FileEncode.java

package com.xiongyingqi.util;

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

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

/**
 * Created by 瑛琪<a href="http://xiongyingqi.com">xiongyingqi.com</a> on 2014/9/23 0023.
 */
public class FileEncode {

    /**
     * 使用工具获取文件的编码方式
     *
     * @param file
     * @return
     */
    public static synchronized String getEncodeByUtil(File file) {
        CodepageDetectorProxy detector = CodepageDetectorProxy.getInstance();

        detector.add(new ParsingDetector(false));

        detector.add(JChardetFacade.getInstance());// 用到antlr.jar、chardet.jar
        // ASCIIDetector用于ASCII编码测定
        detector.add(ASCIIDetector.getInstance());
        // UnicodeDetector用于Unicode家族编码的测定
//        detector.add(UnicodeDetector.getInstance());
        Charset charset = null;
        try {
            charset = detector.detectCodepage(file.toURI().toURL());
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        if (charset != null)
            return charset.name();
        else
            return null;
    }
}