파일 과 base 64 인 코딩 이 서로 바 뀌 었 습 니 다.

import java.io.BufferedOutputStream; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.nio.file.Files; import java.nio.file.Paths; import java.util.Base64;
public class Base64Util {

/**
 *    base64
 * @param path        
 * @return
 */
public static String fileToBase64(String path) {
	String base64 = null;
	InputStream in = null;
	
	try {
		byte[] b = Files.readAllBytes(Paths.get(path));
		base64 = Base64.getEncoder().encodeToString(b);
	} catch (Exception e) {
		e.printStackTrace();
	} finally {
		if(in!=null) {
			try {
				in.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	return base64;
}

/**
 * base64   
 * @param base64    base64  
 * @param filePath     
 * @param fileName    
 */
public static void base64ToFile(String base64, String filePath, String fileName) {
	File file = null;
	//      
	File dir = new File(filePath);
	if(!dir.exists()&&!dir.isDirectory()) {
		dir.mkdirs();
	}
	BufferedOutputStream bos = null;
	FileOutputStream fos = null;
	byte[] bytes = Base64.getDecoder().decode(base64);
	file = new File(filePath+"\\"+fileName);
	try {
		fos = new FileOutputStream(file);
		bos = new BufferedOutputStream(fos);
		bos.write(bytes);
	} catch (FileNotFoundException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} finally {
		if(bos!=null) {
			try {
				bos.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		if(fos!=null) {
			try {
				fos.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	
}

}