VUE2.0+Element-UI+Echarts封装的组件实例

本文用Vue2.0+elementUI的panel组件和table组件+echarts的柱状图和折线图实现对结果的展示，实现了表格和图之间的切换和图和表之间的转置。

-html

js，panel组件的代码

var panelsVue = new Vue({
 el : "#panels",
 props : ["initData","indicators","mapOptions"],
 data: {
  rowOrColumn : false, //行列转换
  tableOrMap : true, //表和图切换
  tableAndMap : 3, //表和图同时显示
  mapInitOption : {
    title: {
     text: ''
    },
    tooltip : {
     trigger: 'axis'
    },
    toolbox: {
     show : true,
     feature : {
      mark : {show: true},
      dataView : {show: true, readOnly: false},
      magicType : {show: true, type: ['line', 'bar']},
      restore : {show: true},
      saveAsImage : {show: true}
     }
    },
    calculable : true,
    xAxis : [
     {
      type : 'category',
      boundaryGap : false
     }
    ],
    yAxis : [
     {
      type : 'value',
      axisLabel : {
formatter: '{value}'
      }
     }
    ]
   } //echarts 初始化参数
 },
 methods:{
  table : function(ev){
   if(this.rowOrColumn){
    this.indicators=this.listToRowObject(this.initData);
    this.mapOptions= this.listToColumnMap(this.initData);
    this.rowOrColumn=false;
   }else{
    this.indicators=this.listToColumnObject(this.initData);
    this.mapOptions= this.listToRowMap(this.initData);
    this.rowOrColumn=true;
   }
   for(var i=0;i

在使用上述组件过程中，发现当转置和表格切换之后里面全部都有变化，虽然可以做到单个panel组件自己实现转置和切换，但是发现如果数据太多会导致页面卡死，为了性能优化所以后来考虑采用多vue对象的形式（虽然我的思路是如果改变数据之后，vue将重新渲染html，导致页面卡死，但是后来仔细查资料之后，发现vue当数据改变之后会复用原来相同的html。但是由于时间的原因，也没试。大家可以考虑一下） 


采用多vue对象的形式之后的页面
html 



js,panel组件

var panelsVueArr = [];
var responseData;
function createHtml(respData){
 var indicatorResult = respData.indicatorResult; 
 var indicators = [];
 for(var j=0;j'+
   '',
   props : ['item','mapOption'],
   data: {
    indicator : indicators[i],
    rowOrColumn : false, // 行列转换
    tableOrMap : true, // 表和图切换
    tableAndMap : true, // 表和图同时显示
    indexid : i,
    mapInitOption : {
     title : {
      text : '',
      show : false
     },
     tooltip : {
      trigger : 'item',
      formatter: ''
     },
     legend : {
      data: [],
      right : 90, // 不要遮住右边的按钮
      left : 85,
      padding : 10
     },
     toolbox : {
      show : true,
      feature : {
mark : {
 show : true
},
magicType : {
 show : true,
 type : ['line', 'bar']
},
restore : {
 show : true
},
saveAsImage : {
 show : true
}
      }
     },
     grid : {
      y : '',
      y2 : '',
      containLabel : true
     },
     calculable : true,
     xAxis : [{
type : 'category',
boundaryGap : false,
axisLabel : {
 interval : 0
// rotate : 45
}
      }
     ],
     yAxis : [{
type : 'value',
axisLabel : {
 formatter : yAxisFormatter
}
      }
     ]
    } // echarts 初始化参数
   },
   methods : {
    transpose : function (ev) {
     if (this.rowOrColumn) {
      this.item = this.listToRowObject(this.indicator);
      this.mapOption = this.listToRowMap(this.indicator);
      this.rowOrColumn = false;
     } else {
      this.item = this.listToColumnObject(this.indicator);
      this.mapOption = this.listToColumnMap(this.indicator);
      this.rowOrColumn = true;
     }
      var indicatorName = this.mapOption.title.text;
      var myChart = echarts.init(document.getElementById([indicatorName]),rmp_theme);
      var grid = computerGrid(this.mapOption);
      myChart.resize({
width : grid.chartWidth+"px",
height : grid.chartHeight+"px"
      });
      myChart.setOption(this.mapOption);
     ev.stopPropagation();
    },
    listToColumnObject : function (ListAndList) {
     var x_y = column.text+"\"+row.text;
     var itemTable ={};
     var columnR = [];
     var tableData=[];
     for (var yIndex in ListAndList.indicatorData) {
      var obj = {};
      obj[x_y] = ListAndList.colKeys[yIndex];
      for (var xIndex in ListAndList.indicatorData[yIndex]) {
obj[ListAndList.rowKeys[xIndex]] =cellsDeal(ListAndList.indicatorData[yIndex][xIndex],ListAndList.indicatorUnit);
      }
      tableData.push(obj);
      }
     columnR.push(x_y);
     columnR = columnR.concat(ListAndList.rowKeys);
     itemTable["indicatorName"]=ListAndList.indicatorName;
     itemTable["tableData"] = tableData;
     itemTable["columns"]=columnR;
     itemTable["indicatorUnit"]=ListAndList.indicatorUnit;
     return itemTable;
    },
    listToRowObject : function (ListAndList) {
     var itemTable ={};
     var indicatorMap = {};
     var indicatorData=[];
     var y_x = row.text+"\"+column.text;
     var columnR = [];
     var tableData = [];
     columnR.push(y_x);
     columnR = columnR.concat(ListAndList.colKeys);
     indicatorData.push(ListAndList.rowKeys);
     indicatorData = indicatorData.concat(ListAndList.indicatorData);
     for (var k = 0; k < indicatorData[0].length; k++) {
      var aRow = {};
      for (var j = 0; j < indicatorData.length; j++) {
if(j==0){
 aRow[columnR[j]] = indicatorData[j][k];
}else{
 aRow[columnR[j]] = cellsDeal(indicatorData[j][k],ListAndList.indicatorUnit);
}
      }
      tableData.push(aRow);
      }
     itemTable["indicatorName"]=ListAndList.indicatorName;
     itemTable["tableData"] = tableData;
     itemTable["columns"]=columnR;
     itemTable["indicatorUnit"]=ListAndList.indicatorUnit;
     return itemTable;
    },
    listToColumnMap : function (ListAndList) {
     // var echartOption = echarts.getInstanceByDom(document.getElementById(ListAndList.indicatorName)).getOption();
     // var mapType = echarts.getInstanceByDom(document.getElementById(ListAndList.indicatorName)).getOption().series[0].type;
     var options = [];
      var sigleOption = {};
      sigleOption = this.mapInitOption; // 实现深复制
      var rowKeys = JSON.parse(JSON.stringify(ListAndList.rowKeys));
      rowKeys.pop();
      sigleOption.xAxis[0]["data"] = rowKeys;
      var indicatorName = ListAndList.indicatorName;
      sigleOption["title"]["text"] = indicatorName;
      var series = [];
      for (var k = 0; k < ListAndList.indicatorData.length - 1; k++) {
var sigleSerie = {
 type : 'line',
 barMaxWidth : 40,
 barMinHeight : 15
};
sigleSerie["name"] = ListAndList.colKeys[k];
var rows = JSON.parse(JSON.stringify(ListAndList.indicatorData[k]))
rows.pop();
sigleSerie["data"] = rows;
series.push(sigleSerie);
      }
      sigleOption["series"] = series;
      var legendData = JSON.parse(JSON.stringify(ListAndList.colKeys));
      legendData.pop();
      sigleOption.legend.data = legendData;
      var unitHandle=ListAndList.indicatorUnit;
      sigleOption.tooltip.formatter=function (params,ticket,callback) {
var myUnit =unitHandle;
var html = '行:'+params.seriesName +'
';
html+='列:'+params.name +'
';
var showValue = params.value;
if (typeof (showValue) == "undefined") {
 showValue = "NoData";
} else {
 // 图悬浮框 千分位+万 +单位
 if (!isNaN(showValue)) {
  if (showValue > 10000) {
   showValue = toThousands((showValue / 10000).toFixed(1)) + $.i18n.get('chart.wan')+ myUnit;
  }else{
   if(unitHandle=='%'){
    showValue=parseFloat(showValue)*100;
    showValue = showValue.toFixed(1) + myUnit;
   }else{
    showValue = showValue.toFixed(1) + myUnit;
   }
  }
 }
}
html+='值:'+showValue +'';
return html;
      };
     return sigleOption;
    },
    listToRowMap : function (ListAndList) {
     
     var options = [];
      var sigleOption = {};
      sigleOption = this.mapInitOption; // 实现深复制
      var colKeys = JSON.parse(JSON.stringify(ListAndList.colKeys));
      colKeys.pop();
      sigleOption.xAxis[0]["data"] = colKeys;
      var indicatorName = ListAndList.indicatorName;
      sigleOption["title"]["text"] = indicatorName;
      var series = [];
      for (var k = 0; k < ListAndList.rowKeys.length - 1; k++) { // 图TTL指标去掉
var sigleSerie = {
 type : 'line',
 barMaxWidth : 40,
 barMinHeight : 15
};
var x = [];
for (var z = 0; z < ListAndList.colKeys.length - 1; z++) {
 x.push(ListAndList.indicatorData[z][k]);
}
sigleSerie["name"] = ListAndList.rowKeys[k];
sigleSerie["data"] = x;
series.push(sigleSerie);
      }
      sigleOption["series"] = series;
      var legendData = JSON.parse(JSON.stringify(ListAndList.rowKeys));
      legendData.pop();
      sigleOption.legend.data = legendData;
      var unitHandle=ListAndList.indicatorUnit;
      sigleOption.tooltip.formatter=function (params,ticket,callback) {
var myUnit =unitHandle;
var color = params.color;
var html = '行:'+params.seriesName +'
';
html+='列:'+params.name +'
';
var showValue = params.value;
if (typeof (showValue) == "undefined") {
 showValue = "NoData";
} else {
 // 图悬浮框 千分位+万 +单位
 if (!isNaN(showValue)) {
  if (showValue > 10000) {
   showValue = toThousands((showValue / 10000).toFixed(1)) + $.i18n.get('chart.wan')+myUnit;
  }else{
   if(unitHandle=='%'){
    showValue=parseFloat(showValue)*100;
    showValue = showValue.toFixed(1) + myUnit;
   }else{
    showValue = showValue.toFixed(1) + myUnit;
   }
  }
 }
}
html+='值:'+showValue +'';
return html;
      };
     return sigleOption;
    },
    convert : function (ev) {
     if (this.tableAndMap) {
      this.tableAndMap = false;
     } else {
      this.tableAndMap = true;
     }
     var indicatorName = this.mapOption.title.text;
     var myChart = echarts.init(document.getElementById([indicatorName]),rmp_theme);
     var grid = computerGrid(this.mapOption);
     myChart.resize({
      width : grid.chartWidth+"px",
      height : grid.chartHeight+"px"
     });
     myChart.setOption(this.mapOption);
     ev.stopPropagation();
    },
    exportExcel : function (ev) {
     var listAndList = JSON.parse(JSON.stringify(this.indicator));
     var rowTd = listAndList.rowKeys;
     var excellData = [];
     rowTd.splice(0, 0, listAndList.indicatorName+'('+listAndList.indicatorUnit+')');
     excellData.push(rowTd);
     for (var i = 0; i < listAndList.indicatorData.length; i++) {
      for(var j=0;j 10000) {
   // 千分位 + 万
   text = toThousands((value / 10000).toFixed(1)) + $.i18n.get('chart.wan');
  }
 }
 if (value.formatter) {
  text = value.formatter.replace("{value}", text);
 }
 return text;
}
//格式化tooltip
var tooltipFormatter = function (params,ticket,callback) {
 console.log(params);
 var color = params.color;
 var html = '行:'+params.seriesName +'';
 html+='列:'+params.name +'';
 var showValue = params.value;
 if (typeof (showValue) == "undefined") {
  showValue = "NoData";
 } else {
  // 图悬浮框 千分位+万 +单位
  if (!isNaN(showValue)) {
   if (showValue > 10000||showValue<-10000) {
    showValue = toThousands((showValue / 10000).toFixed(1)) + $.i18n.get('chart.wan');
   }else{
    showValue=parseFloat(showValue)*100;
    showValue = showValue.toFixed(1) + unitHandle();
   }
  }
 }
 html+='值:'+showValue +'';
 console.log(html);
 return html;
}
// 数字格式处理 1,000,000
function toThousands(num) {
 if (typeof (num) == 'undefined') {
  num = ""
 }
 num = num + '', result = '';
 if (num.indexOf('%') > -1) {
  return num;
 }
 var s = "";
 if (num.indexOf('.') > -1) {
  s = num.substring(num.indexOf('.'), num.length);
  num = num.substring(0, num.indexOf('.'));
 }
 var n = false;
 if (num.indexOf('-') > -1) {
  num = num.substring(1);
  n = true;
 }
 while (num.length > 3) {
  result = ',' + num.slice(-3) + result;
  num = num.slice(0, num.length - 3);
 }
 if (num != undefined) {
  result = num + result;
 }
 if (n) {
  result = "-" + result;
 }
 if(s=='.0'){
  return result;
 }
 return result + s;
}
// 千分位与单位处理
function cellsDeal(num,unit) {
 if (typeof (num) == 'undefined') {
  num = "";
 }
 if(num===''){
  return num;
 }
 num = num + '', result = '';
 if (unit=='%') {
  num=parseFloat(num)*100;
  num = num.toFixed(1) + '';
  if(num.indexOf(".")!=-1){
   return num.substring(0,num.indexOf(".")+2)+"%";
  }else{
   return num+"%";
  }
 }
 var s = "";
 if (num.indexOf('.') > -1) {
  num=parseFloat(num).toFixed(1);
  s = num.substring(num.indexOf('.'), num.length); //小数位
  num = num.substring(0, num.indexOf('.')); //整数位
 }
 var n = false;
 if (num.indexOf('-') > -1) {
  num = num.substring(1);
  n = true;
 }
 while (num.length > 3) {
  result = ',' + num.slice(-3) + result;
  num = num.slice(0, num.length - 3);
 }
 if (num != undefined) {
  result = num + result;
 }
 if (n) {
  result = "-" + result;
 }
 if(unit.indexOf("/")!=-1){
  s=s.substring(0,2);
 }else{
  s="";
 }
 return result + s;
}

function computerGrid(options){
 // 图宽度 默认
 var chartWidth = 810;
 // 图例占宽度比
 var legendWidth = chartWidth * 0.8;
 // 图高度默认
 var chartHeight = 250;
 // 图中grid离容器下边距高度默认
 var bottomHeight = 25;
 // 图中grid离容器上边距高度默认
 var topHeight = 40;
 // 根据x轴刻度数量 算宽度，如果超过默认 则使用计算值
 if (options.xAxis[0].data.length * 30 - chartWidth > 0) {
  chartWidth = options.xAxis[0].data.length * 30;
 }
 // x轴刻度 最长的长度值
 var maxLength = 0;
 var legendCount = 8;
 if (options.xAxis[0].data.length > legendCount) {
  options.xAxis[0].data.forEach(function(val) {
   if (maxLength < val.length) {
    maxLength = val.length;
    if (/[^u0000-u00FF]/.test(val)) {
     // 计算图中grid离容器下边距高度
     bottomHeight = maxLength * 14;
    } else {
     // 计算图中grid离容器下边距高度
     bottomHeight = maxLength * 13.5;
    }
   }
  });
 }
 var tmpWidth = 0;
 options.legend.data.forEach(function(val) {
  if (/[^u0000-u00FF]/.test(val)) {
   tmpWidth += val.length * 22 + 30;
  } else {
   tmpWidth += val.length * 11 + 30;
  }
 });
 var rowNum = tmpWidth / legendWidth;
 // 根据图例算 图中grid离容器上边距高度
 if (rowNum > 1) {
  topHeight += (rowNum - 1) * 23;
 }
 chartHeight += bottomHeight + topHeight;
 options.legend['width'] = legendWidth;
 options.grid.y2 = bottomHeight;
 options.grid.y = topHeight;
 if(chartWidth!='810'){
  options.grid["x"]=40;
 }
 var columnAndRow = ['startProvince','startArea']; //始发省份和地区默认X轴旋转45度
 if(options.xAxis[0].data[0].match('^(\d+)\+(\d+)')!=null||columnAndRow.indexOf(column.code)!=-1||columnAndRow.indexOf(row.code)!=-1){
  options.xAxis[0].axisLabel['rotate']=45;
 }else{
  options.xAxis[0].axisLabel['rotate']=0;
 }
 return {chartHeight:chartHeight,chartWidth:chartWidth};
}

上述代码实现了 echart图数据的格式化，和对数据的自适应。修改为上述方式之后发现性能提高了不止一个数量级。
以上这篇VUE2.0+Element-UI+Echarts封装的组件实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持考高分网。