44 lines
1.7 KiB
Java
44 lines
1.7 KiB
Java
package com.cf.chat.netty;
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import io.netty.channel.ChannelInitializer;
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import io.netty.channel.ChannelPipeline;
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import io.netty.channel.socket.SocketChannel;
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import io.netty.handler.codec.http.HttpObjectAggregator;
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import io.netty.handler.codec.http.HttpServerCodec;
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import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler;
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import io.netty.handler.stream.ChunkedWriteHandler;
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import io.netty.handler.timeout.IdleStateHandler;
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public class WebsocketInitializer extends ChannelInitializer<SocketChannel> {
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@Override
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protected void initChannel(SocketChannel ch) throws Exception {
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ChannelPipeline pipeline = ch.pipeline();
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// ------------------
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// 用于支持Http协议
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// ------------------
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// websocket基于http协议，需要有http的编解码器
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pipeline.addLast(new HttpServerCodec());
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// 对写大数据流的支持
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pipeline.addLast(new ChunkedWriteHandler());
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// 添加对HTTP请求和响应的聚合器:只要使用Netty进行Http编程都需要使用
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// 对HttpMessage进行聚合，聚合成FullHttpRequest或者FullHttpResponse
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// 在netty编程中都会使用到Handler
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pipeline.addLast(new HttpObjectAggregator(1024 * 64));
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pipeline.addLast(new WebSocketServerProtocolHandler("/ws"));
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// 添加Netty空闲超时检查的支持
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// 1. 读空闲超时（超过一定的时间会发送对应的事件消息）
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// 2. 写空闲超时
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// 3. 读写空闲超时
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pipeline.addLast(new IdleStateHandler(4, 8, 12));
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pipeline.addLast(new HearBeatHandler());
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// 添加自定义的handler
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pipeline.addLast(new ChatHandler());
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}
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}
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