FileServerHandler.java 文件源码

@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
    cause.printStackTrace();
    if (ctx.channel().isActive()) {
        ctx.writeAndFlush("ERR: " + cause.getClass().getSimpleName() + ": " + cause.getMessage() + '\n')
                .addListener(ChannelFutureListener.CLOSE);
    }
}