import java.util.*;
import java.io.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
/**
* <p>Title: 使用javamail發送郵件</p>
* <p>Description: 演示如何使用javamail包發送電子郵件。這個實例可發送多附件</p>
* <p>Copyright: Copyright (c) 2003</p>
* <p>Filename: Mail.java</p>
* @version 1.0
*/
public class Mail {
String to = "";//收件人
String from = "";//發件人
String host = "";//smtp主機
String username = "" ;
String password = "" ;
String filename = "";//附件文件名
String subject = "";//郵件主題
String content = "";//郵件正文
Vector file = new Vector();//附件文件集合
/**
*<br>方法說明:默認構造器
*<br>輸入參數:
*<br>返回類型:
*/
public Mail(){
}
/**
*<br>方法說明:構造器,提供直接的參數傳入
*<br>輸入參數:
*<br>返回類型:
*/
public Mail(String to,String from,String smtpServer,String username,String password,String subject,String content){
this.to = to;
this.from = from;
this.host = smtpServer;
this.username = username;
this.password = password;
this.subject = subject;
this.content = content;
}
/**
*<br>方法說明:設置郵件服務器地址
*<br>輸入參數:String host 郵件服務器地址名稱
*<br>返回類型:
*/
public void setHost(String host){
this.host = host;
}
/**
*<br>方法說明:設置登錄服務器校驗密碼
*<br>輸入參數:
*<br>返回類型:
*/
public void setPassWord(String pwd){
this.password = pwd;
}
/**
*<br>方法說明:設置登錄服務器校驗用戶
*<br>輸入參數:
*<br>返回類型:
*/
public void setUserName(String usn){
this.username = usn;
}
/**
*<br>方法說明:設置郵件發送目的郵箱
*<br>輸入參數:
*<br>返回類型:
*/
public void setTo(String to){
this.to = to;
}
/**
*<br>方法說明:設置郵件發送源郵箱
*<br>輸入參數:
*<br>返回類型:
*/
public void setFrom(String from){
this.from = from;
}
/**
*<br>方法說明:設置郵件主題
*<br>輸入參數:
*<br>返回類型:
*/
public void setSubject(String subject){
this.subject = subject;
}
/**
*<br>方法說明:設置郵件內容
*<br>輸入參數:
*<br>返回類型:
*/
public void setContent(String content){
this.content = content;
}
/**
*<br>方法說明:把主題轉換為中文
*<br>輸入參數:String strText
*<br>返回類型:
*/
public String transferChinese(String strText){
try{
strText = MimeUtility.encodeText(new String(strText.getBytes(), "GB2312"), "GB2312", "B");
}catch(Exception e){
e.printStackTrace();
}
return strText;
}
/**
*<br>方法說明:往附件組合中添加附件
*<br>輸入參數:
*<br>返回類型:
*/
public void attachfile(String fname){
file.addElement(fname);
}
/**
*<br>方法說明:發送郵件
*<br>輸入參數:
*<br>返回類型:boolean 成功為true,反之為false
*/
public boolean sendMail(){
//構造mail session
Properties props = System.getProperties();
props.put("mail.smtp.host",host);
props.put("mail.smtp.auth","true");
Session session=Session.getDefaultInstance(props, new Authenticator(){
public PasswordAuthentication getPasswordAuthentication(){
return new PasswordAuthentication(username,password);
}
});
try {
//構造MimeMessage 並設定基本的值
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(from));
InternetAddress[] address={new InternetAddress(to)};
msg.setRecipients(Message.RecipientType.TO,address);
subject = transferChinese(subject);
msg.setSubject(subject);
//構造Multipart
Multipart mp = new MimeMultipart();
//向Multipart添加正文
MimeBodyPart mbpContent = new MimeBodyPart();
mbpContent.setText(content);
//向MimeMessage添加(Multipart代表正文)
mp.addBodyPart(mbpContent);
//向Multipart添加附件
Enumeration efile=file.elements();
while(efile.hasMoreElements()){
MimeBodyPart mbpFile = new MimeBodyPart();
filename=efile.nextElement().toString();
FileDataSource fds = new FileDataSource(filename);
mbpFile.setDataHandler(new DataHandler(fds));
mbpFile.setFileName(fds.getName());
//向MimeMessage添加(Multipart代表附件)
mp.addBodyPart(mbpFile);
}
file.removeAllElements();
//向Multipart添加MimeMessage
msg.setContent(mp);
msg.setSentDate(new Date());
//發送郵件
Transport.send(msg);
} catch (MessagingException mex) {
mex.printStackTrace();
Exception ex = null;
if ((ex=mex.getNextException())!=null){
ex.printStackTrace();
}
return false;
}
return true;
}
/**
*<br>方法說明:主方法,用於測試
*<br>輸入參數:
*<br>返回類型:
*/
public static void main(String[] args){
Mail sendmail = new Mail();
sendmail.setHost("smtp.sohu.com");
sendmail.setUserName("du_jiang");
sendmail.setPassWord("31415926");
sendmail.setTo("[email protected]");
sendmail.setFrom("[email protected]");
sendmail.setSubject("你好,這是測試!");
sendmail.setContent("你好這是一個帶多附件的測試!");
//Mail sendmail = new Mail("[email protected]","[email protected]","smtp.sohu.com","du_jiang","31415926","你好","胃,你好嗎?");
sendmail.attachfile("c:\\test.txt");
sendmail.attachfile("DND.jar");
sendmail.sendMail();
}
}//end