project_data-JSP.rar_mssql jsp_专家库_信息管理系统_项目申报_项目管理

package beanMailer; import java.io.*; import java.net.*; import java.text.*; import java.util.*; public class SMTPBean implements Serializable{ private Socket smtp; private BufferedReader input; private PrintStream output; private String smtpServer = "your.smtp.server"; private String serverReply; private int port = 25; public SMTPBean() { } public void sendMail(String mailfrom, String mailto, String subject, String message) throws SMTPException{ connect(); hail(mailfrom, mailto); sendMessage(mailfrom, mailto, subject, message); logout(); } public void connect() throws SMTPException { try { smtp = new Socket(smtpServer, port); input = new BufferedReader(new InputStreamReader(smtp.getInputStream())); output = new PrintStream(smtp.getOutputStream()); serverReply = input.readLine(); if (serverReply.charAt(0) == '2' || serverReply.charAt(0) == '3') { } else { throw new SMTPException("Error connecting to SMTP server " + smtpServer + " on port " + port); } } catch(Exception e) { throw new SMTPException(e.getMessage()); } } public void hail(String mailfrom, String mailto) throws SMTPException { if (submitCommand("HELO " + smtpServer)) throw new SMTPException("Error occured during HELO command."); if (submitCommand("MAIL FROM: " + mailfrom)) throw new SMTPException("Error during MAIL command."); if (submitCommand("RCPT TO: " + mailto)) throw new SMTPException("Error during RCPT command."); } public void sendMessage(String mailfrom, String mailto, String subject, String message) throws SMTPException { Date ldate_today = new Date(System.currentTimeMillis()); SimpleDateFormat lgmt_date = new SimpleDateFormat("d MMM yyyy HH:mm:ss 'GMT'"); lgmt_date.setTimeZone(TimeZone.getTimeZone("GMT")); lgmt_date.format(ldate_today); if (submitCommand("DATA")) throw new SMTPException("Error during DATA command."); String header = "From: " + mailfrom + "\r\n"; header += "To: " + mailto + "\r\n"; header += "Subject: " + subject + "\r\n"; header += "Date: " + lgmt_date + "\r\n\r\n"; if (submitCommand(header + message + "\r\n.")) throw new SMTPException("Error during mail transmission."); } private boolean submitCommand(String command) throws SMTPException { try { output.print(command + "\r\n"); serverReply = input.readLine(); if (serverReply.charAt(0) == '4' || serverReply.charAt(0) == '5') return true; else return false; } catch(Exception e) { throw new SMTPException(e.getMessage()); } } public String getServerReply() { return serverReply; } public int getPort(){ return port; } public void setPort(int newPort){ port = newPort; } public String getSmtpServer(){ return smtpServer; } public void setSmtpServer(String newSmtpServer){ smtpServer = newSmtpServer; } public void logout() throws SMTPException { try { if (submitCommand("Quit")) throw new SMTPException("Error during QUIT command"); input.close(); output.flush(); output.close(); smtp.close(); } catch(Exception e) { } } }