wp/nwyj/.svn/pristine/f4/f46ee27a4ed7ed7e6f1846e902eedd3986f8cd62.svn-base

package com.toolkit.file.encode.frame.tools;

import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;

public class ConverEncoding{

	/**
	 * 1、修改文件的编码方式，比如原先的编码是big5，我把它转换成UTF-8。
	 * 2、拷贝图片，读取图片然后把文件放到指定的目录。（这个地方可以扩展，我是用一个图片缩放类
	 * ，修改过来的，因此这个部分可以修改为具有图片缩放功能的模块）。 3、网页编码方式替换，我读取文件的时候直接把网页指定的编码也给替换成UTF-8了
	 */

	static String	strDealObj		= "C:\\temp\\javascript";
	static String	strNewPath		= "C:\\temp\\javascriptNew";
	static String[]	strCanDoExtName	= { "jpg", "jpeg", "gif", "png" };

	/**
	 * @param args
	 * @throws Exception
	 */
	public static void main(String[] args) throws Exception {
		File objFile = new File(strDealObj);
		doDealWithObj(objFile, strNewPath);
	}

	private static void doDealWithObj(File objFile, String strNewPath) throws Exception {

		if (objFile.isDirectory()) {

			File[] objFiles = objFile.listFiles();
			for (int i = 0; i < objFiles.length; i++) {
				if (objFiles[i].isDirectory()) {
					doDealWithObj(objFiles[i], createPathName(strNewPath, objFiles[i].getName()));
				} else {
					// System.out.println(objFiles[i].getPath());
					// System.out.println(strNewPath);
					// System.out.println("-------------------");
					judgeFile(objFiles[i], strNewPath, "big5", "UTF-8");
				}
			}

		} else {
			// System.out.println(objFile.getPath());
			// System.out.println(strNewPath);
			// System.out.println("================");
			judgeFile(objFile, strNewPath, "big5", "UTF-8");
		}

	}

	private static String createPathName(String strPathName, String strFolderName) {
		if (strPathName.lastIndexOf("\\") == strPathName.length()) {
			return strPathName + strFolderName;
		} else {
			return strPathName + "\\" + strFolderName;
		}
	}

	private static void judgeFile(File oldFile, String newFilePath, String strOldEncoding,
			String strNewEncoding) throws Exception {
		File fileNewPath = new File(newFilePath);
		if (!fileNewPath.exists()) {
			fileNewPath.mkdirs();
		}
		String strFileName = oldFile.getName();
		String strExt = getFileExtension(strFileName);
		int intExt = isBelongPic(strExt, strCanDoExtName);
		if (intExt != -1) {
			copyPic(oldFile, newFilePath, intExt);
		} else {
			copyFile(oldFile, newFilePath, "big5", "UTF-8");
		}
	}

	private static void copyFile(File oldFile, String newFilePath, String strOldEncoding,
			String strNewEncoding) throws Exception {

		FileInputStream fileInputStream = null;
		InputStreamReader inputStreamRead = null;
		BufferedReader bufferRead = null;

		BufferedWriter newFileBW = null;
		OutputStreamWriter outputStreamWriter = null;
		FileOutputStream fileOutputStream = null;
		// boolean blnCopyOK = false;
		try {

			fileInputStream = new FileInputStream(oldFile);
			inputStreamRead = new InputStreamReader(fileInputStream, strOldEncoding);
			bufferRead = new BufferedReader(inputStreamRead);

			File copyFile = new File(createPathName(newFilePath, oldFile.getName()));
			fileOutputStream = new FileOutputStream(copyFile, false);
			outputStreamWriter = new OutputStreamWriter(fileOutputStream, strNewEncoding);
			newFileBW = new BufferedWriter(outputStreamWriter);

			String strTSVLine = "";
			while ((strTSVLine = bufferRead.readLine()) != null) {
				if (strTSVLine.equals("")) {
					continue;
				}
				newFileBW.write(strTSVLine.replaceAll(" charset=big5", " charset=UTF-8") + "\r\n");
			}
			// blnCopyOK = true;
		} finally {
			if (bufferRead != null)
				bufferRead.close();

			// if (blnCopyOK) {
			// oldFile.delete();
			// }
			if (newFileBW != null) {
				newFileBW.flush();
				newFileBW.close();
			}
		}
	}

	private static void copyPic(File oldFile, String newFilePath, int intPicType) throws Exception {
		String strFileName;

		strFileName = oldFile.getName(); // 獲得文件名

		// 獲得文件擴展名
		// String strExtType = getFileExtension(strFileName);

		// *圖片文件處理
		// File imagefile = new File(strFileName); // 讀入文件

		Image src_image = javax.imageio.ImageIO.read(oldFile);

		// 獲得圖片文件的高度和寬度
		int width = src_image.getWidth(null); // 得到源圖寬

		int height = src_image.getHeight(null);

		// 在申請的圖片緩存區中重繪圖片
		BufferedImage buf_image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

		// 繪制縮小后的圖
		buf_image.getGraphics().drawImage(src_image, 0, 0, width, height, null);

		// 重新建立文件輸出流,并編碼
		FileOutputStream out = new FileOutputStream(createPathName(newFilePath, strFileName));

		// 輸出到文件流

		JPEGImageEncoder jpg_encoder = JPEGCodec.createJPEGEncoder(out);

		jpg_encoder.encode(buf_image);

		// 使用JPEG編碼文件

		// 關閉文件流
		out.close();
	}

	public static String getFileExtension(String fileName) {
		return fileName.substring(fileName.lastIndexOf(".") + 1, fileName.length());
	}

	private static int isBelongPic(String strFileExt, String[] strCanDoPic) {
		for (int i = 0; i < strCanDoPic.length; i++) {
			if (strFileExt.equalsIgnoreCase(strCanDoPic[i])) {
				return i;
			}
		}
		return -1;
	}
}