更多ruoyi-nbcio功能请看演示系统
gitee源代码地址
前后端代码： https://gitee.com/nbacheng/ruoyi-nbcio
为了后面流程发起等消息推送，所以需要集成websocket。
1、后端增加websoket支持
首先在framework模块里的pom.xml增加websocket
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-websocket</artifactId></dependency>2、增加websocket配置
package com.ruoyi.framework.config;import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.socket.server.standard.ServerEndpointExporter;/*** 开启WebSocket支持*/
@Configuration
public class WebSocketConfig {@Beanpublic ServerEndpointExporter serverEndpointExporter() {return new ServerEndpointExporter();}
}3、增加websocket服务，当然这部分后面还要修改
package com.ruoyi.framework.websocket;import cn.hutool.json.JSONUtil;
import com.ruoyi.common.core.domain.BaseProtocol;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;import javax.websocket.*;
import javax.websocket.server.PathParam;
import javax.websocket.server.ServerEndpoint;
import java.io.IOException;
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.concurrent.atomic.AtomicInteger;// @ServerEndpoint 声明并创建了webSocket端点, 并且指明了请求路径
// id 为客户端请求时携带的参数, 用于服务端区分客户端使用/*** @ServerEndpoint 声明并创建了websocket端点, 并且指明了请求路径* uid 为客户端请求时携带的用户id, 用于区分发给哪个用户的消息* @author nbacheng* @date 2023-09-20
*/@ServerEndpoint("/websocket/{uid}")
@Component
public class WebSocketServer {// 日志对象private static final Logger log = LoggerFactory.getLogger(WebSocketServer.class);// 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。//千万不要用++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。private static CopyOnWriteArraySet<WebSocketServer> webSocketSet = new CopyOnWriteArraySet<>();// private static ConcurrentHashMap<String,WebSocketServer> websocketList = new ConcurrentHashMap<>();// 与某个客户端的连接会话，需要通过它来给客户端发送数据private Session session;// 接收uidprivate String uid = "";/** 客户端创建连接时触发* */@OnOpenpublic void onOpen(Session session, @PathParam("uid") String uid) {this.session = session;webSocketSet.add(this); // 加入set中addOnlineCount(); // 在线数加1log.info("有新窗口开始监听:" + uid + ", 当前在线人数为" + getOnlineCount());this.uid = uid;try {sendMessage("连接成功");} catch (IOException e) {log.error("websocket IO异常");}}/*** 客户端连接关闭时触发**/@OnClosepublic void onClose() {webSocketSet.remove(this); // 从set中删除subOnlineCount(); // 在线数减1log.info("有一连接关闭！当前在线人数为" + getOnlineCount());}/*** 接收到客户端消息时触发*/@OnMessagepublic void onMessage(String message, Session session) {log.info("收到来自窗口" + uid + "的信息:" + message);// 群发消息for (WebSocketServer item : webSocketSet) {try {item.sendMessage(message);} catch (IOException e) {e.printStackTrace();}}}/*** 连接发生异常时候触发*/@OnErrorpublic void onError(Session session, Throwable error) {log.error("发生错误");error.printStackTrace();}/*** 实现服务器主动推送(向浏览器发消息)*/public void sendMessage(String message) throws IOException {log.info("服务器消息推送："+message);this.session.getAsyncRemote().sendText(message);}/*** 发送消息到所有客户端* 指定uid则向指定客户端发消息* 不指定uid则向所有客户端发送消息* */public static void sendInfo(String message, @PathParam("uid") String uid) throws IOException {log.info("推送消息到窗口" + uid + "，推送内容:" + message);for (WebSocketServer item : webSocketSet) {try {// 这里可以设定只推送给这个sid的，为null则全部推送if (uid == null) {item.sendMessage(message);} else if (item.uid.equals(uid)) {item.sendMessage(message);}} catch (IOException e) {continue;}}}/*** * 给多个指定uid客户端发消息* * */public static void sendInfo(String message, @PathParam("uids") String[] uids ) throws IOException {log.info("推送消息到窗口" + uids + "，推送内容:" + message);for (String uid : uids) {sendInfo(message,uid);}}/*** 发送消息到所有客户端* 指定uid则向指定客户端发消息* 不指定uid则向所有客户端发送消息* */public static void sendInfo(BaseProtocol message, @PathParam("uid") String uid) throws IOException {log.info("推送消息到窗口" + uid + "，推送内容:" + message);for (WebSocketServer item : webSocketSet) {try {// 这里可以设定只推送给这个sid的，为null则全部推送if (uid == null) {item.sendMessage(JSONUtil.toJsonStr(message));} else if (item.uid.equals(uid)) {item.sendMessage(JSONUtil.toJsonStr(message));}} catch (IOException e) {continue;}}}public static synchronized int getOnlineCount() {return onlineCount.get();}public static synchronized void addOnlineCount() {WebSocketServer.onlineCount.incrementAndGet();}public static synchronized void subOnlineCount() {WebSocketServer.onlineCount.decrementAndGet();}public static CopyOnWriteArraySet<WebSocketServer> getWebSocketSet() {return webSocketSet;}}4、在导航条里增加一个消息
<el-tooltip content="消息" effect="dark" placement="bottom"><!--<message id="message" class="right-menu-item hover-effect" /> --><header-notice id="message" class="right-menu-item-message hover-effect" /></el-tooltip>界面就是
同时为了样式问题增加下面样式
right-menu-item-message {display: inline-block;padding: 0 8px;height: 100%;font-size: 18px;color: #5a5e66;vertical-align: text-bottom;width: 36px;&.hover-effect {cursor: pointer;transition: background .3s;&:hover {background: rgba(0, 0, 0, .025)}}}5、增加HeaderNotice 组件，当然现在是测试，只作为websocket消息测试用，后续正式还需要修改。
<template><div><a-popover trigger="click" placement="bottomRight" :autoAdjustOverflow="true" :arrowPointAtCenter="true"overlayClassName="header-notice-wrapper" @visibleChange="handleHoverChange":overlayStyle="{ width: '400px', top: '50px' }"><template slot="content"><a-spin :spinning="loadding"><a-tabs><a-tab-pane :tab="msg1Title" key="1"><a-list><a-list-item :key="index" v-for="(record, index) in announcement1"><div style="margin-left: 5%;width: 50%"><p><a @click="showAnnouncement(record)">{{ record.titile }}</a></p><p style="color: rgba(0,0,0,.45);margin-bottom: 0px">{{ record.createTime }} 发布</p></div><div style="text-align: right"><a-tag @click="showAnnouncement(record)" v-if="record.priority === 'L'" color="blue">一般消息</a-tag><a-tag @click="showAnnouncement(record)" v-if="record.priority === 'M'" color="orange">重要消息</a-tag><a-tag @click="showAnnouncement(record)" v-if="record.priority === 'H'" color="red">紧急消息</a-tag></div></a-list-item><div style="margin-top: 5px;text-align: center"><a-button @click="toMyAnnouncement()" type="dashed" block>查看更多</a-button></div></a-list></a-tab-pane><a-tab-pane :tab="msg2Title" key="2"><a-list><a-list-item :key="index" v-for="(record, index) in announcement2"><div style="margin-left: 5%;width: 50%"><p><a @click="showAnnouncement(record)">{{ record.titile }}</a></p><p style="color: rgba(0,0,0,.45);margin-bottom: 0px">{{ record.createTime }} 发布</p></div><div style="text-align: right"><a-tag @click="showAnnouncement(record)" v-if="record.priority === 'L'" color="blue">一般消息</a-tag><a-tag @click="showAnnouncement(record)" v-if="record.priority === 'M'" color="orange">重要消息</a-tag><a-tag @click="showAnnouncement(record)" v-if="record.priority === 'H'" color="red">紧急消息</a-tag></div></a-list-item><div style="margin-top: 5px;text-align: center"><a-button @click="toMyAnnouncement()" type="dashed" block>查看更多</a-button></div></a-list></a-tab-pane><a-tab-pane :tab="msg3Title" key="3"><a-list><a-list-item :key="index" v-for="(record, index) in announcement3"><div style="margin-left: 5%;width: 50%"><p><a @click="showAnnouncement(record)">{{ record.titile }}</a></p><p style="color: rgba(0,0,0,.45);margin-bottom: 0px">{{ record.createTime }} 发布</p></div><div style="text-align: right"><a-tag @click="showAnnouncement(record)" v-if="record.priority === 'L'" color="blue">一般消息</a-tag><a-tag @click="showAnnouncement(record)" v-if="record.priority === 'M'" color="orange">重要消息</a-tag><a-tag @click="showAnnouncement(record)" v-if="record.priority === 'H'" color="red">紧急消息</a-tag></div></a-list-item><div style="margin-top: 5px;text-align: center"><a-button @click="toMyAnnouncement()" type="dashed" block>查看更多</a-button></div></a-list></a-tab-pane></a-tabs></a-spin></template><span @click="fetchNotice" class="header-notice"><a-badge :count="msgTotal"><a-icon style="font-size: 16px; padding: 4px" type="bell" /></a-badge></span><show-announcement ref="ShowAnnouncement" @ok="modalFormOk"></show-announcement><dynamic-notice ref="showDynamNotice" :path="openPath" :formData="formData" /></a-popover></div>
</template><script>import ShowAnnouncement from './ShowAnnouncement'import store from '@/store/'import DynamicNotice from './DynamicNotice'export default {name: "HeaderNotice",components: {DynamicNotice,ShowAnnouncement,},data() {return {loadding: false,url: {listCementByUser: "/sys/annountCement/listByUser",editCementSend: "/sys/sysAnnouncementSend/editByAnntIdAndUserId",queryById: "/sys/annountCement/queryById",},hovered: false,announcement1: [],announcement2: [],announcement3: [],msg1Count: "0",msg2Count: "0",msg3Count: "0",msg1Title: "通知(0)",msg2Title: "",msg3Title: "",stopTimer: false,websock: null,lockReconnect: false,heartCheck: null,formData: {},openPath: ''}},computed: {msgTotal() {return parseInt(this.msg1Count) + parseInt(this.msg2Count) + parseInt(this.msg3Count);}},mounted() {//this.loadData();//this.timerFun();this.initWebSocket();// this.heartCheckFun();},destroyed: function() { // 离开页面生命周期函数this.websocketOnclose();},methods: {timerFun() {this.stopTimer = false;let myTimer = setInterval(() => {// 停止定时器if (this.stopTimer == true) {clearInterval(myTimer);return;}this.loadData()}, 6000)},loadData() {try {// 获取系统消息getAction(this.url.listCementByUser).then((res) => {if (res.success) {this.announcement1 = res.result.anntMsgList;this.msg1Count = res.result.anntMsgTotal;this.msg1Title = "通知(" + res.result.anntMsgTotal + ")";this.announcement2 = res.result.sysMsgList;this.msg2Count = res.result.sysMsgTotal;this.msg2Title = "系统消息(" + res.result.sysMsgTotal + ")";this.announcement3 = res.result.todealMsgList;this.msg3Count = res.result.todealMsgTotal;this.msg3Title = "待办消息(" + res.result.todealMsgTotal + ")";}}).catch(error => {console.log("系统消息通知异常", error); //这行打印permissionName is undefinedthis.stopTimer = true;console.log("清理timer");});} catch (err) {this.stopTimer = true;console.log("通知异常", err);}},fetchNotice() {if (this.loadding) {this.loadding = falsereturn}this.loadding = truesetTimeout(() => {this.loadding = false}, 200)},showAnnouncement(record) {putAction(this.url.editCementSend, {anntId: record.id}).then((res) => {if (res.success) {this.loadData();}});this.hovered = false;if (record.openType === 'component') {this.openPath = record.openPage;this.formData = {id: record.busId};this.$refs.showDynamNotice.detail(record.openPage);} else {this.$refs.ShowAnnouncement.detail(record);}},toMyAnnouncement() {this.$router.push({path: '/isps/userAnnouncement'});},modalFormOk() {},handleHoverChange(visible) {this.hovered = visible;},initWebSocket: function() {// WebSocket与普通的请求所用协议有所不同，ws等同于http，wss等同于httpsvar uid = store.getters.name;var url = process.env.VUE_APP_WS_API + "/websocket/" + uid;console.log("url=",url);this.websock = new WebSocket(url);this.websock.onopen = this.websocketOnopen;this.websock.onerror = this.websocketOnerror;this.websock.onmessage = this.websocketOnmessage;this.websock.onclose = this.websocketOnclose;},websocketOnopen: function() {console.log("WebSocket连接成功");//心跳检测重置//this.heartCheck.reset().start();},websocketOnerror: function(e) {console.log("WebSocket连接发生错误");this.reconnect();},websocketOnmessage: function(e) {console.log("-----接收消息-------", e);console.log("-----接收消息-------", e.data);var data = eval("(" + e.data + ")"); //解析对象if (data.cmd == "topic") {//系统通知//this.loadData();this.$notification.open({ //websocket消息通知弹出message: 'websocket消息通知',description: data.msgTxt,style: {width: '600px',marginLeft: `${335 - 600}px`,},});} else if (data.cmd == "user") {//用户消息//this.loadData();this.$notification.open({message: 'websocket消息通知',description: data.msgTxt,style: {width: '600px',marginLeft: `${335 - 600}px`,},});}//心跳检测重置//this.heartCheck.reset().start();},websocketOnclose: function(e) {console.log("connection closed (" + e + ")");if (e) {console.log("connection closed (" + e.code + ")");}this.reconnect();},websocketSend(text) { // 数据发送try {this.websock.send(text);} catch (err) {console.log("send failed (" + err.code + ")");}},openNotification(data) {var text = data.msgTxt;const key = `open${Date.now()}`;this.$notification.open({message: '消息提醒',placement: 'bottomRight',description: text,key,btn: (h) => {return h('a-button', {props: {type: 'primary',size: 'small',},on: {click: () => this.showDetail(key, data)}}, '查看详情')},});},reconnect() {var that = this;if (that.lockReconnect) return;that.lockReconnect = true;//没连接上会一直重连，设置延迟避免请求过多setTimeout(function() {console.info("尝试重连...");that.initWebSocket();that.lockReconnect = false;}, 5000);},heartCheckFun() {var that = this;//心跳检测,每20s心跳一次that.heartCheck = {timeout: 20000,timeoutObj: null,serverTimeoutObj: null,reset: function() {clearTimeout(this.timeoutObj);//clearTimeout(this.serverTimeoutObj);return this;},start: function() {var self = this;this.timeoutObj = setTimeout(function() {//这里发送一个心跳，后端收到后，返回一个心跳消息，//onmessage拿到返回的心跳就说明连接正常that.websocketSend("HeartBeat");console.info("客户端发送心跳");//self.serverTimeoutObj = setTimeout(function(){//如果超过一定时间还没重置，说明后端主动断开了// that.websock.close();//如果onclose会执行reconnect，我们执行ws.close()就行了.如果直接执行reconnect 会触发onclose导致重连两次//}, self.timeout)}, this.timeout)}}},showDetail(key, data) {this.$notification.close(key);var id = data.msgId;getAction(this.url.queryById, {id: id}).then((res) => {if (res.success) {var record = res.result;this.showAnnouncement(record);}})},}}
</script><style lang="css">.header-notice-wrapper {top: 50px !important;}
</style>
<style lang="less" scoped>.header-notice {display: inline-block;transition: all 0.3s;span {vertical-align: initial;}}
</style>6、增加websocket测试页面，以便测试，地址根据自己需要进行填写
<template><div><el-input v-model="url" type="text" style="width: 100%" /> <br /><el-button @click="join" type="primary">连接</el-button><el-button @click="exit" type="danger">断开</el-button><br /><el-input type="textarea" v-model="message" :rows="9" /><el-button type="info" @click="send">发送消息</el-button><br /><br /><el-input type="textarea" v-model="text_content" :rows="9" /> 返回内容<br /><br /></div>
</template><script>
export default {data() {return {url: "ws://127.0.0.1:9060/websocket/ry",message: "",text_content: "",ws: null,};},methods: {join() {const wsuri = this.url;this.ws = new WebSocket(wsuri);const self = this;this.ws.onopen = function (event) {self.text_content = self.text_content + "已经打开连接!" + "\n";};this.ws.onmessage = function (event) {self.text_content = event.data + "\n";};this.ws.onclose = function (event) {self.text_content = self.text_content + "已经关闭连接!" + "\n";};},exit() {if (this.ws) {this.ws.close();this.ws = null;}},send() {if (this.ws) {const messageData = {msgTxt: this.message,cmd: 'user'}let strdata = JSON.stringify(messageData);console.log("strdata",JSON.stringify(messageData));this.ws.send(strdata);//this.ws.send(this.message);} else {alert("未连接到服务器");}},},
};
</script>7、实际效果图
