在我的 Symfony 应用程序中,我使用的是谷歌图表。
我收到一个错误:
XMLHttpRequest cannot load https://www.google.com/uds/api/visualization/1.0/dca88b1ff7033fac80178eb526cb263e/ui+en.css. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://foodmeup.dev' is therefore not allowed access.
我试图通过设置一个向响应添加 header 的监听器来解决这个问题(请参阅此处的 cors 监听器:Symfony2 - how can I set custom Headers?)但它不起作用,我得到了同样的错误。
<?php
namespace AppBundle\EventListener;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
class CorsListener
{
public function onKernelResponse(FilterResponseEvent $event)
{
$response = $event->getResponse();
$responseHeaders = $response->headers;
$responseHeaders->set('Access-Control-Allow-Headers', 'origin, content-type, accept');
$responseHeaders->set('Access-Control-Allow-Origin', '*');
$responseHeaders->set('Access-Control-Allow-Methods', 'POST, GET, PUT, DELETE, PATCH, OPTIONS');
$event->setResponse($response);
}
}
在我看来,我使用了一个简单的谷歌图表:
<div class="piechart margin-auto" style="height: 220px;" data-completeness="{{ completeness }}"></div>
<script>var googleCharts = [];</script>
<script type="text/javascript">
function drawProfilePieCharts()
{
var completeness = $(this).data('completeness');
var data = google.visualization.arrayToDataTable([
['Nom', 'Valeur'],
["Profil rempli à ", completeness],
['Manque', 100 - completeness]
]);
var options = {
backgroundColor: { fill:'transparent'},
pieSliceBorderColor : 'transparent',
pieHole: 0.8,
legend: {position: 'top'},
width: 220,
height: 220,
tooltip: {trigger: 'none'},
pieStartAngle: -90,
pieSliceTextStyle :{fontsize : 16, color: 'transparent'},
slices: {
0: { color: '#09b4ff'},
1: { color: '#444'}
},
chartArea : {width: '90%', height: '90%'}
};
var chart = new google.visualization.PieChart(this);
chart.draw(data, options);
}
googleCharts.push("$('.piechart').each(drawProfilePieCharts)");
$(window).resize(function(){
drawAllCharts();
});
google.load('visualization', '1', {packages:['corechart', 'bar', 'line']});
var drawAllCharts = function() {
for (var i = 0; i < googleCharts.length; i++) {
eval(googleCharts[i]);
}
};
google.setOnLoadCallback(function(){drawAllCharts()});
</script>
最佳答案
尝试只在响应中设置 header ,它奏效了:
$response->headers->set('Access-Control-Allow-Origin', 'http://foodmeup.dev');
请注意,URL 必须与预期的完全一致,带有 HTTP 或 HTTPS,末尾没有/。
可以设置多个 header ,在我的例子中我使用了 4 个,HTTP 和 HTTPS,开发和生产服务器。一切正常。
关于javascript - Symfony2 : allow Access-Control-Allow-Origin with google charts,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29975384/