如果你曾用VB编写文件上传的组件的话,那么用JAVA编写文件上传的JAVABEAN十分容易。
下面的例子只是一个简版
package yuanyifileup;
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.PageContext;
public class yuanyifileup
{
private ServletRequest request;
private ServletResponse response;
private ServletConfig config;
ServletInputStream DATA;
int FormSize;
File f1;
FileOutputStream os;
DataInputStream is;
String filename;
byte[] b;
byte t;
boolean flag=false;
public yuanyifileup()
{ }
public void initialize(ServletConfig config,HttpServletRequest request,HttpServletResponse response) throws IOException
{
this.request=request;
this.response=response;
this.config=config;
DATA = request.getInputStream();
FormSize=request.getContentLength();
}
public void initialize(PageContext pageContext) throws IOException
{
request=pageContext.getRequest();
response=pageContext.getResponse();
config=pageContext.getServletConfig();
DATA = request.getInputStream();
FormSize=request.getContentLength();
}
public boolean setFilename(String s)
{
try
{
File f1=new File(s);
os=new FileOutputStream(f1);
}
catch(IOException e)
{return(false);}
return(true);
}
public void getByte()
{
int i=0;
try
{
is=new DataInputStream(DATA);
b=new byte[FormSize];
while (true)
{
try
{
t=is.readByte();
b[i]=t;
i++;
}
catch(EOFException e)
{ break;}
}
is.close();}
catch(IOException e)
{}
}
public boolean save()
{
int i=0,start1=0,start2=0;
String temp="";
if (!flag)
{
getByte();
flag=true;
}
try
{
temp=new String(b,"ISO8859_1");
}
catch(UnsupportedEncodingException e)

wpsystem文件夹是windows应用文件夹;创建WpSystem文件夹是为了存储某些特定“Microsoft Store”应用程序的数据,因此建议不要删该文件夹,因为删除之后就无法使用指定的应用。

winreagent是在系统更新或升级的过程中创建的文件夹;该文件夹中通常包含临时文件,当更新或升级失败时,系统将通过还原先前创建的临时文件来回滚到执行更新或升级过程之前的版本。

baidunetdiskdownload是百度网盘默认下载文件的文件夹;百度网盘是百度推出的一项云存储服务,只要下载东西到百度网盘里,都会默认保存到这个文件夹中,并且可跨终端随时随地查看和分享。

“usmt.ppkg”是windows自带的系统还原功能的系统备份文件;Windows系统还原是在不需要重新安装操作系统,也不会破坏数据文件的前提下使系统回到原有的工作状态,PBR恢复功能的备份文件就是“usmt.ppkg”。

如何在FastAPI中实现文件上传和处理FastAPI是一个现代化的高性能Web框架,简单易用且功能强大,它提供了原生支持文件上传和处理的功能。在本文中,我们将学习如何在FastAPI框架中实现文件上传和处理的功能,并提供代码示例来说明具体的实现步骤。首先,我们需要导入需要的库和模块:fromfastapiimportFastAPI,UploadF

备份文件的扩展名通常是“.bak”;bak文件是一个备份文件,这类文件一般在'.bak前面加上应该有原来的扩展名,有的则是由原文件的后缀名和bak混合而成,在生成了某种类型的文件后,就会自动生成它的备份文件。

thm是MP4或者MPG视频格式文件的索引文件,其本质上是一张jpg格式的图片;打开视频播放器除了需要MP4或者MPG格式的视频文件外,还会需要一个thm格式的索引文件才能播放,该文件可以用ACDSEE打开查看。

随着数字化时代的到来,音乐平台成为人们获取音乐的主要途径之一。然而,有时候我们在听歌的时候,发现没有歌词是一件十分困扰的事情。很多人都希望在听歌的时候能够显示歌词,以便更好地理解歌曲的内容和情感。而QQ音乐作为国内最大的音乐平台之一,也为用户提供了上传歌词的功能,使得用户可以更好地享受音乐的同时,感受到歌曲的内涵。下面将介绍一下在QQ音乐上如何上传歌词。首先


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