Question

我正在寻找使用json文件或本地电子表格（.xlsx）在Google可视化中填充数据表的最简单方法。

继承我的代码：

    <!DOCTYPE html>
<html>
  <head>
    <!--Load the AJAX API-->
    <script type="text/javascript" src="https://www.google.com/jsapi"></script>
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
    <script type="text/javascript">

    // Load the Visualization API and the piechart package.
    google.load('visualization', '1', {'packages':['corechart']});

    // Set a callback to run when the Google Visualization API is loaded.
    google.setOnLoadCallback(drawChart);

    function drawChart() {

      var data = new google.visualization.DataTable.fromJSON(sampleData.json,0.6);

      // Instantiate and draw our chart, passing in some options.
      var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
      chart.draw(data, {width: 400, height: 240});
    }

    </script>
  </head>

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

继承我的json文件：

    {
  "cols": [
        {"id":"","label":"Topping","pattern":"","type":"string"},
        {"id":"","label":"Slices","pattern":"","type":"number"}
      ],
  "rows": [
        {"c":[{"v":"Mushrooms","f":null},{"v":3,"f":null}]},
        {"c":[{"v":"Onions","f":null},{"v":1,"f":null}]},
        {"c":[{"v":"Olives","f":null},{"v":1,"f":null}]},
        {"c":[{"v":"Zucchini","f":null},{"v":1,"f":null}]},
        {"c":[{"v":"Pepperoni","f":null},{"v":2,"f":null}]}
      ] 
    }

当我在浏览器中运行代码时，我得到了 “未捕获的ReferenceError：未定义sampleData”

任何人都知道如何才能使这项工作？

提前致谢

Answer 1

您可以简单地将JSON文件的内容直接放在HTML中的字符串“sampleData.JSON”所在的位置。也就是说，取出“sampleData.JSON”并将其替换为JSON文件的全部内容。如果你这样做，我很确定你会取得一些进展。

Answer 2

尝试将sampleData.json放在引号中，假设文件名为sampleData.json并且与HTML位于同一文件夹中。

var data = new google.visualization.DataTable.fromJSON('sampleData.json',0.6);

直接使用JSON文件填充DataTable，或查询本地电子表格（Google可视化）

2 个答案: