From 0c614dbb875510260adc01ab8a023d910daad21e Mon Sep 17 00:00:00 2001
From: unknown <2905980497@qq.com>
Date: Sun, 26 Jul 2020 19:47:24 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E4=BA=A4=E4=BB=A3=E7=A0=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../.gitignore"                               |  5 ++
 .../permission.js"                            | 90 +++++++++++++++++++
 2 files changed, 95 insertions(+)
 create mode 100644 "\347\250\213\345\215\232\346\226\207/.gitignore"
 create mode 100644 "\347\250\213\345\215\232\346\226\207/permission.js"

diff --git "a/\347\250\213\345\215\232\346\226\207/.gitignore" "b/\347\250\213\345\215\232\346\226\207/.gitignore"
new file mode 100644
index 0000000..0511e2b
--- /dev/null
+++ "b/\347\250\213\345\215\232\346\226\207/.gitignore"
@@ -0,0 +1,5 @@
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
diff --git "a/\347\250\213\345\215\232\346\226\207/permission.js" "b/\347\250\213\345\215\232\346\226\207/permission.js"
new file mode 100644
index 0000000..6d91d39
--- /dev/null
+++ "b/\347\250\213\345\215\232\346\226\207/permission.js"
@@ -0,0 +1,90 @@
+import router from './router'
+import store from './store'
+//import { Message } from 'element-ui'
+import NProgress from 'nprogress'
+import 'nprogress/nprogress.css' 
+import { getToken } from '@/utils/auth' 
+import getPageTitle from '@/utils/get-page-title'
+import { canTurnTo } from '@/utils/access'
+import { has } from 'core-js/fn/dict'
+
+NProgress.configure({ showSpinner: false }) 
+
+
+const turnTo = (to, access, next) => {
+  var can = canTurnTo(to.name, access, router.options.routes)
+  if (can) next()
+  else next({ replace: true, name: 'error_401' })
+}
+
+router.beforeEach(async (to, from, next) => {           
+  NProgress.start()                                    
+                                  
+  document.title = getPageTitle(to.meta.title)          
+
+  const hasToken = getToken()                         
+  if (hasToken) {                                      
+    console.log(to.path)
+    if (to.path === '/login') {                        
+      next({ path: '/' })                               
+      NProgress.done()                                 
+    } else {                                           
+      var userInfo = store.state.user.name              
+      if (userInfo) {                                   
+        turnTo(to, store.state.user.access, next)      
+      } else {                                          
+        console.log('登录成功，已经有token，',
+          '但是还没有用户信息，准备获用户信息')             
+        store.dispatch('user/getInfo').then(user => {   
+          turnTo(to, user.access, next)                 
+          console.log(next())
+        })                                              
+          .catch(() => {                              
+            console.log('获取 失败！！')                  
+            store.dispatch('user/resetToken')            
+            next('/login')                               
+          })                                              
+      }                                                   
+    }                                                  
+  }                                                   
+  else {
+    /* has no token*/
+
+    if (to.path === '/login') {
+      // in the free login whitelist, go directly
+      next()
+    } else {
+      // other pages that do not have permission to access are redirected to the login page.
+      next(`/login`)
+      NProgress.done()
+    }
+  }
+})                                                       
+//伪代码
+
+// var  hasToken  =  获取令牌()
+
+// if(hasToken){
+//   if(登录成功){
+//     前往主页
+//   }else{
+//     var userInfo = 获取用户名()
+//     if(userInfo){
+//       前往下一级路由
+//     }else{
+//       获取用户信息().then(()=>{
+//         前往下一级路由
+//       }).catch(()=>{        
+//         刷新令牌信息()
+//         回到登录页面
+//       })
+//     }
+//   }
+// }else{
+//   返回登录页面
+// }
+
+router.afterEach(() => {
+  NProgress.done()
+})
+
-- 
Gitee