Question

我是Ajax和Json的新手。我正在尝试实施Google示例中的Google图表

 <script type="text/javascript" src="https://www.gstatic.com/charts/loader.js">

 google.charts.load('current', {packages: ['corechart', 'line']});
 google.charts.setOnLoadCallback(drawBasic);

function drawBasic() {

  var data = new google.visualization.DataTable();
  data.addColumn('number', 'X');
  data.addColumn('number', 'Dogs');

  data.addRows([
    [0, 0],   [1, 10],  [2, 23],  [3, 17],  [4, 18],  [5, 9],
    [6, 11],  [7, 27],  [8, 33],  [9, 40],  [10, 32], [11, 35],
    [12, 30], [13, 40], [14, 42], [15, 47], [16, 44], [17, 48],
    [18, 52], [19, 54], [20, 42], [21, 55], [22, 56], [23, 57],
    [24, 60], [25, 50], [26, 52], [27, 51], [28, 49], [29, 53],
    [30, 55], [31, 60], [32, 61], [33, 59], [34, 62], [35, 65],
    [36, 62], [37, 58], [38, 55], [39, 61], [40, 64], [41, 65],
    [42, 63], [43, 66], [44, 67], [45, 69], [46, 69], [47, 70],
    [48, 72], [49, 68], [50, 66], [51, 65], [52, 67], [53, 70],
    [54, 71], [55, 72], [56, 73], [57, 75], [58, 70], [59, 68],
    [60, 64], [61, 60], [62, 65], [63, 67], [64, 68], [65, 69],
    [66, 70], [67, 72], [68, 75], [69, 80]
  ]);

  var options = {
    hAxis: {
      title: 'Time'
    },
    vAxis: {
      title: 'Popularity'
    }
  };

  var chart = new google.visualization.LineChart(document.getElementById('chart_div'));

  chart.draw(data, options);
}
 </script>
 <div id="chart_div"></div>

但是我想在Javascript中硬编码数据，我希望能够从servlet发送它。你能在drawBasic（）函数中显示一些执行此操作的Servlet代码以及读取JSON（我假设Servlet发送JSON对象）的相应JavaScript / Ajax代码，并相应地填充 data 变量吗？提前谢谢

谷歌图表与servlet发送的json

0 个答案: