好了，基础的测试通了，咱们开始增删改了
思路整理
先创建项目功能控制器
然后设置路由访问规则
然后开发项目的增删改功能
1 先创建项目的控制器
php artisan make:controller ProjectsController
生成的文件在 blog\app\Http\Controllers 这个目录下
2 设置路由访问规则，找到文件 blog\app\routes\web.php 添加如下代码
Route::resource('projects', 'ProjectsController');
Route::get('projects/show/{id}', 'ProjectsController@show');
意思是可以访问projects的控制器
3 填充 项目控制器
blog\app\http\Controllers\ProjectsController
<?php namespace App\Http\Controllers; use Illuminate\Http\Request;
use App\Projects; class ProjectsController extends Controller
{
/**
*保存
*/
public function store(Request $request)
{
$projects = new Projects;
$projects->name = $request->input('name');
$projects->author = $request->input('author');
$projects->description = $request->input('description');
if ($projects->save()) {
return redirect('projects');
} else {
return back()->withInput()->withErrors('添加失败，请重试');
}
} //更新
public function update(Request $request,$id)
{
$projects = Projects::find($id);
$projects->name = $request->input('name');
$projects->author = $request->input('author');
$projects->description = $request->input('description'); if ($projects->save()) {
return redirect('projects');
} else {
return back()->withInput()->withErrors('更新失败，请重试');
}
} //添加
public function create()
{
return view('projects.create');
} //编辑
public function edit($id)
{
$project=Projects::find($id); return view('projects.edit',compact('project'));
} //删除
public function destroy($id)
{
$project = Projects::find($id);
$project->delete();
return redirect('projects');
} //列表
public function index()
{
$projects = Projects::all();
return view('projects.index',compact('projects'));
} //显示
public function show($id)
{
$project=Projects::find($id);
return view('projects.show',compact('project'));
}
}
4 设置模板页
模板页面位置在blog\resources\views 这个位置
1）在views\layouts\app.blade.php 改成如下代码
<!DOCTYPE html>
<html lang="{{ str_replace('_', '-', app()->getLocale()) }}">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1"> <!-- CSRF Token -->
<meta name="csrf-token" content="{{ csrf_token() }}"> <title>{{ config('app.name', 'Laravel') }}</title> <!-- Scripts -->
<script src="{{ asset('js/app.js') }}" defer></script> <!-- Fonts -->
<link rel="dns-prefetch" href="https://fonts.gstatic.com">
<link href="https://fonts.googleapis.com/css?family=Raleway:300,400,600" rel="stylesheet" type="text/css"> <!-- Styles -->
<link href="{{ asset('css/app.css') }}" rel="stylesheet">
</head>
<body>
<div id="app">
<nav class="navbar navbar-expand-md navbar-light navbar-laravel">
<div class="container">
<a class="navbar-brand" href="{{ url('/') }}">
{{ config('app.name', 'Laravel') }}
</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">
<!-- Left Side Of Navbar -->
<ul class="navbar-nav mr-auto">
<li><a href="/home">后台首页 </a></li>
<li><a href="/projects">管理项目</a></li>
</ul> <!-- Right Side Of Navbar -->
<ul class="navbar-nav ml-auto">
<!-- Authentication Links -->
@guest
<li class="nav-item">
<a class="nav-link" href="{{ route('login') }}">{{ __('Login') }}</a>
</li>
<li class="nav-item">
<a class="nav-link" href="{{ route('register') }}">{{ __('Register') }}</a>
</li>
@else
<li class="nav-item dropdown">
<a id="navbarDropdown" class="nav-link dropdown-toggle" href="#" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" v-pre>
{{ Auth::user()->name }} <span class="caret"></span>
</a> <div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="{{ route('logout') }}"
onclick="event.preventDefault();
document.getElementById('logout-form').submit();">
{{ __('Logout') }}
</a> <form id="logout-form" action="{{ route('logout') }}" method="POST" style="display: none;">
@csrf
</form>
</div>
</li>
@endguest
</ul>
</div>
</div>
</nav> <main class="py-4">
@yield('content')
</main>
</div>
</body>
</html>
其实就是在顶部增加2个链接 一个项目管理 一个后台首页 其他都是原来的代码
2）
我们新建一个projects文件夹
新建4个模板文件
create.blade.php
@extends('layouts.app')
@section('content')
<div class="container">
<div class="row">
<div class="col-md-10 col-md-offset-1">
<div class="panel panel-default">
<div class="panel-heading">新增项目</div>
<div class="panel-body">
@if (count($errors) > )
<div class="alert alert-danger">
<strong>Whoops!</strong> There were some problems with your input.<br><br>
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
<form action="{{ URL('projects') }}" enctype="multipart/form-data" method="POST">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
项目标题：<input type="text" name="name" class="form-control" required="required">
<br>
项目作者：<input type="text" name="author" class="form-control" required="required">
<br>
项目内容： <textarea name="description" rows="" class="form-control"></textarea>
<br>
<button class="btn btn-lg btn-info">新增项目</button>
</form>
</div>
</div>
</div>
</div>
</div>
@endsection
edit.blade.php
@extends('layouts.app')
@section('content')
<div class="container">
<div class="row">
<div class="col-md-10 col-md-offset-1">
<div class="panel panel-default">
<div class="panel-heading">编辑项目</div>
<div class="panel-body">
@if (count($errors) > )
<div class="alert alert-danger">
<strong>Whoops!</strong> There were some problems with your input.<br><br>
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
<form action="{{ URL('projects/'.$project->id) }}" enctype="multipart/form-data" method="POST">
<input name="_method" type="hidden" value="PUT">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
项目标题：<input type="text" name="name" class="form-control" required="required" value="{{ $project->name }}">
<br>
项目作者：<input type="text" name="author" class="form-control" required="required" value="{{ $project->author }}">
<br>
<br>
项目内容：<textarea name="description" rows="" class="form-control" required="required">{{ $project->description }}</textarea>
<br>
<button class="btn btn-lg btn-info">编辑项目</button>
</form>
</div>
</div>
</div>
</div>
</div>
@endsection
index.blade.php
@extends('layouts.app')
@section('content')
<div class="container">
<div class="row">
<div class="col-md-10 col-md-offset-1">
<div class="panel panel-default">
<div class="panel-heading">管理项目</div>
<div class="panel-body">
<a href="{{ URL('projects/create') }}" class="btn btn-lg btn-primary">新增</a>
<table class="table table-striped">
<tr class="row">
<th class="col-lg-2">标题</th>
<th class="col-lg-2">作者</th>
<th class="col-lg-4">查看</th>
<th class="col-lg-1">编辑</th>
<th class="col-lg-1">删除</th>
</tr>
@foreach ($projects as $project)
<tr class="row">
<td class="col-lg-2">
{{ $project->name }}
</td>
<td class="col-lg-2">
{{ $project->author }}
</td>
<td class="col-lg-4">
<a href="{{ URL('projects/show/'.$project->id) }}" target="_blank">
{{ App\Projects::find($project->id)->name }}
</a>
</td>
<td class="col-lg-1">
<a href="{{ URL('projects/'.$project->id.'/edit') }}" class="btn btn-success">编辑</a>
</td>
<td class="col-lg-1">
<form action="{{ URL('projects/'.$project->id) }}" method="POST" style="display: inline;">
<input name="_method" type="hidden" value="DELETE">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
<button type="submit" class="btn btn-danger">删除</button>
</form>
</td>
</tr>
@endforeach
</table>
</div>
</div>
</div>
</div>
</div>
@endsection
show.blade.php
@extends('layouts.app')
@section('content')
<div class="container">
<div class="row">
<div class="col-md-10 col-md-offset-1">
<div class="panel panel-default">
<div class="panel-heading">显示项目</div>
<div class="panel-body">
@if (count($errors) > )
<div class="alert alert-danger">
<strong>Whoops!</strong> There were some problems with your input.<br><br>
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
<input name="_method" type="hidden" value="PUT">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
项目标题：{{ $project->name }}
<br>
项目作者：{{ $project->author }}
<br>
<br>
<br>
项目内容：{{ $project->description }}
<br>
</div>
</div>
</div>
</div>
</div>
@endsection
5 登录后台 操作增删改查
列表
编辑
新增
显示
大功告成，增删改查