInputStream.java:97)
    at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
    at com.sun.mail.iap.ResponseInputStream.read0(ResponseInputStream.java:81)
    at com.sun.mail.iap.ResponseInputStream.readResponse(ResponseInputStream.java:67)
    at com.sun.mail.iap.Response.<init>(Response.java:83)
    at com.sun.mail.imap.protocol.IMAPResponse.<init>(IMAPResponse.java:48)
    at com.sun.mail.imap.protocol.IMAPResponse.readResponse(IMAPResponse.java:122)
    at com.sun.mail.imap.protocol.IMAPProtocol.readResponse(IMAPProtocol.java:230)
    at com.sun.mail.iap.Protocol.<init>(Protocol.java:91)
    at com.sun.mail.imap.protocol.IMAPProtocol.<init>(IMAPProtocol.java:87)
    at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:446)
    ... 3 more

在这篇文章的结尾，他们建议：看起来您必须将imap服务器的证书添加到受信任的证书存储中

下载imap服务器的证书
找到你的cacerts文件
使用keytool将证书导入到您的cacerts文件中

然而，我无法理解如何对运行在Windows机器上的IMAP服务器执行这些步骤

有人能帮我吗

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java中的ssl安全imap连接

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