批量文件字符集编码转换

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import java.io.Writer;

public class Main {
	String filesDir = "";
	String filesNDir = "";

	public static void main(String args[]) throws IOException {
		cp("C:/Documents and Settings/Administrator/workspace/ABC/",
				"C:/Documents and Settings/Administrator/workspace/ABC2",
				"UTF-8", "GBK");
	}

	static void cp(String baseDir, String ndir, String code1, String code2)
			throws IOException {
		File file = new File(baseDir);
		if(file.isDirectory())
		 new File(ndir).mkdirs();
		if (file.isDirectory()) {
			
			String list[] = file.list();
			for (String f : list) {
				cp(baseDir + "/" + f, ndir + "/" + f, code1, code2);
			}
		} else {
			if (baseDir.indexOf(".php") > 0 || baseDir.indexOf(".html") > 0 || baseDir.indexOf(".js") > 0 || baseDir.indexOf(".xml") > 0 || baseDir.indexOf(".css") > 0) {

				convert(baseDir, ndir, code1, code2);
				InputStreamReader read = new InputStreamReader(
						new FileInputStream(baseDir), code1);// 或者UNICODE,UTF-16
				BufferedReader reader = new BufferedReader(read);
				String line;

				while ((line = reader.readLine()) != null) {
					System.out.println(line);
				}
				reader.close();

				read.close();
			}

		}
	}

	public static void convert(String infile, String outfile, String from,
			String to) throws IOException, UnsupportedEncodingException {
		
		// set up byte streams
		InputStream in;
		if (infile != null)
			in = new FileInputStream(infile);
		else
			in = System.in;
		OutputStream out;
		if (outfile != null)
			out = new FileOutputStream(outfile);
		else
			out = System.out;

		// Use default encoding if no encoding is specified.
		if (from == null)
			from = System.getProperty("file.encoding");
		if (to == null)
			to = System.getProperty("file.encoding");

		// Set up character stream
		Reader r = new BufferedReader(new InputStreamReader(in, from));
		Writer w = new BufferedWriter(new OutputStreamWriter(out, to));

		// Copy characters from input to output. The InputStreamReader
		// converts from the input encoding to Unicode,, and the
		// OutputStreamWriter
		// converts from Unicode to the output encoding. Characters that cannot
		// be
		// represented in the output encoding are output as '?'
		char[] buffer = new char[4096];
		int len;
		while ((len = r.read(buffer)) != -1)
			w.write(buffer, 0, len);
		r.close();
		w.flush();
		w.close();
	}

}

 

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