Echarts从后台获取数据展示折线图(堆叠图)

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Echarts从后台获取数据展示折线图(堆叠图)

#Echarts从后台获取数据展示折线图(堆叠图)| 来源: 网络整理| 查看: 265

Echarts从后台获取数据展示折线图(堆叠图) 这里主要展示的是折线图,主要是涉及到两种订单的比较这里写图片描述 首先我们要从数据库中获取所要展示的数据,这里我只进行controller的讲解

@RequestMapping("/ecOrderCount") public void ecOrderStatisticsCount(HttpServletResponse response,String time) throws ParseException{ DateFormat format1 = new SimpleDateFormat("yyyy-MM-dd"); EcOrderCount ecOrderCounts=ecOrderStatisticsService.getCountsByTime(format1.parse(time)); //图例 List legend = new ArrayList(Arrays.asList(new String[] { "全部订单","支付订单"})); //横坐标的值 List axis = new ArrayList( Arrays.asList(new String[] {"1:00","2:00","3:00","4:00","5:00","6:00","7:00","8:00","9:00","10:00","11:00","12:00","13:00","14:00","15:00","16:00","17:00","18:00","19:00","20:00","21:00","22:00","23:00","24:00"})); //纵坐标的值(每个时间段对应的量) List series = new ArrayList(); series.add(new Series("全部订单","line",new ArrayList(Arrays.asList(ecOrderCounts.getOrdercount())))); series.add(new Series("支付订单","line",new ArrayList(Arrays.asList(ecOrderCounts.getPaycount())))); Echarts echarts = new Echarts(legend, axis, series); response.setContentType("text/html;charset=utf-8"); PrintWriter out; try{ out = response.getWriter(); String jsonstr = JSON.toJSONString(echarts); System.out.println("str:"+jsonstr); out.write(jsonstr); out.flush(); out.close(); }catch(IOException e) { e.printStackTrace(); } }

接下来就是js以及html了 html:这里使用了easyui的框架,记得导入easyui需要的js和css

时间: 查询

js:

function search() { var time = $("#time").datebox("getValue"); if(time.length==0){ commonUtil.topCenter('请选择时间'); return; } $("#applyList").html("数据加载中..."); // 基于准备好的dom,初始化echarts实例 var myChart = echarts.init(document.getElementById('main')); var option = { title: { text: '日订单数量趋势图' }, tooltip: { trigger: 'axis' }, legend : { data : [] }, grid: { left: '3%', right: '4%', bottom: '3%', containLabel: true }, toolbox: { feature: { saveAsImage: {} } }, xAxis : [ { type : 'category', boundaryGap: false, data : [] } ], yAxis : [ { type : 'value' } ], series : [] }; // 使用刚指定的配置项和数据显示图表。 $.ajax({ type : "POST", url :projectPath + '/ecOrderStatistics/ecOrderCount?time='+time, dataType : "json", success : function(result) { //将从后台接收的json字符串转换成json对象 var jsonobj = eval(result); //给图标标题赋值 option.legend.data = jsonobj.legend; //读取横坐标值 option.xAxis[0].data = jsonobj.axis; var series_arr = jsonobj.series; //驱动图表生成的数据内容,数组中每一项代表一个系列的特殊选项及数据 for(var i = 0; i < series_arr.length; i++) { option.series[i] = result.series[i]; } //过渡控制,隐藏loading(读取中) myChart.hideLoading(); // 为echarts对象加载数据 myChart.setOption(option); } }); myChart.setOption(option); }


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