oracle存储图片，用BLOB出现的有关问题。求教

        String URL = "jdbc:oracle:thin:@127.0.0.1:1521:XE";        Statement stmt;        try {            Class.forName("oracle.jdbc.driver.OracleDriver");            Connection conn = DriverManager.getConnection(URL, "userName",                    "passwd");            stmt = conn.createStatement();            String sql = "select d_image from display_table where autoid=1 for update";            ResultSet rs =stmt.executeQuery(sql);            if (rs.next()) {                                    oracle.sql.BLOB blob = (oracle.sql.BLOB) rs.getBlob(1);                                   File file = new File("D:\\test.png");                                //getBinaryOutputStream(); 这个方法已经过期，不知道用哪个替代                OutputStream outStream = blob.getBinaryOutputStream();                InputStream fin = new FileInputStream(file);                byte[] b = new byte[blob.getBufferSize()];                        int leng = 0;                        while ( (leng = fin.read(b)) != -1) {                          outStream.write(b, 0, leng);                        }            }        }catch (ClassNotFoundException cnf) {            System.out.println("driver not find:" + cnf);        } catch (SQLException sqle) {            System.out.println("can't connection db:" + sqle);        } catch (Exception e) {            System.out.println("Failed to load JDBC/ODBC driver.");        };

Connection conn = null;        Statement stmt = null;        ResultSet rs = null;        OutputStream os = null;        try {            stmt = conn.createStatement();            conn.setAutoCommit(false);            stmt.executeUpdate("insert into t_image (id, image) values (2, empty_blob())");            rs = stmt.executeQuery("select image from t_image where id=2 for update");            if (rs.next()) {                oracle.sql.BLOB blob = (oracle.sql.BLOB) rs.getBlob("image");                os = blob.getBinaryOutputStream();                InputStream is = new FileInputStream("D:/a.jpg");                byte[] b = new byte[blob.getBufferSize()];                int i = 0;                while ((i = is.read(b)) != -1) {                    os.write(b,0,i);                }            }            os.flush();            os.close();            conn.commit();            conn.setAutoCommit(true);// 恢复现场