前端 树形结构展开后如图

数据 结构下
{
    "code":200,
    "success":true,
    "data":[
        {
            "companyCode":"1134730999683407874",
            "companyParentCode":0,
            "companyName":"中国建筑第二工程局有限公司",
            "companyLevel":0,
            "companyState":1,
            "addtime":"2019-06-07 00:29:55",
            "id":"1134730999683407874",
            "parentId":"0",
            "children":[
                {
                    "companyCode":"1135573482408587265",
                    "companyParentCode":1134730999683407900,
                    "companyName":"郑州地铁项目",
                    "companyLevel":1,
                    "companyState":1,
                    "addtime":"2019-06-07 00:29:55",
                    "id":"1135573482408587265",
                    "parentId":"1134730999683407874",
                    "parentName":"中国建筑第二工程局有限公司",
                    "sort":1
                },
                {
                    "companyCode":"1140593052654350338",
                    "companyParentCode":1134730999683407900,
                    "companyName":"武汉地铁",
                    "companyLevel":1,
                    "companyState":1,
                    "addtime":"2019-06-17 20:12:28",
                    "id":"1140593052654350338",
                    "parentId":"1134730999683407874",
                    "parentName":"中国建筑第二工程局有限公司",
                    "sort":1
                }
            ],
            "parentName":"顶级",
            "sort":0
        }
    ],
    "msg":"操作成功"
}

long类型到前端,js会缺失进度。后端要给parentcode转成string类型
参考如下:

但是好像并不是这个原因
{
    "code":200,
    "success":true,
    "data":[
        {
            "id":"1134730999683407874",
            "parentId":"0",
            "children":[
                {
                    "id":"1135573482408587265",
                    "parentId":"1134730999683407874",
                    "title":"郑州地铁项目",
                    "key":"1135573482408587265",
                    "value":"1135573482408587265"
                },
                {
                    "id":"1140593052654350338",
                    "parentId":"1134730999683407874",
                    "title":"武汉地铁",
                    "key":"1140593052654350338",
                    "value":"1140593052654350338"
                }
            ],
            "title":"中国建筑第二工程局有限公司",
            "key":"1134730999683407874",
            "value":"1134730999683407874"
        }
    ],
    "msg":"操作成功"
}
这个数据一样是不对的

{
    "code":200,
    "success":true,
    "data":[
        {
            "companyCode":"1134730999683407874",
            "companyParentCode":"0",
            "companyName":"中国建筑第二工程局有限公司",
            "companyLevel":0,
            "companyState":1,
            "addtime":"2019-06-07 00:29:55",
            "id":"1134730999683407874",
            "parentId":"0",
            "children":[
                {
                    "companyCode":"1135573482408587265",
                    "companyParentCode":"1134730999683407874",
                    "companyName":"郑州地铁项目",
                    "companyLevel":1,
                    "companyState":1,
                    "addtime":"2019-06-07 00:29:55",
                    "id":"1135573482408587265",
                    "parentId":"1134730999683407874",
                    "parentName":"中国建筑第二工程局有限公司",
                    "sort":1
                },
                {
                    "companyCode":"1140593052654350338",
                    "companyParentCode":"1134730999683407874",
                    "companyName":"武汉地铁",
                    "companyLevel":1,
                    "companyState":1,
                    "addtime":"2019-06-17 20:12:28",
                    "id":"1140593052654350338",
                    "parentId":"1134730999683407874",
                    "parentName":"中国建筑第二工程局有限公司",
                    "sort":1
                }
            ],
            "parentName":"顶级",
            "sort":0
        }
    ],
    "msg":"操作成功"
}
我本地写死了你的json,没问题,你可以像我这样配置下看看能不能通过假数据显示成功


