对比数据导出

src/views/water/lake/statistic/special/component/comparison.vue

@@ -90,6 +90,8 @@ export default {
         //   ],
         // },
       ],
+      //扁平化表头，用于导出的数据组装
+      sColumns:[],
       palceOptions: [],
       areaOptions: [],
       regionLevelOptions: [],
@@ -136,7 +138,7 @@ export default {
     filterData(data){
       let filterData = []
       let addCloumns = []
-
+      let addSCloumns = []
       if(Array.isArray(data)){
 
         data.forEach((item,index)=>{
@@ -155,10 +157,17 @@ export default {
 
             
               if(i==0 && index==0){
-                  addCloumns[index] = {}
+                addCloumns[index] = {}
                 addCloumns[index].title = single.year
                 addCloumns[index].align = 'center'
 
+                  addSCloumns = [
+                    {dataIndex: `waterType${i}`},
+                    { dataIndex: `comprehensiveNutrition${i}`},
+                    {dataIndex: `level${i}`},
+                    {dataIndex: `overflow${i}`}
+                  ]
+
                  addCloumns[index].children = [
                   { title: "水质类别", dataIndex: `waterType${i}`, sorter: true,align:'center' },
                   { title: "综合营养状态指数", dataIndex: `comprehensiveNutrition${i}`, sorter: true,align:'center' },
@@ -182,6 +191,11 @@ export default {
         { title: "点位名称", dataIndex: "pointName", sorter: true},
         ...addCloumns
       ]
+      this.sColumns = [
+        {dataIndex: "type"},
+        {dataIndex: "pointName"},
+        ...addSCloumns
+      ]
       this.datasource = filterData;
 
     },
@@ -203,10 +217,28 @@ export default {
     exportFile() {
       const columns = this.columns;
       const arr = [];
-      const th = columns.map((item) => item.title);
-      arr.push(th);
+      // const th = columns.map((item) => item.title);
+      // arr.push(th);
+
+      let th1 = []
+      let th2 = []
+      columns.forEach(item=>{
+        th1.push(item.title)
+       
+        if(Array.isArray(item.children) && item.children.length>0){
+          item.children.forEach(single=>{
+            th1.push('')
+            th2.push(single.title)
+          })
+        }else{
+            th2.push('')
+        }
+      })
+
+      arr.push(th1)
+      arr.push(th2)
       this.data.forEach((d) => {
-        const td = columns.map((item) => d[item.dataIndex]);
+        const td = this.sColumns.map((item) => d[item.dataIndex]);
         arr.push(td);
       });
       let sheet = XLSX.utils.aoa_to_sheet(arr);