Hibernate存取图像到mysql

1.存

代码：

File file = new File("D:\\Download\\123.jpg");
		InputStream in = new FileInputStream(file);
        Blob imag=(Blob) Hibernate.getLobCreator(session).createBlob(in, in.available());
        Students s=new Students(1, "wang", new Date(), "China", imag);
        session.save(s);

2.取

注意：设置<property name="hibernate.hbm2ddl.auto">update</property>

Students s=session.get(Students.class,1);
		Blob imag=s.getPicture();
		InputStream in=imag.getBinaryStream();
		File f=new File("D:\\Download\\456.jpg");
		OutputStream out=new FileOutputStream(f);
		//创建缓冲区读取数据
		byte[] buff=new byte[in.available()];
		in.read(buff);
		out.write(buff);
		in.close();
		out.close();