java 文件编码转换.doc

java 文件编码转换 package com.folkSeal.util;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.nio.ByteBuffer;import java.nio.channels.FileChannel;import java.nio.charset.Charset;/* IO 工具类 */public class IOCVUtils /* 源文件编码 */public static String sourceEncoding = GBK;/* 目标编码 */public static String targetEncoding = UTF-8;/* * 文件内容转编码 * param sourceFile * param targetFile * throws UnsupportedEncodingException * throws FileNotFoundException * throws IOException */public static void changeEncoding(File sourceFile, File targetFile)throws UnsupportedEncodingException, FileNotFoundException,IOException FileInputStream fin = null;FileOutputStream fout = null;FileChannel fcin = null;FileChannel fcout = null;if (sourceEncoding = null) IOCVUtils.sourceEncoding = System.getProperty(file.encoding);try fin = new FileInputStream(sourceFile);fout = new FileOutputStream(targetFile);fcin = fin.getChannel();fcout = fout.getChannel();ByteBuffer buffer = ByteBuffer.allocateDirect(1024);while (true) buffer.clear();int r = fcin.read(buffer);if (r = -1) break;buffer.flip();fcout.write(ByteBuffer.wrap(Charset.forName(sourceEncoding).decode(buffer).toString().getBytes(targetEncoding); finally if (fin != null) fin.close();fin = null;if (fcin != null) fcin.close();fcin = null;if (fout != null) fout.close();fout = null;if (fcout != null) fcout.close();fcout = null;/* * 文件内容转编码 * param sourceFile * param targetFile * throws UnsupportedEncodingException * throws FileNotFoundException * throws IOException */public static void changeEncoding(String sourceFile, String targetFile) throws UnsupportedEncodingException, FileNotFoundException, IOExceptionFile fl1 = new File(sourceFile);File fo1 = new File(targetFile);changeEncoding(fl1, fo1);/* * 文件内容转编码 * param sourceFile * param targetFile * param sourceEncoding 源文件编码 默认源文件的系统存储编码 System.getProperty(file.encoding); * param targetEncoding 目标编码 默认utf-8 * throws UnsupportedEncodingException * throws FileNotFoundException * throws IOException */public static void changeEncoding(String sourceFile, String targetFile,String sourceEncoding, String targetEncoding) throws UnsupportedEncodingException, FileNotFoundException, IOException IOCVUtils.sourceEncoding = sourceEncoding;IOCVUtils.targetEncoding = targetEncoding;changeEncoding(sourceFile, targetFile);或者package com.folkSeal.test;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;public class StreamGobbler extends Thread InputStream is; String type; StreamGobbler(InputStream is, String type) this.is = is; this.type = type; public void run() try InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); String line = null; while (line = br.readLine() != null) System.out.println(type + + line); catch (IOException ioe) ioe.printStackTrace(); package com.folkSeal.test;import java.io.File;/* * 用于文件夹下的java文件的编码自动转换，如gbk转utf-8 * * author Wen Fuqiang * company Fayhong Technology Co., Ltd. * date 2010-1-26 */public class EncodingConverter /* * main方法入口 * * param args * args0 给定需要转换的文件夹 args1 指定需要转换的编码，如utf-8等 */public static void main(String args) / if (args.length2)/ System.out.println(please input path of folder and encoding name);/ System.exit(1);/ / else/ ec.convertEncode(args0, args1);/ EncodingConverter ec = new EncodingConverter();/ 暂时用src_path替换args0，encoding_name替换arg1String src_path = E:WorkspacesfolkSealWebRootfileseal_templet_filexml22;String encoding_name = utf-8;ec.convertEncode(src_path, encoding_name);public void convertEncode(String sourceFloder, String encoding_name) File file = new File(sourceFloder);String files = file.list();for (String s : files) if (s.indexOf(.) = -1) / 表明这是个子目录，回归调用此函数convertEncode(file.getAbsolutePath() + + s, encoding_name); else if (s.endsWith(xml) / 只处理以Java结尾的文件doConvertEncode(file.getAbsolutePath() + + s, file.getAbsolutePath()+ + s, encoding_name);/* * 完成具体的编码转换工作 * * param inputFile * 输入文件 * param outputFile * 输出文件 * param encoding_name * 需要转成的编码格式 */public void doConvertEncode(String inputFile, String outputFile,String encoding_name) Runtime rt = Runtime.getRuntime();String cmd = native2ascii.exe, -reverse, -encoding,encoding_name, inputFile, outputFile ;System.out.println(Execing convert command for + inputFile + .);try Process proc = rt.exec(cmd);/ any error message?StreamGobbler errorGobbler = new StreamGobbler(proc.getErrorStream(), ERROR);/ any output?StreamGobbler outp