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我有一个关于 google api 流程图的问题。我想在一个 jsp 页面上添加几个流程图。在我的流程图控制器中，我遍历了从数据库中获取的列表，并且我想为 foreach 制作一个流程图。

将其添加到模型并在 jsp 页面上显示的最佳方法是什么？

流程图代码是这样的：

    <script type="text/javascript">
  google.load("visualization", "1", {packages:["corechart"]});
  google.setOnLoadCallback(drawChart);
  function drawChart() {
    var data = google.visualization.arrayToDataTable([
      ['Year', 'Sales', 'Expenses'],
      ['2004',  1000,      400],
      ['2005',  1170,      460],
      ['2006',  660,       1120],
      ['2007',  1030,      540]
    ]);

    var options = {
      title: 'Company Performance'
    };

    var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
    chart.draw(data, options);
  }
</script>

该代码但在for循环中填充了我的值，但我不知道如何将其提供给模型？（由于字符串不起作用，我只是尝试过：D）

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1 回答 1

0

用于在一页中显示 2 个图表的代码。您可以调整逻辑并满足您的要求。 文档 

      // 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(drawChart1);
      google.setOnLoadCallback(drawChart2);

      // Callback that creates and populates a data table,
      // instantiates the pie chart, passes in the data and
      // draws it.
      function drawChart1() {

        // 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_div1'));
        chart.draw(data, options);
      }
       function drawChart2() {

        // 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.BarChart(document.getElementById('chart_div2'));
        chart.draw(data, options);
      }

    </script>
  </head>

  <body>
    <!--Div that will hold the pie chart-->
    <div id="chart_div1"></div>
    <div id="chart_div2"></div>
  </body>
</html>
于 2012-06-27T10:17:31.610 回答