javamail發送附件

3. javaMail實現郵件轉發，同時轉發的郵件應該包含附件，怎麼實現

看去吧
http://www.blogjava.net/stevenjohn/archive/2011/10/18/361492.html
http://www.blogjava.net/action/archive/2006/04/24/42822.html

4. Javamail發送附件，為什麼將附件內容直接顯示在郵件正文中

DataSource source = new FileDataSource(new File("E:\\path.txt"));
body.setDataHandler(new DataHandler(source));
你好，復在後面在加上附製件文件名的設置：
body.setFileName(MimeUtility.encodeText(文件名));//設置附件文件名
例如：
body.setFileName(MimeUtility.encodeText(new File("E:\\path.txt").getName()));

ps：郵箱會根據附件的MIME類型自動打開附件，設置一個文件名可以將附件流控製成文件，不讓郵箱自動打開

5. java sendmail 怎麼發送郵件帶超大附件，求大神幫幫

和伺服器有關的，伺服器如果拒絕就沒法了 ，，，，還和連接時間長短的限制有關

~~~~~~

6. 怎麼用java發送帶附件的郵件代碼詳解

packageemail;
importjava.io.BufferedReader;
importjava.io.File;
importjava.io.FileInputStream;
importjava.io.FileNotFoundException;
importjava.io.IOException;
importjava.io.InputStream;
importjava.io.InputStreamReader;
importjava.io.PrintWriter;
importjava.io.UnsupportedEncodingException;
importjava.net.Socket;
importjava.nio.charset.Charset;
importjava.text.SimpleDateFormat;
importjava.util.ArrayList;
importjava.util.Date;
importjava.util.HashMap;
importjava.util.List;
importjava.util.Map;
importsun.misc.BASE64Encoder;
publicclassMail{
privatestaticfinalStringLINE_END="
";
privatebooleanisDebug=true;
=true;
privateStringhost;
privateStringfrom;
privateList<String>to;
privateList<String>cc;
privateList<String>bcc;
privateStringsubject;
privateStringuser;
privateStringpassword;
privateStringcontentType;
privateStringboundary;
privateStringboundaryNextPart;
;
privateStringcharset;
;
privateStringcontent;
;
;
privateList<MailPart>partSet;
privatestaticMap<String,String>contentTypeMap;
static{
//MIMEMediaTypes
contentTypeMap=newHashMap<String,String>();
contentTypeMap.put("xls","application/vnd.ms-excel");
contentTypeMap.put("xlsx","application/vnd.ms-excel");
contentTypeMap.put("xlsm","application/vnd.ms-excel");
contentTypeMap.put("xlsb","application/vnd.ms-excel");
contentTypeMap.put("doc","application/msword");
contentTypeMap.put("dot","application/msword");
contentTypeMap.put("docx","application/msword");
contentTypeMap.put("docm","application/msword");
contentTypeMap.put("dotm","application/msword");
}
{
publicMailPart(){
}
}
publicMail(){
defaultAttachmentContentType="application/octet-stream";
simpleDatePattern="yyyy-MM-ddHH:mm:ss";
boundary="--=_NextPart_zlz_3907_"+System.currentTimeMillis();
boundaryNextPart="--"+boundary;
contentTransferEncoding="base64";
contentType="multipart/alternative";
charset=Charset.defaultCharset().name();
partSet=newArrayList<MailPart>();
to=newArrayList<String>();
cc=newArrayList<String>();
bcc=newArrayList<String>();
}
(StringfileName){
Stringret=null;
if(null!=fileName){
intflag=fileName.lastIndexOf(".");
if(0<=flag&&flag<fileName.length()-1){
fileName=fileName.substring(flag+1);
}
ret=contentTypeMap.get(fileName);
}
if(null==ret){
ret=defaultAttachmentContentType;
}
returnret;
}

privateStringtoBase64(Stringstr,Stringcharset){
if(null!=str){
try{
returntoBase64(str.getBytes(charset));
}catch(UnsupportedEncodingExceptione){
e.printStackTrace();
}
}
return"";
}
privateStringtoBase64(byte[]bs){
returnnewBASE64Encoder().encode(bs);
}
privateStringtoBase64(Stringstr){
returntoBase64(str,Charset.defaultCharset().name());
}
privateStringgetAllParts(){
intpartCount=partSet.size();
StringBuildersbd=newStringBuilder(LINE_END);
for(inti=partCount-1;i>=0;i--){
Mailattachment=partSet.get(i);
StringattachmentContent=attachment.getContent();
if(null!=attachmentContent&&0<attachmentContent.length()){
sbd.append(getBoundaryNextPart()).append(LINE_END);
sbd.append("Content-Type:");
sbd.append(attachment.getContentType());
sbd.append(LINE_END);
sbd.append("Content-Transfer-Encoding:");
sbd.append(attachment.getContentTransferEncoding());
sbd.append(LINE_END);
if(i!=partCount-1){
sbd.append("Content-Disposition:");
sbd.append(attachment.getContentDisposition());
sbd.append(LINE_END);
}
sbd.append(LINE_END);
sbd.append(attachment.getContent());
sbd.append(LINE_END);
}
}
sbd.append(LINE_END);
sbd.append(LINE_END);
partSet.clear();
returnsbd.toString();
}
privatevoidaddContent(){
if(null!=content){
MailPartpart=newMailPart();
part.setContent(toBase64(content));
part.setContentType("text/plain;charset=""+charset+""");
partSet.add(part);
}
}
privateStringlistToMailString(List<String>mailAddressList){
StringBuildersbd=newStringBuilder();
if(null!=mailAddressList){
intlistSize=mailAddressList.size();
for(inti=0;i<listSize;i++){
if(0!=i){
sbd.append(";");
}
sbd.append("<").append(mailAddressList.get(i)).append(">");
}
}
returnsbd.toString();
}
privateList<String>getrecipient(){
List<String>list=newArrayList<String>();
list.addAll(to);
list.addAll(cc);
list.addAll(bcc);
returnlist;
}
publicvoidaddAttachment(StringfilePath){
addAttachment(filePath,null);
}
publicvoidaddTo(StringmailAddress){
this.to.add(mailAddress);
}
publicvoidaddCc(StringmailAddress){
this.cc.add(mailAddress);
}
publicvoidaddBcc(StringmailAddress){
this.bcc.add(mailAddress);
}
publicvoidaddAttachment(StringfilePath,Stringcharset){
if(null!=filePath&&filePath.length()>0){
Filefile=newFile(filePath);
try{
addAttachment(file.getName(),newFileInputStream(file),
charset);
}catch(FileNotFoundExceptione){
System.out.println("錯誤："+e.getMessage());
System.exit(1);
}
}
}

7. javamail 附件有大小限制嗎，我發了50m的附件發送成功了，發送60m就不行了，請問在哪設置，小弟感激不盡

通常是伺服器的限制，如果是web程序可以看看是否發送等待中連接超時了

8. javamail如何收附件

參考代碼如下：
import javax.mail.*;
import java.util.*;
import java.io.*;

public class ReceiveMail {

//處理任何一種郵件都需要的方法
private void handle(Message msg) throws Exception {
System.out.println("郵件主題:" + msg.getSubject());
System.out.println("郵件作者:" + msg.getFrom()[0].toString());
System.out.println("發送日期:" + msg.getSentDate());
}

//處理文本郵件
private void handleText(Message msg) throws Exception {
this.handle(msg);
System.out.println("郵件內容:"+msg.getContent());
}

//處理Multipart郵件，包括了保存附件的功能
private static void handleMultipart(Message msg) throws Exception {
String disposition;
BodyPart part;

Multipart mp = (Multipart) msg.getContent();
//Miltipart的數量,用於除了多個part,比如多個附件
int mpCount = mp.getCount();
for (int m = 0; m < mpCount; m++) {
this.handle(msg);
part = mp.getBodyPart(m);
disposition = part.getDisposition();
//判斷是否有附件
if (disposition != null && disposition.equals(Part.ATTACHMENT))
{
//這個方法負責保存附件
saveAttach(part);
} else {
//不是附件，就只顯示文本內容
System.out.println(part.getContent());
}
}
}

private static void saveAttach(BodyPart part) throws Exception {
//得到未經處理的附件名字
String temp = part.getFileName();
//除去發送郵件時，對中文附件名編碼的頭和尾，得到正確的附件名
//（請參考發送郵件程序SendMail的附件名編碼部分）
String s = temp.substring(8, temp.indexOf("?="));
//文件名經過了base64編碼,下面是解碼
String fileName = base64Decoder(s);
System.out.println("有附件:" + fileName);

InputStream in = part.getInputStream();
FileOutputStream writer = new FileOutputStream(new File(
"保存附件的本地路徑"+ "\\"+fileName));
byte[] content = new byte[255];
int read = 0;
while ((read = in.read(content)) != -1) {
writer.write(content);
}
writer.close();
in.close();
}
//base64解碼
private static String base64Decoder(String s) throws Exception {
sun.misc.BASE64Decoder decoder = new sun.misc.BASE64Decoder();
byte[] b = decoder.decodeBuffer(s);
return (new String(b));
}

public static void receive(String receiverMailBoxAddress, String username,String password) {
//本人用的是yahoo郵箱，故接受郵件使用yahoo的pop3郵件伺服器
String host = "pop.mail.yahoo.com.cn";
try {
//連接到郵件伺服器並獲得郵件
Properties prop = new Properties();
prop.put("mail.pop3.host", host);
Session session = Session.getDefaultInstance(prop);
Store store = session.getStore("pop3");
store.connect(host, username, password);

Folder inbox = store.getDefaultFolder().getFolder("INBOX");
//設置inbox對象屬性為可讀寫，這樣可以控制在讀完郵件後直接刪除該附件
inbox.open(Folder.READ_WRITE);

Message[] msg = inbox.getMessages();

FetchProfile profile = new FetchProfile();
profile.add(FetchProfile.Item.ENVELOPE);
inbox.fetch(msg, profile);

for (int i = 0; i < msg.length; i++) {
//標記此郵件的flag標志對象的DELETED位為true,可以在讀完郵件後直接刪除該附件，具體執行時間是在調用
//inbox.close()方法的時候
msg[i].setFlag(Flags.Flag.DELETED, true);
handleMultipart(msg[i]);
System.out.println("****************************");
}
if (inbox != null) {
//參數為true表明閱讀完此郵件後將其刪除，更多的屬性請參考mail.jar的API
inbox.close(true);
}
if (store != null) {
store.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}

9. JavaMail 發送郵件附件的時候，如何把程序中讀出來的IO流直接發出去，而不是保存成臨時文件

這個需要根據你實際的代碼進行改造啊，貼上代碼

10. 你好，javamail發送郵件時在頁面上得到附件路徑問題你最終解決了嗎我不知道該怎麼獲得附件的路徑

沒明白，是路徑亂碼嗎？ 是的話，就需要加密 base64，查一下關於javamail base64（好像是encode編碼）的就好了