Java获得指定文件的编码类型

import info.monitorenter.cpdetector.io.CodepageDetectorProxy;
import info.monitorenter.cpdetector.io.JChardetFacade;
import java.io.File;  
import java.nio.charset.Charset;  

/**
 * 获得文件的编码类型
 * 需要三个jar包：antlr.jar,chardet.jar,cpdetector_1.0.7.jar
 *
 */
public class CharacterEnding {  
	public static void main(String[] args) {
		new CharacterEnding().getFileCharacterEnding("C://temps//zip压缩");  
	}

	/**
	 * 获得文件的编码类型
	 * @param filePath
	 * @return
	 */
	public String getFileCharacterEnding(String filePath ) {  
		String fileCharacterEnding = "UTF-8";  
		CodepageDetectorProxy detector = CodepageDetectorProxy.getInstance();  
		detector.add(JChardetFacade.getInstance());  
		Charset charset = null;  
		File file = new File(filePath);  
		try {  
			charset = detector.detectCodepage(file.toURL());  
		} catch (Exception e) {  
			e.printStackTrace();  
		}  
		if (charset != null) {  
			fileCharacterEnding = charset.name();
			System.out.println(filePath+"的编码类型为："+fileCharacterEnding);
		}  
		return fileCharacterEnding;  
	}  
}