读取oracle中Bob字段，保存到本地

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class TestRead
{
   
    /**
     * @param args
     */
    public static void main(String[] args)
    {
        Connection conection = null;
        ResultSet rs = null;
        Statement st = null;
        InputStream inputStream = null;
       
        try
        {
            Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
            String url = "jdbc:oracle:thin:@localhost:1521:mydb";
            // mydb为数据库的SID
            String user = "gy";
            String password = "guozi123";
            conection = DriverManager.getConnection(url, user, password);
            String sql = "select * from TESTBLOB";
            st = conection.createStatement();
            rs = st.executeQuery(sql);
           
            while (rs.next())
            {
                java.sql.Blob blob = rs.getBlob("data");// 读取Blog字段
                inputStream = blob.getBinaryStream();// 获得字节流               
              
                FileOutputStream file = new FileOutputStream("c://test//"
                        + rs.getString("name"));
                byte[] b = new byte[1024];
                int i = 0;
                while ((i = inputStream.read(b)) > 0)
                {
                    file.write(b, 0, i);                   
                }
               
                file.close();
            }
           
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        finally
        {
            try
            {
                if (rs != null) rs.close();
                if (st != null) st.close();
                if (conection != null) conection.close();
            }
            catch (SQLException e)
            {
                e.printStackTrace();
            }
            if (inputStream != null)
            {
                try
                {
                    inputStream.close();
                }
                catch (IOException e)
                {
                    e.printStackTrace();
                }
                inputStream = null;
            }
           
        }
    }
   
}