Question

我正在使用图表库，需要输入看起来像某种格式。这种格式看起来像JSON，但它不是，在这里我分享一些数据来了解格式：

[{
                    year: 2005,
                    income: 23.5,
                    expenses: 18.1
                }, {
                    year: 2006,
                    income: 26.2,
                    expenses: 22.8
                }, {
                    year: 2007,
                    income: 30.1,
                    expenses: 23.9
                }, {
                    year: 2008,
                    income: 29.5,
                    expenses: 25.1
                }, {
                    year: 2009,
                    income: 24.6,
                    expenses: 25.0
                }];

您可以在this link中看到完整的示例。在我的第一次测试中，我使用了String.concat(anotherString)，但我向你保证它不舒服。那么有没有提供这种格式的java API？提前谢谢。

Answer 1

嗯，该格式和JSON之间的唯一区别似乎只需要从字符串中删除双引号。所以data.replaceAll（“\”“，”“）;应该完成这项工作。

但实际上，阅读该示例，它将接受有效的JSON。你应该尝试使用$ .ajax（）方法，看起来像：

AmCharts.ready(function () {$.ajax({
       url: '/mydata/',
       dataType: 'json',
       data: undefined,
       success: function(chartData) {
                // SERIAL CHART
                chart = new AmCharts.AmSerialChart();
                chart.dataProvider = chartData;
                chart.categoryField = "year";

                // AXES
                // category
                var categoryAxis = chart.categoryAxis;
                categoryAxis.gridAlpha = 0.1;
                categoryAxis.axisAlpha = 0;
                categoryAxis.gridPosition = "start";

                // value
                var valueAxis = new AmCharts.ValueAxis();
                valueAxis.stackType = "regular";
                valueAxis.gridAlpha = 0.1;
                valueAxis.axisAlpha = 0;
                chart.addValueAxis(valueAxis);

                // GRAPHS
                // first graph    
                var graph = new AmCharts.AmGraph();
                graph.title = "Europe";
                graph.labelText = "[[value]]";
                graph.valueField = "europe";
                graph.type = "column";
                graph.lineAlpha = 0;
                graph.fillAlphas = 1;
                graph.lineColor = "#C72C95";
                chart.addGraph(graph);

                // second graph              
                graph = new AmCharts.AmGraph();
                graph.title = "North America";
                graph.labelText = "[[value]]";
                graph.valueField = "namerica";
                graph.type = "column";
                graph.lineAlpha = 0;
                graph.fillAlphas = 1;
                graph.lineColor = "#D8E0BD";
                chart.addGraph(graph);

                // third graph                              
                graph = new AmCharts.AmGraph();
                graph.title = "Asia-Pacific";
                graph.labelText = "[[value]]";
                graph.valueField = "asia";
                graph.type = "column";
                graph.lineAlpha = 0;
                graph.fillAlphas = 1;
                graph.lineColor = "#B3DBD4";
                chart.addGraph(graph);

                // LEGEND                  
                var legend = new AmCharts.AmLegend();
                chart.addLegend(legend);

                // WRITE
                chart.write("chartdiv");
            });
       }
     });

（对不起，我远没有善于写javascript，但我认为这个想法是存在的）。此外，也许amCharts的API可以直接检查本地URL。然后，您只需将JSON数据路由为REST调用。

Answer 2

查看此API的数据相关博客页面

http://blog.amcharts.com/2011/03/amcharts-javascript-tutorials-part-2.html

我认为本教程讲述了处理此API中数据的所有细节，包含大量示例和代码片段

Answer 3

解决方案很简单：

var chartData = eval（json_data）;

最好的问候

将数据格式化为JSON格式

3 个答案: