我正在尝试在 jboss seam 2 项目中使用 google 可视化 api。
我创建了一个简单的示例，实际上取自 Google Quick Start page .
<html>
<head>
<!--Load the AJAX API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
// Load the Visualization API and the piechart package.
google.load('visualization', '1.0', {'packages':['corechart']});
// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(drawChart);
// Callback that creates and populates a data table,
// instantiates the pie chart, passes in the data and
// draws it.
function drawChart() {
// Create the data table.
var data = new google.visualization.DataTable();
data.addColumn('string', 'Topping');
data.addColumn('number', 'Slices');
data.addRows([
['Mushrooms', 3],
['Onions', 1],
['Olives', 1],
['Zucchini', 1],
['Pepperoni', 2]
]);
// Set chart options
var options = {'title':'How Much Pizza I Ate Last Night',
'width':400,
'height':300};
// Instantiate and draw our chart, passing in some options.
var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<!--Div that will hold the pie chart-->
<div id="chart_div"></div>
</body>
</html>
当我在网络浏览器中将其作为文件打开时，它运行良好。但是当我将它放入我的 Jboss Seam 2 项目并在 Web 浏览器中打开时，它会在红色背景上生成一条错误消息“b[c] 未定义”。
这是我在浏览器中打开页面源代码时看到的内容:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script src="/MCMS/a4j/g/3_3_3.Final/org/ajax4jsf/framework.pack.js" type="text/javascript"></script>
<script src="/MCMS/a4j/g/3_3_3.Final/org/richfaces/ui.pack.js" type="text/javascript"></script>
<link class="component" href="/MCMS/a4j/s/3_3_3.Final/org/richfaces/skin.xcss/DATB/eAGTKJ8eErp8hjQADcsDKg__" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
// Load the Visualization API and the piechart package.
google.load('visualization', '1.0', {'packages':['corechart']});
// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(drawChart);
// Callback that creates and populates a data table,
// instantiates the pie chart, passes in the data and
// draws it.
function drawChart() {
// Create the data table.
var data = new google.visualization.DataTable();
data.addColumn('string', 'Topping');
data.addColumn('number', 'Slices');
data.addRows([
['Mushrooms', 3],
['Onions', 1],
['Olives', 1],
['Zucchini', 1],
['Pepperoni', 2]
]);
// Set chart options
var options = {'title':'How Much Pizza I Ate Last Night',
'width':400,
'height':300};
// Instantiate and draw our chart, passing in some options.
var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="chart_div"></div>
</body>
</html>
如您所见，Jboss Seam 为 a4j 添加了一些其他脚本 src。
a4j javascript 是否可能与 google 可视化 api javascript 冲突？
有什么办法解决这个问题吗？
最佳答案
终于在这里找到解决方案了
Google charts error:Cannot read property 'length' of undefined; Debugging error in Google Charts
这里
http://code.google.com/p/google-visualization-api-issues/issues/detail?id=501 .
在脚本开头添加以下 hack:
Array.prototype.reduce = undefined;
或更优雅地:
Array.prototype.reduce=function(fun){var len=this.length>>>0;if(typeof fun!="function")throw new TypeError;if(len==0&&arguments.length==1)throw new TypeError;var i=0;if(arguments.length>=2)var rv=arguments[1];else{do{if(i in this){var rv=this[i++];break}if(++i>=len)throw new TypeError;}while(true)}for(;i<len;i++)if(i in this)rv=fun.call(undefined,rv,this[i],i,this);return rv};
问题解决了!
关于google-visualization - 谷歌可视化+jboss接缝2，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14363224/