fix:避免新开页面的时候重新登录

src/router/index.js

@@ -75,7 +75,7 @@ const router = createRouter({
 
 // 路由守卫 - 设置页面标题
 router.beforeEach((to, from, next) => {
-  // 登录态仅保存在运行时内存：刷新/重启后都需重新登录
+  // 登录态：同一次前端服务 BOOT_ID 内跨刷新/跨新标签有效；服务重启后自动失效
   const isAuthed = getIsLoggedIn();
 
   const isLoginRoute = to.name === "Login" || /^\/login\/?$/.test(String(to.path || ""));

src/utils/auth.js

-let isLoggedIn = false;
+const STORAGE_LOGIN_FLAG = "isLoggedIn";
+const STORAGE_LOGIN_BOOT_ID = "loginBootId";
 
-export const getIsLoggedIn = () => isLoggedIn;
+const getBootId = () => {
+	// 由 vite.config.js 的 define 注入：重启 dev server 会变化
+	try {
+		// eslint-disable-next-line no-undef
+		return String(__APP_BOOT_ID__ || "");
+	} catch (_) {
+		return "";
+	}
+};
+
+export const getIsLoggedIn = () => {
+	try {
+		const flag = window.localStorage.getItem(STORAGE_LOGIN_FLAG) === "1";
+		const savedBootId = window.localStorage.getItem(STORAGE_LOGIN_BOOT_ID) || "";
+		return flag && savedBootId && savedBootId === getBootId();
+	} catch (_) {
+		return false;
+	}
+};
 
 export const setIsLoggedIn = (val) => {
-	isLoggedIn = Boolean(val);
+	try {
+		if (val) {
+			window.localStorage.setItem(STORAGE_LOGIN_FLAG, "1");
+			window.localStorage.setItem(STORAGE_LOGIN_BOOT_ID, getBootId());
+		} else {
+			window.localStorage.removeItem(STORAGE_LOGIN_FLAG);
+			window.localStorage.removeItem(STORAGE_LOGIN_BOOT_ID);
+		}
+	} catch (_) {
+		// ignore
+	}
 };
 
+

vite.config.js

@@ -6,6 +6,10 @@ import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
 import { resolve } from 'path'
 
 export default defineConfig({
+  // 每次重启前端服务（Vite）都会变化：用于登录态失效判断
+  define: {
+    __APP_BOOT_ID__: JSON.stringify(`${Date.now()}`),
+  },
   plugins: [
     vue(),
     AutoImport({