我有一个使用 java 邮件获取附件的 java 代码，我可以下载附件并插入到特定文件夹中。但问题是当我从黑莓手机发送带有附件的电子邮件时，我收到如下错误下载附件。
ERROR [STDERR] java.io.FileNotFoundException: E:\CCjboss\server\sor
emicc\deploy\eis.ear\CC.war\attachment\=?utf-8?B?MS5qcGc= (The filename, directo
ry name, or volume label syntax is incorrect)
07:31:10,739 ERROR [STDERR] at java.io.FileOutputStream.open(Native Method)
07:31:10,741 ERROR [STDERR] at java.io.FileOutputStream.<init>(FileOutputStr
eam.java:179)
07:31:10,744 ERROR [STDERR] at java.io.FileOutputStream.<init>(FileOutputStr
eam.java:131)
07:31:10,747 ERROR [STDERR] at com.infosense.eis.webapp.util.Mobilekiran.sav
eFile(Mobilekiran.java:230)
07:31:10,750 ERROR [STDERR] at com.infosense.eis.webapp.util.Mobilekiran.Mob
ileTimeCheckTask(Mobilekiran.java:179)
07:31:10,753 ERROR [STDERR] at com.infosense.eis.webapp.util.Mobilekiran.run
(Mobilekiran.java:38)
07:31:10,756 ERROR [STDERR] at java.util.TimerThread.mainLoop(Timer.java:432
)
07:31:10,759 ERROR [STDERR] at java.util.TimerThread.run(Timer.java:382)
我认为它有一些编码和解码问题。附件被编码或其他东西
=?utf-8?B?MS5qcGc=
以下是接收带有附件的电子邮件的代码
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import java.io.*;
import java.util.*;
import java.lang.String;
import javax.mail.internet.*;
/**
*
* @author Administrator
*/
public class Mobilekiran extends TimerTask{
List emattach=new ArrayList();
List emails = new ArrayList();
List attachments=new ArrayList();
String emailbody=null;
String bodypart=null;
String s1=null;
String fromaddress=null;
String subject=null;
String body=null;
String date1=null;
String filename=null;
int filesize=0;
public void run() {
MobileTimeCheckTask();
}
private void MobileTimeCheckTask(){
String host = "mail.**********.com";
String username = "*****@****.com";
String password = "*******";
String downloadDir = "E:/CCjboss/server/soremicc/deploy/eis.ear/CC.war/attachment";
String provider = "pop3";
try{
// Create empty properties
Properties props = new Properties();
// Get the session
Session session = Session.getInstance(props, null);
// Get the store
Store store = session.getStore("pop3");
store.connect(host, username, password);
// Get folder
Folder folder = store.getFolder("INBOX");
folder.open(Folder.READ_WRITE);
Message messages[] = folder.getMessages();
for (int i = 0; i < messages.length; i++) {
// from
Address[] toaddress1=messages[i].getAllRecipients();
String toaddress=toaddress1[0].toString();
System.out.println("to address"+toaddress1[0].toString());
emails.add(0,messages[i].getFrom()[0].toString());
s1=messages[i].getFrom()[0].toString();
InternetAddress address = new InternetAddress(s1);
fromaddress=address.getAddress();
// subject
emails.add(1,messages[i].getSubject());
subject=messages[i].getSubject();
// received date
if (messages[i].getReceivedDate() != null) {
emails.add(2,messages[i].getReceivedDate().toString());
date1=messages[i].getReceivedDate().toString();
// emattach.add(0,emails);
} else {
emails.add(2,new Date());
date1=(new Date()).toString();
// emattach.add(0,emails);
}
// body and attachments
//email.body = "";
Object content = messages[i].getContent();
if (content instanceof java.lang.String) {
emails.add(3,(String) content);
} else if (content instanceof Multipart) {
Multipart mp = (Multipart) content;
boolean d=true;
for (int j = 0; j < mp.getCount(); j++) {
Part part = mp.getBodyPart(j);
BodyPart bp=mp.getBodyPart(j);
Object o2 = bp.getContent();
if (o2 instanceof String) {
System.out.println("**This is a String BodyPart**");
System.out.println("bodypart "+(String)o2);
if(d)
emails.add(3,(String)o2);
body=(String)o2;
d=false;
}
String disposition = part.getDisposition();
if (disposition == null) {
MimeBodyPart mbp = (MimeBodyPart) part;
if (mbp.isMimeType("text/plain")) {
// Plain
emailbody += (String) mbp.getContent();
emails.add(3,emailbody);
}
} else if ((disposition != null) && (disposition.equals(Part.ATTACHMENT) || disposition .equals(Part.INLINE))) {
// Check if plain
MimeBodyPart mbp = (MimeBodyPart) part;
if (mbp.isMimeType("text/plain")) {
emailbody += (String) mbp.getContent();
emails.add(3,emailbody);
} else {
//EmailAttachment attachment = new EmailAttachment();
System.out.println("the filename i required"+part.getFileName().toString());
attachments.add(0,Mobilekiran.decodeName(part.getFileName()));
filename=decodeName(part.getFileName());
File savedir = new File(downloadDir);
savedir.mkdirs();
// File savefile = File.createTempFile( "emailattach", ".atch", savedir);
File savefile = new File(downloadDir,attachments.get(0).toString());
attachments.add(1,savefile.getAbsolutePath());
attachments.add(2,new Integer(Mobilekiran.saveFile(savefile, part)));
filesize=saveFile(savefile,part);
emattach.add(0,attachments);
}
}
} // end of multipart for loop
emattach.add(0,emails);
System.out.println(emattach);
emattach.clear();
System.out.println(emattach);
messages[i].setFlag(Flags.Flag.DELETED , true);
} // end messages for loop
// Finally delete the message from the server.
}
// Close connection
folder.close(true); // true tells the mail server to expunge deleted messages
store.close();
}catch(Exception e){
e.printStackTrace();
}
}
private static String decodeName(String name) throws Exception {
if (name == null || name.length() == 0) {
return "unknown";
}
String ret = java.net.URLDecoder.decode(name, "UTF-8");
// also check for a few other things in the string:
ret = ret.replaceAll("=\\?utf-8\\?q\\?", "");
ret = ret.replaceAll("\\?=", "");
ret = ret.replaceAll("=20", " ");
return ret;
}
private static int saveFile(File saveFile, Part part) throws Exception {
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream(saveFile));
byte[] buff = new byte[2048];
InputStream is = part.getInputStream();
int ret = 0, count = 0;
while ((ret = is.read(buff)) > 0) {
bos.write(buff, 0, ret);
count += ret;
}
bos.close();
is.close();
return count;
}
}
请帮助我解决上述问题。