java使用NIO读取中文乱码的解决办法

TestFileChannel.java

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.FileChannel;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;

/**
 * java使用NIO读取中文乱码的解决办法
 */
public class TestFileChannel {

    public static void main(String[] args) {

        try {

//            通过设置字符集的编码，并将ByteBuffer转换为CharBuffer来避免中文乱码
            Charset charset = Charset.forName("UTF-8");
            CharsetDecoder decoder  = charset.newDecoder();


            RandomAccessFile file = new RandomAccessFile("F:\\testB.txt","rw");

            FileChannel fileChannel = file.getChannel();


            ByteBuffer byteBuffer = ByteBuffer.allocate(1024);
            CharBuffer charBuffer  = CharBuffer.allocate(1024);

            int byteread = fileChannel.read(byteBuffer);

            while (  -1 != byteread){

                System.out.println("read"+ byteread );

                byteBuffer.flip();


                while ( byteBuffer.hasRemaining() ){

                    decoder.decode(byteBuffer,charBuffer,false);
                    charBuffer.flip();

                    System.out.print(  charBuffer);
                }


                byteBuffer.clear();
                charBuffer.clear();


                byteread = fileChannel.read(byteBuffer);




            }


            fileChannel.close();




        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}