Php 如何使控制器在Symfony 4中返回响应？_Php_Symfony_Return Value

Php 如何使控制器在Symfony 4中返回响应？

php symfony

Php 如何使控制器在Symfony 4中返回响应？,php,symfony,return-value,Php,Symfony,Return Value,根据本教程，我在Symfony 4中安装了DataTableBundle：为此： return $this->render('list.html.twig', ['datatable' => $table]); 但是我得到了一个空白页面，上面写着加载…，没有其他内容 list.html.twig：  <link rel="stylesheet" type="text/css" href="h

根据本教程，我在Symfony 4中安装了DataTableBundle：

为此：

return $this->render('list.html.twig', ['datatable' => $table]);

但是我得到了一个空白页面，上面写着

加载…

，没有其他内容

list.html.twig：

<!-- in the <head> section -->
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/v/dt/jq-3.2.1/dt-1.10.16/datatables.min.css"/>


<!-- Insert this where you want the table to appear -->
<div id="presidents">Loading...</div>

<!-- before the closing <body> tag -->
<script type="text/javascript" src="https://cdn.datatables.net/v/dt/jq-3.2.1/dt-1.10.16/datatables.min.js"></script>


<!-- Insert this at the end of your body element, but before the closing tag -->
<script src="{{ asset('bundles/datatables/js/datatables.js') }}"></script>
<script>
$(function() {
    $('#presidents').initDataTables({{ datatable_settings(datatable) }});
});
</script>

失踪的返回确实是问题所在。在你的list.html.twig中会找到一个空白页面上写有“Loading…”字样的原因。但是要解决这个问题，您必须提供更多的代码。

您是否像这里提到的那样将config部分添加到config.yml中。因为地址表有一个默认模板，这将导致html代码注入到list.html中的占位符#presidents中。twig@KlausSchürg我将它添加到我的服务中。yaml但这不起作用，所以我删除了它。我想我没有config.yamli，如果我将其添加到services.yaml，则配置键“language_from_cdn”在“/Users/work/project/config/services.yaml”中的定义“datatables”不受支持。允许的配置键是/Users/work/project/config/services.yaml中的“别名”、“父级”、“类”、“共享”、“合成”、“惰性”、“公共”、“抽象”、“不推荐”、“工厂”、“文件”、“参数”、“属性”、“配置器”、“调用”、“标记”、“装饰”、“装饰内部名称”、“装饰优先级”、“自动连线”、“自动配置”、“绑定”（加载在resource/Users/work/project/config/services.yaml中）。在打开呈现html的源代码时，您是否安装了这些资产，它们是否可用？可能只是js没有加载？很高兴听到：-）祝您周末愉快。。。

return $this->render('list.html.twig', ['datatable' => $table]);

<!-- in the <head> section -->
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/v/dt/jq-3.2.1/dt-1.10.16/datatables.min.css"/>


<!-- Insert this where you want the table to appear -->
<div id="presidents">Loading...</div>

<!-- before the closing <body> tag -->
<script type="text/javascript" src="https://cdn.datatables.net/v/dt/jq-3.2.1/dt-1.10.16/datatables.min.js"></script>


<!-- Insert this at the end of your body element, but before the closing tag -->
<script src="{{ asset('bundles/datatables/js/datatables.js') }}"></script>
<script>
$(function() {
    $('#presidents').initDataTables({{ datatable_settings(datatable) }});
});
</script>

# Put parameters here that don't need to change on each machine where the app is deployed
# https://symfony.com/doc/current/best_practices/configuration.html#application-related-configuration
parameters:
    locale: 'en'

services:
    # default configuration for services in *this* file
    _defaults:
        autowire: true      # Automatically injects dependencies in your services.
        autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.
        public: false       # Allows optimizing the container by removing unused services; this also means
                            # fetching services directly from the container via $container->get() won't work.
                            # The best practice is to be explicit about your dependencies anyway.


    # makes classes in src/ available to be used as services
    # this creates a service per class whose id is the fully-qualified class name
    App\:
        resource: '../src/*'
        exclude: '../src/{Entity,Migrations,Tests,Kernel.php}'

    # controllers are imported separately to make sure services can be injected
    # as action arguments even if you don't extend any base controller class
    App\Controller\:
        resource: '../src/Controller'
        tags: ['controller.service_arguments']

    # add more service definitions when explicit configuration is needed
    # please note that last definitions always *replace* previous ones