【无标题】laravel

最新推荐文章于 2025-10-02 21:34:35 发布

原创最新推荐文章于 2025-10-02 21:34:35 发布 · 114 阅读

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#laravel

这是一个基于 Laravel 框架实现的新闻管理系统，包括新闻的增删改查功能。`NewsController` 中定义了各个操作方法，如 `index` 显示所有新闻，`create` 和 `edit` 分别用于创建和编辑新闻，`store` 和 `update` 保存数据到数据库，`destroy` 删除新闻。同时，`show.blade.php`、`index.blade.php` 和 `addnews.blade.php` 等视图文件展示了新闻的详细信息、列表和编辑界面。整个系统使用了 Eloquent ORM 进行数据库交互，并通过 Blade 模板展示数据。

newsController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class NewsController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        //
        $newsList=DB::table('news')->orderBy('id','desc')->get();
        return view('index',compact('newsList'));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
        return view('addnews');
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        //
        // dd($request->all());
        $data=$request->except('_token');
        $data['user_id']=1;
        // dd($data);
        $res=DB::table('news')->insert($data);
        if($res){
            return redirect('/news');
        }
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
        $news=DB::table('news')->where('id',$id)->first();
        return view('show',compact('news'));
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        //
        $news=DB::table('news')->find($id);
        return view('edit',compact('news'));
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id)
    {
        //
        // dd($request->all());
        $news=$request->except('_token','_method');
        $res=DB::table('news')->where('id',$id)->update($news);
        return redirect('news');
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        //
        DB::table('news')->where('id',$id)->delete();
        return redirect('news');
    }
}

show.blade.php

@extends('layout.grail')
@section('title',$news->title)
@section('main')
<div>
	<div>
		{{$news->title}}
	</div>
	<p>{{$news->user_id}}</p>
	<div>
		{{$news->content}}
	</div>
</div>
@endsection

@extends('layout.grail')
@section('title','新闻列表')
@section('main')
    <h2>新闻列表</h2>
    <table class="table">
        <thead>
            <tr>
                <th>编号</th><th>标题</th><th>作者</th><th>类别</th><th>操作</th>
            </tr>
        </thead>
        <tbody>
            @foreach($newsList as $news)
            <tr>
                <td>{{$news->id}}</td>
                <td><a href="{{route('news.show',$news->id)}}">{{$news->title}}</a></td>
                <td>{{$news->user_id}}</td>
                <td>{{$news->category_id}}</td>
                <td class="operation"><a href="{{route('news.edit',$news->id)}}">修改</a>
                <form action="{{route('news.destroy',$news->id)}}" method="post">
                    @method('delete')
                    @csrf
                    <button onclick="return confirm('您确定要删除吗？')">删除</button>
                </form>
                </td>

            </tr>
            @endforeach
        </tbody>
    </table>
    
@endsection
<style>
    button{
        border:none;
        color: #0d6efd;

    }
    table a{
        display: block;
        text-decoration-line: none;
        margin-right: 20px;
    }
    table a:hover{
        text-decoration-line: underline;
    }
   .optgroup>a,button:hover {
        text-decoration-line:underline;
    }
    .operation{
        display: flex;
    }
</style>

@extends('layout.grail')
@section('title','添加新闻')
@section('main')
    <form action="{{route('news.store')}}" method="post">
        <div class="form-group">
            <label for="title">标题</label>
            <input type="text" id="title" name="title" class="form-control" >
        </div>
        <div class="form-group">
            <label for="category_id">类别</label>
            <select name="category_id" id="category_id" class="form-control">
                <option value="0">请选择新闻类别</option>
                <option value="1">时政要闻</option>
                <option value="2">经济动态</option>
                <option value="3">健康信息</option>
                <option value="4">体育新闻</option>
                <option value="5">娱乐八卦</option>
                <option value="6">国际新闻</option>
            </select>
        </div>
        <div class="form-group">
            <label for="content">内容</label>
            <textarea name="content" id="content" cols="30" rows="10" class="form-control"></textarea>
        </div>
        <div>
            <input type="submit" value="添加">
        </div>
        @csrf
    </form>
@endsection

@extends('layout.grail')
@section('title','修改新闻')
@section('main')
    <form action="{{route('news.update',$news->id)}}" method="post">
        @method('put')
        <div class="form-group">
            <label for="title">标题</label>
            <input type="text" id="title" name="title" class="form-control" value="{{$news->title}}">
        </div>
        <div class="form-group">
            <label for="category_id">类别</label>
            <select name="category_id" id="category_id" class="form-control">
                <option value="0">请选择新闻类别</option>
                <option value="1">时政要闻</option>
                <option value="2">经济动态</option>
                <option value="3">健康信息</option>
                <option value="4">体育新闻</option>
                <option value="5">娱乐八卦</option>
                <option value="6">国际新闻</option>
            </select>
        </div>
        <div class="form-group">
            <label for="content">内容</label>
            <textarea name="content" id="content" cols="30" rows="10" class="form-control">
                {{$news->content}}
            </textarea>
        </div>
        <div>
            <input type="submit" value="修改" name="">
        </div>
        @csrf
    </form>
@endsection