用jspsmartupload进行上传下载

用jspsmartupload进行上传下载(5)                 out.println("no file");
            }
        } catch (Exception ex) {
            if(file!=null)
                file.delete();
            out.println("upload fail");
            ex.printStackTrace();
        }

        System.out.println("============UpLoad end=============");
    }
}

这是下载，进行显示图片

import Java.sql.*;
import Java.io.*;
import Java.util.*;
import Javax.servlet.*;
import Javax.servlet.http.*;

public class DownLoad extends HttpServlet{
    public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
        doPost(request,response);
    }
    public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
        System.out.println("======DownLoad begin=====");