springboot 集成ffmpeg 推拉流

1、建立一个maven项目（我这里使用的是eclipse创建的 maven项目）

File——>new——>other——>maven

2、修改jdk版本，必须为1.8

3、整个项目目录如下

4、pom.xml文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.han</groupId>
	<artifactId>SpringBoot-WebSocket</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>SpringBoot-WebSocket Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.5.RELEASE</version>
		<relativePath />
	</parent>
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>
	<dependencies>
		<!-- json工具 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>fastjson</artifactId>
			<version>LATEST</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-websocket</artifactId>
		</dependency>

		<dependency>
			<groupId>org.projectlombok</groupId>
			<artifactId>lombok</artifactId>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<!--html-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-thymeleaf</artifactId>
		</dependency>
	</dependencies>
	<build>
		<finalName>SpringBoot-WebSocket</finalName>
	</build>
</project>

WebSocketServer服务器端实现

package com.han.websocket;

import java.io.IOException;
import java.util.concurrent.CopyOnWriteArraySet;

import javax.websocket.OnClose;
import javax.websocket.OnError;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;

import org.springframework.stereotype.Component;

/**
 * WebSocketServer服务器端
 * 
 * @author han
 *
 */
@Component
@ServerEndpoint("/WebSocketServer")
public class WebSocketServer {
	// 静态变量，用来记录当前在线连接数,应该把它设计成线程安全的
	private static int onlineCount = 0;
	// concurrent包的线程安全Set，用来存放每个客户端对应的MyWebSocket对象，若要实现服务端与单一客户端通信的话，可以使用Map来存放，其中Key可以为用户标识
	private static CopyOnWriteArraySet<WebSocketServer> webSockets = new CopyOnWriteArraySet<WebSocketServer>();
	private Session session;

	@OnOpen
	public void onOpen(Session session) {
		this.session = session;
		webSockets.add(this);
		addOnlineCount(); // 在线数加1
		System.out.println("【websocket消息】有新的连接，当前总数为：" + webSockets.size());
	}

	@OnClose
	public void onClose() {
		webSockets.remove(this);
		subOnlineCount(); // 在线数减1
		System.out.println("【websocket消息】连接断开，当前总数为：" + webSockets.size());
	}

	@OnMessage
	public void onMessage(String message) {
		System.out.println("【websocket消息】收到消息：" + message);
	}

	/**
	 * 
	 * @param session
	 * @param error
	 */
	@OnError
	public void onError(Session session, Throwable error) {
		System.out.println("【websocket发生错误】：" + error);
		error.printStackTrace();
	}

	/**
	 * 服务器主动推送消息
	 */
	public void sendMessage(String message) {
		try {
			for (WebSocketServer webSocket : webSockets) {
				System.out.println("【websocket消息】发送消息：" + message);
				webSocket.session.getBasicRemote().sendText(message);
			}

		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public static synchronized int getOnlineCount() {
		return onlineCount;
	}

	public static synchronized void addOnlineCount() {
		WebSocketServer.onlineCount++;
	}

	public static synchronized void subOnlineCount() {
		WebSocketServer.onlineCount--;
	}
}

WebSocketConfig配置断点

package com.han.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.socket.config.annotation.EnableWebSocket;
import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;
import org.springframework.web.socket.server.standard.ServerEndpointExporter;

/**
 * webSocket配置类，绑定前端连接端点url及其他信息
 * 
 * @author han
 *
 */
@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {

	@Bean
	public ServerEndpointExporter serverEndpointExporter() {
		return new ServerEndpointExporter();
	}

	/**
	 * 注册webSocket端点
	 */
	public void registerStompEndpoints(StompEndpointRegistry registry) {
		// 添加一个/WebSocketServer端点，客户端就可以通过这个端点来进行连接；withSockJS作用是添加SockJS支持
		registry.addEndpoint("/WebSocketServer").setAllowedOrigins("*").withSockJS();
	}
}

WebSocketController控制器

package com.han.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import com.han.util.Result;
import com.han.websocket.WebSocketServer;

/**
 * webSocket访问控制器
 * 
 * @author han
 *
 */
@Controller
public class WebSocketController {
	@Autowired
	private WebSocketServer webSocketServer;

	@RequestMapping("/index")
	public String index(String mesaage) {
		return "/index";
	}

	/**
	 * 发送消息页面
	 * 
	 * @param mesaage
	 * @return
	 */
	@RequestMapping("/webSocket/senMessage")
	public ModelAndView senMessage(String mesaage) {
		ModelAndView mav = new ModelAndView("/sendMessage");
		return mav;
	}

	/**
	 * 接收消息页面
	 * 
	 * @param mesaage
	 * @return
	 */
	@RequestMapping("/webSocket/receiveMessage")
	public ModelAndView receiveMessage(String mesaage) {
		ModelAndView mav = new ModelAndView("/receiveMessage");

		return mav;
	}

	/**
	 * 服务器端推送消息
	 * 
	 * @return
	 */
	@RequestMapping("/serverSendMessage")
	@ResponseBody
	public Result sendMessage(String message) {
		Result result = new Result();
		try {
			result.setCode("1000");
			result.setMsg("发送消息成功");
			webSocketServer.sendMessage(message);
		} catch (Exception e) {
			e.printStackTrace();
			result.setCode("1001");
			result.setMsg("发送消息失败");
			result.setData(null);
		}
		return result;
	}
}

发送消息页面

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>发送消息页面</title>
</head>
<body>
<form id="sendMessage">
   <input type="text" id="msg" name="message" >
   <input type="button" id="btn" value="发送消息">
</form>
</body>
<script type="text/javascript" src="/static/js/jquery-1.7.2.min.js"></script>
<script type="text/javascript" src="/static/js/layer-v3.1.1/layer/layer.js"></script>
<script type="text/javascript">
$(function(){
	$("#btn").on("click",function(){
	    var param = $("#sendMessage").serialize();
		$.ajax({
            url: "/serverSendMessage",
            type:"POST",
            data:param, 
            success: function(data){
           	 if(data.code==1000){
               	 layer.msg('发送消息成功',{icon:1,time:1000});
                }else if(data.code==1001){
              	     layer.msg('发送失败',{icon:2,time:1000});
                }
            }
        });
	});
}) 

</script>
</html>

接收消息页面

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>接收消息页面</title>
</head>
<body>
<audio src="/static/music/msg.mp3" id="myaudio" controls="controls" loop="false" hidden="true">
</body>
<script type="text/javascript" src="/static/js/jquery-1.7.2.min.js"></script>
<script type="text/javascript" src="/static/js/layer-v3.1.1/layer/layer.js"></script>
<script type="text/javascript">
var websocket=null;
if('WebSocket' in  window){
	websocket=new WebSocket('ws://10.2.91.25:8010/WebSocketServer');
}else{
	 layer.msg('该浏览器不支持websocket',{icon:2,time:1000});
}
websocket.onopen=function(event){
	console.info('建立连接');
}
websocket.onclose=function(event){
	console.info('关闭连接');
}
websocket.onmessage=function(event){
	if(event.data!=null){
		document.getElementById('myaudio').play();
		layer.confirm("您有新的消息请注意查收！", {
		  btn: ['确定','取消']
		}, function(){
			closePlay();
			window.location.href="/receiveMessage";//跳转至未处理消息页面
		},function(){
			closePlay();
		});
	}
	console.info('收到消息'+event.data);
	//弹框提醒，播放音乐
}
websocket.onerror=function(){
	console.info('websocket通讯发生错误！');
}
websocket.onbeforeunload=function(){
	websocket.close();
}
//发送消息
function send() {
    var message = $("#msg").val();
    websocket.send(message);
}
function autoPlay() {
    var myAuto = document.getElementById('myaudio');
    myAuto.play();
}
function closePlay() {
    var myAuto = document.getElementById('myaudio');
    myAuto.pause();
    myAuto.load();
}
</script>
</html>

效果图如下（发送完消息，接收消息页面弹框提示并且带有音乐）：

这里提示一下使用谷歌浏览器测试页面会报receiveMessage:27 Uncaught (in promise) DOMException：

错误原因：Chrome的autoplay政策在2018年4月做了更改。

解决办法：

第一步，在chrome浏览器中输入：chrome://flags/#autoplay-policy

第二步，在Autoplay policy中将Default改为No user gesture is required

第三步，点击下方的“RELAUNCH NOW”,就大功告成了！