Java如何将文件读入字节数组？
package org.nhooo.example.io;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
public class ReadFileIntoByteArray {
public static void main(String[] args) throws IOException {
File file = new File("Hello.txt");
try (InputStream is = new FileInputStream(file)) {
if (file.length() > Integer.MAX_VALUE) {
throw new IOException("File is too large.");
}
int offset = 0;
int bytesRead;
byte[] bytes = new byte[(int) file.length()];
while (offset < bytes.length
&& (bytesRead = is.read(bytes, offset, bytes.length - offset)) >= 0) {
offset += bytesRead;
}
}
}
}
热门推荐
7 简短的二胎祝福语
10 简短霸气女儿生日 祝福语
11 祝福语高考小众诗句简短
12 元旦祝福语20秒简短
13 老师过年祝福语大全 简短
14 一生祝福语简短
15 产检祝福语简短霸气
16 朋友店开张祝福语简短
17 生日爱情祝福语大全简短
18 朋友女儿生日祝福语 简短