Java StringDecoder类代码示例

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
private void switchToBinary(ChannelHandlerContext ctx) {
    ChannelPipeline p = ctx.pipeline();
    p.addLast(new DelimiterBasedFrameDecoder(maxFrameLength, Delimiters.lineDelimiter()));
    p.addLast(new StringDecoder(Charset.forName(charset)));
    p.addLast(new NetoJsonToMessageDecoder(opcodeMap));

    NetoMessageToJsonEncoder netoMessageToJsonEncoder = new NetoMessageToJsonEncoder();
    netoMessageToJsonEncoder.setOpcodeMap(opcodeMap);

    p.addLast(netoMessageToJsonEncoder);
    p.addLast(new MessageHandler(redisService));
    p.remove(this);


    // 핸들러를 다시 등록 했으므로 이벤트를 전파
    ctx.fireChannelActive();
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
@Override
protected void initChannel(SocketChannel ch) throws Exception {

    NetoJsonToMessageDecoder decoder = new NetoJsonToMessageDecoder(opcodeMap);
    NetoMessageToJsonEncoder encoder = new NetoMessageToJsonEncoder();

    if (opcodeMap instanceof BiMap) {
        encoder.setOpcodeMap((BiMap<Integer, Class<? extends NetoJsonMessage>>) opcodeMap);
    }

    MessageHandler handler = new MessageHandler(redisService);

    ChannelPipeline p = ch.pipeline();

    p.addLast(new DelimiterBasedFrameDecoder(maxFrameLength, Delimiters.lineDelimiter()));
    p.addLast(new StringDecoder(Charset.forName(charset)));
    p.addLast(decoder);
    p.addLast(encoder);
    p.addLast(handler);
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
@Override
public void initChannel(SocketChannel ch) throws Exception {
    ChannelPipeline pipeline = ch.pipeline();

    pipeline.addLast(new LoggingHandler());
    // Add SSL handler first to encrypt and decrypt everything.
    // In this example, we use a bogus certificate in the server side
    // and accept any invalid certificates in the client side.
    // You will need something more complicated to identify both
    // and server in the real world.
    if (sslCtx != null)
        pipeline.addLast(sslCtx.newHandler(ch.alloc(), SecureChatClient.HOST, SecureChatClient.PORT));

    // On top of the SSL handler, add the text line codec.
    pipeline.addLast(new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
    pipeline.addLast(new StringDecoder());
    pipeline.addLast(new StringEncoder());

    // and then business logic.
    pipeline.addLast(new SecureChatClientHandler());
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
@Test
public void serverBootStrapWithOptionsTest() throws InstantiationException, IllegalAccessException, ClassNotFoundException {
	LinkedHashMap<String, Object> channelHandlerOptions = new LinkedHashMap<String, Object>();
	
	channelHandlerOptions.put("lineFrame", new LineBasedFrameDecoder(2000));
	channelHandlerOptions.put("decoder", new StringDecoder());
	channelHandlerOptions.put("encoder", new StringEncoder());
	channelHandlerOptions.put("handler", new ChannelInboundHandlerAdapter() {
		
		@Override
		public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
			log.info("Message Received and forward to ConsumerProcessor. Msg -> {}", msg);
		}
	});
	
	Server server = BootStrap.builder()
			.port(5252)
			.options(channelHandlerOptions)
			.messageConsumer(msg -> log.info(msg))
			.build();
	
	assertNotNull(server);
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
public EchoClient(String host, int port) {
    EventLoopGroup worker = new NioEventLoopGroup();

    Bootstrap b = new Bootstrap();

    b.group(worker)
            .channel(NioSocketChannel.class)
            .option(ChannelOption.SO_KEEPALIVE, true)
            .handler(new ChannelInitializer<SocketChannel>() {
                @Override
                protected void initChannel(SocketChannel socketChannel) {
                    socketChannel.pipeline()
                            .addLast(new StringDecoder())
                            .addLast(new StringEncoder())
                            .addLast(ech);
                }
            });

    b.connect(host, port);
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
public void connect(int port, String host) throws InterruptedException {
	
	EventLoopGroup group = new NioEventLoopGroup();
	try{
		Bootstrap b = new Bootstrap();
		b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
		.handler(new ChannelInitializer<SocketChannel>() {

			@Override
			protected void initChannel(SocketChannel ch) throws Exception {
				ch.pipeline().addLast(new LineBasedFrameDecoder(1024));
				ch.pipeline().addLast(new StringDecoder());
				ch.pipeline().addLast(new TimeClientHandler());
			}
			
		});
		
		//发送异步链接操作
		ChannelFuture f = b.connect(host, port).sync();
		//等待客户端链路关闭
		f.channel().closeFuture().sync();
	}finally{
		group.shutdownGracefully();
	}
	
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
@Override
protected void initChannel(SocketChannel ch) throws Exception {
	ch.config().setAllowHalfClosure(true);
	ChannelPipeline pipeline = ch.pipeline();

	//IdleStateHandler 与客户端链接后，根据超出配置的时间自动触发userEventTriggered
	//readerIdleTime服务端长时间没有读到数据，则为读空闲，触发读空闲监听，并自动关闭链路连接，周期性按readerIdleTime的超时间触发空闲监听方法
	//writerIdleTime服务端长时间没有发送写请求，则为空闲，触发写空闲监听,空闲期间，周期性按writerIdleTime的超时间触发空闲监听方法
	//allIdleTime 服务端在allIdleTime时间内未接收到客户端消息，或者，也未去向客户端发送消息，则触发周期性操作
	pipeline.addLast("ping", new IdleStateHandler(10, 20, 35, TimeUnit.SECONDS));
	// 以("\n")为结尾分割的 解码器
	pipeline.addLast("framer", new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
	// 字符串解码 和 编码
	pipeline.addLast("decoder", new StringDecoder());
	pipeline.addLast("encoder", new StringEncoder());
	// 自己的逻辑Handler
	pipeline.addLast("handler", new DataServerHandler(nodeInfo));
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
public void connect(String host, int port) throws InterruptedException {
    EventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group)
                .channel(NioSocketChannel.class)
                .option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {

                        ch.pipeline().addLast(new FixedLengthFrameDecoder(1<<5));
                        ch.pipeline().addLast(new StringDecoder());
                        ch.pipeline().addLast(new StringEncoder());

                        ch.pipeline().addLast(new ClientHandler());
                    }
                });

        ChannelFuture future = b.connect(host, port).sync();

        future.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully();
    }
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
@Override
protected void initChannel(SocketChannel socketChannel) throws Exception {
    ChannelPipeline pipeline = socketChannel.pipeline();
    pipeline.addLast("framer", new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()))
            .addLast("decoder", new StringDecoder())
            .addLast("encoder", new StringEncoder())
            .addLast("json_to_ob",new JsonToObjectHandler())
            .addLast("register",new RegisterHandler())
            .addLast("authority", new AuthorityHandler())
            .addLast("enterGroup",new EnterGroupHandler())
            .addLast("channelManager", new ChannelManagerHandler())
            .addLast("createGroup", new CreateGroupHandler())
            .addLast("addGroup", new AddGroupHandler())
            .addLast("deleteGroup",new DeleteGroupHandler())
            .addLast("Limiter", new LimiterHandler())
            .addLast("log", new LoggerHandler())
            .addLast("response", new Responser());
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
@Override
protected void initChannel(SocketChannel ch) throws Exception {
    ChannelPipeline pipeline = ch.pipeline();

    /*
     * 这个地方的 必须和服务端对应上。否则无法正常解码和编码
     * 
     * 解码和编码 我将会在下一张为大家详细的讲解。再次暂时不做详细的描述
     */
    pipeline.addLast("framer", new DelimiterBasedFrameDecoder(8192,
            Delimiters.lineDelimiter()));
    pipeline.addLast("decoder", new StringDecoder());
    pipeline.addLast("encoder", new StringEncoder());

    // 客户端的逻辑
    pipeline.addLast("handler", new HelloClientHandler());
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
@Override
public void initChannel(SocketChannel ch) throws Exception {
    ChannelPipeline pipeline = ch.pipeline();

    // Add SSL handler first to encrypt and decrypt everything.
    // In this example, we use a bogus certificate in the server side
    // and accept any invalid certificates in the client side.
    // You will need something more complicated to identify both
    // and server in the real world.
    pipeline.addLast(sslCtx.newHandler(ch.alloc()));

    // On top of the SSL handler, add the text line codec.
    pipeline.addLast(new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
    pipeline.addLast(new StringDecoder());
    pipeline.addLast(new StringEncoder());

    // and then business logic.
    pipeline.addLast(new SecureChatServerHandler());
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
@Override
public void initChannel(SocketChannel ch) throws Exception {
    ChannelPipeline pipeline = ch.pipeline();

    // Add SSL handler first to encrypt and decrypt everything.
    // In this example, we use a bogus certificate in the server side
    // and accept any invalid certificates in the client side.
    // You will need something more complicated to identify both
    // and server in the real world.
    pipeline.addLast(sslCtx.newHandler(ch.alloc(), SecureChatClient.HOST, SecureChatClient.PORT));

    // On top of the SSL handler, add the text line codec.
    pipeline.addLast(new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
    pipeline.addLast(new StringDecoder());
    pipeline.addLast(new StringEncoder());

    // and then business logic.
    pipeline.addLast(new SecureChatClientHandler());
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
public static void main(String[] args) throws Exception {
    EventLoopGroup group = new OioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group)
         .channel(RxtxChannel.class)
         .handler(new ChannelInitializer<RxtxChannel>() {
             @Override
             public void initChannel(RxtxChannel ch) throws Exception {
                 ch.pipeline().addLast(
                     new LineBasedFrameDecoder(32768),
                     new StringEncoder(),
                     new StringDecoder(),
                     new RxtxClientHandler()
                 );
             }
         });

        ChannelFuture f = b.connect(new RxtxDeviceAddress(PORT)).sync();

        f.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully();
    }
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
public static void service() throws Exception {
    ServerBootstrap bootstrap = new ServerBootstrap();
    bootstrap.group(bossGroup, workerGroup);
    bootstrap.channel(NioServerSocketChannel.class);
    bootstrap.childHandler(new ChannelInitializer<Channel>() {

        @Override
        protected void initChannel(Channel ch) throws Exception {
            ChannelPipeline pipeline = ch.pipeline();
            pipeline.addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
            pipeline.addLast(new LengthFieldPrepender(4));
            pipeline.addLast(new StringDecoder(CharsetUtil.UTF_8));
            pipeline.addLast(new StringEncoder(CharsetUtil.UTF_8));
            pipeline.addLast(new TcpServerHandler());
        }

    });
    ChannelFuture f = bootstrap.bind(IP, PORT).sync();
    f.channel().closeFuture().sync();
    System.out.println("TCP服务器已启动");
}
 

import io.netty.handler.codec.string.StringDecoder; //导入依赖的package包/类
/**
 * 初始化Bootstrap
 * @return
 */
public static final Bootstrap getBootstrap(){
	EventLoopGroup group = new NioEventLoopGroup();
	Bootstrap b = new Bootstrap();
	b.group(group).channel(NioSocketChannel.class);
	b.handler(new ChannelInitializer<Channel>() {
		@Override
		protected void initChannel(Channel ch) throws Exception {
			ChannelPipeline pipeline = ch.pipeline();
			pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
			pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
			pipeline.addLast("decoder", new StringDecoder(CharsetUtil.UTF_8));
			pipeline.addLast("encoder", new StringEncoder(CharsetUtil.UTF_8));
			pipeline.addLast("handler", new TcpClientHandler());
		}
	});
	b.option(ChannelOption.SO_KEEPALIVE, true);
	return b;
}