我们先把共享的菜单模板抽离出来common.blade.php，放在resources/views/admin下
<!DOCTYPE html>
<html lang="{{ str_replace('_', '-', app()->getLocale()) }}">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Laravel</title>
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<link href="https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700&display=swap" rel="stylesheet">
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<style>
/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}a{background-color:transparent}[hidden]{display:none}html{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;line-height:1.5}*,:after,:before{box-sizing:border-box;border:0 solid #e2e8f0}a{color:inherit;text-decoration:inherit}svg,video{display:block;vertical-align:middle}video{max-width:100%;height:auto}.bg-white{--bg-opacity:1;background-color:#fff;background-color:rgba(255,255,255,var(--bg-opacity))}.bg-gray-100{--bg-opacity:1;background-color:#f7fafc;background-color:rgba(247,250,252,var(--bg-opacity))}.border-gray-200{--border-opacity:1;border-color:#edf2f7;border-color:rgba(237,242,247,var(--border-opacity))}.border-t{border-top-width:1px}.flex{display:flex}.grid{display:grid}.hidden{display:none}.items-center{align-items:center}.justify-center{justify-content:center}.font-semibold{font-weight:600}.h-5{height:1.25rem}.h-8{height:2rem}.h-16{height:4rem}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.leading-7{line-height:1.75rem}.mx-auto{margin-left:auto;margin-right:auto}.ml-1{margin-left:.25rem}.mt-2{margin-top:.5rem}.mr-2{margin-right:.5rem}.ml-2{margin-left:.5rem}.mt-4{margin-top:1rem}.ml-4{margin-left:1rem}.mt-8{margin-top:2rem}.ml-12{margin-left:3rem}.-mt-px{margin-top:-1px}.max-w-6xl{max-width:72rem}.min-h-screen{min-height:100vh}.overflow-hidden{overflow:hidden}.p-6{padding:1.5rem}.py-4{padding-top:1rem;padding-bottom:1rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.pt-8{padding-top:2rem}.fixed{position:fixed}.relative{position:relative}.top-0{top:0}.right-0{right:0}.shadow{box-shadow:0 1px 3px 0 rgba(0,0,0,.1),0 1px 2px 0 rgba(0,0,0,.06)}.text-center{text-align:center}.text-gray-200{--text-opacity:1;color:#edf2f7;color:rgba(237,242,247,var(--text-opacity))}.text-gray-300{--text-opacity:1;color:#e2e8f0;color:rgba(226,232,240,var(--text-opacity))}.text-gray-400{--text-opacity:1;color:#cbd5e0;color:rgba(203,213,224,var(--text-opacity))}.text-gray-500{--text-opacity:1;color:#a0aec0;color:rgba(160,174,192,var(--text-opacity))}.text-gray-600{--text-opacity:1;color:#718096;color:rgba(113,128,150,var(--text-opacity))}.text-gray-700{--text-opacity:1;color:#4a5568;color:rgba(74,85,104,var(--text-opacity))}.text-gray-900{--text-opacity:1;color:#1a202c;color:rgba(26,32,44,var(--text-opacity))}.underline{text-decoration:underline}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.w-5{width:1.25rem}.w-8{width:2rem}.w-auto{width:auto}.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}@media (min-width:640px){.sm\:rounded-lg{border-radius:.5rem}.sm\:block{display:block}.sm\:items-center{align-items:center}.sm\:justify-start{justify-content:flex-start}.sm\:justify-between{justify-content:space-between}.sm\:h-20{height:5rem}.sm\:ml-0{margin-left:0}.sm\:px-6{padding-left:1.5rem;padding-right:1.5rem}.sm\:pt-0{padding-top:0}.sm\:text-left{text-align:left}.sm\:text-right{text-align:right}}@media (min-width:768px){.md\:border-t-0{border-top-width:0}.md\:border-l{border-left-width:1px}.md\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:1024px){.lg\:px-8{padding-left:2rem;padding-right:2rem}}@media (prefers-color-scheme:dark){.dark\:bg-gray-800{--bg-opacity:1;background-color:#2d3748;background-color:rgba(45,55,72,var(--bg-opacity))}.dark\:bg-gray-900{--bg-opacity:1;background-color:#1a202c;background-color:rgba(26,32,44,var(--bg-opacity))}.dark\:border-gray-700{--border-opacity:1;border-color:#4a5568;border-color:rgba(74,85,104,var(--border-opacity))}.dark\:text-white{--text-opacity:1;color:#fff;color:rgba(255,255,255,var(--text-opacity))}.dark\:text-gray-400{--text-opacity:1;color:#cbd5e0;color:rgba(203,213,224,var(--text-opacity))}.dark\:text-gray-500{--tw-text-opacity:1;color:#6b7280;color:rgba(107,114,128,var(--tw-text-opacity))}}
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<script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<link href="{{asset('bootstrap/css/bootstrap.min.css')}}" rel="stylesheet">
<script type="text/javascript" src="{{asset('bootstrap/js/bootstrap.bundle.min.js')}}"></script>
<style>
body {
font-family: 'Nunito', sans-serif;
}
</style>
</head>
<body class="antialiased">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">后台管理</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
@foreach ($menus as $k=>$v)
<li class="nav-item dropdown">
@if (count($v['sub']))
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-expanded="false">
{{$v['menuName']}}
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
@foreach ($v['sub'] as $kk=>$vv)
<a class="dropdown-item" href="{{route($vv['url'])}}">{{$vv['menuName']}}</a>
@endforeach
</div>
@else
<a class="nav-link" href="{{route($v['url'])}}" id="navbarDropdown" role="button" aria-expanded="false">
{{$v['menuName']}}
</a>
@endif
</li>
@endforeach
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="关键字搜索" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">搜索</button>
</form>
</div>
</nav>
@section('content')
@show
</body>
@section('javascript')
@show
</html>
创建一个welcome.blade.php
@extends('admin.common')
@section('content')
<h1>欢迎登录后台管理系统</h1>
@endsection修改我们之前的LoginController.php文件
<?php
namespace App\Http\Controllers\admin;
use App\Http\Controllers\Controller;
use App\Http\Requests\LoginRequest;
use Illuminate\Support\Facades\Validator;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
class LoginController extends Controller
{
//
public function index()
{
return view("admin.login");
}
public function loginAct(LoginRequest $request){
$info = $request->only(['username','password']);
$state = Auth::guard('admin')->attempt($info);
return view('admin.welcome');
}
public function logout(){
Auth::guard('admin')->logout();
}
}
登录成功后会跳转到welcome.blade.php
我们看下输出显示的结果：
我们已经显示出视图共享的数据了。因为视图共享把$menus在模板中存储了我们定义的菜单数据，所以我们在各个模板中都能使用这个变量。