參考：
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;
////////////////////////////////////////////////////////////////////////
主函式
public static void parseMessage(Message ... messages) throws MessagingException, IOException {
if (messages == null || messages.length < 1)
throw new MessagingException("未找到要決議的郵件!");
// 決議所有郵件
for (int i = 0, count = messages.length; i < count; i++) {
MimeMessage msg = (MimeMessage) messages[i];
msg.setFlag(Flags.Flag.SEEN, true);
System.out.println("------------------決議第" + msg.getMessageNumber() + "封郵件-------------------- ");
System.out.println("主題: " + getSubject(msg));
System.out.println("發件人: " + getFrom(msg));
System.out.println("收件人：" + getReceiveAddress(msg, null));
System.out.println("發送時間：" + getSentDate(msg, null));
System.out.println("是否已讀：" + isSeen(msg));
System.out.println("郵件優先級：" + getPriority(msg));
System.out.println("是否需要回執：" + isReplySign(msg));
System.out.println("郵件大小：" + msg.getSize() * 1024 + "kb");
/*執行到這一步出錯了，*/
boolean isContainerAttachment = isContainAttachment(msg);
System.out.println("是否包含附件：" + isContainerAttachment);
if (isContainerAttachment) {
saveAttachment(msg, "/storage/0D09-0B07/Download/"+msg.getSubject() + "_"); //保存附件
}
////////////////////////////////////////////////////////////////////////
被呼叫函式 isContainAttachment包含一個引數part
public static boolean isContainAttachment(Part part) throws MessagingException, IOException {
boolean flag = false;
if (part.isMimeType("multipart/*")) {
MimeMultipart multipart = (MimeMultipart) part.getContent();
int partCount = multipart.getCount();
for (int i = 0; i < partCount; i++) {
BodyPart bodyPart = multipart.getBodyPart(i);
String disp = bodyPart.getDisposition();
if (disp != null && (disp.equalsIgnoreCase(Part.ATTACHMENT) || disp.equalsIgnoreCase(Part.INLINE))) {
flag = true;
} else if (bodyPart.isMimeType("multipart/*")) {
flag = isContainAttachment(bodyPart);
} else {
String contentType = bodyPart.getContentType();
if (contentType.indexOf("application") != -1) {
flag = true;
}
if (contentType.indexOf("name") != -1) {
flag = true;
}
}
if (flag) break;
}
} else if (part.isMimeType("message/rfc822")) {
flag = isContainAttachment((Part)part.getContent());
}
return flag;
}
/System.out: ------------------決議第1封郵件--------------------
列印資訊
I/System.out: 主題: this is an english mail for test
發件人: xxx <[email protected]>
I/System.out: 收件人：240xxx462 <[email protected]>
I/System.out: 發送時間：2020年10月16日 Fri 00:32
是否已讀：true
I/System.out: 郵件優先級：普通
I/System.out: 是否需要回執：false
郵件大小：2423808kb
W/m.example.emai: Rejecting class com.sun.mail.handlers.multipart_mixed that attempts to sub-type erroneous class com.sun.mail.handlers.handler_base in /data/app/~~1vEvtEZuOFpwEYZmeWZG-g==/com.example.email-Pjja9LiRaQz5kqfN5tTA3w==/base.apk
E/AndroidRuntime: FATAL EXCEPTION: Thread-2
Process: com.example.email, PID: 21568
java.lang.VerifyError: Rejecting class com.sun.mail.handlers.multipart_mixed that attempts to sub-type erroneous class com.sun.mail.handlers.handler_base (declaration of 'com.sun.mail.handlers.multipart_mixed' appears in /data/app/~~1vEvtEZuOFpwEYZmeWZG-g==/com.example.email-Pjja9LiRaQz5kqfN5tTA3w==/base.apk)
at java.lang.Class.newInstance(Native Method)
at javax.activation.MailcapCommandMap.getDataContentHandler(MailcapCommandMap.java:631)
at javax.activation.MailcapCommandMap.createDataContentHandler(MailcapCommandMap.java:603)
at javax.activation.CommandMap.createDataContentHandler(CommandMap.java:235)
at javax.activation.DataHandler.getDataContentHandler(DataHandler.java:624)
at javax.activation.DataHandler.getContent(DataHandler.java:551)
at javax.mail.internet.MimeMessage.getContent(MimeMessage.java:1502)
at com.example.email.mail.IMAPReceiveMailTest.getMailTextContent(IMAPReceiveMailTest.java:311)
at com.example.email.mail.IMAPReceiveMailTest.parseMessage(IMAPReceiveMailTest.java:123)
at com.example.email.mail.IMAPReceiveMailTest.IMAP_recv(IMAPReceiveMailTest.java:79)
at com.example.email.MainActivity$4.run(MainActivity.java:141)
Caused by: java.lang.VerifyError: Verifier rejected class com.sun.mail.handlers.handler_base: java.awt.datatransfer.DataFlavor[] com.sun.mail.handlers.handler_base.getTransferDataFlavors() failed to verify: java.awt.datatransfer.DataFlavor[] com.sun.mail.handlers.handler_base.getTransferDataFlavors(): [0x4] can't resolve returned type 'Unresolved Reference: java.awt.datatransfer.DataFlavor[]' or 'Reference: javax.activation.ActivationDataFlavor[]' (declaration of 'com.sun.mail.handlers.handler_base' appears in /data/app/~~1vEvtEZuOFpwEYZmeWZG-g==/com.example.email-Pjja9LiRaQz5kqfN5tTA3w==/base.apk)
at java.lang.Class.newInstance(Native Method)
at javax.activation.MailcapCommandMap.getDataContentHandler(MailcapCommandMap.java:631)
at javax.activation.MailcapCommandMap.createDataContentHandler(MailcapCommandMap.java:603)
at javax.activation.CommandMap.createDataContentHandler(CommandMap.java:235)
at javax.activation.DataHandler.getDataContentHandler(DataHandler.java:624)
at javax.activation.DataHandler.getContent(DataHandler.java:551)
at javax.mail.internet.MimeMessage.getContent(MimeMessage.java:1502)
at com.example.email.mail.IMAPReceiveMailTest.getMailTextContent(IMAPReceiveMailTest.java:311)
at com.example.email.mail.IMAPReceiveMailTest.parseMessage(IMAPReceiveMailTest.java:123)
at com.example.email.mail.IMAPReceiveMailTest.IMAP_recv(IMAPReceiveMailTest.java:79)
at com.example.email.MainActivity$4.run(MainActivity.java:141)
I/Process: Sending signal. PID: 21568 SIG: 9
高手幫我分析一下錯在那些地方？
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