txt批量转为utf8编码
实现将windows系统中创建的txt文件批量转换为utf-8编码。
使用flash air技术实现。没有对编码做深入研究，不敢保证转码一定正确，所以一定不要覆盖掉源文件。
工具界面如下：
主要代码如下。
Ansi2Utf8.as
package
{
import com.adobe.images.PNGEncoder;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Loader;
import flash.display.MovieClip;
import flash.display.SimpleButton;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.filesystem.File;
import flash.geom.Matrix;
import flash.geom.Rectangle;
import flash.net.FileFilter;
import flash.net.URLLoader;
import flash.text.TextField;
import flash.utils.ByteArray;
import flash.utils.setTimeout;
/**
* ...
*/
public class Ansi2Utf8 extends MovieClip
{
public var __browse:SimpleButton;
public var __outPut:SimpleButton;
public var __filesTf:TextField;
public var __outTf:TextField;
private var _files:Array;
private var _customFile:CustomFile ;
public function Ansi2Utf8()
{
stage?initStage():addEventListener(Event.ADDED_TO_STAGE, initStage);
}
public function hide():void {
visible = false;
}
public function show():void {
visible = true;
}
private function initStage(e:Event=null):void
{
removeEventListener(Event.ADDED_TO_STAGE, initStage);
_customFile = new CustomFile();
__browse.addEventListener(MouseEvent.CLICK, onBrowse);
__outPut.addEventListener(MouseEvent.CLICK, onOutPut);
}
/**
* 输出点击
* @param e
*/
private function onOutPut(e:MouseEvent):void
{
if (!_files) {
return;
}
_customFile.browseDirector("保存路径", saveDirectorSelected);
}
/**
* 输出目录选择完毕
* @param file
* @param files
*/
private function saveDirectorSelected(file:File,files:Array):void
{
__outTf.text = "";
outPut("选择输出目录：" + file.nativePath );
var f:File;
var bytes:ByteArray;
var ld:Loader;
var bmd:BitmapData;
var rect:Rectangle;
var bmp:Bitmap;
var imgName:String;
var obj:Array = [];
var curId:int = 0;
loadAndDo();
function loadAndDo():void {
f = _files[curId] as File;
imgName = getFileName(f.nativePath);
outPut("==="+imgName+"===");
outPut("加载文件;");
bytes = _customFile.getBytesFromFile(f);
outPut("处理文件;");
var txt:String = bytes2string(bytes);
var b:ByteArray = new ByteArray();
b.writeMultiByte(txt, "utf-8");
obj.push("======================================");
obj.push(imgName);
obj.push(txt);
outPut("保存文件;" );
_customFile.saveBytes(b, new File(file.nativePath + "\\" + imgName));
outPut("文件保存完成。");
curId++;
if (curId < _files.length) {
//loadAndDo();
setTimeout(loadAndDo, 1);
}
else {
outPut("保存log，可以从里边查看是否有乱码");
_customFile.saveText(obj.join("\r\n"), new File(file.nativePath + "\\log.txt"));
outPut("保存完成");
}
}
}
/**
*
* @param bytes
* @return
*/
private function bytes2string(bytes:ByteArray):String {
bytes.position = 0;
var txt:String;
switch(int(bytes[0]).toString(16) + int(bytes[1]).toString(16)) {
case "fffe"://Unicode
//trace("Unicode");
txt = bytes.readMultiByte(bytes.bytesAvailable, "unicode");
break;
case "feff"://Unicode big endian
//trace("Unicode big endian");
txt = bytes.readMultiByte(bytes.bytesAvailable, "unicodeFFFE");
break;
case "efbb"://UTF-8
//trace("UTF-8");
txt = bytes.readMultiByte(bytes.bytesAvailable, "utf-8");
break;
default://ANSI
//trace("ANSI");
txt = bytes.readMultiByte(bytes.bytesAvailable, "gb2312");
var b:ByteArray = new ByteArray();
b.writeByte(0xef);
b.writeByte(0xbb);
b.writeByte(0xbf);
b.writeMultiByte(txt, "utf-8");
b.position = 0;
txt = b.readMultiByte(b.bytesAvailable, "utf-8");
break;
}
return txt;
}
private function outPut(msg:String):void {
__outTf.appendText(msg + "\n");
__outTf.scrollV = __outTf.maxScrollV;
}
/**
* 浏览文件
* @param e
*/
private function onBrowse(e:MouseEvent):void
{
_customFile.browseMultiple("浏览目录", [new FileFilter("所有文件(*)", "*")
,new FileFilter("txt文件(*.txt)", "*.txt")
,new FileFilter("xml文件(*.xml)", "*.xml")
,new FileFilter("网页文件(*.htm;*.html;*.php;*.asp;*.jsp)", "*.htm;*.html;*.php;*.asp;*.jsp")]
,browseSelected);
}
/**
* 浏览文件选择完成
* @param files
*/
private function browseSelected(files:Array):void
{
var s:String = "";
var fileName:String;
for each(var f:File in files) {
fileName = getFileName(f.nativePath);
s += fileName + "\n";
}
__filesTf.text = s;
_files = files;
}
/**
* 文件路径中提取文件名
* @param path
* @return
*/
private function getFileName(path:String):String {
var fileName:String=path;
if (fileName.indexOf("\\") >= 0) {
fileName = fileName.substring(fileName.lastIndexOf("\\")+1, fileName.length);
}
return fileName;
}
}
}CustomFile.as
package
{
import flash.events.Event;
import flash.events.FileListEvent;
import flash.events.IOErrorEvent;
import flash.filesystem.File;
import flash.filesystem.FileMode;
import flash.filesystem.FileStream;
import flash.utils.ByteArray;
/**
* ...
*/
public class CustomFile extends Object
{
public var file:File = new File();
public var fileStream:FileStream = new FileStream();
private var _callBack:Function;
private var browseTyle:String;
public function CustomFile()
{
file.addEventListener(Event.CANCEL, onCancel);
file.addEventListener(IOErrorEvent.IO_ERROR, onError);
file.addEventListener(Event.SELECT, onSelect);
file.addEventListener(FileListEvent.SELECT_MULTIPLE, onSelectMultiple);
}
/**
* 浏览并选择目录
* @param title
* @param callBack
*/
public function browseDirector(title:String, callBack:Function):void {
file.browseForDirectory(title);
_callBack = callBack;
browseTyle = "director";
}
/**
* 浏览并选择单个文件
* @param title
* @param typeFilter
* @param callBack
*/
public function browseFile(title:String, typeFilter:Array, callBack:Function):void {
file.browseForOpen(title, typeFilter);
_callBack = callBack;
browseTyle = "file";
}
/**
* 浏览并选择多个文件
* @param title
* @param typeFilter
* @param callBack
*/
public function browseMultiple(title:String, typeFilter:Array, callBack:Function):void {
file.browseForOpenMultiple(title, typeFilter);
_callBack = callBack;
browseTyle = "multiple";
}
/**
* 浏览保存位置
* @param title
* @param callBack
*/
public function browseSave(title:String, callBack:Function):void {
file.browseForSave(title);
_callBack = callBack;
browseTyle = "save";
}
/**
* 保存字符串
* @param s
* @param file
*/
public function saveText(s:String, file:File):void {
fileStream.open(file, FileMode.WRITE);
fileStream.writeUTFBytes(s);
fileStream.close();
}
/**
* 保存二进制
* @param b
* @param file
*/
public function saveBytes(b:ByteArray, file:File):void {
fileStream.open(file, FileMode.WRITE);
fileStream.writeBytes(b);
fileStream.close();
}
/**
* 以二进制形式读取文件
* @param file
* @return
*/
public function getBytesFromFile(file:File):ByteArray {
var bytes:ByteArray = new ByteArray();
fileStream.open(file, FileMode.READ);
fileStream.readBytes(bytes, 0, fileStream.bytesAvailable);
fileStream.close();
return bytes;
}
/**
* 选择了单个文件或目录
* @param e
*/
private function onSelect(e:Event):void {
switch(browseTyle) {
case "file":
_callBack(file);
break;
case "director":
_callBack(file,file.getDirectoryListing());
break;
case "save":
_callBack(file);
break;
default:
trace("select error");
break;
}
}
/**
* 选择了多个文件
* @param e
*/
private function onSelectMultiple(e:FileListEvent):void
{
_callBack(e.files);
}
/**
* 取消
* @param e
*/
private function onCancel(e:Event):void
{
}
/**
* 错误
* @param e
*/
private function onError(e:IOErrorEvent):void
{
trace("在此平台上不支持浏览操作");
}
}
}