pom引用
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
WebSocket 类
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.thymeleaf.util.MapUtils;
import javax.websocket.*;
import javax.websocket.server.PathParam;
import javax.websocket.server.ServerEndpoint;
import java.io.IOException;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
/**
* @Auther: shigc
* @Date: 2018/12/15 11:53
* @Description: websocket
*/
@Slf4j
@ServerEndpoint("/websocket/{sid}/{type}")
@Component
public class WebSocket {
/**
* 静态变量,用来记录当前在线连接数。线程安全。
*/
private static AtomicInteger onlineCount = new AtomicInteger(0);
/**
* concurrent包的线程安全Set,用来存放每个客户端对应的MyWebSocket对象。
*/
//用户与客服绑定
public static Map<String, String> electricSocketCust = new ConcurrentHashMap<>();
//缓存用户信息
public static Map<String, Session> userMap = new ConcurrentHashMap<>();
//空闲客服
public static Map<String, Session> idlekfMap = new ConcurrentHashMap<>();
//所有信息
public static Map<String, Session> allMap = new ConcurrentHashMap<>();
public static Map<String, Session> haveRead = new ConcurrentHashMap<>();
public static Boolean haveReadf = false;
/**
* 接收sid
*/
private String sid = "";
private String type = "";
/**
* 连接建立成功调用的方法
*/
@OnOpen
public void onOpen(Session session, @PathParam("sid") String sid, @PathParam("type") String type) throws IOException {
this.sid = sid;
this.type = type;
//缓存信息
this.identity(type, sid, session);
// 在线数加1
addOnlineCount();
log.info("有新窗口开始监听:" + sid + ",当前在线人数为" + getOnlineCount());
//匹配客服并发送信息
match(type, sid);
//匹配全员通知
if (haveReadf && !haveRead.containsKey(sid)) {
Session session23 = allMap.get(sid);
if (session23 != null) {
session23.getBasicRemote().sendText("全员通知");
}
}
}
/**
* 连接关闭调用的方法
*/
@OnClose
public void onClose() {
//绑定删除
String str = electricSocketCust.get(sid);
if (!StringUtils.isEmpty(str)) {
electricSocketCust.remove(str);
}
//是否是用户关闭链接
if (userMap.containsKey(sid) && !StringUtils.isEmpty(str)) {
//客服加入空闲
idlekfMap.put(str, allMap.get(str));
}
allMap.remove(sid);
idlekfMap.remove(sid);
userMap.remove(sid);
electricSocketCust.remove(sid);
//在线数减1
subOnlineCount();
log.info("有一连接关闭!当前在线人数为" + getOnlineCount());
}
/**
* 收到客户端消息后调用的方法
*
* @param message 客户端发送过来的消息
*/
@OnMessage
public void onMessage(String message, Session session) throws IOException {
log.info("收到来自窗口" + sid + "的信息:" + message);
//消息
String ssid = electricSocketCust.get(sid);
if (StringUtils.isEmpty(ssid)) {
match(type, sid);
}
ssid = electricSocketCust.get(sid);
if (StringUtils.isEmpty(ssid)) {
session.getBasicRemote().sendText(message);
} else {
Session sessionss = allMap.get(ssid);
sessionss.getBasicRemote().sendText(message);
session.getBasicRemote().sendText(message);
}
}
/**
* @param session
* @param error
*/
@OnError
public void onError(Session session, Throwable error) {
log.error("发生错误");
error.printStackTrace();
}
/**
* 给指定用户发消息
* message 消息
* sid 发送着sid
*/
public void sendInfo(String message, String sid) throws IOException {
log.info("推送消息到窗口" + sid + ",推送内容:" + message);
Session session = allMap.get(sid);
if (session != null) {
session.getBasicRemote().sendText(message);
}
String s = electricSocketCust.get(sid);
if (!StringUtils.isEmpty(s)) {
Session session1 = allMap.get(s);
session1.getBasicRemote().sendText(message);
}
}
/**
* 后台给指定发消息(忠告)
* message 消息
* sid 发送着sid
*/
public void closeAll() {
//为空就是全员
}
/**
* 后台给指定发消息(忠告)
* message 消息
* sid 发送着sid
*/
public void sendInfoAdmin(String message, String sid) throws IOException {
//为空就是全员
log.info("推送消息到窗口" + sid + ",推送内容:" + message);
if ("0".equals(sid)) {
if (!MapUtils.isEmpty(userMap)) {
for (String sids : userMap.keySet()) {
Session session = userMap.get(sids);
session.getBasicRemote().sendText(message);
haveRead.put(sids, session);
haveReadf = true;
}
}
} else {
Session session = allMap.get(sid);
if (session != null) {
session.getBasicRemote().sendText(message);
}
}
}
public static int getOnlineCount() {
return onlineCount.get();
}
public static void addOnlineCount() {
WebSocket.onlineCount.addAndGet(1);
}
public static void subOnlineCount() {
WebSocket.onlineCount.decrementAndGet();
}
/**
* 保存链接信息
*
* @param identity, sid, session
* @author X-MD
* @date 2020/9/10 0010
**/
private void identity(String identity, String sid, Session session) {
allMap.put(sid, session);
if ("cust".equals(identity)) {
idlekfMap.put(sid, session);
}
if ("user".equals(identity)) {
userMap.put(sid, session);
}
}
private void match(String identity, String sid) throws IOException {
if ("user".equals(identity)) {
//有客服在线
if (!MapUtils.isEmpty(idlekfMap)) {
//客服sid
String custSid = null;
for (String keys : idlekfMap.keySet()) {
custSid = keys;
}
//绑定关系
electricSocketCust.put(sid, custSid);
electricSocketCust.put(custSid, sid);
idlekfMap.remove(custSid);
//发送消息
String ssad = "你好,我是" + Bcabn.findByKey(custSid) + "很高兴为你服务";
sendInfo(ssad, sid);
}
}
}
}
WebSocketConfig
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.socket.server.standard.ServerEndpointExporter;
/**
* @author X-MD
* @Date 2020/9/9 0009
* @description:
**/
@Configuration
public class WebSocketConfig {
@Bean
public ServerEndpointExporter serverEndpointExporter (){
return new ServerEndpointExporter();
}
}
Bcabn 枚举类
public enum Bcabn {
ONE("1", "马云"),
TWO("2", "马化腾"),
THEW("3", "刘强东"),
FOUR("4", "李彦宏");
/**
* 队列名称
*/
public String key;
/**
* 路由键
*/
public String value;
Bcabn(String key, String value) {
this.key = key;
this.value = value;
}
public static String findByKey(String key) {
String s = null;
for (Bcabn bcabn : values()) {
if (bcabn.getKey().equals(key)) {
s = bcabn.getValue();
}
}
return s;
}
private String getKey() {
return this.key;
}
private String getValue() {
return this.value;
}
}
WebSocketController
@RestController
@RequestMapping("/webSocket")
public class WebSocketController {
@Autowired
WebSocket webSocket;
@GetMapping("/server/push/{sid}")
public void push(@PathVariable("sid") Integer sid) throws IOException {
webSocket.sendInfoAdmin("注意啦! -> ", String.valueOf(sid));
}
@GetMapping("/server/closeall")
public void closeAll() {
webSocket.closeAll();
}
}
启动类
@SpringBootApplication
@EnableWebSocket
public class WebsocketserviceApplication {
public static void main(String[] args) {
SpringApplication.run(WebsocketserviceApplication.class, args);
}
}
html1 (用户)
<html>
<head>
<meta charset="UTF-8"></meta>
<title>springboot项目WebSocket测试demo</title>
</head>
<body>
<h3>springboot项目websocket测试demo</h3>
<h4>测试说明</h4>
<h5>文本框中数据数据,点击‘发送测试’,文本框中的数据会发送到后台websocket,后台接受到之后,会再推送数据到前端,展示在下方;点击关闭连接,可以关闭该websocket;可以跟踪代码,了解具体的流程;代码上有详细注解</h5>
<br/>
<input id="text" type="text"/>
<button onclick="send()">发送测试</button>
<hr/>
<button onclick="clos()">关闭连接</button>
<hr/>
<div id="message"></div>
<script>
var websocket = null;
if ('WebSocket' in window) {
websocket = new WebSocket("ws://127.0.0.1:8888/websocket/1/user");
} else {
alert("您的浏览器不支持websocket");
}
websocket.onerror = function () {
setMessageInHtml("send error!");
}
websocket.onopen = function () {
setMessageInHtml("connection success!")
}
websocket.onmessage = function (event) {
setMessageInHtml(event.data);
}
websocket.onclose = function () {
setMessageInHtml("closed websocket!")
}
window.onbeforeunload = function () {
clos();
}
function setMessageInHtml(message) {
document.getElementById('message').innerHTML += message+"</br>";
}
function clos() {
websocket.close(3000, "强制关闭");
}
function send() {
var msg2 = document.getElementById('text').value;
websocket.send(msg2);
}
</script>
</body>
</html>
html2(客服)
<html>
<head>
<meta charset="UTF-8"></meta>
<title>springboot项目WebSocket测试demo</title>
</head>
<body>
<h3>springboot项目websocket测试demo</h3>
<h4>测试说明</h4>
<h5>文本框中数据数据,点击‘发送测试’,文本框中的数据会发送到后台websocket,后台接受到之后,会再推送数据到前端,展示在下方;点击关闭连接,可以关闭该websocket;可以跟踪代码,了解具体的流程;代码上有详细注解</h5>
<br/>
<input id="text" type="text"/>
<button onclick="send()">发送测试</button>
<hr/>
<button onclick="clos()">关闭连接</button>
<hr/>
<div id="message"></div>
<script>
var websocket = null;
if ('WebSocket' in window) {
websocket = new WebSocket("ws://127.0.0.1:8888/websocket/2/cust");
} else {
alert("您的浏览器不支持websocket");
}
websocket.onerror = function () {
setMessageInHtml("send error!");
}
websocket.onopen = function () {
setMessageInHtml("connection success!")
}
websocket.onmessage = function (event) {
setMessageInHtml(event.data);
}
websocket.onclose = function () {
setMessageInHtml("closed websocket!")
}
window.onbeforeunload = function () {
clos();
}
function setMessageInHtml(message) {
document.getElementById('message').innerHTML += message + "</br>";
}
function clos() {
websocket.close(3000, "强制关闭");
}
function send() {
var msg2 = document.getElementById('text').value;
websocket.send(msg2);
}
</script>
</body>
</html>