java复制文件显示进度条代码_java在复制文件时使用进度条

青旅半醒 2022-11-03 04:12 290阅读 0赞

【实例简介】

【实例截图】

![dae81f37dcdaaba285be789084e52445.png][]

【核心代码】

package com.mingrisoft;

import java.awt.EventQueue;

import java.awt.FileDialog;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

import javax.swing.SwingUtilities;

import javax.swing.UIManager;

import javax.swing.border.EmptyBorder;

public class UserMonitorFrame extends JFrame implements Runnable \{

/\*\*

\*/

private static final long serialVersionUID = -746616564388262788L;

private JPanel contentPane;

private JTextField pathTextField;

private JTextField saveTextField;

/\*\*

\* Launch the application.

\*/

public static void main(String\[\] args) \{

EventQueue.invokeLater(new Runnable() \{

public void run() \{

try \{

UserMonitorFrame frame = new UserMonitorFrame();

frame.setVisible(true);

\} catch (Exception e) \{

e.printStackTrace();

\});

/\*\*

\* Create the frame.

\*/

public UserMonitorFrame() \{

setDefaultCloseOperation(JFrame.EXIT\_ON\_CLOSE);

setBounds(100, 100, 481, 231);

contentPane = new JPanel();

contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

setContentPane(contentPane);

contentPane.setLayout(null);

setTitle("在复制文件时使用进度条");

JPanel panel = new JPanel();

panel.setBounds(0, 0, 465, 262);

contentPane.add(panel);

panel.setLayout(null);

JLabel pathLabel = new JLabel("文件地址：");

pathLabel.setBounds(42, 45, 72, 15);

panel.add(pathLabel);

pathTextField = new JTextField();

pathTextField.setBounds(124, 42, 197, 21);

panel.add(pathTextField);

pathTextField.setColumns(10);

JButton pathButton = new JButton("选择文件");

pathButton.addActionListener(new ActionListener() \{

public void actionPerformed(ActionEvent arg0) \{

do\_pathButton\_actionPerformed(arg0);

\});

pathButton.setBounds(341, 41, 93, 23);

panel.add(pathButton);

JLabel saveLabel = new JLabel("复制地址：");

saveLabel.setBounds(42, 104, 72, 15);

panel.add(saveLabel);

saveTextField = new JTextField();

saveTextField.setBounds(124, 101, 197, 21);

panel.add(saveTextField);

saveTextField.setColumns(10);

JButton saveButton = new JButton("选择地址");

saveButton.addActionListener(new ActionListener() \{

public void actionPerformed(ActionEvent arg0) \{

do\_saveButton\_actionPerformed(arg0);

\});

saveButton.setBounds(341, 100, 93, 23);

panel.add(saveButton);

JButton copyButton = new JButton("确定复制");

copyButton.addActionListener(new ActionListener() \{

public void actionPerformed(ActionEvent arg0) \{

do\_copyButton\_actionPerformed(arg0);

\});

copyButton.setBounds(169, 145, 93, 23);

panel.add(copyButton);

// 定义获取只可以选择文件夹的选择框

public JFileChooser getChooser() \{

JFileChooser fd = new JFileChooser();

String windows = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";

try \{

UIManager.setLookAndFeel(windows);

\} catch (Exception e) \{

e.printStackTrace();

\}// 设置见面风格

SwingUtilities.updateComponentTreeUI(fd);// 使设置的界面风格生效

fd.setFileSelectionMode(JFileChooser.DIRECTORIES\_ONLY); // 指示只显示目录

fd.showOpenDialog(this);

return fd;

//选择要复制的文件按钮的单击事件

protected void do\_pathButton\_actionPerformed(ActionEvent arg0) \{

FileDialog fd=new FileDialog(this);

fd.setVisible(true);

String filePath = fd.getDirectory() fd.getFile();

pathTextField.setText(filePath);

//选择保存文件地址的按钮单击事件

protected void do\_saveButton\_actionPerformed(ActionEvent arg0) \{

JFileChooser fd = getChooser();

if ((fd.getSelectedFile() != null)

&& (!fd.getSelectedFile().equals(""))) \{

String strPath = fd.getSelectedFile().getPath();

saveTextField.setText(strPath);

//确定复制按钮单击事件

protected void do\_copyButton\_actionPerformed(ActionEvent arg0) \{

Thread thread = new Thread(this);

thread.start();

//应用多线程技术实现读取操作

@Override

public void run() \{

ProgressMonitorTest test = new ProgressMonitorTest();

String path = pathTextField.getText();

String save = saveTextField.getText();

test.useProgressMonitor(this,path,save path.substring(path.lastIndexOf("."),path.length()));

[dae81f37dcdaaba285be789084e52445.png]: /images/20221024/f0aaa0791dd84516acf8a9917b1d6df8.png

java复制文件显示进度条代码_java在复制文件时使用进度条

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