页面路由跳转返回后数据回显，记住原先的状态

src/views/home/electricityCostAnalysis/electricityCostAnalysis.vue

@@ -40,6 +40,7 @@ import operatingLineChart from "../electricityCostAnalysisComponents/operatingLi
 import operatingLineChartCumulative from "../electricityCostAnalysisComponents/operatingLineChartCumulative.vue";
 
 import { getElectricityCostAnalysisData } from '@/api/cockpit'
+import { consumeNavigationState, clearNavigation } from '@/utils/navigationReturnState';
 export default {
   name: "electricityCostAnalysis",
   components: {
@@ -117,6 +118,10 @@ export default {
     this.destroy();
   },
   mounted() {
+    // 菜单入口时清空导航栈
+    if (this.$route.query.menu === '1') {
+      clearNavigation();
+    }
     const _this = this;
     _this.beilv = document.documentElement.clientWidth / 1920;
     window.onresize = () => {
@@ -125,7 +130,25 @@ export default {
         this.beilv = _this.clientWidth / 1920;
       })();
     };
-    this.dateData = this.$route.query.dateData ? this.$route.query.dateData : undefined
+    // 从 sessionStorage 获取本页面保存的状态
+    const currentPath = this.$route.path;
+    const saved = consumeNavigationState(currentPath);
+    if (saved && saved.dateData && saved.dateData.startTime != null && saved.dateData.endTime != null) {
+      this.dateData = {
+        startTime: saved.dateData.startTime,
+        endTime: saved.dateData.endTime
+      };
+    } else if (this.$route.query.startTime && this.$route.query.endTime) {
+      this.dateData = {
+        startTime: Number(this.$route.query.startTime),
+        endTime: Number(this.$route.query.endTime)
+      };
+    }
+    this.$nextTick(() => {
+      if (this.dateData && this.dateData.startTime != null && this.dateData.endTime != null) {
+        this.getData();
+      }
+    });
   },
   methods: {
     getData() {