我正在尝试使用spring集成获得基本的Imapmailreceiver,我偶然发现了一个粘滞文件夹已关闭的异常。 在阅读电子邮件内容时,我不断获得文件夹关闭异常,但我能够正确地获得主题。
非常感谢任何帮助。
1。我的申请背景如下
<int:channel id="emails"/>
<util:properties id="javaMailProperties">
<prop key="mail.imap.socketFactory.class">javax.net.ssl.SSLSocketFactory</prop>
<prop key="mail.imap.socketFactory.fallback">false</prop>
<prop key="mail.store.protocol">imaps</prop>
<prop key="mail.debug">false</prop>
</util:properties>
<int-mail:imap-idle-channel-adapter id="mailAdapter"
store-uri="ACTUALCREDENTIALHERE"
java-mail-properties="javaMailProperties"
channel="emails"
should-delete-messages="true"
auto-startup="false"
should-mark-messages-as-read="true" />
<int:service-activator id="receiveEmail" input-channel="emails" ref="MessageReceiver"/>
<bean id="MessageReceiver" class="org.springframework.integration.mail.imapidle.MessageReceiver" />
</beans>
2。主要APP如下
ApplicationContext ac = new ClassPathXmlApplicationContext("/META-INF/spring/integration/gmail.xml");
ImapIdleChannelAdapter ic=(ImapIdleChannelAdapter)ac
.getBean("mailAdapter");
ic.start();
第3。服务激活器如下
public class MessageReceiver {
public void handle(javax.mail.Message message){
MailToStringTransformer m2s = new MailToStringTransformer();
m2s.setCharset("utf-8");
//payload instanceof MimeMultipart
if (message instanceof MimeMessage) {
try {
System.out.println("inside mimemessagehandler");
// javax.mail.Message mailMessage = (javax.mail.Message) payload;
System.out.println(message.getSubject());
System.out.println(getTextFromMessage(message));
Address[] receipts = message.getAllRecipients();
System.out.println("RECEIPIENTS MAIL ID");
if (receipts != null && receipts.length > 0) {
for (int i = 0; i < receipts.length; i++) {
System.out.println(((InternetAddress) receipts[i]).getAddress());
}
}
System.out.println("FROM MAIL ID");
Address[] froms = message.getFrom();
String email = froms == null ? null
: ((InternetAddress) froms[0]).getAddress();
System.out.println(email);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private static String getTextFromMessage(javax.mail.Message message) throws Exception {
String result = "";
if (message.isMimeType("text/plain")) {
result = message.getContent().toString();
} else if (message.isMimeType("multipart/*")) {
MimeMultipart mimeMultipart = (MimeMultipart) message.getContent();
result = getTextFromMimeMultipart(mimeMultipart);
}
return result;
}
private static String getTextFromMimeMultipart(MimeMultipart mimeMultipart) throws Exception {
String result = "";
int count = mimeMultipart.getCount();
System.out.println("CCC "+count);
for (int i = 0; i < count; i++) {
// mimeMultipart.toString()
BodyPart bodyPart = mimeMultipart.getBodyPart(i);
if (bodyPart.isMimeType("text/plain")) {
result = mimeMultipart.toString();//(String) bodyPart.getContent();
} else if (bodyPart.isMimeType("text/html")) {
String html = (String) bodyPart.getContent();
// result = result + "\n" + org.jsoup.Jsoup.parse(html).text();
} else if (bodyPart.getContent() instanceof MimeMultipart) {
result = result + getTextFromMimeMultipart((MimeMultipart) bodyPart.getContent());
}
}
return result;
}
}
--- EXCEPTION
javax.mail.FolderClosedException
at javax.mail.internet.MimeBodyPart.getContent(MimeBodyPart.java:659)
at org.springframework.integration.mail.imapidle.MessageReceiver.getTextFromMimeMultipart(MessageReceiver.java:101)
at org.springframework.integration.mail.imapidle.MessageReceiver.getTextFromMessage(MessageReceiver.java:83)
at org.springframework.integration.mail.imapidle.MessageReceiver.handle(MessageReceiver.java:41)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
答案 0 :(得分:1)
好吧,如果MimeBodyPart
已经关闭,我们似乎无法从Folder
获取内容。看起来我们在AbstractMailReceiver.receive()
:
}
return converted;
}
else {
return filteredMessages;
}
}
finally {
MailTransportUtils.closeFolder(this.folder, this.shouldDeleteMessages);
}
我们不确定为什么我们会在收到文件后关闭文件夹,但在发送下游文件之前,我建议您尝试使用DefaultMailHeaderMapper
ImapMailReceiver
。在这种情况下,MimeMessage
的内容会在上述org.springframework.messaging.Message
内部转换为AbstractMailReceiver.receive()
:
if (this.headerMapper != null) {
org.springframework.messaging.Message<?>[] converted =
new org.springframework.messaging.Message<?>[filteredMessages.length];
int n = 0;
for (MimeMessage message : filteredMessages) {
Map<String, Object> headers = this.headerMapper.toHeaders(message);
converted[n++] = getMessageBuilderFactory().withPayload(extractContent(message, headers))
.copyHeaders(headers)
.build();
}
return converted;
}
与此同时,请就此事提出JIRA,我们会考虑解决Folder.close()
不一致问题。在我最好的感觉,根本不应该完成或我们应该为最终用户提供它作为标题,让他/她决定何时何地关闭文件夹,如果那样。