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

JavaÊý¾Ý¿âÁ¬½Ó³ØÀàÔ´Âë

À´×Ô:http://www.cnblogs.com/shiyangxt/archive/2008/07/30/1256813.html
»·¾³£ºMyEclipse
 
Êý¾Ý¿â£ºmysql
 
Ê×ÏÈн¨JavaÏîÄ¿£¬È»ºóн¨Á½¸öÀ࣬һ¸öÊý¾Ý¿âÁ¬½Ó³ØÀ࣬һ¸ö²âÊÔÀà¡£
 
·Ö±ðÃüÃûConnectionPool£¬ConnectionPoolTest¡£
 
È»ºóн¨Ò»¸öÅäÖÃÎļþ£¬ÃüÃû£ºdbpool.properties¡£
 
дÈë´úÂ룺
ConnectionPool.java
 
Code
package webbook.util;
import java.io.FileInputStream;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;
import java.util.Vector;
public class ConnectionPool {
    private Vector<Connection> pool;
    private String url;
    private String username;
    private String password;
    private String driverClassName;
    /** *//**
     * Á¬½Ó³ØµÄ´óС£¬Ò²¾ÍÊÇÁ¬½Ó³ØÖÐÓжàÉÙ¸öÊý¾Ý¿âÁ¬½Ó¡£
     */
    private int poolSize = 1;
    private static ConnectionPool instance = null;
    /** *//**
     * ˽ÓеĹ¹Ôì·½·¨£¬½ûÖ¹Íⲿ´´½¨±¾ÀàµÄ¶ÔÏó£¬ÒªÏë»ñµÃ±¾ÀàµÄ¶ÔÏó£¬Í¨¹ý<code>getIstance</code>·½·¨¡£
     * ʹÓÃÁËÉè¼ÆÄ£Ê½Öеĵ¥×Óģʽ¡£
     */
    private ConnectionPool() {
        init();
    }
    /** *//**
     * Á¬½Ó³Ø³õʼ»¯·½·¨£¬¶ÁÈ¡ÊôÐÔÎļþµÄÄÚÈÝ ½¨Á¢Á¬½Ó³ØÖеijõʼÁ¬½Ó
     */
    private void init() {
        pool = new Vector<Connection>(poolSize);
        readConfig();
        addConnection();
    }
    /** *//**
     * ·µ»ØÁ¬½Óµ½Á¬½Ó³ØÖÐ
     */
    public synchronized void release(Conn


Ïà¹ØÎĵµ£º

arcgis server9.3 for java °²×°

   ArcGIS Server9.3ÍêÕûÇåÎú°²×°Á÷³Ì
ÒÔϵÄArcGIS Server9.3°²×°Á÷³ÌÊÇÎÒ¸öÈË×ܽá³öÀ´µÄ£¬ÔÚwindowXP2Ñé֤ͨ¹ý£¬ÐèÒªµÄ»°£¬Ï£ÍûÓõÄ×Å¡£
    Ò»¡¢ArcGIS Server²úÆ·°üÀ¨Á½¸ö²¿·Ö£º
     1¡¢GIS Server£¬ËüÊÇÒ»¸öÌṩGIS·þÎñµÄ·þÎñÆ÷Èí¼þ²úÆ·£¬°üÀ¨Ò»ÏµÁкËÐÄAO¿âºÍÒ»¸ö¹ ......

ËĸöÓÐÓõÄJava¹ýÂËÆ÷

Ò»¡¢Ê¹ä¯ÀÀÆ÷²»»º´æÒ³ÃæµÄ¹ýÂËÆ÷     
import javax.servlet.*;    
import javax.servlet.http.HttpServletResponse;    
import java.io.IOException;    
   
/**   
* ÓÃÓÚµÄʹ Browser ²» ......

¡¾×ª¡¿Java double Ïà¼ÓµÄ¹ÖÊÂÇé

(±¾ÎÄ×ªÔØ×Ô£ºhttp://hi.baidu.com/edilyxin/blog/item/27dc152aba3e10315343c19c.html)
ÎÊÌâµÄÌá³ö£º  
±àÒëÔËÐÐÏÂÃæÕâ¸ö³ÌÐò»á¿´µ½Ê²Ã´£¿  
public   class   Test{  
          public   static  ......

Java/JSPÖÐÎÄÂÒÂëÎÊÌâ½â¾öÐĵÃ

Java/JSPÖÐÎÄÂÒÂëÎÊÌâ½â¾öÐĵÃ
×Ô´Ó½Ó´¥JavaºÍJSPÒÔÀ´£¬¾Í²»¶ÏÓëJavaµÄÖÐÎÄÂÒÂëÎÊÌâ´ò½»µÀ£¬ÏÖÔÚÖÕÓڵõ½Á˳¹µ×µÄ½â¾ö£¬ÏÖ½«ÎÒÃǵĽâ¾öÐĵÃÓë´ó¼Ò¹²Ïí¡£
Ò»¡¢JavaÖÐÎÄÎÊÌâµÄÓÉÀ´
JavaµÄÄں˺ÍclassÎļþÊÇ»ùÓÚunicodeµÄ£¬ÕâʹJava³ÌÐò¾ßÓÐÁ¼ºÃµÄ¿çƽ̨ÐÔ£¬µ«Ò²´øÀ´ÁËһЩÖÐÎÄÂÒÂëÎÊÌâµÄÂé·³¡£Ô­ÒòÖ÷ÒªÓÐÁ½·½Ã棬JavaºÍJS ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ