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el-table表格处理同列相同数据进行合并

html

el-table中使用 –>:span-method=”objectSpanMethod”方法

<el-table
            ref="tableRef"
            :data="tableData"
            tooltip-effect="dark"
            :span-method="objectSpanMethod"
            style="width: 100%; margin-top: 16px"
          >
            <el-table-column align="center" prop="data" label="执行日期">
            </el-table-column>

            <el-table-column align="center" prop="time" label="执行时间">
            </el-table-column>
            <el-table-column align="center" prop="taskName" label="任务名称">
            </el-table-column>
            <el-table-column
              align="center"
              prop="progressStatus"
              label="任务进度状态"
            >
            </el-table-column>
            <el-table-column
              align="center"
              prop="resultStatue"
              label="任务结果状态"
            >
            </el-table-column>
            <el-table-column align="center" label="操作" width="450">
              <template slot-scope="scope">
                <div class="table-btns">
                  <div class="btn-red cursor-pointer">暂停</div>
                  <div class="btn-red cursor-pointer">终止</div>
                </div>
              </template>
            </el-table-column>
          </el-table>

data数据

//表格数据
      tableData: [
        {
          data: "2022-01-07",
          time: "15:56:08",
          taskName: "任务20210903",
          progressStatus: "0",
          resultStatue: "0",
        },
        {
          data: "2022-01-07",
          time: "15:56:08",
          taskName: "任务20210903",
          progressStatus: "1",
          resultStatue: "1",
        },
        {
          data: "2022-01-07",
          time: "15:56:08",
          taskName: "任务20210903",
          progressStatus: "2",
          resultStatue: "1",
        },
        {
          data: "2022-01-08",
          time: "15:56:08",
          taskName: "任务20210903",
          progressStatus: "3",
          resultStatue: "0",
        },
        {
          data: "2022-01-09",
          time: "15:56:08",
          taskName: "任务20210903",
          progressStatus: "4",
          resultStatue: "1",
        },
        {
          data: "2022-01-09",
          time: "15:56:08",
          taskName: "任务20210903",
          progressStatus: "5",
          resultStatue: "1",
        },
      ],

methods内部处理

/**表格合并单元格 */
    objectSpanMethod({ row, column, rowIndex, columnIndex }) {
     // 判断哪一列 如果需要处理多了 使用 || 进行处理即可
      if (columnIndex === 0) {
        const _row = this.flitterData(this.tableData).one[rowIndex];
        const _col = _row > 0 ? 1 : 0;
        return {
          rowspan: _row,
          colspan: _col,
        };
      }
    },
    /**合并表格的第一列，处理表格数据 */
    flitterData(arr) {
      let spanOneArr = [];
      let concatOne = 0;
      arr.forEach((item, index) => {
        console.log(item, index);
        if (index === 0) {
          spanOneArr.push(1);
        } else {
        //注意这里的data是表格绑定的字段，根据自己的需求来改
          if (item.data === arr[index - 1].data) {
            //第一列需合并相同内容的判断条件
            spanOneArr[concatOne] += 1;
            spanOneArr.push(0);
          } else {
            spanOneArr.push(1);
            concatOne = index;
          }
        }
      });
      return {
        one: spanOneArr,
      };
    },