【实例简介】
【实例截图】
【核心代码】
package com.mingrisoft;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileFilter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
public class TextFileConcatenation extends JFrame {
/**
*
*/
private static final long serialVersionUID = 5224889437729791565L;
private JPanel contentPane;
private JTextField textField;
private File[] textFiles;
private JTextArea textArea;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
TextFileConcatenation frame = new TextFileConcatenation();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public TextFileConcatenation() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);
JPanel panel = new JPanel();
contentPane.add(panel, BorderLayout.NORTH);
JLabel fileLabel = new JLabel("\u6587\u4EF6\u5939\u6240\u5728\u4F4D\u7F6E\uFF1A");
panel.add(fileLabel);
textField = new JTextField();
panel.add(textField);
textField.setColumns(10);
JButton button = new JButton("\u9009\u62E9\u6587\u4EF6\u5939");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
do_button_actionPerformed(e);
}
});
panel.add(button);
JScrollPane scrollPane = new JScrollPane();
contentPane.add(scrollPane, BorderLayout.CENTER);
textArea = new JTextArea();
scrollPane.setViewportView(textArea);
JPanel buttonPanel = new JPanel();
contentPane.add(buttonPanel, BorderLayout.SOUTH);
JButton concatButton = new JButton("\u5408\u5E76\u6587\u4EF6");
concatButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
do_concatButton_actionPerformed(e);
}
});
buttonPanel.add(concatButton);
}
protected void do_button_actionPerformed(ActionEvent e) {
JFileChooser chooser = new JFileChooser();
chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
chooser.setMultiSelectionEnabled(false);
int result = chooser.showOpenDialog(this);
if (result == JFileChooser.APPROVE_OPTION) {
File selectFile = chooser.getSelectedFile();
textField.setText(selectFile.getAbsolutePath());
textFiles = selectFile.listFiles(new FileFilter() {
@Override
public boolean accept(File pathname) {
if (pathname.getAbsolutePath().endsWith(".txt")) {
return true;
} else {
return false;
}
}
});
for (File textFile : textFiles) {
textArea.append(textFile.getAbsolutePath() "\n\r");
}
}
}
protected void do_concatButton_actionPerformed(ActionEvent e) {
if (textFiles == null) {
JOptionPane.showMessageDialog(this, "请选择文件文件位置！", "警告信息", JOptionPane.WARNING_MESSAGE);
return;
}
if (textFiles.length == 0) {
JOptionPane.showMessageDialog(this, "文件夹中不包括文本文件！", "警告信息", JOptionPane.WARNING_MESSAGE);
return;
}
BufferedReader reader = null;
FileWriter writer = null;
try {
writer = new FileWriter("d://concatenation.txt");// 创建文件输出流
for (File textFile : textFiles) {// 遍历用户选择的文本文件
reader = new BufferedReader(new FileReader(textFile));// 创建缓冲输入流
String line;
while ((line = reader.readLine()) != null) {
writer.write(line);// 将读入的数据写入到文件中
}
}
JOptionPane.showMessageDialog(this, "文件合并成功！", "提示信息", JOptionPane.INFORMATION_MESSAGE);
return;
} catch (IOException e1) {
e1.printStackTrace();
} finally {
if (writer != null) {
try {
writer.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
if (reader != null) {
try {
reader.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
}
