GBK 和 UTF8 转码

GBK 转 UTF8
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
* @author Administrator
*
*/
public class GBKtoUTF8ConvertEncoding {
public static void main(String[] args) throws Exception {

String srcDir = "C:\\WorkPlace\\Ebuy_20141217\\src";//
List<String> files = new ArrayList<String>();
fetchFileList(srcDir, files, ".java");
for(String fileName : files){
convert(fileName,"GBK", fileName, "UTF-8");//

}
}
public static void convert(String oldFile, String oldCharset, String newFlie, String newCharset){
BufferedReader bin;
FileOutputStream fos;
StringBuffer content = new StringBuffer();
try {
System.out.println(oldFile);
bin = new BufferedReader(new InputStreamReader(new FileInputStream(oldFile), "gbk"));
String line = null;
while((line=bin.readLine())!=null){
//          System.out.println("content:" + content);
content.append(line);
content.append(System.getProperty("line.separator"));
}
bin.close();
File dir = new File(newFlie.substring(0, newFlie.lastIndexOf("\\")));
if(!dir.exists()){
dir.mkdirs();
}
fos = new FileOutputStream(newFlie);
Writer out = new OutputStreamWriter(fos, newCharset);
out.write(content.toString());
out.close();
fos.close();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void fetchFileList(String strPath, List<String> filelist, final String regex) {
File dir = new File(strPath);
File[] files = dir.listFiles();
Pattern p = Pattern.compile(regex);
if (files == null)
return;
for (int i = 0; i < files.length; i++) {
if (files[i].isDirectory()) {
fetchFileList(files[i].getAbsolutePath(), filelist, regex);
} else {
String strFileName = files[i].getAbsolutePath().toLowerCase();
Matcher m = p.matcher(strFileName);
if(m.find()){
filelist.add(strFileName);
}
}
}
}
}

UTF8 转 GBK

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @author Administrator
 *
 */
public class UTF8toGBKConvertEncoding {
   public static void main(String[] args) throws Exception {
<span style="white-space:pre">	</span> 
      String srcDir = "C:\\WorkPlace\\MYS2SH\\src\\com\\test\\cccccc";// 
      List<String> files = new ArrayList<String>();
      fetchFileList(srcDir, files, ".java");
      for(String fileName : files){
         convert(fileName,"UTF-8", fileName, "GBK");// 
        
      } 
   }
   public static void convert(String oldFile, String oldCharset, String newFlie, String newCharset){
      BufferedReader bin;
      FileOutputStream fos;
      StringBuffer content = new StringBuffer();
      try {
         System.out.println(oldFile);
         bin = new BufferedReader(new InputStreamReader(new FileInputStream(oldFile), "utf8"));
         String line = null;
         while((line=bin.readLine())!=null){
//          System.out.println("content:" + content);
            content.append(line);
            content.append(System.getProperty("line.separator"));
         }
         bin.close();
         File dir = new File(newFlie.substring(0, newFlie.lastIndexOf("\\")));
         if(!dir.exists()){
            dir.mkdirs();
         }
         fos = new FileOutputStream(newFlie);
         Writer out = new OutputStreamWriter(fos, newCharset);
         out.write(content.toString());
         out.close();
         fos.close();
      } catch (UnsupportedEncodingException e) {
         e.printStackTrace();
      } catch (FileNotFoundException e) {
         e.printStackTrace();
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
   public static void fetchFileList(String strPath, List<String> filelist, final String regex) {
      File dir = new File(strPath);
        File[] files = dir.listFiles();
        Pattern p = Pattern.compile(regex);
        if (files == null)
            return;
        for (int i = 0; i < files.length; i++) {
            if (files[i].isDirectory()) {
               fetchFileList(files[i].getAbsolutePath(), filelist, regex);
            } else {
                String strFileName = files[i].getAbsolutePath().toLowerCase();
                Matcher m = p.matcher(strFileName);
                if(m.find()){
                  filelist.add(strFileName);
                }
            }
        }
    }
}