Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Lombok Ïû³ýJavaµÄÈß³¤


  LombokÊÇÒ»¸ö¿ªÔ´ÏîÄ¿£¬¿ÉÒÔÓÃÀ´Ïû³ýJava´úÂëµÄÈß³¤
  Ïêϸ½éÉܲο´http://www.ibm.com/developerworks/opensource/library/os-lombok/index.html
  ÏÂÃæ½éÉÜLombokÈçºÎÏû³ýJava´úÂëµÄÈß³¤¡£
1.      Ê×ÏÈÈ¥http://projectlombok.org/. ÏÂÔØlombok.jar °ü
2.      Èç¹ûÊÇwindows²Ù×÷ϵͳ£¬¿ÉÒÔÖ±½ÓË«»÷ Lombok.jar ÎļþʹÓôò¿ª½øÐа²×°£¬
Ñ¡ÔñÄã×¼±¸°²×°µÄeclipse°æ±¾¡££¨ÔÚÕâÀï°²×°Ö÷ÒªÊÇΪÁËʹÓÃeclipse±à¼­javaÎļþʱ·½±ã²é¿´£©¡£
3.      °²×°Íê³Éºó£¬´ò¿ªeclipse´´½¨Ò»¸öjava¹¤³Ì£¬È»ºó¿ªÊ¼½øÐÐjava´úÂë±àд
ͨ¹ýÉÏÃæµÄ´úÂë´ó¼ÒÊDz»ÊÇ·¢ÏÖÁËJavaBeanÉÙÁ˺ܶà´úÂ룬ֻҪÔÚclassǰÔö¼Ó @Data ¾Í»áÖ±½Ó½«ÀïÃæµÄ˽ÓÐ×Ö¶Î×Ö¶ÎÉú²úget£¬set·½·¨ºÍtoString£¨£©£¬equals£¨£©£¬hashCode£¨£©·½·¨¡£
£¨°²×°¹ýlombokÖ®ºóÔÚ outlineÖпÉÒÔ¿´¼û£©
4.      Èç¹ûһЩget»òÕßset·½·¨²»Ï빫¿ª
ÔÚnameÊôÐÔǰÔö¼Ó@Getter£¨AccessLevel.PROTECTED£©×¢½â£¬getName()µÄ·ÃÎÊȨÏÞ·¢Éú±ä»¯¡£
5.      LombokÌṩµÄtoString() ·½·¨»áÁгöÀàÃûÒÔ¼°ËùÓеÄÊôÐÔÃûºÍÖµ£¬ÖмäÒÔ¶ººÅ·Ö¸î£»Èç¹ûÏëºöÂÔij¸öÊôÐÔ
ÔÚÀàÉÏÃæÔö¼Ó×¢½â@ToString(exclude=”name”) ÕâÑùnameÊôÐԾͲ»»áÊä³ö
6.      ÐÞ¸ÄhashCode£¬equals·½·¨
ÔÚÀàÉÏÃæÔö¼Ó@EqualsAndHashCode(exclude="name")
7.      Ïû³ýry/catch/finally ´úÂë¿é
ÔÚInputStream ǰÔö¼Ó@clearup ×¢½â£»Ïû³ýÁË try/catch/finally ¿é£¬²¢ÇҹرÕÁË¿ª·ÅÁ÷¡£
 
×ܽ᣺ Lombok ÈÃÎÒÃǵĴúÂë¿´ÆðÀ´Õû½àÁ˺ܶ࣬¼õÉÙÁËÈßÓ࣬ÓÐÀûÓÚºóÆÚµÄά»¤¡£


Ïà¹ØÎĵµ£º

¸ù¾Ý¾­Î³¶ÈÇóÁ½µã¼ä¾àÀëʵÏÖÔ´Âë(java)


Ñо¿ÁËÒ»ÏÂGoogle
MapÉϵĸù¾Ý¾­Î³¶ÈÇóµØÇò±íÃæÁ½µã¼ä¾àÀëµÄʵÏÖ£¬ ÓÃjavaʵÏÖÁËÒ»°Ñ£¬¶ÔÎÒ¹ú¾³ÄÚµÄBeijing54, Xian80,WGS84ÈýÖÖ×ø±êϵµÄ¿Õ¼ä¾àÀë¼ÆËã¸Ð¾õÕâ¸öʵÏÖÊDZȽÏ׼ȷµÄ¡£µ±È»£¬ÕâÀïÖ»ÊǸöÈ˵ĸоõ¶øÒÑ¡£¡£¡£¿ÉÄÜÎÒ»¹Ã»ÓÐÓöµ½ÄÇÖÖ¶Ô¾«¶ÈÒªÇó·Ç³£ÑϸñµÄµØ·½£¬»òÐí£¬±¾ÉíÎÒÕâ¸ö·½Ê½¾ÍÊÇ´íÎóµÄ¡£¡£¡£ºÇºÇ ......

flexͨ¹ýblazedsÓëjavaʵÏÖÔöɾ¸Ä²é

ÓõÄÊÇMySQLÊý¾Ý¿â¡£
1£¬½¨Ò»¸öuserdb¿â£¬ÔÙ½¨userinfo±í£¬×ֶΣºid(int),username(varchar),password(varchar)¡£
create database userdb;
use userdb;
create table userinfo(
id int(10) not null auto_increment,
username varchar(20),
password varchar(20),
primary key(id));
2£¬DBConnection.jav ......

Java СÈÕÀú¸ñʽÊä³ö ÈòÄê¼ÆËã

2010-04-26 22:36
import java.util.Scanner;
public class _calendar {
public static void main(String[] args) {
   // TODO Auto-generated method stub
   System.out.println("ÇëÊäÈëÄê·Ý£º");
   Scanner sc = new Scanner(System.in);
   int year = sc.nextInt(); ......

Javaѧϰ֮·

1£®ÈçºÎѧϰ³ÌÐòÉè¼Æ£¿
JAVAÊÇÒ»ÖÖÆ½Ì¨£¬Ò²ÊÇÒ»ÖÖ³ÌÐòÉè¼ÆÓïÑÔ£¬ÈçºÎѧºÃ³ÌÐòÉè¼Æ²»½ö½öÊÊÓÃÓÚJAVA£¬¶ÔC++µÈÆäËû³ÌÐòÉè¼ÆÓïÑÔÒ²Ò»Ñù¹ÜÓá£Óбà³Ì¸ßÊÖÈÏΪ£¬ JAVAÒ²ºÃCÒ²ºÃûʲô·Ö±ð£¬ÄÃÀ´¾ÍÓá£ÎªÊ²Ã´ËûÃÇÄÜ´ïµ½Èç´Ë¾³½ç£¿ÎÒÏëÊÇÒòΪ±à³ÌÓïÑÔÖ®¼äÓй²Í¨Ö®´¦£¬Áì»áÁ˱à³ÌµÄ¾«Ë裬×ÔÈ»Äܹ»×öµ½Ò»Í¨°Ùͨ¡£ÈçºÎѧϰ³ÌÐòÉè¼ÆÀ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ