Java中byte数组与InputStream之间的转换
2020-08-23 06:41:33
1、将File、FileInputStream 转换为byte[]数组：
File file = new File("");
InputStream input = new FileInputStream(file);
byte[] byt = new byte[()];
(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);
(byt);
4.字符串(String) 与 byte[] 数组
String str = "字符串与byte[]数组";
byte[] bytes = ();
InputStream inputStream = new ByteArrayInputStream(bytes);
try {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
byte[] buff = new byte[100];
int rc = 0;
while ((rc = (buff, 0, 100)) > 0) {
(buff, 0, rc);
}
byte[] bytes1 = ();
String string = new String(bytes1, StandardCharsets.UTF_8);
("string = " + string);
} catch (IOException e) {
(());
}