java代码如何将一个字节数组写入到文件中呢?

字节数组写入到文件的实现思路

1.定义一个文件输出流
2.将字节数组写入到流中
   即可实现字节数组写入到文件的效果

/**
 * 将字节数组写入文件
 * @param 字节狐族
 * @throws Exception
 */
private static void byte2File(byte[] byt) throws Exception {
	if (null == byt) {
		return;
	}
	String targetFile = "D:\\test.txt";
	File file = new File(targetFile);
	OutputStream output = new FileOutputStream(file);
	BufferedOutputStream out = new BufferedOutputStream(output);
	InputStream in = new ByteArrayInputStream(byt);
	byte[] buff = new byte[1024];
	int len = 0;
	while ((len = in.read(buff)) != -1) {
		out.write(buff, 0, len);
	}
	in.close();
	out.close();
	System.out.println("---- 写入完毕！----");
}