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                #### echart-helper是什么? echart-helper是一款echarts輔助開發插件,其本身并無什么復雜之處,僅是一種開發思路,能夠幫助開發者快速構建echart圖表,及最大化相關配置復用。 后端開發中獲取到的一條記錄信息,或者一組list數組并不能直接為 echart 所用,但通過 echart-helper 就可以將后端簡易查詢到的結果直接轉換成圖表所需要的數據格式,極大的提高了開發效率。 同時,前端開發中也可以使用 echart-helper 實現echart相關代碼的復用,及整體化配置。 #### 實現原理 * 將 echarts 各類通用配置預先放入插件中,減少后續相關配置信息的寫入,同時,任意內容均可通過配置進行覆蓋(可完全復制使用echarts原生格式)。 * 將后端數據自動格式化成 echarts 所需格式,減少數據再次整理的過程。 #### Git地址 Website: https://gitee.com/qw_xingzhe Repo: https://gitee.com/qw_xingzhe/ECharts-Helper Issues: https://gitee.com/qw_xingzhe/ECharts-Helper/issues #### 實現功能 * html標簽綁定數據,渲染圖表 * js調用生成圖表 * 異步請求url渲染圖表 * 配置使用主題 * 可自定義基礎配置模版 #### echart-helper 及 echart 原生寫法對比(以餅圖為例) echart 原生代碼實現 ~~~ <!DOCTYPE html> <html style="height: 100%"> <head> <meta charset="utf-8"> </head> <body style="height: 100%; margin: 0"> <div id="container" style="height: 100%"></div> <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/echarts.min.js"></script> <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts-gl/echarts-gl.min.js"></script> <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts-stat/ecStat.min.js"></script> <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/extension/dataTool.min.js"></script> <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/map/js/china.js"></script> <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/map/js/world.js"></script> <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=ZUONbpqGBsYGXNIYHicvbAbM"></script> <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/extension/bmap.min.js"></script> <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/simplex.js"></script> <script type="text/javascript"> var dom = document.getElementById("container"); var myChart = echarts.init(dom); var app = {}; option = null; option = { title : { text: '分組得分占比圖', //subtext: '純屬虛構', x:'center' }, tooltip : { trigger: 'item', formatter: "{a} <br/>{b} : {c} ({d}%)" }, legend: { orient: 'vertical', left: 'left', data: ['基礎知識','加分知識','未分組'] }, series : [ { name: '訪問來源', type: 'pie', radius : '55%', center: ['50%', '60%'], data:[ {value:11, name:'基礎知識'}, {value:12, name:'加分知識'}, {value:8, name:'未分組'} ], itemStyle: { emphasis: { shadowBlur: 10, shadowOffsetX: 0, shadowColor: 'rgba(0, 0, 0, 0.5)' } } } ] }; ; if (option && typeof option === "object") { myChart.setOption(option, true); } </script> </body> </html> ~~~ echart-helper 代碼實現 ~~~ <!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <title>echarts-helper</title> <style> label{line-height: 40px;} .echart-canvas{width: 100%; height: 430px; margin: 0 auto;} </style> </head> <body> <label>餅狀圖</label> <div class="echart-canvas" echart-data='[{"title":"基礎知識","get_score":11},{"title":"加分知識","get_score":12},{"title":"未分組","get_score":8}]' echart-config='{title:"分組得分占比圖",type:"pie",name_key:"title",value_key:"get_score"}'></div> </body> <script src="jquery-1.9.1.min.js"></script> <script src="echarts.min.js"></script> <script src="../echarts.helper.js"></script> <script> $('body').EChartHelper(); </script> </html> ~~~ 實現效果 ![](https://box.kancloud.cn/1302b3142038d33831ceae356f0d1e81_570x418.png)
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