即使在更新并刷新页面后也获得相同的xml文件

Question

首次加载1.data.xml

2.更新了data.xml的内容，甚至在页面刷新后其内容未更新

<script type="text/javascript">                 
                    $(document).ready(function(){                   
                        $.ajax({
                            type: "GET",                                
                            datatype: "xml",
                            cache: false,
                            error: function(jqXHR, textStatus, errorThrown) {
                                console.log('Error fetching xml : ' + errorThrown);
                            },
                            success: function(xml) {
                                var myChart = new JSChart('graph', 'bar');
                                myChart.setDataXML('data.xml');
                                myChart.setAxisNameX('Number of Days');
                                myChart.setAxisNameY('Number of Requests');
                                myChart.setAxisPaddingLeft(50);
                                myChart.setAxisNameColor('#655D5D');
                                myChart.setAxisNameFontSize(9);
                                /* myChart.setAxisValuesDecimals(1); */
                                myChart.setAxisValuesColor('#9C1919');
                                myChart.setTitle('Request Count Status');
                                 myChart.setTitleColor('#333');
                                myChart.setBarSpacingRatio(80);
                                /* myChart.setTitleColor('#B6C2D0'); */
                                /*  myChart.setGridColor('#5D5F5D'); */                                     
                                myChart.draw();
                            }
                        });                 
                 });                    
                </script>   

3.在服务器端（servlet），我还添加了以下代码

    // Set standard HTTP/1.1 no-cache headers.
    response.setHeader("Cache-Control", "private, no-store, no-cache, must-revalidate");

    // Set standard HTTP/1.0 no-cache header.
    response.setHeader("Pragma", "no-cache");