小编Mic*_*yen的帖子

我想为一些蜘蛛启用一些http代理,并为其他蜘蛛禁用它们.

我可以这样做吗？

# settings.py
proxy_spiders = ['a1' , b2']

if spider in proxy_spider: #how to get spider name ???
    HTTP_PROXY = 'http://127.0.0.1:8123'
    DOWNLOADER_MIDDLEWARES = {
         'myproject.middlewares.RandomUserAgentMiddleware': 400,
         'myproject.middlewares.ProxyMiddleware': 410,
         'scrapy.contrib.downloadermiddleware.useragent.UserAgentMiddleware': None
    }
else:
    DOWNLOADER_MIDDLEWARES = {
         'myproject.middlewares.RandomUserAgentMiddleware': 400,
         'scrapy.contrib.downloadermiddleware.useragent.UserAgentMiddleware': None
    }

如果上面的代码不起作用,还有其他建议吗？

我正在使用Pjax和Gridview,我希望我的所有操作按钮都能执行ajax.默认情况下,他们不,所以我google搜索并找到删除data-pjax = 0的方法.但是,仍然没有ajax请求,所有这些都是常规请求.

很多人都遇到了这个问题,我也找不到解决方案.

我跟着:

• Yii2 Pjax删除不起作用
• Yii2 Pjax GridView动作按钮问题

我的代码:

<?php Pjax::begin(['id' => 'employee-timesheet-grid-id', 'timeout' => false, 'enablePushState' => false, 'clientOptions' => ['method' => 'POST']]) ?>
<?= GridView::widget([
    'dataProvider' => $dataProvider,
    'columns' => [
        ['class' => 'yii\grid\SerialColumn'],
        [
            'label' => 'Employee',
            'value' => function ($model) { 
                return $model->employeePayRate->employeeName; 
            },
        ],
        [
            'class' => 'yii\grid\ActionColumn', 
            'template' => '{view} {delete}',
            'buttons' => [
                'delete' => function ($url , $model) {
                    return Html::a('<span class="glyphicon glyphicon-trash"></span>', $url, 
                        ['data-confirm' => 'Are you sure you …