package net.sjava.email.test;

import java.security.Security;
import java.util.Date;
import java.util.Properties;  
 
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;  

public class GMailSenderTest {

    private static final String SSLFACTORY = "javax.net.ssl.SSLSocketFactory";
    private static final String USERID = "id@gmail.com";
    private static final String PASSWORD = "pw";
    private static Properties properties = System.getProperties();
   
    static {
        properties.setProperty("mail.smtp.host", "smtp.gmail.com");
        properties.setProperty("mail.smtp.socketFactory.class", SSLFACTORY);
        properties.setProperty("mail.smtp.socketFactory.fallback", "false");
        properties.setProperty("mail.smtp.port", "465");
        properties.setProperty("mail.smtp.socketFactory.port", "465");
        properties.put("mail.smtp.auth", "true");
    }
   
    //
    public Message getMessage(Session session, String to, String title, String content) throws MessagingException {
        Message msg = new MimeMessage(session);     
        msg.setFrom(new InternetAddress(to));
        msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to, false));
        msg.setSubject(title);
        msg.setText(content);
        msg.setSentDate(new Date());
        
        return msg;
    }
   
    //
    public void send(String to, String title, String content) {
        
        try {
            Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());            
            Session session = Session.getDefaultInstance(properties, new Authenticator() {
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication(USERID, PASSWORD);
                }
            });            
            Transport.send(this.getMessage(session, to, title, content));
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
   
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        GMailSenderTest sender = new GMailSenderTest();
        sender.send("skidboy@daum.net", "헐", "내용");
    }
}

print01 call
print01 진입
print02 call
print01
print02 진입
print02

package net.sjava.test.sync;

public class SyncTestMain {
   
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        new Thread(){
            public void run() {
                SingleTon instance = SingleTon.getInstance();
                System.out.println("print01 call");
                instance.print01();           
            }
        }.start();
       
        new Thread(){
            public void run() {
                SingleTon instance = SingleTon.getInstance();
                System.out.println("print02 call");
                instance.print02();           
            }
        }.start();
   
    }
}

package net.sjava.test.sync;

public class SingleTon {

    private static SingleTon instance = new SingleTon();
   
    private SingleTon() {
       
    }
   
    public static SingleTon getInstance() {
        return instance;
    }
   
    public synchronized void print01() {
        System.out.println("print01 진입");
        try {
            Thread.sleep(5000);
            System.out.println("print01");
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
   
    public synchronized void print02() {   
        System.out.println("print02 진입");
        try {
            Thread.sleep(1000);
            System.out.println("print02");
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
}

@echo off

set date_var=%date%
set time_var=%time%
set from_file_name=C:\cmd-test\a\*.*
set to_file_base=C:\cmd-test\
set to_file_detail=\a\
set /a server_count=25
set result_file=copy_result.txt

echo ================== update start ======================= >> %result_file%
echo %date_var% %time_var% >> update_result.txt

for /l %%i in (1,1, %server_count%) do (
 call :copy %%i
)

echo ================== copy ended ======================= >> %result_file%
echo %date_var% %time_var% >> update_result.txt
echo ================== update ended ======================= >> %result_file%
goto :EOF

:copy
setlocal
set /a rec_var=%1%
set rec_str_var=0%1%
if %rec_var% lss 10 (set rec_str_var=0%rec_var%) else (set rec_str_var=%rec_var%)
set to_full_file_name=%to_file_base%%rec_str_var%%to_file_detail%
echo %to_full_file_name%
xcopy %from_file_name% %to_full_file_name% /e /c /y /i /r /f >> %result_file%
endlocal
goto :EOF