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嗨，大家好，我想弄清楚這將如何工作。我不知道爲什麼我總是在index.html谷歌可視化 - AnnotatedTimeLine SQL
<html>
<head>
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["annotatedtimeline"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
//Tell Google Visualization where your script is
var query = new google.visualization.Query('/vis.php');
query.setQuery('select thedate,visits,sales from dothefetch');
query.send(function(result) {
if(result.isError()) {
alert(result.getDetailedMessage());
} else {
var chart = new google.visualization.AnnotatedTimeLine(document.getElementById('chart_div'));
chart.draw(result.getDataTable(), {'colors': ['green', 'blue'], displayAnnotations: true, 'zoomStartTime': new Date(2011, 3 ,1), 'zoomEndTime': new Date(2011, 3 ,2) });
}
});
}
</script>
</head>
<body>
<div id="chart_div"></div>
</body>
</html>
從我vis.php得到一個空白頁
繼承人我的代碼
<?php
require_once 'lib/MC/Google/Visualization.php';
$user = 'root';
$db = new PDO('mysql:host=localhost;dbname=mywebsite',$user,'');
$vis = new MC_Google_Visualization($db,'mysql');
/*
foreach($db->query('SELECT * from total') as $row) {
print_r($row);
}
*/
$vis->addEntity('dothefetch', array(
'fields' => array(
'thedate' => array('field' => 'thedate', 'type' => 'datetime'),
'visits' => array('field' => 'visits', 'type' => 'number'),
'sales' => array('field' => 'sales', 'type' => 'number')
)
));
$vis->setDefaultEntity('dothefetch');
$vis->handleRequest();
?>
誰能告訴我在哪裏錯過了？我總是進入一個空白頁面
這不會有什麼使用App Engine，不是嗎？ – 2011-06-03 00:28:41
你確定你的數據庫返回了什麼嗎？你試過打印結果嗎？他們看起來像什麼？另外，如果你只是轉儲result.getDataTable（）會得到什麼？ – oli 2011-06-04 02:44:51