在Netty使用过程中遇到的CodecException: invalid WebSocket Extension handshake

在使用netty的时候出现CodecException: invalid WebSocket Extension handshake异常

将原生的ChannelHandler：

private WebSocketClientCompressionHandler() {
        super(new PerMessageDeflateClientExtensionHandshaker(),
            new DeflateFrameClientExtensionHandshaker(false),
            new DeflateFrameClientExtensionHandshaker(true));
}

替换一下：

private CustomWebSocketClientCompressionHandler() {
        super(new PerMessageDeflateClientExtensionHandshaker(6,ZlibCodecFactory.isSupportingWindowSizeAndMemLevel(),MAX_WINDOW_SIZE, true, true),
            new DeflateFrameClientExtensionHandshaker(false),
            new DeflateFrameClientExtensionHandshaker(true));
}