将ByteBuffer保存成文件

Posted 2022-10-02 passedbylove

 String dest = "d:/download/" + name;

            Path path = Paths.get(dest).getParent().toAbsolutePath().normalize();

            if(!Files.exists(path))
            
                try 
                    Files.createDirectories(path);
                 catch (IOException e) 
                    e.printStackTrace();
                
            

            try (FileChannel fc = new FileOutputStream(dest).getChannel())

                ByteBuffer buffer = getResponseAttachment(url);
                fc.write(buffer);
             catch (IOException e) 
                e.printStackTrace();
            

 

import java.io.File;
import java.io.FileOutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

public class Main 
  public static void main(String[] argv) throws Exception 
    ByteBuffer bbuf = ByteBuffer.allocate(100);
    File file = new File("filename");

    boolean append = false;

    FileChannel wChannel = new FileOutputStream(file, append).getChannel();

    wChannel.write(bbuf);

    wChannel.close();
  

String dest = "d:/download/" + name;
            try (FileChannel fc = FileChannel.open(Paths.get(dest), StandardOpenOption.WRITE))
                ByteBuffer buffer = getResponseAttachment(url);
                fc.write(buffer);
             catch (IOException e) 
                e.printStackTrace();