Vue iview Tree组件实现文件目录-基础实现

注册页面路由

router/router.js

  {
    path: 'folder_tree',
    name: 'folderTree',
    component: () => import('@/views/folder-tree/folder-tree.vue')
  }

定义api请求

api/data.js

export const getFolderList = () => {
  return axios.request({
    url: '/getFolderList',
    method: 'get'
  })
}

export const getFileList = () => {
  return axios.request({
    url: '/getFileList',
    method: 'get'
  })
}

mock数据

mock/index.js

import Mock from 'mockjs'
import { getFileList, getFolderList } from './response/data'
const Random = Mock.Random

Mock.mock(/\/getFileList/, 'get', getFileList)
Mock.mock(/\/getFolderList/, 'get', getFolderList)

export default Mock

mock/response/data.js

import { doCustomTimes } from '@/lib/tools'
import Mock from 'mockjs'
const Random = Mock.Random

export const getFolderList = () => {
  const template1 = {
    'name|1': '@word',
    'creat_time': '@datetime',
    'folder_id': 0,
    'id|+1': 1
  }
  const template2 = {
    'name|1': '@word',
    'creat_time': '@datetime',
    'folder_id|+1': 1,
    'id|+1': 4
  }
  let arr = []
  doCustomTimes(3, () => {
    arr.push(Mock.mock(template1))
  })
  doCustomTimes(2, () => {
    arr.push(Mock.mock(template2))
  })
  return arr
}

自定义函数

lib/tools.js

// 调用times次callback
export const doCustomTimes = (times, callback) => {
  let i = -1
  while (++i < times) {
    callback()
  }
}

使用

iviews/folder-tree/folder-tree.vue

<template>
  <h1>folder-tree page</h1>
</template>
<script>
import { getFolderList, getFileList } from '@/api/data'
export default {
  data () {
    return {
      folderList: [],
      fileList: []
    }
  },
  mounted () {
    Promise.all([getFolderList(), getFileList()]).then(res => {
      console.log(res)
    })
  }
}
</script>

---

将文件放在对应的文件夹里

lib/util.js

import clonedeep from 'clonedeep'

export const putFileInFolder = (folderList, fileList) => {
  const folderListCloned = clonedeep(folderList)
  const fileListCloned = clonedeep(fileList)
  return folderListCloned.map(folderItem => {
    const folderId = folderItem.id
    let index = fileListCloned.length
    while (--index >= 0) {
      const fileItem = fileListCloned[index]
      if (fileItem.folder_id === folderId) {
        const file = fileListCloned.splice(index, 1)[0]
        file.title = file.name
        if (folderItem.children) folderItem.children.push(file)
        else folderItem.children = [file]
      }
    }
    folderItem.type = 'folder'
    return folderItem
  })
}

folder-tree.vue

Promise.all([getFolderList(), getFileList()]).then(res => {
      console.log(putFileInFolder(res[0], res[1])) // 如图
    })

图:



递归函数(整合文件夹)

util.js

export const transferFolderToTree = folderList => {
  if (!folderList.length) return []
  const folderListCloned = clonedeep(folderList)
  const handle = id => {
    let arr = []
    folderListCloned.forEach(folder => {
      if (folder.folder_id === id) {
        const children = handle(folder.id)
        if (folder.children) {
          folder.children = [].concat(folder.children, children)
        } else {
          folder.children = children
        }
        folder.title = folder.name
        arr.push(folder)
      }
    })
    return arr
  }
  return handle(0)
}

---

1. Tree组件使用

src\views\folder-tree\folder-tree.vue

<template>
  <Tree :data="folderTree"></Tree>
</template>
<script>
import { getFolderList, getFileList } from '@/api/data'
import { putFileInFolder, transferFolderToTree } from '@/lib/util'
export default {
  data () {
    return {
      folderList: [],
      fileList: [],
      folderTree: []
    }
  },
  mounted () {
    Promise.all([getFolderList(), getFileList()]).then(res => {
      this.folderTree = transferFolderToTree(putFileInFolder(res[0], res[1]))
    })
  }
}
</script>

1. 扁平数据树状化

3 ## 自定义组件结构

src\views\folder-tree\folder-tree.vue

<template>
  <div class="folder-wrapper">
    <Tree :data="folderTree" :render="renderFunc"></Tree>
  </div>
</template>
<script>
import { getFolderList, getFileList } from '@/api/data'
import { putFileInFolder, transferFolderToTree } from '@/lib/util'
export default {
  data () {
    return {
      folderList: [],
      fileList: [],
      folderTree: [],
      renderFunc: (h, { root, node, data }) => {
        return (
          <div class="tree-item">
            {data.type === 'folder' ? (
              <icon
                type="ios-folder"
                color="#2d8cf0"
                style="margin-right: 5px;"
              />
            ) : (
              ''
            )}
            {data.title}
          </div>
        )
      }
    }
  },
  mounted () {
    Promise.all([getFolderList(), getFileList()]).then(res => {
      this.folderTree = transferFolderToTree(putFileInFolder(res[0], res[1]))
    })
  }
}
</script>
<style lang="less">
.folder-wrapper {
  width: 300px;
  .tree-item {
    display: inline-block;
    width: ~"calc(100% - 50px)";
    height: 30px;
    line-height: 30px;
  }
}
</style>