el -table 多层级嵌套-CSDN博客

        只要你后端可以查到数据这个层级可以无限嵌套 

        这里用了懒加载每次点击的时候将当前点击的父级id作为查询条件向后端发送请求来获取他子级的数据并不是将所有数据查出来拼接返回的。

 前端代码

 <el-table
            :data="dataList"
            style="width: 100%"
            row-key="id"
            border
            :lazy="true"
            :load="load"
            :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
                    <el-table-column
                            prop="name"
                            label="组织姓名"
                            width="180">
                    </el-table-column>
                    <el-table-column
                            prop="natures"
                            label="组织性质"
                            width="180">
                    </el-table-column>

                    <el-table-column
                            prop="dateEstablishment"
                            label="成立时间">
                    </el-table-column>
                    <el-table-column
                            prop="leader"
                            label="组织领导">
                    </el-table-column>
                    <el-table-column
                            prop="address"
                            label="地址">
                    </el-table-column>
</el-table>

        data() {
            return {
                inputForm: {
                    id: '',
                    parentId: '',
                    name: '',
                    sort: '',
                    natures: '',
                    area: '',
                    longitude: '',
                    latitude: '',
                    dateEstablishment: '',
                    leader: '',
                    address: '',
                    regionId:'',
                    regionParentIds:''
                },
                dataList: [],
                loading: false,
           
            }
        },

created() {
            // this.refreshList()
            this.initList()
        },
        methods: {
    
            //获取右边树表
            initList() {
                this.inputForm.parentId=0

                this.get(/organizationInfo/getOrganizationInfoByRegionId?parentId='+this.inputForm.parentId+'&regionId='+this.inputForm.regionId).then((res) => {
                    this.dataList = res
                })

            },
            load(row, treeNode, resolve) {
                this.get(ctx + '/basicinfo/organizationInfo/getOrganizationInfoByRegionId?parent.id=' + row.id).then((res) => {
                    resolve(res)
                })
            },
}

 后端代码

    /**
     * 通过地区id查询当前Parent的数据
     *
     * @param regionId
     * @return
     */
    @Override
    public List<OrganizationInfo> getOrganizationInfoByRegionId(OrganizationInfo organizationInfo) {
        //1.查询到所有该地区下的组织信息
        List<OrganizationInfo> organizationInfos = organizationInfoMapper.getOrganizationInfoByRegionId(organizationInfo);
        return organizationInfos;
    }