Route::resource('articles', 'ArticlesController'); 

Route::get('/articles', 'ArticlesController@index')->name('articles.index'); 
Route::get('/articles/{id}', 'ArticlesController@show')->name('articles.show'); 
Route::get('/articles/create', 'ArticlesController@create')->name('articles.create'); 
Route::post('/articles', 'ArticlesController@store')->name('articles.store'); 
Route::get('/articles/{id}/edit', 'ArticlesController@edit')->name('articles.edit'); 
Route::patch('/articles/{id}', 'ArticlesController@update')->name('articles.update'); 
Route::delete('/articles/{id}', 'ArticlesController@destroy')->name('articles.destroy'); 

php artisan make:controller ArticlesController 

@extends('layouts.art')
@section('content')

 <form class="form-horizontal" method="post" action="{{route('blog.store')}}">
   {{ csrf_field() }}
 <div class="form-group">
 <label for="inputEmail3" class="col-sm-2 control-label">标题</label>
 <div class="col-sm-8">
  <input type="title" class="form-control" id="title" name="title">
 </div>
 </div>

 <div class="form-group">
 <label for="inputEmail3" class="col-sm-2 control-label">内容</label>
 <div class="col-sm-8">
  <textarea class="form-control" rows="5" id="content" name="content"></textarea>
 </div>
 </div>

 <div class="form-group">
 <div class="col-sm-offset-2 col-sm-10">
  <button type="submit" class="btn btn-default">创建</button>
 </div>
 </div>
</form> 
@endsection

php artisan make:migration create_articles_talbe --create=articles 

public function up() 
 {
  Schema::create('articles', function (Blueprint $table) {
   $table->increments('id');
   $table->string('title');
   $table->longText('content');
   $table->timestamps();
  });
 }
public function down() 
 {
  Schema::dropIfExists('articles');
 }

php artisan migrate 

php artisan make:model Article 

namespace App;

use Illuminate\Database\Eloquent\Model;

class Article extends Model 
{
 //对应的表
 protected $table = 'articles';
 //通过model可以写入的字段
 protected $fillable = [
  'title', 'content',
 ];
}

 public function store(Request $request)
 {
  //数据验证 错误处理
  $this->validate($request,[
   'title'=>'required|max:50',
   'content'=>'required|max:500',
   ]);
  // 1 orm方式写入
  $article = Article::create([
   'title'=>$request->title,
   'content'=>$request->content,
   ]);
  //2 或者
  /* $article = new Article();
   $article->title =$request->title;
   $article->content = $request->content;
   $article->save();*/

   //3 db方式写入
   //insert()方法返回值为true 和 false
   //$res = DB::table('articles')->insert(['title'=>$request->title,'content'=>$request->content]);
  return redirect()->route('blog.index');
 }

@if (count($errors) > 0)
 <div class="alert alert-danger">
  <ul>
   @foreach($errors->all() as $error)
   <li>{{ $error }}</li>
   @endforeach
  </ul>
 </div>
@endif

use App\Article;

public function index() 
 {
  $articles = Article::orderBy('created_at','asc')->get();

  return view('articles.index', ['articles'=>$articles]);
 }

@extends('layouts.art')
@section('content')

 <a class="btn btn-primary" href="{{route('blog.create')}}" rel="external nofollow" >添加文章</a>


 @foreach($articles as $article)
 <div class="panel panel-default">
 <div class="panel-body">
 {{$article->title}}
 <a href="{{route('blog.show',$article->id)}}" rel="external nofollow" class="btn btn-info">阅读</a>
 <a href="{{route('blog.edit', $article->id)}}" rel="external nofollow" class="btn btn-info">修改</a>

  <form action="{{ route('blog.destroy', $article->id) }}" method="post" style="display: inline-block;">
   {{ csrf_field() }}
   {{ method_field('DELETE') }}
   <button type="submit" class="btn btn-danger">删除</button>
  </form>
 </div>
 </div>
 @endforeach

 {!! $articles->render() !!}
 @endsection

@extends('layouts.art')
@section('content')

 <form class="form-horizontal" method="post" action="{{route('blog.update',$article->id)}}">
   {{ csrf_field() }}
  {{ method_field('PATCH') }}
 <div class="form-group">
 <label for="inputEmail3" class="col-sm-2 control-label">标题</label>
 <div class="col-sm-10">
  <input type="title" class="form-control" id="title" name="title" value="{{ $article->title }}">
 </div>
 </div>


 <div class="form-group">
 <label for="inputEmail3" class="col-sm-2 control-label">内容</label>
 <div class="col-sm-10">
  <textarea class="form-control" rows="5" id="content" name="content"> {{ $article->content }}</textarea>
 </div>
 </div>


 <div class="form-group">
 <div class="col-sm-offset-2 col-sm-10">
  <button type="submit" class="btn btn-default">修改</button>
 </div>
 </div>
</form> 
@endsection

//展示修改模板
public function edit($id) 
 {
  $article = Article::findOrFail($id);
  return view('art.edit',['article'=>$article]);
 }
//执行修改
public function update(Request $request, $id) 
 {
  $this->validate($request, [
   'title' => 'required|max:50',
   'content'=>'required|max:500',
  ]);

  $article = Article::findOrFail($id);
  $article->update([
   'title' => $request->title,
   'content' => $request->content,
  ]);

   return redirect()->route('blog.index');
 }

 <form action="{{ route('blog.destroy', $article->id) }}" method="post" style="display: inline-block;">
   {{ csrf_field() }}
   {{ method_field('DELETE') }}
   <button type="submit" class="btn btn-danger">删除</button>
  </form>

public function destroy($id) 
 {
  $article = Article::findOrFail($id);
  $article->delete();
  return back();
 }