<el-tree-selectplaceholder="请选择业务代码":props="{ label: 'transactionName', value: 'transactionCode' }"v-model="item.transactionCode"node-key="id":data="transactionList":default-expanded-keys="[item.transactionCode]":default-checked-keys="[item.transactionCode]":filter-node-method="filterNodeMethod"@node-click="(data) => addSelect(data, index)"style="width: 320px"filterabledefault-expand-allhighlight-currentcheck-strictly><template #default="{ data }">{{ data.transactionName }}<span style="color: gray; text-align: right">{{ data.transactionCode }}</span></template></el-tree-select>

1、后端返回树形结构不是label、value解决方法如下：

 :props="{ label: 'transactionName', value: 'transactionCode' }"

2、获取到当前选中项的label信息：

@node-click="(data) => addSelect(data, index)"

  let addSelect = (data, index) => {formModel.transactionInfo[index].transactionName = data.transactionName}

3、编辑、详情页面数据子集回显问题

     :default-expanded-keys="[item.transactionCode]":default-checked-keys="[item.transactionCode]"