Jave EE应用程序无法识别Google Visualization API

Question

我想在我的Java EE应用程序中包含Google Visualization API的图表.但是,无论我做什么,应用程序都无法识别API.我以前用过这个,所以我不明白我做错了什么.有人可以看看我的代码并告诉我我做错了什么吗？谢谢!

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>    
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<link type="text/css" href="LOCATION/STYLENAME.css" rel="stylesheet"/>

<script src="/tis/javascript/common/jquery.inlinemenu.js" type="text/javascript"></script>

<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>

<!--Div that will hold the pie chart-->
    <div id="chart_div"></div>

错误如下:

1. ReferenceError:未定义谷歌
2. 方法'setOnLoadCallback'加下划线并说:未解析的函数或方法'setOnLadCallback'

Answer 1

尝试修改这行代码：

google.load('visualization', '1', {packages: ['corechart']});

对此：

google.load('visualization', '1', {packages: ['corechart'], callback : drawChart});