JavaWeb-SmartUpload的封装类

最新推荐文章于 2022-05-14 20:47:01 发布

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本文介绍了一个用于JavaWeb环境的SmartUpload文件上传与处理的封装类，包括初始化、参数设置、文件上传、后缀名检查、获取文件路径以及保存文件等功能。通过封装，简化了文件上传的复杂操作，提高了开发效率。

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JavaWeb-SmartUpload的封装类

package com.mrcode.include;
import com.jspsmart.upload.SmartUpload;
import java.util.ArrayList;

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

import com.jspsmart.upload.Request;
import com.jspsmart.upload.File;
import com.jspsmart.upload.SmartUploadException;
import javax.servlet.ServletException;
import java.io.IOException;
import java.sql.SQLException;

public class SmartUploadFiles
{
private SmartUpload smartUpload = null;
//private ArrayList[] suffix = new ArrayList[]{new String("gif"), new String("jpg"), new String("jpeg")}; //不兼容的类型
//private ArrayList<String>[] suffix = new ArrayList<String>[]{new String("gif"), new String("jpg"), new String("jpeg")};//不兼容的类型
private ArrayList suffix = new ArrayList();
private ArrayList filepaths = new ArrayList();

public SmartUploadFiles(SmartUpload smartUpload)
{
  this.smartUpload = smartUpload;
}
/*
//第一步：smartUpload.initialize必须首先执行，
public void initUpload(ServletConfig servletConfig, HttpServletRequest request, HttpServletResponse response)
throws ServletException
{
  smartUpload.initialize(servletConfig, request, response);
}
*/
public void setParameter(long filesize, String deniedfiles)
throws ServletException, IOException, SQLException
{
  smartUpload.setMaxFileSize(filesize);
  smartUpload.setDeniedFilesList(deniedfiles);
}
//第二步：smartUpload.upload()
public void upload()
throws ServletException, IOException, SmartUploadException
{
  smartUpload.upload();
}

public Request getSmartUploadRequest()
{
  return smartUpload.getRequest();
}
//填充文件后缀名
public void setSuffix()
{
  suffix.add(new String("gif"));
  suffix.add(new String("jpg"));
  suffix.add(new String("jpeg"));
}

//后缀名的检查的方式需要借用
public boolean isHaveSuffix()
{
  boolean isSuffix = false;
  for(int i=0; i<smartUpload.getFiles().getCount(); i++)
  {
   File file = smartUpload.getFiles().getFile(i);

   if(file.isMissing())
   {
    continue;
   }
   int count = 0;
   for(int j=0; j<suffix.size(); j++)
   {
    System.out.println(suffix.size());
    System.out.println(suffix.get(j));
    System.out.println(file.getFileName().substring(file.getFileName().lastIndexOf('.') + 1));
    //if(suffix.get(j) != file.getFileName().substring(file.getFileName().lastIndexOf('.') + 1))
    if(!suffix.get(j).equals(file.getFileName().substring(file.getFileName().lastIndexOf('.') + 1)))
    {
     count++;
     System.out.println(count);
     //if((count.toString()).equals((suffix.size()).toString()))
     if(suffix.size() == count)
     {
      System.out.println("break");
      //break;
      isSuffix = false;
      return isSuffix;
     }
     continue;
    }
    isSuffix = true;
   }
  }
  return isSuffix;
}

public ArrayList getFilePaths(String savePath)
{
  for(int i=0; i<smartUpload.getFiles().getCount(); i++)
  {
   File file = smartUpload.getFiles().getFile(i);

   if(file.isMissing())
   {
    continue;
   }
   //把上传的文件路径放进数组
   filepaths.add(savePath + file.getFileName());
  }
  return filepaths;
}

public void saveAs(String savepath)
throws IOException
{
  for(int i=0; i<smartUpload.getFiles().getCount(); i++)
  {
   File file = smartUpload.getFiles().getFile(i);

   if(file.isMissing())
   {
    continue;
   }
   /*
   int have = 0;
   for(int i=0; i<suffix.size(); i++)
   {
    if(suffix[i] != file.getFileName().substring(file.getFileName().lastIndexOf('.') + 1))
    {
     continue;
    }
    have = 1;
   }
   */
   //判断后缀名

   //把上传的文件路径放进数组
   //filepaths.add(savepath + file.getFileName());
   try
   {
    file.saveAs(savepath + file.getFileName());
   }
   catch(SmartUploadException e)
   {
    e.printStackTrace();
   }
  }
}

}