java smtp Mail 발송

//주석 처리된 부분을 지우면, 저장된 파일을 내용으로 메일 전송 가능!

package unic.mail; //import java.io.*; import java.util.*; import javax.mail.*; import javax.mail.internet.*; public class SendMail {  private static SendMail instance = new SendMail();  public static SendMail getInstance() {   return instance;  }    /**   * @param       host      메일서버주소   * @param       from      보내는 사람   * @param       to        받는사람 - ","로 구분된 메일 주소   * @param       subject   제목   * @param       mailtext  내용   * @param       attached  첨부파일   * @result      boolean   * @exception   javax.mail.internet.AddressException   *              javax.mail.MessagingException   *              sendEmail("localhost", "보내는메일 ", "받는메일",          "메일입니다.","메일내용입니다.")   */  public int sendEmailMember(String user_name , String user_mail , String subject, String contents)      throws javax.mail.internet.AddressException, javax.mail.MessagingException,      java.io.UnsupportedEncodingException, java.io.IOException ,java.net.MalformedURLException{                  int nResult = 0;   try{    System.out.println(user_name+"/"+user_mail);    String host = "localhost";    String senderemail = "---------@-----------.co.kr";    String _user_name = user_name;          String email = user_mail; //         FileReader fr = new FileReader( new File( "메일내용.html" ) ); //         int c; //         String s = new String(); //         c = fr.read();//delete //         while(c!= -1){ //          s = s + (char)c; //             c = fr.read();//delete //         } //         fr.close();          //메일내용중 동적으로 바꿔야 하는부분          contents = contents.replace("@USER_NAME", _user_name);          contents= contents.replace("../", "http://----------/");          System.out.println(contents);          Properties props = new Properties();          props.put("mail.smtp.host", host);                       Session session = Session.getDefaultInstance(props, null);             Multipart mp = new MimeMultipart();             // create a message             MimeMessage msg = new MimeMessage(session);             msg.setFrom(new InternetAddress(senderemail));             // 받는사람             InternetAddress[] toAddress = InternetAddress.parse(email);             msg.setRecipients(Message.RecipientType.TO, toAddress);             // 제목             msg.setSubject(subject, "UTF-8");             // 내용          MimeBodyPart mbp1 = new MimeBodyPart();          mbp1.setContent(contents, "text/html; charset=UTF-8");          mp.addBodyPart(mbp1);          // 메시지 add          msg.setContent(mp);          // header 에 날짜 삽입          msg.setSentDate(new Date());          // send the message          Transport.send(msg);          // 메일 전송 성공          nResult = 1;   } catch(javax.mail.internet.AddressException ae) {    ae.printStackTrace();    nResult = -1;   } catch(javax.mail.MessagingException me) {       me.printStackTrace();       nResult = -2; //  } catch(java.io.UnsupportedEncodingException ue) { //      ue.printStackTrace(); //      nResult = -3; //  } catch(java.net.MalformedURLException e) { //      e.printStackTrace(); //      nResult = -4; //  } catch(java.io.IOException ie) { //      ie.printStackTrace(); //      nResult = -5;   } finally {      }      return nResult;  } }

참조 : http://nadangg.tistory.com/12