我编写了一个简短的程序,获取文件的路径,然后对其执行一些操作(交换行、交换字,然后将新文本保存在同一个文本文件中)。它是有效的,它走了这条路,我在那里没有任何问题。然后,我尝试创建一个简单的Java Swing接口,并尝试使用JTextField传递文件路径。这给了我一个错误:
文件名、目录名或卷标语法不正确
这是我在程序中使用的代码:
import java.io.*;
import java.util.*;
import java.util.stream.Collectors;
public class Fns {
//Indexes the words and lines in the file by adding them to a hashmap of String arrays
public HashMap<Integer,String[]> Separator(String file) throws IOException {
FileReader fileReader =
new FileReader(file);
BufferedReader bufferedReader =
new BufferedReader(fileReader);
List<String> lines = new ArrayList<String>();
String line;
while((line=bufferedReader.readLine()) != null){
lines.add(line);
}
String[] data = lines.toArray(new String[]{});
String singleData[];
HashMap<Integer,String[]> map=new HashMap<Integer, String[]>();
for(int i=0;i< data.length;i++){
singleData=data[i].split(" ");
map.put(i,singleData);
}
return map;
}
//Swaps Lines
public HashMap<Integer,String[]>lineChanger(int i, int j, HashMap<Integer,String[]> map){
String[] temp= map.get(j);
map.put(j, map.get(i));
map.put(i,temp);
return map;
}
//Swaps Words
public HashMap<Integer,String[]> wordChanger(int i,int j,int k,int l,HashMap<Integer,String[]> map){
String[] temp1=map.get(i);
String[] temp2=map.get(k);
String temp11=temp1[j];
String temp22=temp2[l];
temp1[j]=temp22;
temp2[l]=temp11;
map.put(i,temp1);
map.put(k,temp2);
return map;
}
//updates the file with the applied changes
public void fileChanger(HashMap<Integer,String[]> map,String file) throws IOException {
PrintWriter deleter=new PrintWriter(file);
deleter.print("");
deleter.close();
FileWriter fw=new FileWriter(file,true);
BufferedWriter bw=new BufferedWriter(fw);
PrintWriter pw=new PrintWriter(bw);
for(Integer key: map.keySet()){
String[] values=map.get(key);
pw.println(Arrays.stream(values).collect(Collectors.joining(" ")));
pw.flush();
}
pw.close();
bw.close();
fw.close();
}
}
这是我在界面上使用的代码:
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.util.HashMap;
public class GUI extends Fns implements ActionListener {
//Buttons,Labels and Textfields
static JButton Word_Swap=new JButton("Word Swap");
static JButton Line_Swap=new JButton("Line Swap");
static JButton Save=new JButton("Save");
static JTextField FileField=new JTextField(15);
static JTextField L1LS=new JTextField(15);
static JTextField L2LS=new JTextField(15);
static JTextField L1WS=new JTextField(15);
static JTextField L2WS=new JTextField(15);
static JTextField W1=new JTextField(15);
static JTextField W2=new JTextField(15);
public GUI(JPanel panel,JFrame frame,GridBagConstraints gbc){
//panel and frame config
panel.setBorder(BorderFactory.createEmptyBorder(30,30,10,30));
panel.setLayout(new GridBagLayout());
frame.add(panel,BorderLayout.CENTER);
frame.setSize(100,100);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("File Processing Application");
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
GridBagConstraints gbc=new GridBagConstraints();
JPanel panel=new JPanel();
JFrame frame=new JFrame();
GUI gui=new GUI(panel,frame,gbc);
gui.addLabel("Open File ", panel,1,1,1,1,gbc,0,0 );
gui.addTextField( panel,1,1,1,1,gbc,1,0 , gui.FileField);
gui.addLabel("Line Swap:", panel,20,2,2,2,gbc,0,1 );
gui.addLabel("Line 1", panel,20,0,1,1,gbc,0,2 );
gui.addTextField( panel,20,0,1,1,gbc,1,2, gui.L1LS );
gui.addLabel("Line 2", panel,20,0,1,1,gbc,0,3 );
gui.addTextField( panel,20,0,1,1,gbc,1,3, gui.L2LS );
gui.addButton( panel,40,4,1,1,gbc,1,4, gui.Line_Swap);
gui.addLabel("Word Swap:", panel,20,2,2,2,gbc,0,5 );
gui.addLabel("Line 1", panel,20,0,1,1,gbc,0,6 );
gui.addTextField(panel,20,0,1,5,gbc,1,6 , gui.L1WS);
gui.addLabel("Word 1", panel,20,0,1,20,gbc,2,6 );
gui.addTextField(panel,20,0,1,1,gbc,3,6, gui.L2WS );
gui.addLabel("Line 2", panel,20,0,1,1,gbc,0,7 );
gui.addTextField( panel,20,0,1,1,gbc,1,7, gui.W1 );
gui.addLabel("Word 2", panel,20,0,1,20,gbc,2,7 );
gui.addTextField( panel,20,0,1,1,gbc,3,7 ,gui.W2);
gui.addButton( panel,40,4,1,1,gbc,1,8, gui.Word_Swap);
gui.addButton( panel,80,0,1,0,gbc,0,9, gui.Save);
Line_Swap.addActionListener(
new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
Fns fns =new Fns();
try{
HashMap<Integer,String[]> map= fns.Separator(FileField.getText());
int i=Integer.parseInt(L1LS.getText());
int j=Integer.parseInt(L2LS.getText());
HashMap<Integer,String[]> map1=fns.lineChanger(i,j,map);
fns.fileChanger(map1,FileField.getText());
}
catch(IOException exception){
System.out.println(exception.getMessage());
}
}
}
);
}
//Methods for coordinates setup, and jpannel configuration
private void addButton( JPanel panel, int top, int left,int bottom,int right,GridBagConstraints gbc,int x,int y,JButton button) {
Insets i = new Insets(top, left, bottom, right);
gbc.insets = i;
gbc.gridx = x;
gbc.gridy = y;
panel.add(button, gbc);
}
private void addLabel( String name, JPanel panel, int top, int left,int bottom,int right,GridBagConstraints gbc,int x,int y) {
Insets i = new Insets(top, left, bottom, right);
gbc.insets = i;
gbc.gridx = x;
gbc.gridy = y;
panel.add(new JLabel(name) , gbc);
}
private void addTextField( JPanel panel, int top, int left,int bottom,int right,GridBagConstraints gbc,int x,int y,JTextField textField) {
Insets i = new Insets(top, left, bottom, right);
gbc.insets = i;
gbc.gridx = x;
gbc.gridy = y;
panel.add(textField, gbc);
}
@Override
public void actionPerformed(ActionEvent e) {
}
}
