package?com.cdd.jdbc;

import?java.sql.*;
import?java.io.*;

public?class?CreateJavaDBJoin?{
????
????private?static?final?String?DRIVERCLASS?=?“org.apache.derby.jdbc.embeddedDriver“;?//?數(shù)據(jù)庫驅(qū)動
????private?static?final?String?URL?=?“jdbc:derby:db_database22“;//?數(shù)據(jù)庫URL
????private?static?final?ThreadLocal?threadLocal?=?new?ThreadLocal（）;?//?創(chuàng)建用來保存數(shù)據(jù)庫連接的線程
????private?static?Connection?conn?=?null;//?數(shù)據(jù)庫連接
????
????static?{?//?通過靜態(tài)方法加載數(shù)據(jù)庫驅(qū)動，并且在數(shù)據(jù)庫不存在的情況下創(chuàng)建數(shù)據(jù)庫
????????try?{
????????????Class.forName（DRIVERCLASS）;?//?加載數(shù)據(jù)庫驅(qū)動
????????????System.out.println（“數(shù)據(jù)庫驅(qū)動加載成功！！“）;
????????????File?albumF?=?new?File（“db_database22“）;//?創(chuàng)建數(shù)據(jù)庫文件對象
????????????if?（!albumF.exists（））?{//?判斷數(shù)據(jù)庫文件是否存在
????????????????String[]?sqls?=?new?String[1];//?定義創(chuàng)建數(shù)據(jù)庫的SQL語句
??????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????284??2015-08-28?13:53??.classpath
?????文件?????????379??2015-08-28?13:53??.project
?????文件?????????386??2015-08-28?13:53??derby.log
?????文件?????????629??2015-08-28?13:53??.settings\org.eclipse.jdt.core.prefs
?????文件????????2536??2015-08-28?13:53??bin\com\cdd\jdbc\CreateJavaDBJoin.class
?????文件??????????38??2015-08-28?13:53??db_database22\db.lck
?????文件?????????981??2015-08-28?13:53??db_database22\service.properties
?????文件??????????48??2015-08-28?13:53??db_database22\log\log.ctrl
?????文件?????1048576??2015-08-28?13:55??db_database22\log\log1.dat
?????文件??????????48??2015-08-28?13:53??db_database22\log\logmirror.ctrl
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c10.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c101.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c111.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c121.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c130.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c141.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c150.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c161.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c171.dat
?????文件???????36864??2015-08-28?13:53??db_database22\seg0\c180.dat
?????文件???????16384??2015-08-28?13:53??db_database22\seg0\c191.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c1a1.dat
?????文件???????16384??2015-08-28?13:53??db_database22\seg0\c1b1.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c1c0.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c1d1.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c1e0.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c1f1.dat
?????文件???????20480??2015-08-28?13:53??db_database22\seg0\c20.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c200.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c211.dat
?????文件????????8192??2015-08-28?13:53??db_database22\seg0\c221.dat
............此處省略41個文件信息