UiHeader.vue
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<template>
<div id="UiHeader">
<el-menu router :default-active="this.$route.path" background-color="#545c64" text-color="#fff" active-text-color="#ffd04b" mode="horizontal">
<el-menu-item index="/">控制台</el-menu-item>
<el-menu-item index="/deviceList">设备列表</el-menu-item>
<el-menu-item index="/pushVideoList">推流列表</el-menu-item>
<el-menu-item index="/streamProxyList">拉流代理</el-menu-item>
<el-menu-item index="/parentPlatformList/15/1">国标级联</el-menu-item>
<el-switch v-model="alarmNotify" active-text="报警信息推送" style="display: block float: right" @change="sseControl"></el-switch>
<el-menu-item style="float: right;" @click="loginout">退出</el-menu-item>
</el-menu>
</div>
</template>
<script>
export default {
name: "UiHeader",
components: { Notification },
data() {
return {
alarmNotify: true,
sseSource: null,
};
},
methods:{
loginout(){
// 删除cookie，回到登录页面
this.$cookies.remove("session");
this.$router.push('/login');
this.sseSource.close();
},
beforeunloadHandler() {
this.sseSource.close();
},
sseControl() {
let that = this;
if (this.alarmNotify) {
console.log("申请SSE推送API调用，浏览器ID: " + this.$browserId);
this.sseSource = new EventSource('/api/emit?browserId=' + this.$browserId);
this.sseSource.addEventListener('message', function(evt) {
that.$notify({
title: '收到报警信息',
dangerouslyUseHTMLString: true,
message: evt.data,
type: 'warning'
});
console.log("收到信息：" + evt.data);
});
this.sseSource.addEventListener('open', function(e) {
console.log("SSE连接打开.");
}, false);
this.sseSource.addEventListener('error', function(e) {
if (e.target.readyState == EventSource.CLOSED) {
console.log("SSE连接关闭");
} else {
console.log(e.target.readyState);
}
}, false);
} else {
this.sseSource.removeEventListener('open', null);
this.sseSource.removeEventListener('message', null);
this.sseSource.removeEventListener('error', null);
this.sseSource.close();
}
}
},
mounted() {
window.addEventListener('beforeunload', e => this.beforeunloadHandler(e))
// window.addEventListener('unload', e => this.unloadHandler(e))
this.sseControl();
},
destroyed() {
window.removeEventListener('beforeunload', e => this.beforeunloadHandler(e))
this.sseSource.removeEventListener('open', null);
this.sseSource.removeEventListener('message', null);
this.sseSource.removeEventListener('error', null);
this.sseSource.close();
// window.removeEventListener('unload', e => this.unloadHandler(e))
},
}
</script>