[网络协议]java 使用字节流拷贝文件

java 使用字节流拷贝文件

import java.io.*;

/**
 * @author ssy
 * @date 2021/12/6 13:54
 */
public class BufferCopyTest2 {

    /**
     * 按照字节流读取，二进制文件（声音、视频、doc等）不会丢失
     * @param filePath
     * @param copyFilePath
     * @throws IOException
     */
    public static void copyFile(String filePath, String copyFilePath) throws IOException {

        BufferedInputStream inputStream = null;
        BufferedOutputStream outputStream = null;

        inputStream = new BufferedInputStream(new FileInputStream(filePath));
        outputStream = new BufferedOutputStream(new FileOutputStream(copyFilePath));

        byte[] bytes = new byte[1024];
        int line = 0;
        while ((line = inputStream.read(bytes)) != -1){
            outputStream.write(bytes,0,line);
        }

        inputStream.close();
        outputStream.close();

        System.out.println("拷贝完成");
    }

    public static void main(String[] args) throws IOException {
        String filePath = "D:/upload1457887643252563969.wav";
        String copyFilePath = "D:/result1.wav";
        copyFile(filePath,copyFilePath);
    }

}