IOUtil

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import org.apache.commons.io.IOUtils;

public class IOUtil {

	public static byte[] file2ByteArray(String fpath){
		InputStream is = null;
		byte[] data = null;
		try {
			is = new FileInputStream(fpath);
			data = IOUtils.toByteArray(is);
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (is != null)is.close();				
			} catch (IOException e) {				
			}	
		}
		return data;
	}
	
	public static String byteArray2File(byte[] byteArray, String fpath){
		File file = new File(fpath);
		OutputStream os = null;
		try {
			os = new FileOutputStream(file);
			os.write(byteArray);
			os.flush();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (os != null)
					os.close();				
			} catch (IOException e) {				
			}	
		}
		return fpath;
	}
}