JDBC连接OpenOffice.org中的Base数据库

OOo的也可以利用Base这个现成的数据库来管理自己的资料，因为它同样支持JDBC连接。所以开始我们的OOo Base JDBC之旅吧。

一、当然是确保安装了OOo了，如果没有的话，可以自己下载自行安装
   详情见：http://forum.ubuntu.org.cn/viewtopic.php?t=76127 或者到官方网站www.openoffice.org
二、下载驱动程序 hsqldb
    下载地址：http://sourceforge.net/project/showfiles.php?group_id=23316
三、把下载好的驱动程序解压，找到hsqldb/lib下面的hsqldb.jar拷贝到JAVA_HOME/jre/lib/ext,比如我的就是：/opt/jdk1.6.0_02/jre/lib/ext
四、新建数据库了
    打开OOo中的Base数据库，根据向导建立一个数据库，然后建立一个自己的表person.里面有两项内容name、sex.如图：

五，编程连接数据库
   （http://digiassn.blogspot.com/2006/07/java-creating-jdbc-connection-to.html）
    Thanks!
import org.hsqldb.jdbcDriver;
import java.sql.*;
import java.util.zip.*;
import java.io.*;
import java.util.*;

public class OooData
...{
public static void main(String[] args) ...{

try ...{
Class.forName("org.hsqldb.jdbcDriver");
}
catch(Exception x) ...{
System.out.println("Unable to load the driver class!");
}


Connection con = null; //Database objects

Statement com = null;
ResultSet rec = null;
ZipFile file = null; //For handling zip files

ZipEntry ent = null;
Enumeration en = null; //For the entries in the zip file

BufferedOutputStream out = null; //For the output from the zip class

InputStream in = null; //for reading buffers from the zip file

File f = null; //Used to get a temporary file name, not actually used for anything

int len; //General length counter for loops

List v = new ArrayList(); //Stores list of unzipped file for deletion at end of program


//Unzip zip file, via info from

//http://www.devx.com/getHelpOn/10MinuteSolution/20447


try ...{
//Open the zip file that holds the OO.Org Base file

file = new ZipFile("/home/liceven/Data.odb");

//Create a generic temp file. I only need to get the filename from

//the tempfile to prefix the extracted files for OO Base

f = File.createTempFile("ooTempDatabase", "tmp");
f.deleteOnExit();

//Get file entries from the zipfile and loop through all of them

en = file.entries();

while (en.hasMoreElements()) ...{

//Get the current element

ent = (ZipEntry)en.nextElement();

//If the file is in the database directory, extract it to our

//temp folder using the temp filename above as a prefix


if (ent.getName().startsWith("database/")) ...{

System.out.println("Extracting File: " + ent.getName());
byte[] buffer = new byte[1024];

//Create an input stream file the file entry

in = file.getInputStream(ent);

//Create a output stream to write out the entry to, using the

//temp filename created above


out = new BufferedOutputStream(new FileOutputStream("/tmp/" + f.getName() + "." + ent.getName().substring(9)));

//Add the newly created temp file to the tempfile vector for deleting

//later on

v.add("/tmp/" + f.getName() + "." + ent.getName().substring(9));

//Read the input file into the buffer, then write out to

//the output file

while((len = in.read(buffer)) >= 0)
out.write(buffer, 0, len);

//close both the input stream and the output stream

out.close();
in.close();
}
}

//Close the zip file since the temp files have been created

file.close();

//Create our JDBC connection based on the temp filename used above


try ...{
con = DriverManager.getConnection("jdbc:hsqldb:file:/tmp/" + f.getName(), "SA", "");
}
catch (SQLException x) ...{
System.out.println("Couldn't get connection!");
}


//Create a command object and execute, storing the results in the rec object

com = con.createStatement();
rec = com.executeQuery("select * from "person"");

//GO through the resultset, and output the results

while (rec.next())
System.out.println(" Name: " + rec.getString("name") + " sex: " + rec.getString("sex"));

//Close all the database objects

rec.close();
com.close();
con.close();

//Delete the temporary files, which file names are stored in the v vector

for (len = 0; len < v.size(); len++)
(new File((String)v.get(len))).delete();
}
catch (Exception e) ...{
e.printStackTrace();
}
}
}