fix: deduplicate expired token handling

src/utils/request.js

@@ -46,6 +46,22 @@ const isTokenExpiringSoon = () => {
 let isRefreshing = false
 // 等待刷新token的请求队列
 let refreshSubscribers = []
+let authRedirecting = false
+
+const clearAuthAndRedirect = (message = '登录过期，请重新登录') => {
+  localStorage.removeItem(TOKEN_KEY)
+  localStorage.removeItem(TOKEN_EXPIRE_KEY)
+  localStorage.removeItem(USER_INFO_KEY)
+  onTokenRefreshed(null)
+  if (authRedirecting) return
+  authRedirecting = true
+  ElMessage.closeAll()
+  ElMessage.warning(message)
+  if (router.currentRoute.value.path !== '/login') router.replace('/login')
+}
+
+// 鉴权失效后终止原页面请求链，避免并发请求进入各页面 catch 后重复弹错。
+const stopExpiredRequest = () => new Promise(() => {})
 
 // 添加请求到队列
 const subscribeTokenRefresh = (callback) => {
@@ -83,20 +99,12 @@ const doRefreshToken = async () => {
       }
     }
     // 刷新失败，触发登出逻辑
-    localStorage.removeItem(TOKEN_KEY)
-    localStorage.removeItem(TOKEN_EXPIRE_KEY)
-    localStorage.removeItem(USER_INFO_KEY)
-    ElMessage.warning('登录过期，请重新登录')
-    router.push('/login')
+    clearAuthAndRedirect()
     return null
   } catch (error) {
     console.error('Token刷新失败:', error)
     // 刷新失败，触发登出逻辑
-    localStorage.removeItem(TOKEN_KEY)
-    localStorage.removeItem(TOKEN_EXPIRE_KEY)
-    localStorage.removeItem(USER_INFO_KEY)
-    ElMessage.warning('登录过期，请重新登录')
-    router.push('/login')
+    clearAuthAndRedirect()
     return null
   }
 }
@@ -122,6 +130,10 @@ class Request {
                 return config
             },
             (error) => {
+                if (error.response?.status === 401) {
+                    clearAuthAndRedirect()
+                    return stopExpiredRequest()
+                }
                 return Promise.reject(error)
             }
         )
@@ -206,14 +218,8 @@ http2.interceptors.request.use(async config => {
     if (urlNeedAuth(config.url)) {
         // 检查token是否已过期
         if (isTokenExpired()) {
-            if (token) {
-                localStorage.removeItem(TOKEN_KEY)
-                localStorage.removeItem(TOKEN_EXPIRE_KEY)
-                localStorage.removeItem(USER_INFO_KEY)
-                ElMessage.warning('登录过期，请重新登录')
-            }
-            router.push('/login')
-            return Promise.reject(new Error('Token已过期'))
+            clearAuthAndRedirect(token ? '登录过期，请重新登录' : '请先登录')
+            return stopExpiredRequest()
         }
         
         // 检查token是否即将过期，进行无感刷新
@@ -251,6 +257,7 @@ http2.interceptors.request.use(async config => {
             })
         } else {
             // 正常情况，直接使用token
+            authRedirecting = false
             config.headers.Authorization = `Bearer ${token}`
         }
     }
@@ -269,14 +276,12 @@ http2.interceptors.response.use(
         }
         const { status } = error.response;
         if (status === 401) {
-            localStorage.removeItem(TOKEN_KEY);
-            ElMessage.warning('登陆过期，请重新登陆')
-            router.push('/login')
-            return Promise.reject();
+            clearAuthAndRedirect()
+            return stopExpiredRequest()
         }
         // 其他错误处理（可选）
         return Promise.reject(error);
     }
 );
 
-export default request
+export default request