文件上传smart

最新推荐文章于 2024-06-19 14:49:55 发布

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本文介绍了一种基于SmartUpload框架的高效文件上传与管理方法，包括文件上传、重命名及保存流程，支持单文件和多文件上传。

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package com.bdqn.zhp.util;

import java.text.SimpleDateFormat;
import java.util.Date;

import javax.servlet.ServletConfig;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.jspsmart.upload.File;
import com.jspsmart.upload.Request;
import com.jspsmart.upload.SmartUpload;

public class MyUpload {

   private Request request;
   private String fileName;
   private String[] fileNames;
   private SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmmssSSS");
   private static int count;

   public int getCount(){
       count++;
       if(count>=1000){
           count=0;
       }
       return count;
   }


   public void upload(ServletConfig config,HttpServletRequest request,HttpServletResponse response){

               try {
                   //文件上传
                   SmartUpload su = new SmartUpload();

//                   su.setMaxFileSize(1000);


                   su.initialize(config, request, response);
                   su.setMaxFileSize(1024);
                   su.setAllowedFilesList("PNG,png");//只允许上传的文件类型
                   su.upload();

                   this.request = su.getRequest();

                   File file = su.getFiles().getFile(0);

                   //获取客户端选择文件名称
//                   fileName = file.getFileName();

                   //文件重命名
                   String ext = file.getFileExt();///获取文件原有扩展名
//                   saveFileName = System.currentTimeMillis()+"."+ext;
                   fileName = format.format(new Date())+getCount()+"."+ext;

                   //文件另存为到upload文件夹中
                   file.saveAs("upload/"+fileName);


               } catch (Exception e) {
                   // TODO Auto-generated catch block
                   e.printStackTrace();
               }
   }

   /**
   * 多文件上传
   * @param config
   * @param request
   * @param response
   */
   public void uploads(ServletConfig config,HttpServletRequest request,HttpServletResponse response){

       try {
           //文件上传
           SmartUpload su = new SmartUpload();
           su.initialize(config, request, response);
           su.upload();


           this.request = su.getRequest();

           //获取文件个数
           int count = su.getFiles().getCount();

           fileNames = new String[count];

           for(int i=0;i<count;i++){
               File file = su.getFiles().getFile(i);

               //文件重命名
               String ext = file.getFileExt();///获取文件原有扩展名

               fileNames[i] = format.format(new Date())+getCount()+"."+ext;

               //文件另存为到upload文件夹中
               file.saveAs("upload/"+fileNames[i]);
           }





       } catch (Exception e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       }
}

   public Request getRequest(){
       return request;
   }
   public String getFileName(){
       return fileName;
   }

   public String[] getFileNames() {
       return fileNames;
   }

   public void setFileNames(String[] fileNames) {
       this.fileNames = fileNames;
   }

}