源码搜藏网

工具类：

import java.awt.FlowLayout;

import java.awt.Toolkit;

import java.awt.event.ActionListener;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

public class FileSplitUtilClass {

public static int data;//拆分的个数；

public static String str;

public static boolean split(File filePath,int number) {

byte[] b=new byte[number];

str=filePath.getAbsolutePath();

int i=0;//创建文件

try {

FileInputStream file=new FileInputStream(filePath);

try {

while(file.read(b)!=-1){

i++;

FileOutputStream fileout=new FileOutputStream(str+i);

fileout.write(b);

}

file.close();

FileSplitUtilClass.data=i;

filePath.delete();

return true;

}catch (IOException e) {

// TODO Auto-generated catch block

System.out.println("split error");

e.printStackTrace();return false;

}

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

System.out.println("no find");

e.printStackTrace();return false;

}

}

////////////////////////////////////////

public static void fixFile(File filePath){

byte[] b=new byte[1024];

// String str=filePath.getAbsolutePath();

int i=0;//创建文件

try {

FileOutputStream file=new FileOutputStream(filePath);

try {

System.out.println(FileSplitUtilClass.data);

while(true&i<FileSplitUtilClass.data){

i++;

FileInputStream file1=new FileInputStream(FileSplitUtilClass.str+i);

if(file1.read(b)!=-1){

file.write(b);

}else{

break;

}

}

}catch (IOException e) {

// TODO Auto-generated catch block

System.out.println("no file");

e.printStackTrace();

}

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

System.out.println("failure");

e.printStackTrace();

}

}

/////////////////////

public static JFrame getJFrame(String JFrameName){

JFrame jf=new JFrame(JFrameName);

Toolkit tk=Toolkit.getDefaultToolkit();

jf.setSize(500,330);

jf.setLocation((tk.getScreenSize().width-jf.getWidth())/2,(tk.getScreenSize().height-jf.getHeight())/2);

return jf;

}

//////////////////////////

public static JPanel getJButton(String JButtonName1,String JButtonName2,Object obj){

JPanel jp=new JPanel(new FlowLayout());

JButton jb1=new JButton(JButtonName1);

jb1.addActionListener((ActionListener) obj);

JButton jb2=new JButton(JButtonName2);

jb2.addActionListener((ActionListener)obj);

jp.add(jb1);

jp.add(jb2);

return jp;

}

///////////////////////////////////////

}

检测类：

import java.awt.BorderLayout;

import java.awt.FlowLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.File;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

public class Split implements ActionListener {

JFrame jf;JTextField jt;int number;

public Split(){

jf=FileSplitUtilClass.getJFrame("Filesplit");

JPanel jp=FileSplitUtilClass.getJButton("拆分","组合", this);

jt=new JTextField(10);

JLabel jl=new JLabel("输入字节大小");

JPanel jp1=new JPanel(new FlowLayout());

jp1.add(jl);jp1.add(jt);

jf.add(jp1,BorderLayout.CENTER);

jf.add(jp,BorderLayout.SOUTH);

jf.setVisible(true);

javax.swing.JOptionPane.showMessageDialog(jf,"请输入字节");

jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

public void actionPerformed(ActionEvent arg0) {

// TODO Auto-generated method stub

String str=arg0.getActionCommand();

if("拆分".equals(str)){

JFileChooser jfc=new JFileChooser();

jfc.showOpenDialog(null);//注意在这里的null表示对话框弹出的位置；

if(jfc.showOpenDialog(null)==JFileChooser.APPROVE_OPTION){

File filePath=jfc.getSelectedFile();

if(FileSplitUtilClass.split(filePath,Integer.parseInt(jt.getText()))){

javax.swing.JOptionPane.showMessageDialog(jf,"ok");

}else{

javax.swing.JOptionPane.showMessageDialog(jf,"fail");

}