java文件轉碼

完整項目帶lib

參考

http://toyota2006.iteye.com/blog/540316

判斷編碼

   
   
   
           

    
    
    
            
package change;
    
    
    
            

    
    
    
            
import info.monitorenter.cpdetector.io.CodepageDetectorProxy;
    
    
    
            
import info.monitorenter.cpdetector.io.JChardetFacade;
    
    
    
            

    
    
    
            
import java.io.File;
    
    
    
            
import java.nio.charset.Charset;
    
    
    
            

    
    
    
            
public class EncodingUtil {
    
    
    
            

    
    
    
            
 public static String getFileEncoding(String filePath) {
    
    
    
            

    
    
    
            
 File file = new File(filePath);
    
    
    
            

    
    
    
            
 return getFileCharacterEnding(file);
    
    
    
            
 }
    
    
    
            

    
    
    
            
 /**
    
    
    
            
 * Try to get file character ending.
    
    
    
            
 * </p>
    
    
    
            
 * <strong>Warning: </strong>use cpDetector to detect file's encoding.
    
    
    
            
 * 
    
    
    
            
 * @param file
    
    
    
            
 * @return
    
    
    
            
 */
    
    
    
            
 public static String getFileCharacterEnding(File file) {
    
    
    
            

    
    
    
            
 String fileCharacterEnding = "UTF-8";
    
    
    
            

    
    
    
            
 CodepageDetectorProxy detector = CodepageDetectorProxy.getInstance();
    
    
    
            
 detector.add(JChardetFacade.getInstance());
    
    
    
            

    
    
    
            
 Charset charset = null;
    
    
    
            

    
    
    
            
 // File f = new File(filePath);
    
    
    
            

    
    
    
            
 try {
    
    
    
            
 charset = detector.detectCodepage(file.toURL());
    
    
    
            
 } catch (Exception e) {
    
    
    
            
 e.printStackTrace();
    
    
    
            
 }
    
    
    
            
 if (charset != null) {
    
    
    
            
 fileCharacterEnding = charset.name();
    
    
    
            
 }
    
    
    
            

    
    
    
            
 return fileCharacterEnding;
    
    
    
            
 }
    
    
    
            
 
    
    
    
            
 public static void main(String[] args) {
    
    
    
            
 System.out.println(getFileEncoding("E:/code/myec_cyh/pingan_dmz/test.java"));
    
    
    
            
 System.out.println(getFileEncoding("E:/code/myec_cyh/pingan_dmz/src/cn/com/benyoyo/manage/core/DBUtil/PublicDao.java"));
    
    
    
            
 
    
    
    
            
 }
    
    
    
            
}
   
   
   
           

轉碼

   
   
   
           

    
    
    
            
package change;
    
    
    
            

    
    
    
            
import java.io.File;
    
    
    
            
import java.util.Collection;
    
    
    
            

    
    
    
            
import org.apache.commons.io.FileUtils;
    
    
    
            
/**
    
    
    
            
 * 
    
    
    
            
 * @author sgy
    
    
    
            
 *
    
    
    
            
 *如果項目中同時存在有gb2312/gbk和utf8的文件，則將gb2312/gbk的轉為utf8
    
    
    
            
 */
    
    
    
            
public class ChangeEncoding {
    
    
    
            

    
    
    
            
 public static void main(String[] args) throws Exception {
    
    
    
            
 //GBK編碼格式源碼路徑
    
    
    
            
 String srcDir = "E:\\pingan_dmz";
    
    
    
            
 //轉為UTF-8編碼格式源碼路徑
    
    
    
            
 String targetDirectory = "E:\\code\\myec_cyh\\pingan_dmz";
    
    
    
            
 
    
    
    
            
 //獲取所有java文件
    
    
    
            
 Collection<File> srcDirFileCol = FileUtils.listFiles(new File(srcDir), new String[]{"java"}, true);
    
    
    
            
 
    
    
    
            
 for (File srcFile : srcDirFileCol) {
    
    
    
            
 String srcFilePath = srcFile.getAbsolutePath();
    
    
    
            
 //當為GB2312時才會轉換為urf8
    
    
    
            
 String srcEncoding = EncodingUtil.getFileEncoding(srcFilePath);
    
    
    
            
 System.out.print(srcFile.getName()+":"+srcEncoding+" ");
    
    
    
            
 if ("GB2312" == srcEncoding || "GBK" == srcEncoding) {
    
    
    
            
 System.out.println();
    
    
    
            
 System.out.print(srcFile.getAbsolutePath());
    
    
    
            
 //UTF8格式文件路徑
    
    
    
            
 String targetFilePath = targetDirectory+srcFilePath.substring(srcDir.length());
    
    
    
            
 //使用GBK讀取數據，然后用UTF-8寫入數據
    
    
    
            
 FileUtils.writeLines(new File(targetFilePath), "UTF-8", FileUtils.readLines( srcFile, srcEncoding)); 
    
    
    
            
 }
    
    
    
            
 }
    
    
    
            
 
    
    
    
            
 
    
    
    
            
 }
    
    
    
            
}
   
   
   
           

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