当我点击submit按钮插入用户详细信息时，我想将用户配置文件图片的图像上传到sql数据库中。我写的代码只是从一个特定的d文件夹中获取图片上传图片我写的代码上传图片但是得到错误（u.setimage（5，（inputstream）fs1，fs1.available（））；）我还想上传图像从任何驱动器的系统和存储到sql数据库。
servlet编码：

@WebServlet(urlPatterns = {"/Insert"})
    public class Insert extends HttpServlet {

        @Override
        protected void doPost(HttpServletRequest request, HttpServletResponse response)
                throws ServletException, IOException {
           response.setContentType("text/html");  
            PrintWriter out=response.getWriter();  

                ServletContext context = getServletContext();
            String dirName =context.getRealPath("d://Photo/");
          try
        {  
            String name = request.getParameter("name");  
            String address = request.getParameter("address");
            String phone = request.getParameter("phone");
            String image = request.getParameter("image"); 
            String password = request.getParameter("password");

            String fPath = "d:\\Photo\\" + image;
            System.out.println("insert! "+image);

            User u=new User();
            u.setName(name);
            u.setAddress(address);
            u.setPhone(phone);
            u.setImage(fPath);
            u.setPassword(password);  

            int i=UserDao.save(u);

           if(i>0)
            {  

                request.getRequestDispatcher("user-list.jsp").include(request, response);  
            }
            else
            {  
            out.println("Sorry! unable to insert record"); 

            }
        }
            catch(Exception e)
            {
                e.printStackTrace();
            }

        out.close();  
    }

}

用户代码：

public static int save(User u) throws FileNotFoundException{  
    int status=0;

    File file1 = null;
    FileInputStream fs = null, fs1=null;
    String img = u.getImage();
    System.out.println("userdao! "+img);
    file1 = new File(img);
    fs = new FileInputStream(file1);

    try{   
       Connection con=getConnection();
            PreparedStatement ps = con.prepareStatement(INSERT_USERS);
            ps.setString(1, u.getName());
            ps.setString(2, u.getAddress());
            ps.setString(3, u.getPhone());
            ps.setObject(4, null);
            fs = new FileInputStream(img);
            System.out.println(fs);
            fs1=fs;
             ps.setBinaryStream(4, (InputStream)fs1, fs1.available());
            ps.setString(5, u.getPassword());

            status=ps.executeUpdate();  
    }catch(Exception e){System.out.println(e);}  
    return status;  
}