Netty WebSocket

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Theory

Server

Client

Error

io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record

在Netty中，如果开启了https，但是你使用http请求来发送请求，那么会打印一个SSL/TLS异常

javax.net.ssl.SSLException: Received fatal alert: handshake_failure

PooledUnsafeDirectByteBuf(ridx: 0, widx: 50, cap: 50)

https://caorong.github.io/2016/08/27/netty-hole/

An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.

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class WsErrorHandler(private val name: String = "") : ChannelHandler {
    companion object {
        private val logger = LoggerFactory.getLogger(WsErrorHandler::class.java)
    }

    override fun handlerAdded(handlerContext: ChannelHandlerContext?) {

    }

    override fun exceptionCaught(handlerContext: ChannelHandlerContext?, error: Throwable?) {
        logger.error("exceptionCaught(): $name", error)
    }

    override fun handlerRemoved(handlerContext: ChannelHandlerContext?) {
    }

}

pipeline.addLast(WsErrorHandler(name))

Reference