基本信息
源码名称:java解压缩文件到指定文件夹(java.util.zip)示例
源码大小:3.64KB
文件格式:.zip
开发语言:Java
更新时间:2019-07-21
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源码介绍
package com.mingrisoft;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.table.DefaultTableModel;
public class UnZipTextFileFrame extends JFrame {
/**
*
*/
private static final long serialVersionUID = -7525621255251725313L;
private JPanel contentPane;
private JTextField sourceTextField;
private JTable table;
private File zipFile;
private JTextField targetTextField;
private File targetFile;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
UnZipTextFileFrame frame = new UnZipTextFileFrame();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public UnZipTextFileFrame() {
setTitle("\u538B\u7F29\u5305\u89E3\u538B\u5230\u6307\u5B9A\u6587\u4EF6\u5939");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(new BorderLayout(0, 0));
JPanel choosePanel = new JPanel();
contentPane.add(choosePanel, BorderLayout.NORTH);
sourceTextField = new JTextField();
choosePanel.add(sourceTextField);
sourceTextField.setColumns(10);
JButton sourceButton = new JButton("Zip\u6587\u4EF6");
sourceButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
do_sourceButton_actionPerformed(arg0);
}
});
choosePanel.add(sourceButton);
targetTextField = new JTextField();
choosePanel.add(targetTextField);
targetTextField.setColumns(10);
JButton targetButton = new JButton("\u89E3\u538B\u5230");
targetButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
do_targetButton_actionPerformed(arg0);
}
});
choosePanel.add(targetButton);
JPanel buttonPanel = new JPanel();
contentPane.add(buttonPanel, BorderLayout.SOUTH);
JButton unzipButton = new JButton("\u5F00\u59CB\u89E3\u538B\u7F29");
unzipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
do_unzipButton_actionPerformed(arg0);
}
});
buttonPanel.add(unzipButton);
JScrollPane scrollPane = new JScrollPane();
contentPane.add(scrollPane, BorderLayout.CENTER);
table = new JTable();
scrollPane.setViewportView(table);
}
protected void do_sourceButton_actionPerformed(ActionEvent arg0) {
JFileChooser fileChooser = new JFileChooser();
fileChooser.setFileFilter(new FileNameExtensionFilter("文本文件", "zip"));
fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
int result = fileChooser.showOpenDialog(this);
if (result == JFileChooser.APPROVE_OPTION) {
zipFile = fileChooser.getSelectedFile();
sourceTextField.setText(zipFile.getAbsolutePath());
}
}
protected void do_targetButton_actionPerformed(ActionEvent arg0) {
JFileChooser fileChooser = new JFileChooser();
fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
int result = fileChooser.showOpenDialog(this);
if (result == JFileChooser.APPROVE_OPTION) {
targetFile = fileChooser.getSelectedFile();
targetTextField.setText(targetFile.getAbsolutePath());
}
}
@SuppressWarnings("rawtypes")
protected void do_unzipButton_actionPerformed(ActionEvent arg0) {
DefaultTableModel model = (DefaultTableModel) table.getModel();// 获得表格模型
model.setColumnIdentifiers(new Object[] { "序号", "文件名" });// 设置表头
int id = 1;// 声明序号变量
ZipFile zf = null;
try {
zf = new ZipFile(zipFile);// 利用用户选择的ZIP文件创建ZipFile对象
Enumeration e = zf.entries();// 创建枚举变量
while (e.hasMoreElements()) {// 遍历枚举变量
ZipEntry entry = (ZipEntry) e.nextElement();// 获得ZipEntry对象
if (!entry.getName().endsWith(".txt")) {// 如果不是文本文件就不进行解压缩
continue;
}
// 利用用户选择的文件夹和ZipEntry对象名称创建解压后的文件
File currentFile = new File(targetFile File.separator entry.getName());
FileOutputStream out = new FileOutputStream(currentFile);
InputStream in = zf.getInputStream(entry);// 利用获得的ZipEntry对象的输入流
int buffer = 0;
while ((buffer = in.read()) != -1) {// 将输入流写入到本地文件
out.write(buffer);
}
model.addRow(new Object[] { id , currentFile.getName() });// 增加一行表格数据
in.close();// 释放资源
out.close();
}
table.setModel(model);// 更新表格
JOptionPane.showMessageDialog(this, "解压缩完成");// 提示用户解压缩完成
} catch (ZipException e) {// 捕获异常
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (zf != null) {
try {
zf.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}