基于若依ruoyi-nbcio增加flowable流程待办消息的提醒，并提供右上角的红字数字提醒（六）

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

演示地址：RuoYi-Nbcio后台管理系统

这个部分主要是前端方面的。

1、在Navbar.vue显示右上角的图标栏里增加一项显示消息提醒的组件

<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><el-tooltip content="源码地址" effect="dark" placement="bottom"><ruo-yi-git id="ruoyi-git" class="right-menu-item hover-effect" /></el-tooltip>

2、组件HeaderNotice.vue代码如下：

这里主要先获取系统消息，并进行显示提醒，

其中调用了接口listByUser，

<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 notice1"><div style="margin-left: 5%;width: 50%"><p><a @click="showNotice(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="showNotice(record)" v-if="record.priority === 'L'" color="blue">一般消息</a-tag><a-tag @click="showNotice(record)" v-if="record.priority === 'M'" color="orange">重要消息</a-tag><a-tag @click="showNotice(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="toMyNotice()" 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 notice2"><div style="margin-left: 5%;width: 50%"><p><a @click="showNotice(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="showNotice(record)" v-if="record.priority === 'L'" color="blue">一般消息</a-tag><a-tag @click="showNotice(record)" v-if="record.priority === 'M'" color="orange">重要消息</a-tag><a-tag @click="showNotice(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="toMyNotice()" 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 notice3"><div style="margin-left: 5%;width: 50%"><p><a @click="showNotice(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="showNotice(record)" v-if="record.priority === 'L'" color="blue">一般消息</a-tag><a-tag @click="showNotice(record)" v-if="record.priority === 'M'" color="orange">重要消息</a-tag><a-tag @click="showNotice(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="toMyNotice()" 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-notice ref="ShowNotice" @ok="modalFormOk"></show-notice><dynamic-notice ref="showDynamNotice" :path="openPath" :formData="formData" /></a-popover></div>
</template><script>import ShowNotice from './ShowNotice'import store from '@/store/'import DynamicNotice from './DynamicNotice'import { listByUser } from "@/api/system/notice";export default {name: "HeaderNotice",components: {DynamicNotice,ShowNotice,},data() {return {loadding: false,url: {listNoticeByUser: "/system/notice/listByUser",editNoticeSend: "/system/notice/editByAnntIdAndUserId",queryById: "/system/notice/queryById",},hovered: false,notice1: [],notice2: [],notice3: [],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listByUser().then((res) => {console.log("listByUser res",res);if (res.code == 200) {this.notice1 = res.data.anntMsgList;this.msg1Count = res.data.anntMsgTotal;this.msg1Title = "通知(" + res.data.anntMsgTotal + ")";this.notice2 = res.data.sysMsgList;this.msg2Count = res.data.sysMsgTotal;this.msg2Title = "系统消息(" + res.data.sysMsgTotal + ")";this.notice3 = res.data.todealMsgList;this.msg3Count = res.data.todealMsgTotal;this.msg3Title = "待办消息(" + res.data.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)},showNotice(record) {putAction(this.url.editNoticeSend, {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.ShowNotice.detail(record);}},toMyNotice() {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.showNotice(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>

3、效果图如下：