vue+element-ui动态生成多级表头的方法

vue+element

html配置：

<div id="table">{{tableData}}
<el-table :data="tabledata01" :span-method="tableSpanMethod" max-height="420">
<el-table-column v-for='item in tableConfig' :label="item.label" :prop='item.prop' :width='item.width' :key="item.id">
<el-table-column v-if='item.children||item.children.length>0' v-for="item1 in item.children"
:label="item1.label" :prop='item1.prop' :width='item1.width' :key="item1.id">
<el-table-column v-if='item1.children||item1.children.length>0' v-for="item2 in item1.children"
:label="item2.label" :prop='item2.prop' :width='item2.width' :key="item2.id">
</el-table-column>
</el-table-column>
</el-table-column>
</el-table>
</div>

data：

tableConfig:[
{id:100,label:'一级表头',prop:'',width:'',children:[
{id:110,label:'二级表头1',prop:'districtName',width:''},
{id:120,label:'二级表头2',prop:'timeDimension',width:''}
]},
{id:200,label:'一级表头',prop:'',width:'',children:[
{id:210,label:'二级表头',prop:'',width:'',children:[
{id:211,label:'三级表头',prop:'residentPopNum',width:'110'},
{id:212,label:'三级表头',prop:'residentPopDst',width:'110'}
]}
]},
{id:300,label:'一级表头',prop:'',width:'',children:[
{id:310,label:'二级表头',prop:'',width:'',children:[
{id:311,label:'三级表头',prop:'liveLandArea',width:'110'},
{id:312,label:'三级表头',prop:'liveLandDst',width:'110'}
],
},
{id:320,label:'二级表头',prop:'',width:'',children:[
{id:321,label:'三级表头(km²)',prop:'employmentLandArea',width:'110'},
{id:322,label:'三级表头',prop:'employmentLandDst',width:'110'}
],
}
]},
{id:400,label:'一级表头',prop:'',width:'',children:[
{id:410,label:'二级表头',prop:'',width:'',children:[
{id:411,label:'三级表头(个)',prop:'regionTrafficHubNum',width:'110'},
{id:412,label:'三级表头(人次/km²)',prop:'regionTrafficHubFlow',width:'140'}
],
},
{id:420,label:'二级表头',prop:'',width:'',children:[
{id:421,label:'三级表头(个)',prop:'highSpeedNum',width:'110'},
{id:422,label:'三级表头(个/km²)',prop:'highSpeedDst',width:'140'}
],
},{id:430,label:'二级表头',prop:'',width:'',children:[
{id:431,label:'三级表头(个)',prop:'trackTrafficSpotNum',width:'140'},
{id:432,label:'三级表头(个/km²)',prop:'trackTrafficSpotDst',width:'140'}
],
},
{id:440,label:'二级表头',prop:'',width:'',children:[
{id:441,label:'三级表头(km)',prop:'trackTrafficNetNum',width:'110'},
{id:442,label:'三级表头(km/km²)',prop:'trackTrafficNetDst',width:'140'}
],
},
{id:450,label:'二级表头',prop:'',width:'',children:[
{id:451,label:'三级表头(个)',prop:'cityTrafficHubNum',width:'110'},
{id:452,label:'三级表头(个/km²)',prop:'cityTrafficHubDst',width:'110'},
{id:453,label:'三级表头(人次/km²)',prop:'cityTrafficHubFlow',width:'140'}
],
},
{id:460,label:'二级表头',prop:'',width:'',children:[
{id:461,label:'三级表头(km)',prop:'cityTrafficNetNum',width:'110'},
{id:462,label:'三级表头',prop:'cityTrafficNetDst',width:'140'}
],
},
]},
{id:500,label:'一级表头',prop:'',width:'',children:[
{id:510,label:'二级表头',prop:'',width:'',children:[
{id:511,label:'三级表头(km²)',prop:'pubServeLandArea',width:'110'},
{id:512,label:'三级表头',prop:'pubServeLandDst',width:'110'}
],
},
{id:520,label:'二级表头',prop:'',width:'',children:[
{id:521,label:'三级表头(个)',prop:'hospitalResourcesNum',width:'110'},
{id:522,label:'三级表头(km²)',prop:'hospitalResourcesArea',width:'110'},
{id:523,label:'三级表头(个/km²)',prop:'hospitalResourcesDst',width:'110'}
],
},{id:530,label:'二级表头',prop:'',width:'',children:[
{id:531,label:'三级表头(个)',prop:'schoolResourcesNum',width:'110'},
{id:532,label:'三级表头(km²)',prop:'schoolResourcesArea',width:'110'},
{id:533,label:'三级表头(个/km²)',prop:'schoolResourcesDst',width:'110'}
],
},
{id:540,label:'二级表头',prop:'',width:'',children:[
{id:541,label:'三级表头(个)',prop:'humanResourcesNum',width:'110'},
{id:542,label:'三级表头(个/km²)',prop:'humanResourcesDst',width:'110'}
],
},
{id:550,label:'二级表头',prop:'',width:'',children:[
{id:551,label:'三级表头(个)',prop:'businessResourcesNum',width:'110'},
{id:552,label:'三级表头(个/km²)',prop:'businessResourcesDst',width:'110'}
],
},
{id:560,label:'二级表头',prop:'',width:'',children:[
{id:561,label:'三级表头(个)',prop:'environResourcesNum',width:'110'},
{id:562,label:'三级表头(个/km²)',prop:'environResourcesDst',width:'110'}
],
},
]},
{id:600,label:'一级表头',prop:'',width:'',children:[
{id:610,label:'二级表头',prop:'',width:'',children:[
{id:611,label:'三级表头(分)',prop:'populationScore',width:'110'},
],
},
{id:620,label:'二级表头',prop:'',width:'',children:[
{id:621,label:'三级表头(分)',prop:'landScore',width:'110'},
],
},{id:630,label:'二级表头',prop:'',width:'',children:[
{id:631,label:'三级表头(分)',prop:'trafficScore',width:'110'},
],
},
{id:640,label:'二级表头',prop:'',width:'',children:[
{id:641,label:'三级表头(分)',prop:'communalFacilitiesScore',width:'110'},
],
},
{id:650,label:'二级表头',prop:'',width:'',children:[
{id:651,label:'三级表头(分)',prop:'modelScore',width:'110'},
],
}
]},
],

注：动态生成表头必须配置"key"

view：

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