大文件的分割与合并代码,Java代码库,德仔网

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【Java】大文件的分割与合并
作者:周明瑞 / 发布于2013/2/17/ 886
java处理大文件的分割与合并，电影等，文本文件没有尝试，我也说不好行不行，今天忙了很长时间才设计出的界面
package com.mingrui.test;
import java.io.*;
import java.util.Enumeration;
import java.util.Vector;
import java.awt.*;
import java.awt.event.*;

import javax.media.rtp.event.NewParticipantEvent;
import javax.swing.*;
public class Test18_15 extends JFrame{
	private int part=2;
	private File file=null;
	private File []files=null;
	//icon
	private ImageIcon icon_but_fege_right=new ImageIcon("img/fen_ge_right.png");
	private ImageIcon icon_but_hebing_ringht=new ImageIcon("img/he_bing_right.png");
	private ImageIcon icon_tiaofu=new ImageIcon("img/tiao_fu.jpg");
	private ImageIcon icon_but_hebing=new ImageIcon("img/but_hebing.png");
	private ImageIcon icon_jl_hebing=new ImageIcon("img/hebing_left.png");
	private ImageIcon icon_mr=new ImageIcon("img/mr.png");
	//jlabel
	private JLabel jl_tiaofu=new JLabel(new ImageIcon("img/icon_tiaofu.png"));
	private JLabel jl_hebing=new JLabel(new ImageIcon("img/hebing_left.png"));
	//jbutton
	private JButton jb_hebing_right=new JButton("???",new ImageIcon("img/he_bing_right.png"));
	private JButton jb_fege_right=new JButton("???",new ImageIcon("img/fen_ge_right.png"));
	private JButton jb_hebing=new JButton("????????????",new ImageIcon("img/but_hebing.png"));
	private JButton jb_fege=new JButton("???????????",new ImageIcon("img/but_fenge.png"));
	private JButton jb_zouni=new JButton(new ImageIcon("img/zouni.png"));
	private JButton jb_zouni1=new JButton(new ImageIcon("img/zouni.png"));
	//jpanel
	private JPanel jp_right=new JPanel();
	private JPanel jp_bottom_total=new JPanel();
	private JPanel jp_left=new JPanel();
	private JPanel jp_left_up_hebing=new JPanel();
	private JPanel jp_left_up_fenge=new JPanel();
	private JPanel jp_left_hebing=new JPanel();
	private JPanel jp_left_fenge=new JPanel();
	//????
	private CardLayout cl=new CardLayout();
	//????
	private DrawPanel dp_fenge=new DrawPanel();
	private DrawPanel dp_hebing=new DrawPanel();
	//?????б?
	private JComboBox jcbo;
	private String[] str={"2","3","4","5","6"};
	private FileSeparate fsp;
	private FileCombiner fcb;
	Test18_15(){
		super("??????????");
		super.setIconImage(icon_mr.getImage());
		fsp=new FileSeparate(dp_fenge);
		fcb=new FileCombiner(dp_hebing);
		
		jb_fege_right.setBorderPainted(false);
		jb_hebing_right.setBorderPainted(false);
		jb_fege_right.setBackground(new Color(2766386));
		jb_hebing_right.setBackground(new Color(2766386));
		jb_zouni.setBackground(new Color(2766386));
		jb_zouni1.setBackground(new Color(2766386));
		jcbo=new JComboBox<>(str);
		jcbo.setBackground(new Color(2981939));
		jp_left.setLayout(cl);
		dp_hebing.setBackground(new Color(14015449));
		jp_left.add(jp_left_hebing, "hebing");
		jp_left.add(jp_left_fenge,"fenge");
		jp_right.setLayout(new GridLayout(2, 1));
		jp_right.add(jb_fege_right);
		jp_right.add(jb_hebing_right);
		//???????
		jp_left_up_hebing.setBackground(new Color(2766386));
		//jb_hebing.setBackground(new Color(2766386));
		jp_left_up_hebing.add(jb_hebing);
		jp_left_up_hebing.add(jl_hebing);
		jp_left_up_hebing.add(jb_zouni);
		jp_left_up_fenge.setBackground(new Color(2766386));
		jp_left_up_fenge.add(jb_fege);
		jp_left_up_fenge.add(jcbo);
		jp_left_up_fenge.add(jb_zouni1);
		jp_left_hebing.setLayout(new BorderLayout());
		jp_left_fenge.setLayout(new BorderLayout());
		jp_left_hebing.add(jp_left_up_hebing,BorderLayout.NORTH);
		jp_left_hebing.add(dp_hebing,BorderLayout.CENTER);
		jp_left_fenge.add(jp_left_up_fenge,BorderLayout.NORTH);
		jp_left_fenge.add(dp_fenge,BorderLayout.CENTER);
		jp_bottom_total.setLayout(new BorderLayout());
		jp_bottom_total.add(jp_left,BorderLayout.CENTER);
		jp_bottom_total.add(jp_right,BorderLayout.EAST);
		setLayout(new BorderLayout());		
		add(jl_tiaofu,BorderLayout.NORTH);
		add(jp_bottom_total,BorderLayout.CENTER);
		jb_fege_right.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				cl.show(jp_left, "fenge");
			}
		});
		jb_hebing_right.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				cl.show(jp_left, "hebing");
			}
		});
		jb_hebing.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				dp_hebing.setStr1("being choose your file");
				dp_hebing.repaint();
				JFileChooser jfc=new JFileChooser();
				jfc.setMultiSelectionEnabled(true);
				int returnVal=jfc.showOpenDialog(null);		
				if(returnVal==JFileChooser.APPROVE_OPTION){
					files=jfc.getSelectedFiles();
				}
			}
		});
		jb_fege.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				JFileChooser jfc=new JFileChooser();
				int returnVal=jfc.showOpenDialog(null);
				//jfc.setMultiSelectionEnabled(true);
				//jfc.setCurrentDirectory(new File(""));
				if(returnVal==JFileChooser.APPROVE_OPTION){
					file=jfc.getSelectedFile();
				}
			}
		});
		jb_zouni.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				if(files!=null)
					fcb.setFiles(files);
					try {
						fcb.setFile();
					} catch (IOException e1) {
						// TODO Auto-generated catch block
						e1.printStackTrace();
					}
			}
		});
		jb_zouni1.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				if(file!=null){
					fsp.setFileCount(part);
					fsp.setFile(file);
				}
					
			}
		});
		jcbo.addItemListener(new ItemListener() {
			
			@Override
			public void itemStateChanged(ItemEvent e) {
				// TODO Auto-generated method stub
				part=jcbo.getSelectedIndex()+2;
			}
		});
	}
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Test18_15 frame=new Test18_15();
		frame.setSize(600,550);
		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(3);
		frame.setVisible(true);
		frame.setResizable(false);
	}
	
}
class DrawPanel extends JPanel{
	private Color colorWord;
	private Color colorLine;
	private String str="you are being the file function panel";
	private String str1="processing......";
	private String str2="file location:";
	private String str3="";
	protected void paintComponent(Graphics g){
		super.paintComponent(g);
		g.setColor(colorLine);
		g.drawLine(0, 10, getWidth(), 10);
		g.drawLine(0, 12, getWidth(), 12);
		g.drawLine(getWidth()-10, 0, getWidth()-10, getHeight());
		g.drawLine(0, getHeight()-10, getWidth(), getHeight()-10);
		g.drawLine(0, getHeight()-8, getWidth(), getHeight()-8);
		g.drawLine(0, getHeight()-12, getWidth(), getHeight()-12);
		g.drawLine(0, getHeight()-14, getWidth(), getHeight()-14);
		g.drawLine(10, 0, 10, getWidth());
		g.drawLine(12, 0, 12, getWidth());
		g.drawLine(14, 0, 14, getWidth());
		g.drawLine(16, 0, 16, getWidth());
		g.setColor(new Color(11118449));
		g.setFont(new Font("Brush script MT",Font.ITALIC,25));
		g.drawString(str, 23, 35);
		g.setColor(Color.red);
		g.drawString(str1, 23, 65);
		g.drawString(str2, 23, 95);
		g.drawString(str3, 23, 125);
		g.setFont(new Font("Microsoft YaHei UI",Font.BOLD,15));
		g.setColor(Color.green);
		g.drawString("?????????????", 23, 248);
		g.drawString("??????????????в???", 23, 288);
		g.setColor(Color.orange);
		g.drawString("??????????????????????С??---????", 23, 328);
	}
	public Color getColorWord() {
		return colorWord;
	}
	public void setColorWord(Color colorWord) {
		this.colorWord = colorWord;
	}
	public Color getColorLine() {
		return colorLine;
	}
	public void setColorLine(Color colorLine) {
		this.colorLine = colorLine;
	}
	public void setStr(String str){
		this.str=str;
	}
	public void setStr1(String str1){
		this.str1=str1;
	}
	public void setStr3(String str3){
		this.str3=str3;
	}
}
class FileSeparate{
	private int fileCount=0;
	private int soloFileSize=0;
	private byte [] buf;
	private boolean isTxt=false;
	private static final String OUTFILES="D:";
	private DataOutputStream [] doss;
	DrawPanel dp;
	//private BufferedWriter [] buw;
	FileSeparate(DrawPanel dp){
		this.dp=dp;
	}
	public void setTxt(boolean isTxt){
		this.isTxt=isTxt;
	}
	public boolean isTxt(){
		return isTxt;
	}
	public void setFile(File file){
		try {
			doss=new DataOutputStream[fileCount];		
			this.setFileCount(fileCount);
			DataInputStream dis=new DataInputStream(new BufferedInputStream(new FileInputStream(file)));
			int cl=0;
			if(!isTxt){
				int l=dis.available()/1024/1024;
				soloFileSize=(int)(l/fileCount)+1;
				if(soloFileSize>=1&&soloFileSize<=300)
					buf=new byte[soloFileSize*1024*1024];
				for(int i=0;i<fileCount;i++){
					doss[i]=new DataOutputStream(new BufferedOutputStream(new FileOutputStream(new File("d:/"+i+".part"))));
				}
				while(dis.read(buf)!=-1){
					doss[cl].write(buf);
					doss[cl++].close();
				}
				dp.setColorWord(new Color(8388608));
				dp.setStr1("yes we have finished");
				dp.setStr3("D???μ?x.part");
				dp.repaint();
			}
			else{}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	public String getFileDirectory(){
		return OUTFILES;
	}
	public int getFileCount() {
		return fileCount;
	}
	public void setFileCount(int fileCount) {
		this.fileCount = fileCount;
	}

}

class FileCombiner{
	private File []files;
	private int fileCount=0;
	private byte []buf=new byte[1024*1024];
	private static final String OUTFILES="D:\finished.file";
	private DrawPanel dp;
	FileCombiner(DrawPanel dp){
		this.dp=dp;
	}
	public void setFile() throws IOException{
		Vector<DataInputStream> v=new Vector<DataInputStream>();
		for(int i=0;i<files.length;i++){
			v.add(new DataInputStream(new BufferedInputStream(new FileInputStream(files[i]))));
		}
		Enumeration e=v.elements();
		SequenceInputStream sis=new SequenceInputStream(e);

		DataOutputStream dos=new DataOutputStream(new BufferedOutputStream(new FileOutputStream("D:/finished.file")));
		while(sis.read(buf)!=-1){
			dos.write(buf);
		}
		dp.setColorWord(new Color(8388608));
		dp.setStr1("yes all have done");
		dp.repaint();
		dp.setStr3("D???μ?finished.file");
		dos.close();
		sis.close();
	}
	public String getFileDirectory(){
		return OUTFILES;
	}
	public int getFileCount() {
		return fileCount;
	}
	public void setFileCount(int fileCount) {
		this.fileCount = fileCount;
	}
	public File [] getFiles() {
		return files;
	}
	public void setFiles(File [] files) {
		this.files = files;
	}
	
}
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