将整个工程的GBK转为utf-8格式

男娘i 2021-11-11 16:28 285阅读 0赞

eclipse将整个工程转为utf-8时原先中文注释会变为乱码，13年时写了个脚本将整个文件的java以及配置文件转为utf-8格式，下面是代码

package com.code.pd;
    import java.io.BufferedInputStream;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileOutputStream;
    import java.io.InputStreamReader;
    import java.io.OutputStreamWriter;
    import java.nio.charset.Charset;
    
    import org.apache.commons.io.IOUtils;
    
    /**
     * 
     * 
     *
     * @author  lipeng
     * @since   1.0
     * @version 2013-10-24 lipeng
     */
    public class GbkToUtf {
    
    	/**
    	 * @param args
    	 */
    	public static void main(String[] args) {
    		GbkToUtf.readfile("D:\\workspace\\JavaUtils\\src\\com\\code\\common");
    	}
    
    	public static void readfile(String filePath) {
    		try {
    			File file = new File(filePath);
    			if (!file.isDirectory()) {
    				transferCharset(file);
    			} else if (file.isDirectory()) {
    				System.out.println("文件夹");
    				String[] filelist = file.list();
    				for (int i = 0; i < filelist.length; i++) {
    					File readfile = new File(filePath + "\\" + filelist[i]);
    					if (!readfile.isDirectory()) {
    							transferCharset(readfile);
    					} else if (readfile.isDirectory()) {
    						if(!"excel,jdbc,nosql,spring".contains( filelist[i])){
    							readfile(filePath + "\\" + filelist[i]);
    						}
    					}
    				}
    
    			}
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    
    	}
    	
    	public static void transferCharset(File file){
    		try {
    			String charset=codeString(file);
    			if("GBK".equals(codeString(file))){
    				System.out.println(file.getAbsolutePath()+"------------"+charset);
    				String content = getFileContentWithCharsetName(file, "GBK");
    				saveFileWithCharsetName(file, "UTF-8", content);
    			}
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    		
    	}
    
    	public static void saveFileWithCharsetName(File file, String charsetName, String content)
    			throws Exception {
    		FileOutputStream fileOut = new FileOutputStream(file);
    		// CharsetDecoder
    		OutputStreamWriter outWrite = new OutputStreamWriter(fileOut, Charset.forName(charsetName));
    		outWrite.write(content);
    		outWrite.close();
    	}
    	
    	/**
    	 * 判断文件的编码格式
    	 * @param fileName :file
    	 * @return 文件编码格式
    	 * @throws Exception
    	 */
    	public static String codeString(File fileName) throws Exception{
    		BufferedInputStream bin = new BufferedInputStream(
    		new FileInputStream(fileName));
    		int p = (bin.read() << 8) + bin.read();
    		String code = null;
    		
    		switch (p) {
    			case 0xefbb:
    				code = "UTF-8";
    				break;
    			case 0xfffe:
    				code = "Unicode";
    				break;
    			case 0xfeff:
    				code = "UTF-16BE";
    				break;
    			default:
    				code = "GBK";
    		}
    		IOUtils.closeQuietly(bin);
    		return code;
    	}
    
    	public static String getFileContentWithCharsetName(File file, String charsetName)
    			throws Exception {
    		FileInputStream fileIn = new FileInputStream(file);
    		// CharsetDecoder
    		InputStreamReader inRead = new InputStreamReader(fileIn, Charset.forName(charsetName));
    		int size = (int) (file.length());
    		char[] chs = new char[size];
    		inRead.read(chs);
    		String str = new String(chs).trim();
    		inRead.close();
    		return str;
    	}
    }