遍历文件夹中的文件对话框选择文件案例制作chm文件时用的一个小程序-优快云博客

本文介绍了一个用于批量修改HTML文件的Java程序。该程序能够递归地遍历指定文件夹内的所有HTML文件，并进行预定义的字符串替换操作，如禁用右键菜单、调整边距等。此外，还提供了图形用户界面方便用户选择文件夹并触发替换过程。

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//遍历文件夹进行替换
package com.mengdian.findandreplace.service;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;

import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class FindAndReplaceService {
	/**
	 * 
	 * @param file
	 *  需要进行替换的文件或文件夹递归替换
	 * @return
	 * @throws Exception
	 */
	public static boolean replace(File file) throws Exception {
		if (file.isDirectory()) {// 如果是目录则得到他的子文件进行替换操作
			File[] files = file.listFiles();
			for (int i = 0; i < files.length; i++) {
				replace(files[i]);
			}
			return false;
		} else {
			searchAndReplace(file);
			return true;
		}
	}

	/**
	 * 
	 * @param file要替换的目标文件
	 * @return
	 * @throws Exception
	 */
	public static boolean searchAndReplace(File file) throws Exception{
		String fileName = file.getName();
		//只需要对.html后缀的文件进行操作,不是.html的文件则直接跳出
		if(!fileName.contains(".html")){
			return true;
		}
//		if(fileName.contains(".jpg")||fileName.contains(".png")||fileName.contains(".gif")){
//			return false;
//		}
		
		BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file),"gb2312"));
		StringBuffer sb = new StringBuffer();
		String str = null;
		while(null != (str = br.readLine())){
			sb.append(str);
		}
		
		String des = sb.toString();
		//追加让html不能右键不能复制的功能
		des = des.replace("<body>", "<body oncontextmenu='return false' ondragstart='return false' leftMargin=0 topMargin=0 oncopy='return false' oncut='return false'>");
		des = des.replace("<body >", "<body oncontextmenu='return false' ondragstart='return false' leftMargin=0 topMargin=0 oncopy='return false' oncut='return false'>");
		//给body加上距顶和距左边距
		des = des.replace("leftMargin=0", "leftMargin=10");
		des = des.replace("topMargin=0", "topMargin=10");
		des = des.replace("<img width=124 height=77 src=\"$main.files/image004.png\" alt=DL></span><span lang=EN-US style='font-size:16.0pt;font-family:黑体'>ICS27.100</span></p><p class=MsoNormal style='line-height:26.0pt'><span lang=EN-USstyle='font-size:16.0pt;font-family:黑体'>P61</span></p><p class=MsoNormal style='line-height:26.0pt'><span style='font-size:16.0pt;font-family:黑体'>备案号：<span lang=EN-US>J195</span>—<span lang=EN-US>2002</span></span></p>", "");
//		System.out.println(des);
		String result1 = des.replace("http://www.Word2ChmOnline.com","");
		String result_des = result1.replace("此文档由DeBin软件生成。", "");
		String result_des2 = result_des.replace("<b><span style='font-family:宋体'>详情请参见系统查阅标准模块</span></b>", "<span style='font-family:宋体'>详情请参见系统查阅标准模块</span>");
		result_des2 = result_des2.replace("<b><span style='font-size:13.5pt;font-family:宋体'>请参考系统查阅标准</span></b>", "<span style='font-family:宋体'>详情请参见系统查阅标准模块</span>");
		result_des2 = result_des2.replace("<b><span style='font-size:13.5pt;font-family:宋体'>请参考系统</span></b><b><span style='font-size:13.5pt;font-family:宋体'>查阅</span></b><b><span style='font-size:13.5pt;font-family:宋体'>标准</span></b>", "<span style='font-family:宋体'>详情请参见系统查阅标准模块</span>");
		result_des2 = result_des2.replace("<b><span style='font-size:13.5pt;font-family:宋体'>请参考</span></b><b><span style='font-size:13.5pt;font-family:宋体'>系统</span></b><b><span style='font-size:13.5pt;font-family:宋体'>查阅标准</span></b>", "<span style='font-family:宋体'>详情请参见系统查阅标准模块</span>");
		result_des2 = result_des2.replace("<b>详情请参见系统查阅标准模块</b>", "详情请参见系统查阅标准模块");
		result_des2 = result_des2.replace("<b><span style='font-family:宋体'>详情请参见系统查阅标准模块</span></b>","<span style='font-family:宋体'>详情请参见系统查阅标准模块</span>");
		//替换文件中的@符号为""
		result_des2 = result_des2.replaceAll("[@]", "");
		br.close();
		String filePath = file.getAbsolutePath();
		filePath = filePath.replaceAll("[@]", "");
		File file2 = new File(filePath);
		file.renameTo(file2);
		FileOutputStream fos = new FileOutputStream(file2);
		PrintWriter pw = new PrintWriter(new OutputStreamWriter(fos, "gb2312"));
		pw.write(result_des2);
		pw.close();
		fos.close();
		return true;
	}

	/**
	 * 对视图层关闭按钮的处理
	 * @param frame
	 */
	public void exit(JFrame frame) {
		int val = JOptionPane.showConfirmDialog(frame, "确定离开吗?");
		if (val == JOptionPane.YES_OPTION) {
			System.exit(0);
		}
	}
}
//选择文件对话框
package com.mengdian.findandreplace.ui;

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;

import com.mengdian.findandreplace.service.FindAndReplaceService;

public class FindAndReplaceFrame extends JFrame {
 private String filePath = null;
 
 public String getFilePath() {
  return filePath;
 }

 public void setFilePath(String filePath) {
  this.filePath = filePath;
 }
 /**
  * 
  */
 private static final long serialVersionUID = 1L;
 
 public FindAndReplaceFrame(){
  init();
 }
 
 /**
  * 初始化界面方法
  */
 private void init() {
  //窗口标题
  this.setTitle("批量对文件进行查找替换");
  //设置大小
  this.setSize(800,500);
  //剧中
  this.setLocationRelativeTo(null);
  //加组件
  this.setContentPane(createContentPanel());
  this.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
  //点击关闭按钮退出程序
  this.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
    System.exit(0);
    super.windowClosing(e);
   }
  });
 }
 /**
  * 创建主窗口
  * @return
  */
 private JPanel createContentPanel() {
  JPanel panel = new JPanel(new FlowLayout(100,200,10));
  final JTextField jtf = new JTextField("-------------------------文件绝对路径-------------------------");
  jtf.setEditable(false);
  JButton jbt = new JButton("选择文件/文件夹");
  panel.add(jtf,BorderLayout.CENTER);
  
  panel.add(jbt,BorderLayout.SOUTH);
  jbt.addActionListener(new ActionListener() {
   @Override
   public void actionPerformed(ActionEvent e) {
    JFileChooser jfc = new JFileChooser();
    jfc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
    int returnVal = jfc.showOpenDialog(jfc);
    if(returnVal == JFileChooser.APPROVE_OPTION){
     filePath = jfc.getSelectedFile().getAbsolutePath();
     jtf.setText(filePath);
     File file = new File(filePath);
     try {
      FindAndReplaceService.replace(file);
      //弹出替换成功对话框
      JOptionPane.showConfirmDialog(FindAndReplaceFrame.this, "替换成功","消息",JOptionPane.CLOSED_OPTION);
      //点击确定按钮推出
     } catch (Exception ee) {
      JOptionPane.showConfirmDialog(FindAndReplaceFrame.this, "替换失败");
      ee.printStackTrace();
     }
    }
   }
  });
  return panel;
 }
}

//主程序
package com.mengdian.findandreplace.test;

import com.mengdian.findandreplace.ui.FindAndReplaceFrame;

public class Main {
 public static void main(String[] args) {
  FindAndReplaceFrame frame = new FindAndReplaceFrame();
  frame.setVisible(true);
 }
}