在php中使用FusionCharts
作者:zccst
数据格式有setDataURL(srcUrl)和setJSONData(jsonStr)两种
用法在官方demo和document都有详细解释。
在实际需求中,直接参考官方资料还是挺方便的。
fileUrl = '../path/to/xx.swf'; //swf文件路径
srcUrl = 'http://url?a=1&b=2'; //向后端请求的url。
一、setDataURL(srcUrl)方式
//前端:<div id="outsource_sta_1"></div>var myChart = new FusionCharts(fileUrl, "myChartId", "600", "500");myChart.setDataURL(srcUrl);myChart.render("outsource_sta_1");//后端:$xml = "<chart palette=\"2\" caption=\"平均处理时间统计\" xAxisName=\"机型\" yAxisName=\"平均处理时间\" showValues=\"1\" decimals=\"2\" formatNumberScale=\"0\" useRoundEdges=\"1\" showPercentValues='1' >";for($i = 1; $i < 6; $i++){ $data[] = array('label'=>'m'.$i, 'value'=>$i); $xml .= "<set label=\"'m'.$i\" value=\"$i\" />";}$xml .= "</chart>";print $xml;
批注1:本质是data.xml,可以直接丢一个data.xml格式的文件,也可以是一个url,该url的返回值是xml格式的数据。
批注2:有可能乱码。在yii中使用会乱码。但在extjs中没有。
二、setJSONData(jsonStr)
又分两种情况:
第一种情况是new FusionCharts(...)在前端,仅jsonStr从后端获取
例如:
//前端:<div id="outsource_sta_1"></div>$.post(srcUrl,null,function(r){ var myChart = new FusionCharts(fileUrl, "myChartId", "600", "500"); myChart.setJSONData(r); myChart.render("outsource_sta_1");},'json');//后端:$data = array();for($i = 1; $i < 6; $i++){ $data[] = array('label'=>'m'.$i, 'value'=>$i);}$chart = array();$chart['palette'] = 2;$chart['caption'] = "平均处理时间统计";$chart['xAxisName'] = "机型";$chart['yAxisName'] = "平均处理时间";$chart['showValues'] = 1;$chart['decimals'] = 2;$chart['formatNumberScale'] = 0;$chart['useRoundEdges'] = 1;$chart['showPercentValues'] = 1;$ret = array('chart'=>$chart,'data'=>$data);print json_encode($ret);
批注:$.post()的返回值是'json'类型。
第二种情况是所有都在后端,前端直接$(".outsource_content").html(r)
//前端:<div id="outsource_sta_1"></div>$.post(srcUrl,null,function(r){ $(".outsource_content").html(r);},'html');//后端:$data = array();for($i = 1; $i < 6; $i++){ $data[] = array('label'=>'m'.$i, 'value'=>$i);}$chart = array();$chart['palette'] = 2;$chart['caption'] = "平均处理时间统计";$chart['xAxisName'] = "机型";$chart['yAxisName'] = "平均处理时间";$chart['showValues'] = 1;$chart['decimals'] = 2;$chart['formatNumberScale'] = 0;$chart['useRoundEdges'] = 1;$chart['showPercentValues'] = 1;$ret = array('chart'=>$chart,'data'=>$data);$ret = json_encode($ret);$ret = self::generateChart('Column2D',$ret, 600,500, 'myid1', 'outsource_sta_1');$ret = self::wrapScript($ret);print $ret;public static function wrapScript($scripts){ $html = '<script type="text/javascript">'; $html.= "\n"; $html.= $scripts; $html.= "\n"; $html.= "</script>"; return $html;}public static function generateChart($type, $data, $width=0, $height=0, $myid='', $div_id=''){ if(!$type || !$data){ return ''; } $width = intval($width)?intval($width):800; $height = intval($height)?intval($height):400; $width = $width<600?600:$width; $height = $height<400?400:$height; $url = Yii::app()->baseUrl . "/resources/fusion/{$type}.swf"; $mychartid = $myid . 'a'; $script = <<<JAVASCRIPTvar {$myid} = new FusionCharts('{$url}','{$mychartid}', '{$width}','{$height}');{$myid}.setJSONData('{$data}');{$myid}.render('{$div_id}');JAVASCRIPT; return $script;}
批注1:$.post()的返回值是'html'类型。也可以测试其他类型是否可以正常显示。
但是不能是json格式。其本质是一些已经组建好的javascript,添加到制定div后就立即执行了。
批注2:针对第二种情况,也可以显示两个图表,(当然也可以显示多个)
后端在添加:
$ret2 = $ret;$ret2 = self::generateChart('Column2D', $ret2, 600,500,'myid2','outsource_sta_2');$ret2 = self::wrapScript($ret2);print $ret.$ret2;
三、setJSONData()的高级形式
高级的原因是:后端不只是传来渲染图表(fusionCharts)的完整js,还包括其他值,此时$.post()的返回值是'json'类型。
//前端:$.post(srcUrl,null,function(r){ console.log(r.v); $(".outsource_content").html(r.g);},'json');//后端://在上面的基础上$return = array('v'=>100,'g'=>$ret.$ret2);
批注1:100的位置可以放置任意负责的数据,而且还可以v1,v2等等。
批注2:此时$.post()的返回值是'json'类型。这个必须强调。

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