Java¸ÃºÎÈ¥ºÎ´Ó
TIOBE
µÄ
±à³ÌÓïÑÔÅÅÃû°ñ£¬Ïë±Ø´ó¼Ò¶¼·Ç³£ÊìϤ£¬Ã¿Ô·¢²¼È«Çò±à³ÌÓïÑÔµÄÈȶȺÍÇ÷ÊÆ¡£ÔÚËÄÔ·ݷ¢²¼µÄÊý¾ÝÖУ¬CÓïÑÔÖÕÓÚ³¬¹ýJava³ÉΪNo.1£¬µ«ÕæÕýÈÃÈ˵£ÓÇ
µÄ£¬²¢²»ÊÇCµÄ¶á¹Ú£¬¶øÊÇJavaµÄ³ÖÐøÆ£Èõ£¬¸üÔã¸âµÄÊÇ£¬ËƺõûÓÐÄĸöÀÏ´óÕ¾³öÀ´Íì¾ÈÍÇÊÆ¡£
×÷ΪһÃûJava´ÓÒµÕߣ¬ÎÒÔÚÆóÒµÓ¦ÓÃÁìÓò×öÈí¼þ£¬´Ó¹¤×÷Öв¢Î´¸ÐÊܵ½JavaµÄµØÎ»ÓÐʲô̫´óµÄ±ä»¯£¬J2EEÒÀÈ»ÊÇÆóÒµ B/S
Ó¦Óüܹ¹µÄÊ×Ñ¡£¬µ«Èç¹ûÄÃJavaÈ¥×ö»¥ÁªÍøÓ¦Óã¬Í¬ÑùÊÇWEB£¬µ«Ä¿Ç°À´¿´»¹Óв»ÉÙÎÊÌ⣬²»ÊDz»ÄÜ×ö£¬ÊǺÜÞÏÞΡ£
×î½üÔÚѰÕÒºÏÊʵĵÄwiki¡¢blogÀàµÄ¿ªÔ´³ÌÐò£¬ÒÔǰ¾ÍÖªµÀ´óÃû¶¦¶¦µÄWordPress£¬Drupal£¬µ½¹ÙÍøÉÏÒ»¿´£¬È«¶¼ÊÇPHPµÄ£¬¶øÈ«
Çò×î´óµÄά»ùÍøÕ¾wikipediaÒ²ÊÇ»ùÓÚPHPµÄ¡£ÔÚÎÒÓ¡ÏóÖУ¬JavaµÄ¿ªÔ´ÉçÇøÒ²ÊǷdz£»îÔ¾µÄ£¬ÓÚÊÇÎҾͳ¢ÊÔËÑË÷ÕâЩÈí¼þÔÚJavaÖÐÓÐûÓжԵÈ
µÄÏîÄ¿£¬½á¹ûÁîÈ˷dz£Ê§Íû£¬²»ÊÇûÓУ¬¶øÊǺÜÈõ£¬ÍêÈ«²»ÔÚÒ»¸ö¼¶±ð¡£
µ½Ä¿Ç°ÎªÖ¹£º
ÎÒÕÒµ½µÄJava·½ÃæµÄblog³ÌÐò£¬×îÇ¿µÄµ±Êô£ºApache
Roller¡£µ«ÊÇ£¬Ö»Óм¸Ì×·ç¸ñÄ£°å£¬ÕÒ²»µ½Ê²Ã´²å¼þ£¬Ã»ÓÐÀ©Õ¹¿ª·¢Îĵµ¡£¶øWordPressÓгÉǧÉÏÍòµÄ²å¼þºÍ·ç¸ñÄ£°å£¬²¢ÇÒÓÐÅÓ´óµÄÓû§ÈººÍ»îÔ¾
µÄ¿ª·¢ÉçÇø¡£
Java·½ÃæµÄWiki³ÌÐò£¬×îÇ¿µÄÓ¦¸ÃÊÇ£ºXWiki¡£Õâ¸öÔÚÎĵµ¡¢À©Õ¹ÐÔ¡¢¹¦ÄÜ·½Ã棬¶¼´ïµ½ÁËÒ»¶¨µÄË®×¼£¬µ«ÔÚ²å¼þÊýÁ¿¡¢Óû§»ùÊý·½Ã棬»¹Ô¶µÐ
²»¹ýPHPµÄ¶ÔµÈ²úÆ·¡£
×öÍøÕ¾Í¨³£»¹Óиö±Ø²»¿ÉÉÙµÄ×é¼þ£¬ÄǾÍÊÇÂÛ̳£¬¹úÄÚ×îÓÐÃûµÄDiscuz!£¬ºÍ¹úÍâNo.1µÄphpBB£¬¶¼ÊÇ»ùÓÚPHPµÄ£»ÕâÁ½Äê·çÉúË®ÆðµÄÉçÇø
Íø£¬¿ªÔ´ÏîĿҲÊÇ»ùÓÚPHPµÄ±È½Ï¶à£¬±ÈÈç OpenSocial µÄ²Î¿¼ÊµÏÖ partuza¡£Ñ°ÕҵĹý³ÌÖУ¬»¹·¢ÏÖÒ»¸ö±È½ÏÓôÃÆµÄÊÂÇ飺http://wiki.java.net
£¬
ÕâÊÇÒ»¸öJavaµÄ´ó±¾Óª°¡£¬¾¹È»Ê¹ÓÃTWiki£¬TWikiËäÈ»²»ÊÇ»ùÓÚPHPµÄ£¬µ«Ò²²»ÊÇ»ùÓÚJavaµÄ£¬ËüÊÇPerlдµÄ¡£
³ýÁË¿ªÔ´ÏîÄ¿µÄ¶à¹ÑºÍ±¾Éí¹¦ÄܵÄÇ¿Èõ£¬»¹ÓÐһЩÍⲿÒòËØÓ°ÏìÁËJavaÔÚ»¥ÁªÍøÍøÕ¾£¬ÓÈÆäÊÇÔÚ¸öÈ˺ÍÖÐСÐÍÍøÕ¾Éϵķ¢»Ó£º
1¡¢Java WEB¿ª·¢»·¾³µÄ°²×°ÅäÖÃÏà¶Ô¸´ÔÓ¡£Ä¿Ç°£¬Apache+MySql+PHPÓкÜÏֳɵÄѹËõ°ü£¬ÏÂÔØºó½âѹ¾Í¿ÉÒÔÓÃÁË£¬±ÈÈçwww.wamp
server.com/en/
£¬
Ö»ÓÐ16M¡£¶øJava5×Ô¼º¾ÍÒªÕ¼ÓÃÉϰÙÕ×£¬»¹ÉÙ¼ûJava+Tomcat+MySqlµÄ¼¯³É°²×°°ü¡£
2¡¢JavaµÄ¿ªÔ´ÏîÄ¿µÄÅäÖùý³Ì£¬Í¨³£±ÈPHPÏîĿҪ¸´ÔÓ¡£Ä¿Ç°½Ó´¥µÄ¼¸¸öPHPÏîÄ¿£¬ÉÙÓÐÐèÒªÊÖ¹¤ÐÞ¸ÄÅäÖÃÎļþµÄ£¬¶¼ÊÇÏÂÔØºó£¬¿½±´µ½
ApacheµÄWWWĿ¼£¬È»ºó¾Í¿ÉÒÔ´Ó½çÃæ½øÐÐÅäÖÃÁË¡£¶øJavaÏîÄ¿£¬×î¼òµ¥µÄ£¬ÖÁÉÙÐèÒªÊÖ¹¤ÌîдJDBCÁ¬½ÓÐÅ
Ïà¹ØÎĵµ£º
ÖØÔØ£º·½·¨ÃûÏàͬ ·µ»ØÀàÐͺͲÎÊýÖÁÉÙÓÐÒ»Ïͬ£¨²ÎÊý°üÀ¨ÀàÐÍ ºÍ ÊýÁ¿£©
ÖØÐ´£º·¢ÉúÔÚ×ÓÀà ·½·¨Ãû ·µ»ØÀàÐÍ ²ÎÊý¶¼Ïàͬ Ö»ÊǰѸ¸ÀàµÄ´Ë·½·¨ÖØÐÂд¶øÒÑ
Ò»Ö±ÒÔÀ´ÎÒ¶ÔFacther f = new Son()ÕâÑùµÄÒýÓñäÁ¿ÒýÓÃ×ÓÀàµÄʵÀý¶¼²»ÊǺܶ®¡£
»¹ÓоÍÊÇÏòÉÏÏòÏÂתÐÍ
È磺Animal animal = new Dog() // ÒýÓñäÁ¿ÒýÓÃÁËÀ´×Ô×ÓÀàµÄÊ ......
JAVAµ÷ÓÃMYSQL´æ´¢¹ý³Ì
¹¤³ÌÊÓͼ£º
´úÂëÇåµ¥£º
myconn.java
package org.apache.sh_mysql.test;
import java.sql.*;
public class MyConn {
private static final String DRIVER = "com.mysql.jdbc.Driver";
private static final String URL = "jdbc:mysql://localhost/test?useUnicode=true&characterEn ......
¸´Ï°Ò»ÏÂjava´úÂ룬´úÂëÎÊÌâºÜ¶àÇë¸ßÊÖ²»Áߴͽ̡£°ïÖúÖØ¹¹¡£
public static void main(String[] args){
int employeeCount = 420000; //Ô±¹¤×ÜÊý
Employee[] ËùÓÐÖ°¹¤ = getAllEmployee();
for((i=0;i<=employeeCount ;i++) {
&n ......
JavaÖеÄ×Ö·û´®Ò²ÊÇÒ»Á¬´®µÄ×Ö·û¡£µ«ÊÇÓëÐí¶àÆäËûµÄ¼ÆËã»úÓïÑÔ½«×Ö·û´®×÷Ϊ×Ö·ûÊý×é´¦Àí²»Í¬£¬Java½«×Ö·û´®×÷ΪStringÀàÐͶÔÏóÀ´´¦Àí¡£½«×Ö·û´®×÷ΪÄÚÖõĶÔÏó´¦ÀíÔÊÐíJavaÌṩʮ·Ö·á¸»µÄ¹¦ÄÜÌØÐÔÒÔ·½±ã´¦Àí×Ö·û´®¡£ÏÂÃæÊÇһЩʹÓÃÆµÂʱȽϸߵĺ¯Êý¼°ÆäÏà¹ØËµÃ÷¡£
substring()
ËüÓÐÁ½ÖÖÐÎʽ£¬µÚÒ»ÖÖÊÇ£ºString substring( ......
ÎÄÖÐjstat²¿·Öת×Ô
http://blog.csdn.net/kozazyh/archive/2010/02/04/5289684.aspx
ÓÃjavaÓïÑÔ±à³ÌµÄʱºò£¬sunÌṩÁ˼¸¸öС¹¤¾ß£¬ÓÃ×Å»¹ÊDz»´íµÄ£¬ÌØÒâ×öÏÂ×ܽá
1.jps
jpsÓÃÀ´²é¿´µ±Ç°javaµÄ½ø³Ì£¬ÆäʵËüµÄ¹¦ÄÜ¿ÉÒÔ»ù±¾ÉÏÓÉpsÀ´ÊµÏÖ
¼¸¸ö³£ÓõIJÎÊý£º
-q Ö»ÏÔʾpid£¬²»ÏÔʾclassÃû³Æ,jarÎļþÃûºÍ´«µÝ¸ømain ·½·¨µÄ²Î ......