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JavaMail IMAP消息内容SSL/NON
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Stack Overflow用户
提问于 2014-01-22 13:31:59
回答 1查看 2.1K关注 0票数 1

我在JavaMail中遇到了关于IMAP的奇怪问题。

我已经知道了很多关于JavaMail的知识,我也知道在哪里寻找问题/答案,但是我无法找到这个问题的解决方案。

我有IMAP通道,可以在上面设置SSL已启用或禁用。当我创建新的电子邮件消息(例如,主题:“测试”,正文:"HELLO")并从Thunderbird客户端发送它,以便能够从我的IMAP频道下载它,事情变得越来越奇怪。

在启用SSL时,一切正常。(在我的IMAP通道中)我从电子邮件文件夹中获得消息,成功地连接到存储区后,我从该消息中获得getContent() (它总是字符串类型,而不是MimeMultipart或Multipart),输出是"HELLO“。

但是,在SSL禁用时,一切都正常,但我接收的是不同的身体。它看起来像是被解析的整个消息(看下面)

message.getContent().toString();使用SSL

代码语言:javascript
复制
HELLO

message.getContent().toString();不使用SSL

代码语言:javascript
复制
Return-Path: and@127.0.0.1
Received: from [127.0.0.1] (localhost [127.0.0.1]) by PC ; Wed, 22 Jan 2014 13:23:17 +0100
Message-ID: <52DFB835.9020300@127.0.0.1>
Date: Wed, 22 Jan 2014 13:23:17 +0100
From: "and@127.0.0.1" <and@127.0.0.1>
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130509 Thunderbird/17.0.6
MIME-Version: 1.0
To: and@127.0.0.1
Subject: TEST
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit

有人知道这是怎么回事吗?下面是我的代码片段(向您展示最重要的部分):

代码语言:javascript
复制
// properties used to create session 
String protocol = useSSL ? "imaps" : imap";

properties.setProperty("mail.store.protocol", protocol);
properties.setProperty("mail." + protocol + ".host", ...);
properties.setProperty("mail." + protocol + ".user", ...);
properties.setProperty("mail." + protocol + ".port", ...);
properties.setProperty("mail." + protocol + ".password", ...);

// only when using ssl
properties.setProperty("mail.imaps.auth", "true");
properties.setProperty("mail.imaps.starttls.enable", "true");
properties.setProperty("mail.imaps.ssl.checkserveridentity", "true");
properties.setProperty("javax.net.ssl.trustStore", ...);
properties.setProperty("javax.net.ssl.trustStorePassword", ...);

// get store and other important things
Store store = this.session.getStore(protocol);
Folder folder = store.getFolder("INBOX");
folder.open(Folder.READ_WRITE);
Message[] newMessages = folder.getMessages();
for (Message newMessage : newMessages) {
  Object o = newMessage.getContent();
  System.out(o.toString()); // should write "HELLO", but instead it parses whole message (only on NON SSL MODE!)
}

//编辑:添加调试信息//编辑2:调试信息现在包含使用{ CONTENT_INFO、标志、信封}的抓取文件夹的详细信息

代码语言:javascript
复制
DEBUG: getProvider() returning javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc]
DEBUG: mail.imap.fetchsize: 16384
DEBUG: protocolConnect returning false, host=127.0.0.1, user=and@127.0.0.1, password=<null>
* OK IMAPrev1
A0 CAPABILITY
* CAPABILITY IMAP4 IMAP4rev1 CHILDREN IDLE QUOTA SORT ACL NAMESPACE RIGHTS=texk
A0 OK CAPABILITY completed
DEBUG: protocolConnect login, host=127.0.0.1, user=and@127.0.0.1, password=<non-null>
A1 LOGIN and@127.0.0.1 password
A1 OK LOGIN completed
DEBUG: connection available -- size: 1
A2 SELECT INBOX
* 1 EXISTS
* 0 RECENT
* FLAGS (\Deleted \Seen \Draft \Answered \Flagged)
* OK [UIDVALIDITY 1378802425] current uidvalidity
* OK [UNSEEN 50167] unseen messages
* OK [UIDNEXT 50168] next uid
* OK [PERMANENTFLAGS (\Deleted \Seen \Draft \Answered \Flagged)] limited
A2 OK [READ-WRITE] SELECT completed
A3 SEARCH UNSEEN ALL
* SEARCH 1
A3 OK Search completed
A4 FETCH 1 (BODYSTRUCTURE)
* 1 FETCH (UID 50167 BODYSTRUCTURE ("TEXT" "PLAIN" ("CHARSET" "UTF-8") NIL "test" "7bit" 7 2))
A4 OK FETCH completed
A5 FETCH 1 (BODY[TEXT]<0.7>)
* 1 FETCH (UID 50167 ENVELOPE ("Tue, 28 Jan 2014 15:08:59 +0100" "test" (("and@127.0.0.1" NIL "and" "127.0.0.1")) (("and@127.0.0.1" NIL "and" "127.0.0.1")) (("and@127.0.0.1" NIL "and" "127.0.0.1")) (("and@127.0.0.1" NIL "and" "127.0.0.1")) NIL NIL NIL "<52E7B9FB.2030409@127.0.0.1>") BODY[HEADER] {479}
Return-Path: and@127.0.0.1
Received: from [127.0.0.1] (localhost [127.0.0.1]) by A-PC ; Tue, 28 Jan 2014 15:08:59 +0100
Message-ID: <52E7B9FB.2030409@127.0.0.1>
Date: Tue, 28 Jan 2014 15:08:59 +0100
From: "and@127.0.0.1" <and@127.0.0.1>
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130509 Thunderbird/17.0.6
MIME-Version: 1.0
To: and@127.0.0.1
Subject: test
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit

 BODY[TEXT]<0> {7}
HELLO
)
A5 OK FETCH completed
A6 FETCH 1 (FLAGS)
* 1 FETCH (UID 50167 FLAGS (\Seen))
A6 OK FETCH completed
A7 FETCH 1 (ENVELOPE INTERNALDATE RFC822.SIZE FLAGS BODYSTRUCTURE)
* 1 FETCH (UID 50167 RFC822.SIZE 462 FLAGS (\Seen) INTERNALDATE "28-Jan-2014 15:08:59 +0100" ENVELOPE ("Tue, 28 Jan 2014 15:08:59 +0100" "test" (("and@127.0.0.1" NIL "and" "127.0.0.1")) (("and@127.0.0.1" NIL "and" "127.0.0.1")) (("and@127.0.0.1" NIL "and" "127.0.0.1")) (("and@127.0.0.1" NIL "and" "127.0.0.1")) NIL NIL NIL "<52E7B9FB.2030409@127.0.0.1>") BODYSTRUCTURE ("TEXT" "PLAIN" ("CHARSET" "UTF-8") NIL "test" "7bit" 7 2))
A7 OK FETCH completed
A8 STORE 1 +FLAGS (\Seen)
* 1 FETCH (FLAGS (\Seen) UID 50167)
A8 OK STORE completed
A9 CLOSE
A9 OK CLOSE completed
DEBUG: added an Authenticated connection -- size: 1
IMAP DEBUG: IMAPProtocol noop
A10 NOOP
A10 OK NOOP completed
DEBUG: connection available -- size: 1
A11 SELECT INBOX
* 1 EXISTS
* 0 RECENT
* FLAGS (\Deleted \Seen \Draft \Answered \Flagged)
* OK [UIDVALIDITY 1378802425] current uidvalidity
* OK [UIDNEXT 50168] next uid
* OK [PERMANENTFLAGS (\Deleted \Seen \Draft \Answered \Flagged)] limited
A11 OK [READ-WRITE] SELECT completed
A12 SEARCH UNSEEN ALL
* SEARCH
A12 OK Search completed
A13 CLOSE
A13 OK CLOSE completed
DEBUG: added an Authenticated connection -- size: 1
IMAP DEBUG: IMAPProtocol noop
A14 NOOP
A14 OK NOOP completed
A15 LOGOUT
* BYE Have a nice day
A15 OK Logout completed
DEBUG: IMAPStore connection dead
DEBUG: IMAPStore cleanup, force false
DEBUG: IMAPStore cleanup done

服务器是hMailServer,在127.0.0.1上运行,启用SSL和NONSSL端口。

看来,我只收到邮件的邮件头,但没有收到身体。

谢谢你的建议,祝你今天愉快!

EN

回答 1

Stack Overflow用户

回答已采纳

发布于 2014-02-03 09:55:33

我解决了问题。我遇到的错误被链接到“无法加载BODYSTRUCTURE”错误(下面的链接-阅读有关IMAP复杂性)。

https://java.net/projects/javamail/pages/Exchange

http://www.oracle.com/technetwork/java/javamail/faq/index.html#imapserverbug

要获得正确的body消息,所要做的就是使用MimeMessage构造函数创建消息的副本。

代码语言:javascript
复制
// newMessages - it is array of messages from the mail inbox
// create copy of the message using MimeMessage constructor
MimeMessage message = new MimeMessage(newMessages[0]); // without it, the content was as in my first post
// get content from the mssage
Object messageContent = message.getContent();
// output it as a string
System.out.println(messageContent.toString());

问题解决了,现在我得到了我想要的和应该得到的。剩下的唯一的事情是,为什么SSL和NONSSL消息内容有区别?可能是抗病毒问题?

谢谢你的帮助和关心。

祝你今天过得愉快。

票数 1
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页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/21284332

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