fix content

docs/SUMMARY.md

@@ -217,5 +217,9 @@
   * [系统属性调用-SystemUtil](system/系统属性调用-SystemUtil.md)
 * 图形验证码（Hutool-captcha）
   * [概述](captcha/概述.md)
+* 网络Socket（Hutool-socket）
+  * [概述](socket/概述.md)
+  * [NIO封装-NioServer和NioClient](socket/NIO封装-NioServer和NioClient.md)
+  * [AIO封装-AioServer和AioClient](socket/AIO封装-AioServer和AioClient.md)
 * [Hutool的朋友们](Hutool的朋友们.md)
 * [捐赠使用公开](捐赠使用公开.md)

docs/socket/AIO封装-AioServer和AioClient.md

@@ -0,0 +1,57 @@
+## 由来
+
+在JDK7+后，提供了异步Socket库——AIO，Hutool对其进行了简单的封装。
+
+## 使用
+
+### 服务端
+
+```java
+AioServer aioServer = new AioServer(8899);
+aioServer.setIoAction(new SimpleIoAction() {
+
+	@Override
+	public void accept(AioSession session) {
+		StaticLog.debug("【客户端】：{} 连接。", session.getRemoteAddress());
+		session.write(BufferUtil.createUtf8("=== Welcome to Hutool socket server. ==="));
+	}
+
+	@Override
+	public void doAction(AioSession session, ByteBuffer data) {
+		Console.log(data);
+
+		if(false == data.hasRemaining()) {
+			StringBuilder response = StrUtil.builder()//
+					.append("HTTP/1.1 200 OK\r\n")//
+					.append("Date: ").append(DateUtil.formatHttpDate(DateUtil.date())).append("\r\n")//
+					.append("Content-Type: text/html; charset=UTF-8\r\n")//
+					.append("\r\n")
+					.append("Hello Hutool socket");//
+			session.writeAndClose(BufferUtil.createUtf8(response));
+		}else {
+			session.read();
+		}
+	}
+}).start(true);
+```
+
+### 客户端
+
+```java
+AioClient client = new AioClient(new InetSocketAddress("localhost", 8899), new SimpleIoAction() {
+
+	@Override
+	public void doAction(AioSession session, ByteBuffer data) {
+		if(data.hasRemaining()) {
+			Console.log(StrUtil.utf8Str(data));
+			session.read();
+		}
+		Console.log("OK");
+	}
+});
+
+client.write(ByteBuffer.wrap("Hello".getBytes()));
+client.read();
+
+client.close();
+```

docs/socket/NIO封装-NioServer和NioClient.md

@@ -0,0 +1,81 @@
+## 由来
+
+Hutool对NIO其进行了简单的封装。
+
+## 使用
+
+### 服务端
+
+```java
+NioServer server = new NioServer(8080);
+server.setChannelHandler((sc)->{
+	ByteBuffer readBuffer = ByteBuffer.allocate(1024);
+	try{
+		//从channel读数据到缓冲区
+		int readBytes = sc.read(readBuffer);
+		if (readBytes > 0) {
+			//Flips this buffer.  The limit is set to the current position and then
+			// the position is set to zero，就是表示要从起始位置开始读取数据
+			readBuffer.flip();
+			//eturns the number of elements between the current position and the  limit.
+			// 要读取的字节长度
+			byte[] bytes = new byte[readBuffer.remaining()];
+			//将缓冲区的数据读到bytes数组
+			readBuffer.get(bytes);
+			String body = StrUtil.utf8Str(bytes);
+			Console.log("[{}]: {}", sc.getRemoteAddress(), body);
+			doWrite(sc, body);
+		} else if (readBytes < 0) {
+			IoUtil.close(sc);
+		}
+	} catch (IOException e){
+		throw new IORuntimeException(e);
+	}
+});
+server.listen();
+```
+
+```java
+public static void doWrite(SocketChannel channel, String response) throws IOException {
+	response = "收到消息：" + response;
+	//将缓冲数据写入渠道，返回给客户端
+	channel.write(BufferUtil.createUtf8(response));
+}
+```
+
+### 客户端
+
+```java
+NioClient client = new NioClient("127.0.0.1", 8080);
+client.setChannelHandler((sc)->{
+	ByteBuffer readBuffer = ByteBuffer.allocate(1024);
+	//从channel读数据到缓冲区
+	int readBytes = sc.read(readBuffer);
+	if (readBytes > 0) {
+		//Flips this buffer.  The limit is set to the current position and then
+		// the position is set to zero，就是表示要从起始位置开始读取数据
+		readBuffer.flip();
+		//returns the number of elements between the current position and the  limit.
+		// 要读取的字节长度
+		byte[] bytes = new byte[readBuffer.remaining()];
+		//将缓冲区的数据读到bytes数组
+		readBuffer.get(bytes);
+		String body = StrUtil.utf8Str(bytes);
+		Console.log("[{}]: {}", sc.getRemoteAddress(), body);
+	} else if (readBytes < 0) {
+		sc.close();
+	}
+});
+client.listen();
+client.write(BufferUtil.createUtf8("你好。\n"));
+client.write(BufferUtil.createUtf8("你好2。"));
+// 在控制台向服务器端发送数据
+Console.log("请输入发送的消息：");
+Scanner scanner = new Scanner(System.in);
+while (scanner.hasNextLine()) {
+	String request = scanner.nextLine();
+	if (request != null && request.trim().length() > 0) {
+		client.write(BufferUtil.createUtf8(request));
+	}
+}
+```

docs/socket/概述.md

@@ -0,0 +1,27 @@
+## 模块介绍
+
+### Socket介绍
+
+介绍来自：https://www.liaoxuefeng.com/wiki/1252599548343744/1305207629676577
+
+在开发网络应用程序的时候，我们又会遇到Socket这个概念。Socket是一个抽象概念，一个应用程序通过一个Socket来建立一个远程连接，而Socket内部通过TCP/IP协议把数据传输到网络：
+
+### Hutool封装
+
+JDK中提供了Socket功能，包括：
+
+- BIO
+- NIO
+- AIO
+
+Hutool只针对NIO和AIO做了简单的封装，用于简化Socket异步开发。
+
+> 现阶段，Hutool的socket封装依旧不是一个完整框架或者高效的工具类，不能提供完整的高性能IO功能，因此推荐更加专业的Socket库。例如：
+
+> [t-io](https://www.t-io.org/)
+
+> [Voovan](http://www.voovan.org/)
+
+> [Netty](https://netty.io/)
+
+> [Mina](http://mina.apache.org/)

index.html

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