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Java»ñµÃÖ¸¶¨ClassLoaderËù¼ÓÔØµÄÀàÁбí

     Ò»Ö±ÏëʵÏÖÏñDriverManagerÄÇÑùµÄgetConnection·½·¨£¬Í¨¹ý´Ë·½·¨¾Í¿ÉÒÔ»ñµÃÁ¬½Ó£¬¶øÇÒ»¹²»ÓÃÖ¸¶¨Driver£¬µ«Ç°ÌáÊÇDriverÒѾ­Í¨¹ýClass.forName()»ònew Driver()½øÐÐÁ˼ÓÔØ¡£½ñÌìÖÕÓÚµÃÒÔʵÏÖ¡£
      package quiz;
import java.lang.reflect.Field;
public class ClassLoaderDriver {
/**
* @param args
* @throws NoSuchFieldException
* @throws SecurityException
* @throws IllegalAccessException
* @throws IllegalArgumentException
* @throws ClassNotFoundException
*/
public static void main(String[] args) throws SecurityException, NoSuchFieldException, IllegalArgumentException, IllegalAccessException, ClassNotFoundException {
Class.forName("com.mysql.jdbc.Driver");
Field field = ClassLoader.class.getDeclaredField("classes");
field.setAccessible(true);//ÉèÖøóÉÔ±±äÁ¿Îª¿É·ÃÎÊ
System.out.println(field.get(ClassLoader.getSystemClassLoader()));
}
}

ÕâÑùÒ»À´£¬ÎÒÃǾͿÉÒÔʵÏÖºÍDriverManagerÀàËÆµÄ¹¦ÄÜÁË¡£


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sql 2005 ´æ´¢¹ý³Ì·ÖÒ³ java ´úÂë

 create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',         
@pagesize int output,--ÿҳÏÔʾ¼Ç¼ÌõÊý
@currentpage int output,--µÚ¼¸Ò³
@orderid nvarchar(50),--Ö÷¼üÅÅÐò
@sort int,--ÅÅÐò·½Ê½£¬1±íʾÉýÐò£¬0±íʾ½µÐòÅÅÁÐ ......

javaʹÓÃrocksawºÍvserv tcpipʵÏÖ»ùÓÚICMPµÄPing¹¦ÄÜ

Ò»£º×¼±¸ www.savarese.org download
 1.  rocksaw-1.0.0-src.tar.gz
 2.  vserv-tcpip-0.9.2-src.tar.gz
¶þ£º±àÒëÔ´ÎļþµÃµ½jar°ü ʹÓÃAnt
 1.  build vserv-tcpip-0.9.2-src
      ÔÚvserv-tcpip-0.9.2Ŀ¼ÏÂÃæ½¨Ò»¸ötestsĿ¼£¬È»ºóÔÚcmd´°¿ÚϽøÈë ......

Java WebÖнâ¾öÖÐÎÄÂÒÂë

ÔÚMVCÖÐÅäÖñàÂëfilter¿ÉÒÔ½â¾öÖÐÎÄÂÒÂëÎÊÌâ
--------------------------------------------------------------------------------------------------------------------------------------------------
ÔÚweb.xmlÖмÓÈëÈçÏÂfilter´úÂ룺
    <!--Form content submit encoding filter start-->
& ......

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³éÏó¾ÍÊǺöÂÔÒ»¸öÖ÷ÌâÖÐÓ뵱ǰĿ±êÎ޹صÄÄÇЩ·½Ã棬ÒÔ±ã¸ü³ä·ÖµØ×¢ÒâÓ뵱ǰĿ±êÓйصķ½Ãæ¡£³éÏó²¢²»´òËãÁ˽âÈ«²¿ÎÊÌ⣬¶øÖ»ÊÇÑ¡ÔñÆäÖеÄÒ»²¿·Ö£¬ÔÝʱ²»Óò¿·Öϸ½Ú¡£³éÏó°üÀ¨Á½¸ö·½Ã棬һÊǹý³Ì³éÏ󣬶þÊÇÊý¾Ý³éÏó¡£
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JAVAÖÐOracleȡֵ

package com.svse.dao;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
public class UserDAO {
/*
* javaµ÷Óô洢¹ý³Ì
*/
public int addUser(String username,int userage)
{
Connection conn = null;
int useri ......
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