树形数据转json

数据格式

 

 

返回数据格式1： （最后一级children如果为空，则为children:[]）

    transData(data) {

      const resData = data

      const tree = []

      for (let i = 0; i < resData.length; i++) {

        if (resData[i]['domainLevel'] === '1') {

          const obj = {

            domainCode: resData[i]['domainCode'],

            domainDescription: resData[i]['domainDescription'],

            domainLevel: resData[i]['domainLevel'],

            children:[]

          }

          tree.push(obj)

          resData.splice(i, 1)

          i--

        }

      }

      this.run(tree, resData)

 

      return tree

    },

    run(chiArr, resData) {      

        if (resData && resData.length !== 0) {

        for (let i = 0; i < chiArr.length; i++) {

          for (let j = 0; j < resData.length; j++) {

            if (resData[j]['domainCode'].substring(0, chiArr[i].domainCode.length) === chiArr[i].domainCode && resData[j]['domainLevel'] === (parseInt(chiArr[i].domainLevel) + 1).toString()) {

              const obj = {

                domainCode: resData[j]['domainCode'],

                domainDescription: resData[j]['domainDescription'],

                domainLevel: resData[j]['domainLevel'],

                children: []

              }

              chiArr[i].children.push(obj)

              resData.splice(j, 1)

              j--

            }

          }

          this.run(chiArr[i].children, resData)

        }

      }

    }

 

返回格式2：（最后一级children如果为空，则不要children）

    transData(data) {

      const resData = data

      const tree = []

      for (let i = 0; i < resData.length; i++) {

        if (resData[i]['domainLevel'] === '1') {

          const obj = {

            domainCode: resData[i]['domainCode'],

            domainDescription: resData[i]['domainDescription'],

            domainLevel: resData[i]['domainLevel']

          }

          tree.push(obj)

          resData.splice(i, 1)

          i--

        }

      }

      this.run(tree, resData)

      return tree

    },

    run(chiArr, resData) {

      for (let i = 0; i < chiArr.length; i++) {

        const temp = resData.filter(item => item.domainCode.substring(0, chiArr[i].domainCode.length) === chiArr[i].domainCode && item.domainLevel === (parseInt(chiArr[i].domainLevel) + 1).toString())

        if (temp && temp.length > 0) {

          chiArr[i].children = temp

        }

        if (chiArr[i].children) {

          this.run(chiArr[i].children, resData)

        }

      }

    },