Netty: ByteBuf转String

package tju.SpringBootPostServer.controller;

import java.io.UnsupportedEncodingException;
import java.util.Date;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.util.CharsetUtil;

public class TestMe {

  public static void main(String[] args) throws UnsupportedEncodingException {
    ByteBuf byteBuf = Unpooled.copiedBuffer("current time is: "+new Date(),CharsetUtil.UTF_8);
    byte[] bytes = new byte[byteBuf.readableBytes()];
    byteBuf.readBytes(bytes);
    String body = new String(bytes,"UTF-8");
    System.out.println(body);

  }

}