jsp+servlet+javabean中关于图片上传的问题

1，首先是前台的提交表单页面：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ page import="java.util.*" %>
<%@ page import="java.sql.*" %>




 
		



   文件上传 - 使用jspsmart upload组件



　
图片： 
　

　
  
用户：
　

　
　
邮箱：
　

　
　
 
　
　
　

2，处理jsp页面传过来的数据：

package action;


import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;


import model.member;






import com.jspsmart.upload.*;


import dao.addmember;
public class addform extends HttpServlet {
 
 /**
	 * 
	 */
	private static final long serialVersionUID = 1L;
private ServletConfig config;
 /**
 * 初始化Servlet
 */
 final public void init(ServletConfig config) throws ServletException {
  this.config = config;
 }
 
 /**
 * 处理GET请求
 */
 public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  PrintWriter out = response.getWriter();
  out.println("");
  out.println("");
  out.println("
jspSmartUpload : Servlet Sample
");
  out.println("

");
  out.println("The method of the HTML form must be POST.");
  out.println("");
  out.println("");
 }
 
 /**
 * 响应POST请求
 */
 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {


  
  PrintWriter out = response.getWriter();
  out.println("");
  out.println("");
  out.println("
jspSmartUpload : Servlet Sample
");
  out.println("
");
  
  SmartUpload mySmartUpload = new SmartUpload();
  try {
   // 初始化
   mySmartUpload.initialize(config,request,response);
   // 上载
   mySmartUpload.upload();
   com.jspsmart.upload.File f1 = mySmartUpload.getFiles().getFile(0);
   String name = f1.getFileName();
   // 保存上载文件到指定目录
   //需要在webroot目录下面新建一个upload文件夹
   mySmartUpload.save("upload");
   String email=mySmartUpload.getRequest().getParameter("email"); //只能用这种方法才能接收到数据，不然用request.getparameter()取得话只能是null
   String memberName=mySmartUpload.getRequest().getParameter("memberName");  //email,memberName为form表单提交过来的
   String imageFile =  name;//图片名字
   member m = new member();
   m.setEmail(email);
   m.setImageFile(imageFile);
   m.setMemberName(memberName);
   //这边是dao层处理的增加，加入数据库的是图片的名字
   addmember a = new addmember();
   boolean q = false;
    q = a.add(m);
    if(q){
    	request.getRequestDispatcher("success.jsp").forward(request,response);
    	request.getSession().setAttribute("path", m.getImageFile());//把图片的名字返回给前台页面进行显示
    	
    }else{
    	response.sendRedirect("login.html");
    }
  } catch (Exception e){
   out.println("Unable to upload the file.
");
   out.println("Error : " + e.toString());
  }
  out.println("");
  out.println("");
    }
}

3，这边是数据库的增加，自己改成自己的就可以了。主要代码就这么多

package dao;

import java.io.UnsupportedEncodingException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

import util.helper;

import model.member;

public class addmember {

	public boolean add(member m) {
		
		Connection connection = helper.getConnection();
		PreparedStatement preparedStatement = null;

		String memberName = m.getMemberName();
		String email = m.getEmail();
		String file = m.getImageFile();
		
		
		int sign = 0;
		String sql = "INSERT into member (memberName,email,imageFile) VALUES(?,?,?)";
		try {
			memberName = new String(memberName.getBytes("ISO8859-1"), "UTF-8");
			email = new String(email.getBytes("ISO8859-1"),"UTF-8");
			file = new String(file.getBytes("ISO8859-1"),"UTF-8");
			
			preparedStatement = connection.prepareStatement(sql);
			preparedStatement.setString(1, memberName);
			preparedStatement.setString(2, email);
			preparedStatement.setString(3, file);
			sign = preparedStatement.executeUpdate();
		} catch (SQLException e) {
			e.printStackTrace();
		} catch (UnsupportedEncodingException e1) {
			e1.printStackTrace();
		}
		if (sign == 1) {
			return true;
		} else {
			return false;
		}
	}
	
	

}