vue vuex vue-rouert后台项目——权限路由（适合初学）

sessionStorage.setItem('USERNAME', item.username); //存入 session
commit('SET_ROLE',item.role);
sessionStorage.setItem('ROLE', item.role);
return data={username:item.username,introduce:item.introduce};
}else{
return data;
}
});
resolve(data);
}).catch(error => {
reject(error);
});
},
Roles({ commit }, newrouter){
return new Promise((resolve, reject) => {
commit('SET_NEWROUER',newrouter); //存储最新路由
resolve(newrouter);
}).catch(error => {
reject(error);
});
},

gin.js  actions部分

Logins({ commit }, info){
  return new Promise((resolve, reject) => {
  let data={};
  loginByUserInfo.map(function (item) { //获取所以用户信息
   if(info.username === item.username || info.pew === item.pew){
   commit('SET_USERNAME',item.username); //将username和role进行存储
   sessionStorage.setItem('USERNAME', item.username); //存入 session
   commit('SET_ROLE',item.role);
   sessionStorage.setItem('ROLE', item.role);
   return data={username:item.username,introduce:item.introduce};
   }else{
   return data;
   }
  });
  resolve(data);
 }).catch(error => {
  reject(error);
 });
 },
 Roles({ commit }, newrouter){
 return new Promise((resolve, reject) => {
  commit('SET_NEWROUER',newrouter); //存储最新路由
  resolve(newrouter);
 }).catch(error => {
  reject(error);
 });
 },

main.js

router.beforeEach((to, from, next) => {
 if(store.getters.role){ //判断role 是否存在
 if(store.getters.newrouter.length !== 0){
  next() //resolve 钩子
 }else{
  let newrouter
  if (store.getters.role == 'A') { //判断权限
  newrouter = powerRouter
  } else {
  let newchildren = powerRouter[0].children.filter(route => {
   if(route.meta){
   if(route.meta.role == store.getters.role){
    return true
   }
   return false
   }else{
   return true
   }
  });
  newrouter = powerRouter
  newrouter[0].children = newchildren
  }
  router.addRoutes(newrouter) //添加动态路由
  store.dispatch('Roles',newrouter).then(res => {
  next({ ...to })
  }).catch(() => { 
  })
 }
 }else{
  if (['/login'].indexOf(to.path) !== -1) {
  next()
 } else {
  next('/login')
 }
 }
})

components/index.vue

// mapGetters 辅助函数仅仅是将 store 中的 getter 映射到局部计算属性
...mapGetters([
 'newrouter'
 ])

此项目拿去 捋清楚 vue+vuex+vue-router 的关系是没问题的，这可以说的超级简单的版本，适合初学。上面的内容说的重点，其实也算是项目的全部啦