In this system, Email subjects are encoded in Q' scheme, a scheme similar to quoted printable’. The format is “=?charset?Q?encoded subject?=”, in our case, the charset is `ISO-8859-15′.
For example, the Email object in this system is as follows:
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importjava.text.SimpleDateFormat; import java.util.Calendar; /** * Email object. * * @author Daoyuan Li */ public class Mail { /** * Sender's Email address */ private String from; /** * Recipient's Email address */ private String to; /** * Email subject */ private String subject; /** * Email message body */ private Stringmessage; /** * Constructor of Mail * @param from Sender's Email address. * @param to Recipient's Email address. * @param subject Email subject. * @param message Email message. */ public Mail(String from, String to, String subject, String message) { this.from = from; this.to = to; this.subject = subject; this.message = message; } /** * Get sender'sEmail address. * @return Sender's Email address. */ public String getFrom() { return this.from; } /** * Get Recipient's Email address. * @return Recipient's Email address. */ public String getTo() { return this.to; } /** * Get Email subject. * @return Email subject. */ public String getSubject() { return this.subject; } /** * Get Email message. * @return Email message. */ public String getMessage() { return this.message; } /** * Set sender's Email address. * @param from Sender's Email address. */ public void setFrom(String from) { this.from = from; } /** * Set Recipient's Email address. * @param to Recipient's Email address. */ public void setTo(String to) { this.to = to; } /** * Set Email subject. * @param subject Email subject. */ public void setSubject(String subject) { this.subject = subject; } /** * Set Email message. * @param message Email message. */ public void setMessage(String message) { this.message = message; } /** * Encode Email into MIMEformat. * @return The MIME encoded Email. */ public String encode() { String FORMAT = "EEE, dd MMM yyyy HH:mm:ss Z"; //String FORMAT = "yyyy-MM-dd HH:mm:ss Z"; Calendar cal = null; cal = Calendar.getInstance(); SimpleDateFormat sdf = new SimpleDateFormat(FORMAT); //System.out.println(sdf.format(cal.getTime())); String s = "From: <" + this.getFrom() + ">\n" + "To:<" + this.getTo() + ">\n" //+ "Subject: " + this.getSubject() + "\n" + "Subject: =?ISO-8859-15?Q?" + new QuotedPrintableEncoder().encodeWithoutLineBreak(this.subject) + "?=\n" + "Date: " + sdf.format(cal.getTime()) + "\n" + "Message-ID: " + cal.getTimeInMillis() + "@ik2213.lab\n" + "MIME-Version: 1.0\n" + "Content-Type:text/plain; charset=ISO-8859-15\n" + "Content-Transfer-Encoding: quoted-printable\n"; return s.concat(new QuotedPrintableEncoder().encode(this.message)); } } |
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