package com.anyun.im_lib.util;

import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;

/**
 * MyApplication2
 * Created by lzw on 2019/12/13. 12:01:18
 * 邮箱：632393724@qq.com
 * All Rights Saved! Chongqing AnYun Tech co. LTD
 */
public class ByteUtil {
    /**
     * ByteBuffer 转换 String
     * @param buffer
     * @return
     */
    public static String getString(ByteBuffer buffer)
    {
        Charset charset = null;
        CharsetDecoder decoder = null;
        CharBuffer charBuffer = null;
        try
        {
            charset = Charset.forName("UTF-8");
            decoder = charset.newDecoder();
             charBuffer = decoder.decode(buffer);//用这个的话，只能输出来一次结果，第二次显示为空
//            charBuffer = decoder.decode(buffer.asReadOnlyBuffer());
            return charBuffer.toString();
        }
        catch (Exception ex)
        {
            ex.printStackTrace();
            return "";
        }
    }
}