From 263671b4a257a20c6f4e3c1eab2a5065ca27b3a9 Mon Sep 17 00:00:00 2001
From: zengh <123456>
Date: Thu, 12 Aug 2021 16:24:20 +0800
Subject: [PATCH] 视频通话

---
 src/main/java/org/springblade/modules/webscoket/service/IPushMsgService.java         |   35 +++
 src/main/java/org/springblade/modules/webscoket/WebSocketHandler.java                |  193 +++++++++++++++++++++
 src/main/java/org/springblade/modules/webscoket/index.html                           |   57 ++++++
 src/main/java/org/springblade/modules/webscoket/ChannelSupervise.java                |   38 ++++
 src/main/java/org/springblade/modules/webscoket/service/impl/PushMsgServiceImpl.java |   65 +++++++
 src/main/java/org/springblade/modules/webscoket/WebSocketServer.java                 |   59 ++++++
 src/main/java/org/springblade/modules/webscoket/controller/PushMsgController.java    |   59 ++++++
 7 files changed, 506 insertions(+), 0 deletions(-)

diff --git a/src/main/java/org/springblade/modules/webscoket/ChannelSupervise.java b/src/main/java/org/springblade/modules/webscoket/ChannelSupervise.java
new file mode 100644
index 0000000..141cff9
--- /dev/null
+++ b/src/main/java/org/springblade/modules/webscoket/ChannelSupervise.java
@@ -0,0 +1,38 @@
+package org.springblade.modules.webscoket;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelId;
+import io.netty.channel.group.ChannelGroup;
+import io.netty.channel.group.DefaultChannelGroup;
+import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
+import io.netty.util.concurrent.GlobalEventExecutor;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+public class ChannelSupervise {
+	private   static ChannelGroup GlobalGroup=new DefaultChannelGroup(GlobalEventExecutor.INSTANCE);
+	private  static ConcurrentMap<String, ChannelId> ChannelMap=new ConcurrentHashMap();
+	private  static Map<String, String> map = new HashMap<String, String>();;
+	public  static void addChannel(Channel channel,String name){
+		GlobalGroup.add(channel);
+		ChannelMap.put(channel.id().asShortText(),channel.id());
+		map.put(channel.id().asShortText(),name);
+	}
+	public static void removeChannel(Channel channel){
+		GlobalGroup.remove(channel);
+		ChannelMap.remove(channel.id().asShortText());
+		map.remove(channel.id().asShortText());
+	}
+	public static  Channel findChannel(String id){
+		return GlobalGroup.find(ChannelMap.get(id));
+	}
+	public static String findName(String id){
+	return map.get(id);
+	}
+	public static void send2All(TextWebSocketFrame tws){
+		GlobalGroup.writeAndFlush(tws);
+	}
+
+}
diff --git a/src/main/java/org/springblade/modules/webscoket/WebSocketHandler.java b/src/main/java/org/springblade/modules/webscoket/WebSocketHandler.java
new file mode 100644
index 0000000..2e4796d
--- /dev/null
+++ b/src/main/java/org/springblade/modules/webscoket/WebSocketHandler.java
@@ -0,0 +1,193 @@
+package org.springblade.modules.webscoket;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONObject;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.SimpleChannelInboundHandler;
+import io.netty.handler.codec.http.DefaultFullHttpResponse;
+import io.netty.handler.codec.http.FullHttpRequest;
+import io.netty.handler.codec.http.HttpResponseStatus;
+import io.netty.handler.codec.http.HttpVersion;
+import io.netty.handler.codec.http.websocketx.*;
+import io.netty.util.AttributeKey;
+import io.netty.util.CharsetUtil;
+import org.springblade.modules.nettyServer.NettyConfig;
+import org.springblade.modules.suser.service.ISuserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.PostConstruct;
+
+@Component
+public class WebSocketHandler extends SimpleChannelInboundHandler<Object> {
+
+	private WebSocketServerHandshaker handshaker;
+
+	private  String on=null;
+
+	@Autowired
+	private  ISuserService suserService;
+
+	private static WebSocketHandler webSocketHandler;
+
+	@PostConstruct
+	public void init() {
+		webSocketHandler = this;
+	}
+
+	@Override
+	protected void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
+		if (msg instanceof FullHttpRequest) {
+			//以http请求形式接入,但是走的是websocket
+			handleHttpRequest(ctx, (FullHttpRequest) msg);
+		} else if (msg instanceof WebSocketFrame) {
+			//处理websocket客户端的消息
+			handlerWebSocketFrame(ctx, (WebSocketFrame) msg);
+		}
+	}
+
+	@Override
+	public void channelActive(ChannelHandlerContext ctx) throws Exception {
+		//添加连接
+		System.out.println("客户端加入连接:" + ctx.channel());
+		//ChannelSupervise.addChannel(ctx.channel());
+	}
+
+	@Override
+	public void channelInactive(ChannelHandlerContext ctx) throws Exception {
+		//断开连接
+		System.out.println("客户端断开连接:" + ctx.channel());
+		//用户离线状态
+		String name = ChannelSupervise.findName(ctx.channel().id().asShortText());
+		System.out.println(name);
+		if ( name != null &&!name.equals("ping") ){
+			NettyConfig.getChannelGroup().remove(ctx.channel());
+			removeUserId(ctx);
+		}
+	}
+
+	@Override
+	public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
+		ctx.flush();
+	}
+
+	private void handlerWebSocketFrame(ChannelHandlerContext ctx, WebSocketFrame frame) throws NumberFormatException, Exception {
+		// 判断是否关闭链路的指令
+		if (frame instanceof CloseWebSocketFrame) {
+			handshaker.close(ctx.channel(), (CloseWebSocketFrame) frame.retain());
+			return;
+		}
+		// 判断是否ping消息
+		if (frame instanceof PingWebSocketFrame) {
+			ctx.channel().write(
+				new PongWebSocketFrame(frame.content().retain()));
+			return;
+		}
+		// 本例程仅支持文本消息,不支持二进制消息
+		if (!(frame instanceof TextWebSocketFrame)) {
+			System.out.println("本例程仅支持文本消息,不支持二进制消息");
+			throw new UnsupportedOperationException(String.format(
+				"%s frame types not supported", frame.getClass().getName()));
+		}
+		// 返回应答消息
+		String request = ((TextWebSocketFrame) frame).text();
+
+		if (!request.equals("ping")){
+
+			JSONObject jsonObj = JSON.parseObject(request);
+			String type = jsonObj.get("type").toString();
+
+			if (type != null && type.equals("login")){
+				//登录链接
+				String id = jsonObj.get("id").toString();
+				NettyConfig.getUserChannelMap().put(id,ctx.channel());
+
+				System.out.println(jsonObj.get("type"));
+				System.out.println(jsonObj.get("id"));
+
+				//将用户id作为自定义属性加入到channel 中,方便随时channel中获取用户id
+				AttributeKey<String> key = AttributeKey.valueOf("userId");
+				ctx.channel().attr(key).setIfAbsent(id);
+				//把用户信息添加到通道里
+				ChannelSupervise.addChannel(ctx.channel(),id);
+			}
+
+
+
+
+
+
+		}
+
+//		TextWebSocketFrame tws = new TextWebSocketFrame(new Date().toString()
+//			+ ctx.channel().id() + ":" + ctx.channel());
+//		// 返回【谁发的发给谁】
+//
+//		ctx.channel().writeAndFlush(tws);
+		// 群发
+		//  ChannelSupervise.send2All(tws);
+	}
+
+	/**
+	 * 唯一的一次http请求,用于创建websocket
+	 *
+	 * @throws InterruptedException
+	 */
+	private void handleHttpRequest(final ChannelHandlerContext ctx,
+								   FullHttpRequest req) throws InterruptedException {
+		//要求Upgrade为websocket,过滤掉get/Post
+		if (!req.decoderResult().isSuccess() || (!"websocket".equals(req.headers().get("Upgrade")))) {
+			//若不是websocket方式,则创建BAD_REQUEST的req,返回给客户端
+			sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.BAD_REQUEST));
+			return;
+		}
+		//握手
+		WebSocketServerHandshakerFactory wsFactory = new WebSocketServerHandshakerFactory(
+			"ws://localhost:9034/websocket", null, false);
+		handshaker = wsFactory.newHandshaker(req);
+		if (handshaker == null) {
+			WebSocketServerHandshakerFactory
+				.sendUnsupportedVersionResponse(ctx.channel());
+		} else {
+			handshaker.handshake(ctx.channel(), req);
+		}
+	}
+
+	/**
+	 * 拒绝不合法的请求,并返回错误信息
+	 */
+	private static void sendHttpResponse(ChannelHandlerContext ctx,
+										 FullHttpRequest req, DefaultFullHttpResponse res) {
+		// 返回应答给客户端
+		if (res.status().code() != 200) {
+			ByteBuf buf = Unpooled.copiedBuffer(res.status().toString(),
+				CharsetUtil.UTF_8);
+			res.content().writeBytes(buf);
+			buf.release();
+		}
+		ChannelFuture f = ctx.channel().writeAndFlush(res);
+		// 如果是非Keep-Alive,关闭连接
+//		if (!isKeepAlive(req) || res.status().code() != 200) {
+//			f.addListener(ChannelFutureListener.CLOSE);
+//		}
+	}
+	@Override
+	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
+		cause.printStackTrace();
+		ctx.close();
+	}
+
+	/**
+	 * 删除用户与channel 对应关系
+	 * @param ctx
+	 */
+	private void removeUserId(ChannelHandlerContext ctx){
+		AttributeKey<String> key = AttributeKey.valueOf("userId");
+		String userId = ctx.channel().attr(key).get();
+		NettyConfig.getUserChannelMap().remove(userId);
+	}
+
+}
diff --git a/src/main/java/org/springblade/modules/webscoket/WebSocketServer.java b/src/main/java/org/springblade/modules/webscoket/WebSocketServer.java
new file mode 100644
index 0000000..a47840a
--- /dev/null
+++ b/src/main/java/org/springblade/modules/webscoket/WebSocketServer.java
@@ -0,0 +1,59 @@
+package org.springblade.modules.webscoket;
+import io.netty.bootstrap.ServerBootstrap;
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.ChannelOption;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.channel.socket.nio.NioServerSocketChannel;
+import io.netty.handler.codec.http.HttpObjectAggregator;
+import io.netty.handler.codec.http.HttpServerCodec;
+import io.netty.handler.logging.LogLevel;
+import io.netty.handler.logging.LoggingHandler;
+import io.netty.handler.stream.ChunkedWriteHandler;
+
+public class WebSocketServer {
+	private int port = 9034;
+
+	public WebSocketServer(int port) {
+		bind(port);
+	}
+
+	public void bind(int port) {
+		Thread thread = new Thread(new Runnable() {
+			@Override
+			public void run() {
+				EventLoopGroup bossGroup = new NioEventLoopGroup();
+				EventLoopGroup workerGroup = new NioEventLoopGroup();
+				try {
+					ServerBootstrap serverBootstrap = new ServerBootstrap();
+					serverBootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
+						.handler(new LoggingHandler(LogLevel.INFO))
+						//保持连接
+						.childOption(ChannelOption.SO_KEEPALIVE, true)
+						.childHandler(new ChannelInitializer<SocketChannel>() {
+							@Override
+							protected void initChannel(SocketChannel ch) {
+//	                            ch.pipeline().addLast("logging",new LoggingHandler("DEBUG"));//设置log监听器,并且日志级别为debug,方便观察运行流程
+								ch.pipeline().addLast("http-codec", new HttpServerCodec());//设置解码器
+								ch.pipeline().addLast("aggregator", new HttpObjectAggregator(65536));//聚合器,使用websocket会用到
+								ch.pipeline().addLast("http-chunked", new ChunkedWriteHandler());//用于大数据的分区传输
+								ch.pipeline().addLast("handler", new WebSocketHandler());//自定义的业务handler
+							}
+						});
+
+					ChannelFuture channelFuture = serverBootstrap.bind(port).sync();
+					System.out.println("WebSocketServer启动成功");
+					channelFuture.channel().closeFuture().sync();
+				} catch (Exception e) {
+					e.printStackTrace();
+				} finally {
+					bossGroup.shutdownGracefully();
+					workerGroup.shutdownGracefully();
+				}
+			}
+		});
+		thread.start();
+	}
+}
diff --git a/src/main/java/org/springblade/modules/webscoket/controller/PushMsgController.java b/src/main/java/org/springblade/modules/webscoket/controller/PushMsgController.java
new file mode 100644
index 0000000..2a3e9a6
--- /dev/null
+++ b/src/main/java/org/springblade/modules/webscoket/controller/PushMsgController.java
@@ -0,0 +1,59 @@
+package org.springblade.modules.webscoket.controller;
+
+import org.springblade.core.tool.api.R;
+import org.springblade.modules.webscoket.service.IPushMsgService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * @author lq
+ * @date 2020/4/1 11:22
+ */
+@RestController
+@RequestMapping("pushMsg")
+public class PushMsgController {
+
+	@Autowired
+	private IPushMsgService pushMsgService;
+
+	@PostMapping("/pushUser")
+	public String pushUser(String userId, String msg) {
+		pushMsgService.pushMsg(userId, msg);
+		return "消息发送成功:" + msg;
+	}
+
+	@PostMapping("/pushAll")
+	public String pushAll(String msg) {
+		pushMsgService.pushMsg(msg);
+		return "消息发送成功:" + msg;
+	}
+
+	@GetMapping("/inviteVideoCall")
+	public R<Map> inviteVideoCall(String userId, String type, String name,String faqiid) {
+		//获取当前时间戳作为房间号
+		String roomId = "";
+		Map<String, Object> map = new HashMap<String, Object>();
+		String time = String.valueOf(new Date().getTime());
+		int msg = pushMsgService.inviteVideoCall(userId, time, type, name,faqiid);
+		map.put("type", type);
+		map.put("roomId", time);
+		map.put("res", msg);
+
+		return R.data(map);
+	}
+
+	@GetMapping("/closeVideoCall")
+	public void closeVideoCall(String sentId, String acceptId) {
+
+		pushMsgService.closeVideoCall(sentId, acceptId);
+
+	}
+
+}
diff --git a/src/main/java/org/springblade/modules/webscoket/index.html b/src/main/java/org/springblade/modules/webscoket/index.html
new file mode 100644
index 0000000..aed5d0a
--- /dev/null
+++ b/src/main/java/org/springblade/modules/webscoket/index.html
@@ -0,0 +1,57 @@
+<html>
+<head>
+    <meta http-equiv="Content-Type" content="text/html; charset = utf-8"/>
+    <title>WebSocket客户端</title>
+    <script type="text/javascript">
+        var socket;
+        if(!window.WebSocket){
+            window.WebSocket = window.MozWebSocket;
+        }
+
+        if(window.WebSocket){
+            socket = new WebSocket("ws://localhost:9034/websocket");
+            socket.onmessage = function(event){
+                var ta = document.getElementById('responseContent');
+                ta.value += event.data + "\r\n";
+            };
+
+            socket.onopen = function(event){
+                var ta = document.getElementById('responseContent');
+                ta.value = "你当前的浏览器支持WebSocket,请进行后续操作\r\n";
+            };
+
+            socket.onclose = function(event){
+                var ta = document.getElementById('responseContent');
+                ta.value = "";
+
+                ta.value = "WebSocket连接已经关闭\r\n";
+            };
+        }else{
+            alert("您的浏览器不支持WebSocket");
+        }
+
+
+
+        function send(message){
+            if(!window.WebSocket){
+                return;
+            }
+            if(socket.readyState == WebSocket.OPEN){
+                socket.send(message);
+            }else{
+                alert("WebSocket连接没有建立成功!!");
+            }
+        }
+    </script>
+</head>
+<body>
+<form onSubmit="return false;">
+    <input type = "text" name = "message" value = ""/>
+    <br/><br/>
+    <input type = "button" value = "发送WebSocket请求消息" onClick = "send(this.form.message.value)"/>
+    <hr color="red"/>
+    <h2>客户端接收到服务端返回的应答消息</h2>
+    <textarea id = "responseContent" style = "width:1024px; height:300px"></textarea>
+</form>
+</body>
+</html>
diff --git a/src/main/java/org/springblade/modules/webscoket/service/IPushMsgService.java b/src/main/java/org/springblade/modules/webscoket/service/IPushMsgService.java
new file mode 100644
index 0000000..57c2a3b
--- /dev/null
+++ b/src/main/java/org/springblade/modules/webscoket/service/IPushMsgService.java
@@ -0,0 +1,35 @@
+package org.springblade.modules.webscoket.service;
+
+/**
+ * @author 123456
+ */
+public interface IPushMsgService {
+
+	/**
+	 * 给指定用户发送消息
+	 *
+	 * @param userId
+	 * @param msg
+	 */
+	void pushMsg(String userId, String msg);
+
+	/**
+	 * 给所有用户发送消息
+	 *
+	 * @param msg
+	 */
+	void pushMsg(String msg);
+
+	/**
+	 * 给指定用户发起视频邀请
+	 */
+	int inviteVideoCall(String userid, String time, String type, String name,String faqiid);
+
+    /**
+	 * 关闭视频请求
+	 *
+	 * @return
+	 */
+	void closeVideoCall(String sentId, String acceptId);
+
+}
diff --git a/src/main/java/org/springblade/modules/webscoket/service/impl/PushMsgServiceImpl.java b/src/main/java/org/springblade/modules/webscoket/service/impl/PushMsgServiceImpl.java
new file mode 100644
index 0000000..1d408ad
--- /dev/null
+++ b/src/main/java/org/springblade/modules/webscoket/service/impl/PushMsgServiceImpl.java
@@ -0,0 +1,65 @@
+package org.springblade.modules.webscoket.service.impl;
+
+import com.alibaba.fastjson.JSONObject;
+import io.netty.channel.Channel;
+import io.netty.channel.group.ChannelGroup;
+import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
+import org.springblade.modules.nettyServer.NettyConfig;
+import org.springblade.modules.webscoket.service.IPushMsgService;
+import org.springframework.stereotype.Service;
+
+/**
+ * @author lq
+ * @date 2020/4/1 11:20
+ */
+@Service
+public class PushMsgServiceImpl implements IPushMsgService {
+	@Override
+	public void pushMsg(String userId, String msg) {
+		Channel channel = NettyConfig.getUserChannelMap().get(userId);
+		if (channel != null) {
+			channel.writeAndFlush(new TextWebSocketFrame(msg));
+		}
+
+	}
+
+	@Override
+	public void pushMsg(String msg) {
+		ChannelGroup group = NettyConfig.getChannelGroup();
+		String name = group.name();
+		System.out.println("空间大小:" + group.size() + ",名字:" + name);
+		group.writeAndFlush(new TextWebSocketFrame(msg));
+	}
+
+	@Override
+	public int inviteVideoCall(String userId, String time, String type, String name,String faqiid) {
+		//返回值
+		int res = 0;
+		Channel channel = NettyConfig.getUserChannelMap().get(userId);
+		JSONObject jsonObject = new JSONObject();
+		jsonObject.put("type", type);
+		jsonObject.put("roomId", time);
+		jsonObject.put("name", name);
+		jsonObject.put("faqiid", faqiid);
+		if (channel != null) {
+			channel.writeAndFlush(new TextWebSocketFrame(String.valueOf(jsonObject)));
+			res = 1;
+		}
+		return res;
+	}
+
+	@Override
+	public void closeVideoCall(String sentId, String acceptId) {
+		Channel channel1 = NettyConfig.getUserChannelMap().get(sentId);
+		Channel channel2 = NettyConfig.getUserChannelMap().get(acceptId);
+		JSONObject jsonObject = new JSONObject();
+		jsonObject.put("type", "close");
+		if (channel1 != null) {
+			channel1.writeAndFlush(new TextWebSocketFrame(String.valueOf(jsonObject)));
+		}
+		if (channel2 != null) {
+			channel2.writeAndFlush(new TextWebSocketFrame(String.valueOf(jsonObject)));
+		}
+
+	}
+}

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