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java jdbc Á¬½ÓOracle9i

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package com.lxh.dbcon;//´ò°ü
import java.sql.*;//µ¼Èësql°ü
public class DbCon {//¶¨ÒåÁ¬½ÓÀà
 private final String DRIVER="oracle.jdbc.driver.OracleDriver";//OracleµÄÇý¶¯
 private final String URL="jdbc:oracle:thin:@localhost:1521:Oracle9i";//Oracle9iΪOracleµÄÖ÷»ú´®Ãû£¨Ò²¾ÍÊÇOracleµÄSID£©ÔÚ×°OracleµÄʱºòÌîдµÄSID
 private final String DBUSER="scott";//ÕâÀï¾ÍÒÔscott/tigerΪÓû§µÇ¼
 private final String DBPASSWORD="tiger";
 private Connection con=null;//Ô¤Ïȶ¨ÒåÒ»¸öÁ¬½Ó½Ó¿Ú
 
 public DbCon() {//ÔÚ¹¹Ôì·½·¨ÖмÓÔØÊý¾Ý¿âÇý¶¯
  try{
   Class.forName(DRIVER).newInstance();
  }catch(Exception e){
   e.printStackTrace();
  }
 }
 public Connection getConnection(){ //Á¬½ÓÊý¾Ý¿âµÄ·½·¨
  try{
   con=DriverManager.getConnection(URL,DBUSER,DBPASSWORD);
  }catch(Exception ew){
   ew.printStackTrace();
  }
  
  return con;
 }
}
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/*studentʵÌåÀà=java*/
public class Student implements java.io.Serializable{
 private String sNo;
 private String sName;
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}
/*flex asÀà Student.as*/
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import java.util.*;
import java.text.*;
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package fileIo;  
 
import  java.io.BufferedReader;  
import  java.io.BufferedWriter;  
import  java.io.File;  
import  java.io.FileReader;  
import  java.io.FileWriter;  
 
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 import   java.util.LinkedList;  
   
  public   abstract   class   Manager   {  
   
          private   String   mThreadPoolName   =   null;  
   
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Java Éè¼ÆÄ£Ê½(12)

Observer
Intent
Define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.
How to
Subject
  
knows its observers. Any number of Observer objects may observe a subject.
  
provides an in ......
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