Java³£ÓôúÂë
/**
* @author he
*
*
* °ÑDateת»»³ÉString£¬ÒÔyyyy-MM-dd HH:mm:ssµÄÐÎʽÏÔʾ
*/
public static String DateToString(Date tempDate) {
String date_str = "";
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); // ¹æ¶¨ÈÕÆÚ¸ñʽ
try {
date_str = formatter.format(tempDate);
} catch (Exception ex) {
date_str = "";
}
return date_str;
}
/**
* @authorhe
*
*
* °ÑStringת»»³ÉDate£¬ÐÎʽΪyyyy-MM-dd HH:mm:ss
*/
public static Date StringToDate(String dateStr) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); // ¹æ¶¨ÈÕÆÚ¸ñʽ
long long_temp = 0;
Date tempDate;
try {
long_temp = formatter.parse(dateStr).getTime();// ÏÈת»»³ÉlongÐÍ
tempDate = new Date(long_temp); // ÔÚת»»³ÉDateÐÍ
} catch (Exception ex) {
tempDate = null;
}
return tempDate;
}
Ïà¹ØÎĵµ£º
來Ô´£ºhttp://www.blogjava.net/oxidy/articles/213105.html
1.°üÃüÃû:È«²¿×ÖĸСд:cn.package.bean
2.ÀàÃüÃû:µ¥´ÊµÄÊ××Öĸ´óд:SimpleBean
3.ÊôÐÔÃû³Æ:µÚÒ»¸öµ¥´ÊµÄÊ××ÖĸСд,Ö®ºóÿ¸öµ¥´ÊµÄÊ××Öĸ´óдstudentName
4.·½·¨ÃüÃû:ÓëÊôÐÔÃüÃûÏàͬ:public
void sayHello()
5.³£Á¿ÃüÃû:È«²¿µ¥´Ê´óд:final S ......
1.Ïà¹ØÀàµÄ½éÉÜ
·þÎñÆ÷³ÌÐò²»Í¬ÓÚ¿Í»§»ú¶ËµÄ³ÌÐò£¬ËüÐèÒª³õʼ»¯Ò»¸ö¶Ë¿Ú½øÐмàÌý£¬Óöµ½Á¬½Óºô½Ð£¬²ÅÓëÏàÓ¦µÄ¿Í»§»ú½¨Á¢Á¬½Ó¡£Java.net°üµÄServerSocketÀà°üº¬Á˱àд·þÎñÆ÷ϵͳµÄÈ«²¿ËùÐ蹦ÄÜ£¬¶ø¿Í»§¶ËÈí¼þͨ³£Ê¹ÓÃjava.net°üÖеĺËÐÄÀàSocketÓë·þÎñÆ÷µÄij¸ö¶Ë¿Ú½¨Á¢Á¬½Ó¡£
2.µ¥Ï߳̿ͻ§¶Ë³ÌÐò½¨Á¢²½Ö裺
1£©½¨Á¢socket£ ......
±ØÐëÓÃthis¹Ø¼ü×ÖµÄÈýÖÖÇé¿ö:
1.ÎÒÃÇÏëͨ¹ý¹¹Ôì·½·¨½«Íⲿ´«ÈëµÄ²ÎÊý¸³Öµ¸ø³ÉÔ±±äÁ¿,¶ø¹¹Ôì·½·¨µÄÐÎʽ²ÎÊýÓëÀà³ÉÔ±µÄ±äÁ¿ÃûÏàͬ,Õâʱ¾ÍÐèÒªthisÕâ¸ö¹Ø¼ü×ÖÀ´Çø±ð¾Ö²¿±äÁ¿ÓëÀà±äÁ¿;
2.¼ÙÉèÓÐÒ»¸öÈÝÆ÷ÀàºÍÒ»¸ö²¿¼þÀà,ÔÚÈÝÆ÷ÀàµÄij¸ö·½·¨ÖÐÒª´´½¨²¿¼þÀàµÄʵÀý¶ÔÏó,¶ø²¿¼þÀàµÄ¹¹Ôì·½·¨Òª½ÓÊÕÒ»¸ö´ú±íÆäËùÔÚÈÝÆ÷µÄ²ÎÊý,ÕâÊ±Ò²Ò ......
1.1 ²»ÓÃnew¹Ø¼ü´Ê´´½¨ÀàµÄʵÀý
¡¡¡¡
¡¡¡¡ÓÃnew¹Ø¼ü´Ê´´½¨ÀàµÄʵÀýʱ£¬¹¹Ô캯ÊýÁ´ÖеÄËùÓй¹Ô캯Êý¶¼»á±»×Ô¶¯µ÷Óᣵ«Èç¹ûÒ»¸ö¶ÔÏóʵÏÖÁËCloneable½Ó¿Ú£¬ÎÒÃÇ¿ÉÒÔµ÷ÓÃËüµÄclone()·½·¨¡£clone()·½·¨²»»áµ÷ÓÃÈκÎÀ๹Ô캯Êý¡£
¡¡¡¡
¡¡¡¡ÔÚʹÓÃÉè¼Æģʽ£¨Design Pattern£©µÄ³¡ºÏ£¬Èç¹ûÓÃFactoryģʽ´´½¨¶ÔÏó£¬Ôò¸ÄÓÃclone( ......