java byte数组转化为流_java 输入流转字节数组
1、将File、FileInputStream 转换为byte数组：
File file = new File("test.txt");
InputStream input = new FileInputStream(file);
byte[] byt = new byte[input.available()];
input.read(byt);
2、将byte数组转换为InputStream：
byte[] byt = new byte[1024];
InputStream input = new ByteArrayInputStream(byt);
3、将byte数组转换为File：
File file = new File();
OutputStream output = new FileOutputStream(file);
BufferedOutputStream bufferedOutput = new BufferedOutputStream(output);
bufferedOutput.write(byt);
1、将File、FileInputStream 转换为byte数组： File file = new File("test.txt"); InputStream input = new FileInputStream(file); byte[] byt = new byte[input.available()]; input.read(byt); 2、将byte数组转换为InputStream： byte[] byt = new byte[1024]; InputStream input = new ByteArrayInputStream(byt); 3、将byte数组转换为File： File file = new File(); OutputStream output = new FileOutputStream(file); BufferedOutputStream bufferedOutput = new BufferedOutputStream(output); bufferedOutput.write(byt);