求助如何为Netty客户端加上代理功能

已经为Channel加上了本地代理，但是不起作用

private class TCPChannelInitializerHandler extends ChannelInitializer<Channel> {
@Override
    protected void initChannel(Channel ch) throws Exception {
ChannelPipeline pipeline = ch.pipeline();
        pipeline.addFirst(new Socks5ProxyHandler(new InetSocketAddress("127.0.0.1", 9050)));
        pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(
                TCP_FRAME_FIXED_HEADER_LENGTH + TCP_FRAME_MAX_BODY_LENGTH
, 0, TCP_FRAME_FIXED_HEADER_LENGTH, 0, TCP_FRAME_FIXED_HEADER_LENGTH));
        pipeline.addLast("frameEncoder", new LengthFieldPrepender(TCP_FRAME_FIXED_HEADER_LENGTH));
        pipeline.addLast(TcpClientHandler.class.getSimpleName(), new TcpClientHandler());
    }
}

没做过代理这样的需求，你多找一下资料和网上的demo跑跑试试