Java 向 MySQL 中插入二进制文件

    File file = new File("D:\\temp\\Assignment_2.pdf");

    FileInputStream fis = new FileInputStream(file);

    Connection conn = DbTools.getConn();

    PreparedStatement ps = conn.prepareStatement("insert into chatroom.images values (?,?)");

    ps.setBinaryStream(1, fis, (int) file.length());

    ps.setString(2, file.getName());

    ps.executeUpdate();

    ps.close();

    fis.close();