@Override
    public byte[] encodeParam(Charset charset) {
        // 运行时参数在此计算值
        this.pathSize = path.getBytes(charset).length;
        return super.encodeParam(charset);
    }
@ Override public byte [ ] encodeParam ( Charset charset ) { this . pathSize = path . getBytes ( charset ) . length ; return super . encodeParam ( charset ) ; }
打包参数