hibernate的4.3.11中大对象Blob和Clob的设置

1、设置对象

        Student s = new Student();
        s.setAge(13);
        s.setName("zhang三");
        s.setScore(12.22);

        File f1 = new File("image/Koala.jpg");
        InputStream is = new FileInputStream(f1);

        LobHelper lh = session.getLobHelper();
        Blob image = lh.createBlob(is, f1.length());

        File f2 = new File("image/123.txt");
        Reader reader = new FileReader(new File("image/123.txt"));
        Clob intro = lh.createClob(reader,f2.length());

        s.setImage(image);
        s.setIntroduce(intro);

2、读取对象

        Student s = (Student) session.get(Student.class, 3);
        System.out.println(s);

        Blob image = s.getImage();
        InputStream is = image.getBinaryStream();
        OutputStream os = new FileOutputStream(new File("image/kk.jpg"));
        byte[] b = new byte[1024*1024];
        int len = -1;
        while((len = is.read(b)) != -1){
            os.write(b, 0, len);
        }
        Clob intro = s.getIntroduce();
        Reader reader = intro.getCharacterStream();
        PrintWriter pw = new PrintWriter(new File("image/333.txt"));
        char[] buf = new char[1024*1024];
        len = -1;
        while((len = reader.read(buf)) != -1){
            pw.write(buf, 0, len);
        }
        is.close();
        pw.close();