elementui table表格 多对一设计 合并

<template>
    <BoxCorner>
        <el-container style="border: 1px none #04c6ee;height: 100%">
            <el-main>
                <el-container style="border: 1px none #04c6ee;height: 100%;background-color: white">
                    <el-header class="header-book">
                        <div style="padding: 10px 10px; 500px;float: right;">
                            <el-input placeholder="请输入遥感图斑编号"
                                      class="input-with-select">
                                <el-button slot="append" icon="el-icon-search" size="mini"
                                           style="background-color: #f99d42;color: #ffffff;border-radius: 0;"
                                >搜索
                                </el-button>
                                <el-button slot="append" icon="el-icon-close" size="mini" style="border-radius: 0;"
                                >重置
                                </el-button>
                            </el-input>
                        </div>
                    </el-header>
                    <el-main class="main-book">
                        <el-table
                                :span-method="arraySpanMethod"
                                :data="tableData"
                                height="750px"
                                border highlight-current-row
                                style=" 100%">
                            <el-table-column
                                    type="index"
                                    width="50"
                                    align="center"
                                    label="序号">
                            </el-table-column>
                            <el-table-column
                                    prop="remoteSensingSpotNumber"
                                    :show-overflow-tooltip="true"
                                    align="left"
                                    label="遥感图斑编号">
                            </el-table-column>
                            <el-table-column
                                    prop="mineName"
                                    :show-overflow-tooltip="true"
                                    align="left"
                                    width="250"
                                    label="矿山名称">
                            </el-table-column>
                            <el-table-column
                                    prop="repairMeasures"
                                    align="center"
                                    :show-overflow-tooltip="true"
                                    label="修复措施">
                            </el-table-column>
                            <el-table-column
                                    align="center"
                                    label="操作">
                                <template slot-scope="scope">
                                    <el-upload
                                            action="/mine-api/parse/save"
                                            :show-file-list="false"
                                    >
                                        <el-button size="small" type="primary">上传资料</el-button>
                                    </el-upload>
                                </template>
                            </el-table-column>
                        </el-table>
                        <div style="text-align: right">
                            <el-pagination
                                    background
                                    :current-page="currentPage"
                                    :page-sizes="[15, 20, 50]"
                                    :page-size="100"
                                    layout="total, sizes, prev, pager, next, jumper"
                                    :total="tableTotal">
                            </el-pagination>
                        </div>
                    </el-main>
                </el-container>
            </el-main>
        </el-container>
    </BoxCorner>
</template>

<script lang="ts">
    import {checkPermission} from '@/utils/permission'
    import {Component, Vue, Ref, Watch} from 'vue-property-decorator';
    import {Action, Getter, Mutation} from 'vuex-class';
    @Component({
    })
    export default class JunGongIndex extends Vue {
        @Ref('regionTreeRef') readonly regionTreeRef!: any;
        @Ref('headerStatisticsRef') readonly headerStatisticsRef!: any;
        @Getter departs: any;
        @Getter wordbook: any;
        @Getter userInfo: any;
        loadingTable: boolean = false;
        tableTotal: number = 0;
        //跳转页数参数
        currentPage: number = 1;
        currentAction: string = '';
        tableData: any = [
            {
                remoteSensingSpotNumber:"SC5301132017000010",
                mineName:'昆明市五华区普吉杨俊石场',
                repairMeasures:'绿化修复',
            },
            {
                remoteSensingSpotNumber:"SC5301132017000011",
                mineName:'昆明市五华区普吉杨俊石场',
                repairMeasures:'工程治理',
            },
            {
                remoteSensingSpotNumber:"SC5301132017000012",
                mineName:'昆明市五华区普吉杨俊石场',
                repairMeasures:'自然修复',
            },
            {
                remoteSensingSpotNumber:"SC530102017000014",
                mineName:'昆明五华七先砖厂',
                repairMeasures:'自然修复',
            }
            ,
            {
                remoteSensingSpotNumber:"SC5301022017000015",
                mineName:'昆明五华七先砖厂',
                repairMeasures:'自然修复',
            },
            {
                remoteSensingSpotNumber:"SC5301022017000016",
                mineName:'昆明五华七先砖厂',
                repairMeasures:'绿化修复',
            }
            ,
            {
                remoteSensingSpotNumber:"SC5301022017000017",
                mineName:'昆明五华七先砖厂',
                repairMeasures:'自然修复',
            }
        ]

        needMergeArr: any=['id', 'mineName']
        rowMergeArrs:any= {}
        created() {
            this.rowMergeArrs = this.rowMergeHandle(this.needMergeArr, this.tableData); // 处理数据
        }


        rowMergeHandle(arr:any, data:any) {
            if (!Array.isArray(arr) && !arr.length) return false;
            if (!Array.isArray(data) && !data.length) return false;
            let needMerge :any= {};
            arr.forEach((i:any) => {
                needMerge[i] = {
                    rowArr: [],
                    rowMergeNum: 0
                };
                data.forEach((item:any, index:any) => {
                    if (index === 0) {
                        needMerge[i].rowArr.push(1);
                        needMerge[i].rowMergeNum = 0;
                    } else {
                        if (item[i] === data[index - 1][i]) {
                            needMerge[i].rowArr[needMerge[i].rowMergeNum] += 1;
                            needMerge[i].rowArr.push(0);
                        } else {
                            needMerge[i].rowArr.push(1);
                            needMerge[i].rowMergeNum = index;
                        }
                    }
                });
            });
            return needMerge;
        }
        arraySpanMethod({ row, column, rowIndex, columnIndex }:any) {if (column.property === 'mineName') return this.mergeAction('mineName', rowIndex, column);
        }
        mergeAction(val:any, rowIndex:any, colData:any) {
            let _row = this.rowMergeArrs[val].rowArr[rowIndex];
            let _col = _row > 0 ? 1 : 0;
            return [_row, _col];
        }

    }
</script>

<style scoped lang="scss">
    /deep/ .el-input__inner {
        height: 30px;
    }
    /deep/ .el-upload--text{
        border: none;
        height: 34px;
        color: #36a3f7;
    }
</style>