fileprocessor.java

可以上传本地文件

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * Fileprocessor.java
 *
 * Created on 2009-2-22, 2:53:41
 */

package fi.mamk.fileprocessor;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.swing.JFileChooser;

/**
 *
 * @author Sun Wen(A5250)
 * I add a replace funtion.
 */
public class Fileprocessor extends javax.swing.JFrame {
    File file;
    Pattern p;
    Matcher m;

    /** Creates new form Fileprocessor */
    public Fileprocessor() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jFileChooser1 = new javax.swing.JFileChooser();
        select = new javax.swing.JButton();
        search = new javax.swing.JButton();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        filename = new java.awt.TextArea();
        text = new java.awt.TextArea();
        output = new java.awt.TextArea();
        jLabel3 = new javax.swing.JLabel();
        replacetext = new java.awt.TextArea();
        replace = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        textoutput = new javax.swing.JTextArea();
        jScrollPane2 = new javax.swing.JScrollPane();
        replaceoutput = new javax.swing.JTextArea();
        jLabel4 = new javax.swing.JLabel();
        jLabel5 = new javax.swing.JLabel();
        jLabel6 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("File Processor");

        select.setText("Select File");
        select.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                selectActionPerformed(evt);
            }
        });

        search.setText("Search");
        search.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                searchActionPerformed(evt);
            }
        });

        jLabel1.setFont(new java.awt.Font("Comic Sans MS", 1, 12)); // NOI18N
        jLabel1.setText("Currently select a file");

        jLabel2.setFont(new java.awt.Font("Comic Sans MS", 1, 12)); // NOI18N
        jLabel2.setText("Write text to search");

        jLabel3.setFont(new java.awt.Font("Comic Sans MS", 1, 12)); // NOI18N
        jLabel3.setText("Write text to replace");

        replace.setText("Replace");
        replace.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                replaceActionPerformed(evt);
            }
        });

        textoutput.setColumns(20);
        textoutput.setRows(5);
        jScrollPane1.setViewportView(textoutput);

        replaceoutput.setColumns(20);
        replaceoutput.setRows(5);
        jScrollPane2.setViewportView(replaceoutput);

        jLabel4.setText("Replaced");

        jLabel5.setText("Original");

        jLabel6.setFont(new java.awt.Font("Comic Sans MS", 1, 12)); // NOI18N
        jLabel6.setText("Result");

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                        .add(filename, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 489, Short.MAX_VALUE)
                        .addContainerGap())
                    .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                            .add(layout.createSequentialGroup()
                                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                                    .add(select)
                                    .add(jLabel1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 239, Short.MAX_VALUE)
                                    .add(search, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 96, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                                    .add(text, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 239, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED))
                            .add(layout.createSequentialGroup()
                                .add(jLabel2)
                                .add(111, 111, 111)))
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                            .add(jLabel3)
                            .add(replace, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 96, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                            .add(replacetext, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 240, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                        .addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                    .add(layout.createSequentialGroup()
                        .add(jLabel4)
                        .addContainerGap(451, Short.MAX_VALUE))
                    .add(layout.createSequentialGroup()
                        .add(jLabel6)
                        .addContainerGap(463, Short.MAX_VALUE))
                    .add(layout.createSequentialGroup()
                        .add(output, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 489, Short.MAX_VALUE)
                        .addContainerGap())
                    .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                            .add(org.jdesktop.layout.GroupLayout.LEADING, jScrollPane2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 489, Short.MAX_VALUE)
                            .add(jScrollPane1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 489, Short.MAX_VALUE))
                        .addContainerGap())
                    .add(layout.createSequentialGroup()
                        .add(jLabel5)
                        .addContainerGap(451, Short.MAX_VALUE))))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(select)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
                .add(jLabel1)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(filename, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 25, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel2)
                    .add(jLabel3))
                .add(10, 10, 10)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(text, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 25, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(replacetext, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 25, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(search)
                    .add(replace))
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
                .add(jLabel6)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(output, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 25, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .add(18, 18, 18)
                .add(jLabel5)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(jScrollPane1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 157, Short.MAX_VALUE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(jLabel4)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
                .add(jScrollPane2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 185, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void selectActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_selectActionPerformed
        textoutput.setText("");

        // Set the file chooser properties
        jFileChooser1.setDialogTitle("Select a file to open");

        // Show the open file dialog to the user
        int returnVal = jFileChooser1.showOpenDialog(this);

        if ( returnVal == JFileChooser.APPROVE_OPTION ) {
            // User has approved the open file action (pressed the open button)

            // Get the file information
            file = jFileChooser1.getSelectedFile();
            filename.append(file.getAbsolutePath());
        }
        // Read the contents of the selected file
            try {
                // Open a FileInputStream from the file
                FileInputStream fis = new FileInputStream(file);

                // Buffer the input stream for faster reading
                BufferedReader bufReader = new BufferedReader( new InputStreamReader(fis) );

                // Read the contents of the file
                while( bufReader.ready() ) {
                    textoutput.append( bufReader.readLine() + "\n" );
                }

                // Close the streams
                bufReader.close();
                fis.close();

            } catch (FileNotFoundException ex) {
                System.out.println("There was error in opening the file: " + ex.getMessage() );
            } catch (IOException ex) {
                System.out.println("There was error in reading the file: " + ex.getMessage() );
            }
    }//GEN-LAST:event_selectActionPerformed

    private void searchActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_searchActionPerformed

          int count=0;
        try {
                output.setText("");
                // Open a FileInputStream from the file
                FileInputStream fis = new FileInputStream(file);

                // Buffer the input stream for faster reading
                BufferedReader bufReader = new BufferedReader( new InputStreamReader(fis) );              

                // pattern is used for set a specific string to be a templet
                // matcher is used for search the templet in a specific string
                //matcher.find() is a boolean value that shows whether the string contains the pattern.
                while(bufReader.ready()){
                    p = Pattern.compile(text.getText());
                    m = p.matcher(bufReader.readLine());
                    while (m.find()){
                        count++;
                    }
                }
               

                output.append("There are "+count+" "+"\'"+text.getText()+"\'"+" in this file.");

                // Close the streams
                bufReader.close();
                fis.close();

            } catch (FileNotFoundException ex) {
                System.out.println("There was error in opening the file: " + ex.getMessage() );
            } catch (IOException ex) {
                System.out.println("There was error in reading the file: " + ex.getMessage() );
            }

    }//GEN-LAST:event_searchActionPerformed

    private void replaceActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_replaceActionPerformed
        try {
                replaceoutput.setText("");
                // Open a FileInputStream from the file
                FileInputStream fis = new FileInputStream(file);

                // Buffer the input stream for faster reading
                BufferedReader bufReader = new BufferedReader( new InputStreamReader(fis) );

               while( bufReader.ready() ) {   
                     String rep=bufReader.readLine().replaceAll(text.getText(), replacetext.getText());
                     replaceoutput.append( rep + "\n" );
                }
                
               

                bufReader.close();
                fis.close();

            } catch (FileNotFoundException ex) {
                System.out.println("There was error in opening the file: " + ex.getMessage() );
            } catch (IOException ex) {
                System.out.println("There was error in reading the file: " + ex.getMessage() );
            }

}//GEN-LAST:event_replaceActionPerformed



    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Fileprocessor().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private java.awt.TextArea filename;
    private javax.swing.JFileChooser jFileChooser1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JLabel jLabel6;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private java.awt.TextArea output;
    private javax.swing.JButton replace;
    private javax.swing.JTextArea replaceoutput;
    private java.awt.TextArea replacetext;
    private javax.swing.JButton search;
    private javax.swing.JButton select;
    private java.awt.TextArea text;
    private javax.swing.JTextArea textoutput;
    // End of variables declaration//GEN-END:variables

}