package cn.xuanyuan.util;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import sun.misc.BASE64Decoder;

import sun.misc.BASE64Encoder;

public class FileUitl {

/**

* 将文件转成base64 字符串

* @param path文件路径

* @return  *

* @throws Exception

*/

public static String encodeBase64File(String path) throws Exception {

File file = new File(path);;

FileInputStream inputFile = new FileInputStream(file);

byte[] buffer = new byte[(int) file.length()];

inputFile.read(buffer);

inputFile.close();

return new BASE64Encoder().encode(buffer);

}

/**

* 将base64字符解码保存文件

* @param base64Code

* @param targetPath

* @throws Exception

*/

public static void decoderBase64File(String base64Code, String targetPath)

throws Exception {

byte[] buffer = new BASE64Decoder().decodeBuffer(base64Code);

FileOutputStream out = new FileOutputStream(targetPath);

out.write(buffer);

out.close();

}

/**

* 将base64字符保存文本文件

* @param base64Code

* @param targetPath

* @throws Exception

*/

public static void toFile(String base64Code, String targetPath)

throws Exception {

byte[] buffer = base64Code.getBytes();

FileOutputStream out = new FileOutputStream(targetPath);

out.write(buffer);

out.close();

}

public static void main(String[] args) {

try {

String base64Code = encodeBase64File("D:/0101-2011-qqqq.tif");

System.out.println(base64Code);

decoderBase64File(base64Code, "D:/2.tif");

toFile(base64Code, "D:\\three.txt");

} catch (Exception e) {

e.printStackTrace();

}

}

}