Laravel 简单实现Ajax滚动加载示例

发布:smiling　来源: PHP粉丝网　添加日期：2022-01-15 19:07:58　浏览: 评论：0　

今天小编就为大家分享一篇Laravel 简单实现Ajax滚动加载示例，具有很好的参考价值，希望对大家有所帮助，一起跟随小编过来看看吧。

开发H5项目的时候我们总是需要用到下拉滚动刷新的方式加载页面，这里用 Laravel 实现一下，直接上代码：

创建模型

这里我们不妨创建一个文章（Post）模型，并且生成测试数据 50 条吧。

php artisan make:model -m

模型Post.php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Post extends Model

{

public $fillable = ['title','description'];

}

迁移文件

use Illuminate\Database\Schema\Blueprint;

use Illuminate\Database\Migrations\Migration;

class CreatePostTable extends Migration

{

/**

  * Run the migrations.

  *

  * @return void

  */

public function up()

{

  Schema::create('posts', function (Blueprint $table) {

   $table->increments('id');

   $table->string('title');

   $table->text('description');

   $table->timestamps();

  });

}

/**

  * Reverse the migrations.

  *

  * @return void

  */

public function down()

{

  Schema::drop("posts");

}

}

测试数据 ModelFactory.php

$factory->define(App\Post::class, function (Faker\Generator $faker) {

return [

'title' => $faker->sentence,

'description' => $faker->paragraph,

];

});

填充

<?php

use Illuminate\Database\Seeder;

class DatabaseSeeder extends Seeder

{

/**

  * Run the database seeds.

  *

  * @return void

  */

public function run()

{

  // $this->call(UsersTableSeeder::class);

  factory(App\Post::class, 50)->create();

}

}

路由

Route::get('my-post', 'PostController@myPost');

控制器

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;

use App\Post;

class PostController extends Controller

{

public function myPost(Request $request)

{

  $posts = Post::paginate(6);

  if ($request->ajax()) {

   $view = view('data',compact('posts'))->render();

   return response()->json(['html'=>$view]);

  }

  return view('my-post',compact('posts'));

}

}

视图文件 resources/view/my-post.php

<!DOCTYPE html>

<html>

<head>

<title>Laravel 分页滚动加载</title>

<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>

<link href="http://libs.baidu.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="external nofollow" rel="stylesheet">

<style type="text/css">

  .ajax-load{

   background: #e1e1e1;

   padding: 10px 0px;

   width: 100%;

  }

</style>

</head>

<body>

<div class="container">

<h2 class="text-center">Laravel 分页滚动加载</h2>

<br/>

<div class="col-md-12" id="post-data">

  @include('data')

</div>

</div>

<div class="ajax-load text-center" style="display:none">

<p>![](./loader.gif)加载更多……</p>

</div>

<script type="text/javascript">

var page = 1;

$(window).scroll(function() {

  if($(window).scrollTop() + $(window).height() + 1>= $(document).height()) {

   page++;

   loadMoreData(page);

  }

});

function loadMoreData(page){

  $.ajax(

   {

    url: '?page=' + page,

    type: "get",

    beforeSend: function()

    {

     $('.ajax-load').show();

    }

   })

   .done(function(data)

   {

    //console.log(data.html);

    if(data.html == " "){

     $('.ajax-load').html("没有数据了……");

     return;

    }

    $('.ajax-load').hide();

    $("#post-data").append(data.html);

   })

   .fail(function(jqXHR, ajaxOptions, thrownError)

   {

    alert('服务未响应……');

   });

}

</script>

</body>

</html>

resources/view/data.php

@foreach($posts as $post)

<div>

<h3><a href="">{{ $post->title }}</a></h3>

<p>{{ str_limit($post->description, 400) }}</p>

<div class="text-right">

<button class="btn btn-success">Read More</button>

</div>

<hr style="margin-top:5px;">

</div>

@endforeach