vue-router使用next()跳转到指定路径时会无限循环问题

beforeRouteLeave (to, from, next) {
        console.log('离开路路由')
       if(to.fullPath==='/home'){
         next();
       }else{
         next('/home')
       }

// 下面的写法会死循环
     beforeRouteLeave (to, from, next) {
        console.log('离开路路由')
       next('/home')
}

router.beforeEach((to, from, next) => {
  console.log('beforeEach');
  if(true){
    next('/');
  }else{
    next();
 }
});

router.beforeEach((to, from, next) => {
var userInfo= JSON. parse(sess ionStorage. getItem('userInfoStorage'));//获取浏览器缓存的用户信息
if(userInfo){//如果有就直接到首页咯
next() ;
}else{
if(to. path==' /login' ){//如果是登录页面路径，就直接next()
next() ;
}else{//不然就跳转到登录;
next(' /login');
}
}
});

// ('/')为登陆界面  
// next() 默认跳转to的path
if(isRequireAuthTrue){
    if(isLogin){
      console.log('导航守卫保护');
      next(); //成功则跳转
    }else {
      console.log('你还没有登陆!');
      next({path:'/'}) //失败则跳转到登陆页面
    }
  }else {
    next();//不需要导航守卫的则直接next跳转
  }

router.beforeEach((to, from, next) => {
    let {path} = to;
    if(path=== "/somewhere") {
        next(); // 导航目的地符合预期，继续后续事情
     }else {
        next("/somewhere");  
        // 导航目的地不符合预期，重新路由新路径地址，然后会再次触发beforeEach钩子并进行二次判断
    }
});

import Router from 'vue-router'
const router = new Router({
    {path: '/', component: index },
    {path: '/login', component: login},
    {path: '/error', component: error},
    {path: '*', component: error}
})

router.beforeEach((to, from, next) => {
    const isLogin = sessionStorage.getItem('loginData')
    if (isLogin) {
        next()
    } else {
        next('/error')
    } 
})

router.beforeEach((to, from, next) => {
    const isLogin = sessionStorage.getItem('loginData')
    if (isLogin) {
        next()
    } else {
        //next('/error')
        if (to.path === '/error') { //这就是跳出循环的关键
           next()
        } else {
            next('/error')
        }
    } 
})