數據庫中的BLOG數據處理

瀏覽帖子，發現一段代碼，貼出來共享吧，主要是處理數據庫中大塊數據，代碼如下；

 public void queryBlob() throws SQLException, IOException{
    Connection conn = null;
    PreparedStatement stmt = null;
    ResultSet rs = null;
    try {
        conn = ConnCreate.getConnection("jdbc:mysql://localhost:3306/test",
                "root", "r66t");
        String sql = "select info from  blob_test where id=3";
        stmt = conn.prepareStatement(sql);
        rs = stmt.executeQuery();
        if(rs.next()){
            InputStream is=rs.getBinaryStream(1);
            File file = new File("d:\\a.bmp");
            OutputStream os = new FileOutputStream(file);
            int len = 0;
            byte[] buffers = new byte[1024];
            while((len=is.read(buffers))>0){
                os.write(buffers, 0, len);
            }
            os.flush();
            os.close();
            is.close();
        }
    } finally {
        ConnCreate.close(conn, stmt, rs);
    }