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jspページでjqplotチャートを使用 していますが、1つのjspページに6つ以上のチャートが表示されています

  • 私の問題は、チャートごとに、データベースからデータを要求し、結果を取得してチャートに表示する ajax リクエストがあることです...データベースに何千行もある場合、時間がかかります..

そのため、各divにローダー画像を配置し、そのdivのチャートのajaxリクエストが完了したときにチャートを表示したいと考えています。

  • 私は物事を試しましたが、成功しませんでした.. ajaxの開始時に( "#fl2").innerHtmlを介して画像を配置しようとしたとき、成功すると、その画像を削除するだけで、jqplotチャートにデータが入力されません

以下は、チャートがロードされている私のdivの1つです

私のjspページで

<div id="fl_3"style="height: 250px; width: 100%; margin: 50px auto 0"></div>

私のajax関数は次のとおりで、チャートを生成します

function PieChartsCampByOrg(pUrl, pLoaderPath) {
    // Setup the placeholder reference

    $.ajax({
        type : 'post',
        url : pUrl,
        success : function(rawdata) 
                                      {
                    var total = rawdata.split(";");
                    var totalcount = 0;
                    var txt = null;
                    for ( var i = 1; i < total.length - 1; i++) 
                                           {
                        if (i == 1) {
                            txt = "[{ label: \"" + total[i] + "\", data: "
                                    + total[i + 1] + "}";
                        }

                        else {
                            txt = txt + ",  { label: \"" + total[i]
                                    + "\", data: " + total[i + 1] + "}";                        }

                        totalcount = parseInt(totalcount) + parseInt(total[i + 1]);
                        i++;

                    }

                    txt = txt + "];";

                    if (totalcount == 0 || data == null || data == 'undefined') {
                        labeltext = "Total Campaign: "
                                + totalcount
                                + "  <br> Statistic Type: Campaigns By Organization";
                    } else {

                        labeltext = "Total Campaign: "
                                + totalcount
                                + "  <br> Statistic Type: Campaigns By Organization";
                    }

                    document.getElementById('piecamporg').innerHTML = labeltext;

                    elem = $('#fl_3');

                    var data = eval(txt);

                    // Setup the flot chart using our data
                    $.plot(elem, data, {
//
                        //
                         series: {
                                pie: {
                                    show: true,
                                    radius: 1,
                                    label: {
                                        show: false,
                                        radius: 2 / 3,
                                        formatter: function (label, series) {
                                            return '<div style="font-size:7pt;text-align:center;padding:2px;color:white;">' + label + '<br/>' + series.data[0][1] + '</div>';

                                        },
                                        threshold: 0.1
                                    }
                                }
                            },
                        grid : {
                            hoverable : true,
                            clickable : true
                        },
                        colors : [ "#245779", "#85c441", "#e88b2f", "#bb43f2",
                                "#3073a0", "#9C2323", "#183b52", "#8cc7e0",
                                "#64b4d5", "#3ca0ca", "#2d83a6", "#22637e",
                                "#174356", "#0c242e" ]
                    // colors: [ "#b4dbeb", "#8cc7e0", "#64b4d5", "#3ca0ca",
                    // "#2d83a6", "#22637e", "#174356", "#0c242e" ]
                    });
                    // Create a tooltip on our chart
                    elem.qtip({
                        prerender : true,
                        content : 'Loading...', // Use a loading message
                        // primarily
                        position : {
                            viewport : $(window), // Keep it visible within
                            // the window if possible
                            target : 'mouse', // Position it in relation to
                            // the mouse
                            adjust : {
                                x : 7
                            }
                        // ...but adjust it a bit so it doesn't overlap it.
                        },
                        show : true, // We'll show it programatically, so no
                        // show event is needed
                        style : {
                            classes : 'ui-tooltip-shadow ui-tooltip-tipsy',
                            tip : false
                        // Remove the default tip.
                        }
                    });

                    // Bind the plot hover
                    elem
                            .on(
                                    'plothover',
                                    function(event, pos, obj) {

                                        // Grab the API reference
                                        var self = $(this), api = $(this)
                                                .qtip(), previousPoint, content,

                                        // Setup a visually pleasing rounding
                                        // function
                                        round = function(x) {
                                            return Math.round(x * 1000) / 1000;
                                        };

                                        // If we weren't passed the item object,
                                        // hide the tooltip and remove cached
                                        // point data
                                        if (!obj) {
                                            api.cache.point = false;
                                            return api.hide(event);
                                        }

                                        // Proceed only if the data point has
                                        // changed
                                        previousPoint = api.cache.point;
                                        if (previousPoint !== obj.seriesIndex) {
                                            percent = parseFloat(
                                                    obj.series.percent)
                                                    .toFixed(2);
                                            // Update the cached point data
                                            api.cache.point = obj.seriesIndex;
                                            // Setup new content
                                            content = obj.series.label + ' ('
                                            + obj.series.data[0][1] + ')';

                                            // Update the tooltip content
                                            api.set('content.text', content);
                                            // Make sure we don't get problems
                                            // with animations
                                            // api.elements.tooltip.stop(1, 1);
                                            // Show the tooltip, passing the
                                            // coordinates
                                            api.show(pos);
                                        }
                                    });

                }
            });

}

上記は私のajax呼び出しです...非常に複雑な機能ですが、ajaxが成功するまでローダーを表示したいだけです...簡単な解決策があるはずですが、ajaxにあまり精通していません。 .

4

1 に答える 1

2

ローダー イメージを表示するには、次の html 構造を使用できます。

<style type="text/css">
  .loader_Image{
    background-image: url('Path_to_loaderImage\loader.gif');
    width:100%;
    height:100%;
 }
</style>    

<div id="chart_Container" style="width:100%;height:100%;">   
  <div id="fl_3"style="height: 250px; width: 100%; margin: 50px auto 0"></div>
  <div class="loader_Image"/>  
</div>

<script type="text/javascript>
  $(document).ready(function(){
    $('.loader_Image').hide();

  });

 function PieChartsCampByOrg(pUrl, pLoaderPath) {
  // Setup the placeholder reference
  $('.loader_Image').show();
  $('#fl_3').hide();

  $.ajax({
    type : 'post',
    url : pUrl,
    success : function(rawdata) 
  {
           $('.loader_Image').hide();
           $('#fl_3').show();
                var total = rawdata.split(";");
                var totalcount = 0;
                var txt = null;
                for ( var i = 1; i < total.length - 1; i++) 
                                       {
                    if (i == 1) {
                        txt = "[{ label: \"" + total[i] + "\", data: "
                                + total[i + 1] + "}";
                    }

                    else {
                        txt = txt + ",  { label: \"" + total[i]
                                + "\", data: " + total[i + 1] + "}";                        }

                    totalcount = parseInt(totalcount) + parseInt(total[i + 1]);
                    i++;

                }

                txt = txt + "];";

                if (totalcount == 0 || data == null || data == 'undefined') {
                    labeltext = "Total Campaign: "
                            + totalcount
                            + "  <br> Statistic Type: Campaigns By Organization";
                } else {

                    labeltext = "Total Campaign: "
                            + totalcount
                            + "  <br> Statistic Type: Campaigns By Organization";
                }

                document.getElementById('piecamporg').innerHTML = labeltext;

                elem = $('#fl_3');

                var data = eval(txt);

                // Setup the flot chart using our data
                $.plot(elem, data, {
                  //
                    //
                     series: {
                            pie: {
                                show: true,
                                radius: 1,
                                label: {
                                    show: false,
                                    radius: 2 / 3,
                                    formatter: function (label, series) {
                                        return '<div style="font-size:7pt;text-align:center;padding:2px;color:white;">' + label + '<br/>' + series.data[0][1] + '</div>';

                                    },
                                    threshold: 0.1
                                }
                            }
                        },
                    grid : {
                        hoverable : true,
                        clickable : true
                    },
                    colors : [ "#245779", "#85c441", "#e88b2f", "#bb43f2",
                            "#3073a0", "#9C2323", "#183b52", "#8cc7e0",
                            "#64b4d5", "#3ca0ca", "#2d83a6", "#22637e",
                            "#174356", "#0c242e" ]
                // colors: [ "#b4dbeb", "#8cc7e0", "#64b4d5", "#3ca0ca",
                // "#2d83a6", "#22637e", "#174356", "#0c242e" ]
                });
                // Create a tooltip on our chart
                elem.qtip({
                    prerender : true,
                    content : 'Loading...', // Use a loading message
                    // primarily
                    position : {
                        viewport : $(window), // Keep it visible within
                        // the window if possible
                        target : 'mouse', // Position it in relation to
                        // the mouse
                        adjust : {
                            x : 7
                        }
                    // ...but adjust it a bit so it doesn't overlap it.
                    },
                    show : true, // We'll show it programatically, so no
                    // show event is needed
                    style : {
                        classes : 'ui-tooltip-shadow ui-tooltip-tipsy',
                        tip : false
                    // Remove the default tip.
                    }
                });

                // Bind the plot hover
                elem
                        .on(
                                'plothover',
                                function(event, pos, obj) {

                                    // Grab the API reference
                                    var self = $(this), api = $(this)
                                            .qtip(), previousPoint, content,

                                    // Setup a visually pleasing rounding
                                    // function
                                    round = function(x) {
                                        return Math.round(x * 1000) / 1000;
                                    };

                                    // If we weren't passed the item object,
                                    // hide the tooltip and remove cached
                                    // point data
                                    if (!obj) {
                                        api.cache.point = false;
                                        return api.hide(event);
                                    }

                                    // Proceed only if the data point has
                                    // changed
                                    previousPoint = api.cache.point;
                                    if (previousPoint !== obj.seriesIndex) {
                                        percent = parseFloat(
                                                obj.series.percent)
                                                .toFixed(2);
                                        // Update the cached point data
                                        api.cache.point = obj.seriesIndex;
                                        // Setup new content
                                        content = obj.series.label + ' ('
                                        + obj.series.data[0][1] + ')';

                                        // Update the tooltip content
                                        api.set('content.text', content);
                                        // Make sure we don't get problems
                                        // with animations
                                        // api.elements.tooltip.stop(1, 1);
                                        // Show the tooltip, passing the
                                        // coordinates
                                        api.show(pos);
                                    }
                                });

            }
        });
    }
  </script>
于 2013-08-23T05:12:39.550 に答える