SpringBoot mybatis 实现多级树形菜单的示例代码

一、前言

iview-admin中提供了 这么一个vue组件可以实现树形菜单，下面小编来提供一下在element-ui中的使用教程（项目见：https://github.com/lison16/v-org-tree）

小编集成了el-dropdown下拉菜单（鼠标左击显示菜单），和右击自定义菜单，两种方式，效果图如下：

二、使用教程

（1）安装依赖

npm install clipboard
npm install v-click-outside-x
npm install v-org-tree

（2）引入组件

在main.js文件中引入

import treetable from 'tree-table-vue'
import vorgtree from 'v-org-tree'

（3）引入部分js工具方法

在项目目录下 -> src -> directive文件夹中引入如下4个js文件

clipboard.js

import clipboard from 'clipboard'
export default {
  bind: (el, binding) => {
    const clipboard = new clipboard(el, {
      text: () => binding.value.value
    })
    el.__success_callback__ = binding.value.success
    el.__error_callback__ = binding.value.error
    clipboard.on('success', e => {
      const callback = el.__success_callback__
      callback && callback(e)
    })
    clipboard.on('error', e => {
      const callback = el.__error_callback__
      callback && callback(e)
    })
    el.__clipboard__ = clipboard
  },
  update: (el, binding) => {
    el.__clipboard__.text = () => binding.value.value
    el.__success_callback__ = binding.value.success
    el.__error_callback__ = binding.value.error
  },
  unbind: (el, binding) => {
    delete el.__success_callback__
    delete el.__error_callback__
    el.__clipboard__.destroy()
    delete el.__clipboard__
  }
}

draggable.js

import { on } from '@/libs/tools'
export default {
  inserted: (el, binding, vnode) => {
    const triggerdom = document.queryselector(binding.value.trigger)
    triggerdom.style.cursor = 'move'
    const bodydom = document.queryselector(binding.value.body)
    let pagex = 0
    let pagey = 0
    let transformx = 0
    let transformy = 0
    let canmove = false
    const handlemousedown = e => {
      let transform = /\(.*\)/.exec(bodydom.style.transform)
      if (transform) {
        transform = transform[0].slice(1, transform[0].length - 1)
        const splitxy = transform.split('px, ')
        transformx = parsefloat(splitxy[0])
        transformy = parsefloat(splitxy[1].split('px')[0])
      }
      pagex = e.pagex
      pagey = e.pagey
      canmove = true
    }
    const handlemousemove = e => {
      const xoffset = e.pagex - pagex + transformx
      const yoffset = e.pagey - pagey + transformy
      if (canmove) bodydom.style.transform = `translate(${xoffset}px, ${yoffset}px)`
    }
    const handlemouseup = e => {
      canmove = false
    }
    on(triggerdom, 'mousedown', handlemousedown)
    on(document, 'mousemove', handlemousemove)
    on(document, 'mouseup', handlemouseup)
  },
  update: (el, binding, vnode) => {
    if (!binding.value.recover) return
    const bodydom = document.queryselector(binding.value.body)
    bodydom.style.transform = ''
  }
}

directives.js

import draggable from './module/draggable'
import clipboard from './module/clipboard'
 
const directives = {
  draggable,
  clipboard
}
 
export default directives

index.js

import directive from './directives'
 
const importdirective = vue => {
  /**
   * 拖拽指令 v-draggable="options"
   * options = {
   *  trigger: /这里传入作为拖拽触发器的css选择器/,
   *  body:    /这里传入需要移动容器的css选择器/,
   *  recover: /拖动结束之后是否恢复到原来的位置/
   * }
   */
  vue.directive('draggable', directive.draggable)
  /**
   * clipboard指令 v-draggable="options"
   * options = {
   *  value:    /在输入框中使用v-model绑定的值/,
   *  success:  /复制成功后的回调/,
   *  error:    /复制失败后的回调/
   * }
   */
  vue.directive('clipboard', directive.clipboard)
}
 
export default importdirective

（4）正式使用v-org-tree组件

 在所要使用的地方新增如下几个文件，比如我要写在user-group文件夹中

项目\src\components\org-view下面建立二个文件:

index.js

import orgview from './org-view.vue'
export default orgview

org-view.vue

<template>
  <div
    ref="dragwrapper"
    class="org-tree-drag-wrapper"
    @mousedown="mousedownview"
    @contextmenu="handledocumentcontextmenu"
  >
    <div class="org-tree-wrapper" :style="orgtreestyle">
      <v-org-tree
        v-if="data"
        :data="data"
        :node-render="noderender"
        :expand-all="true"
        @on-node-click="handlenodeclick"
        collapsable
      ></v-org-tree>
    </div>
  </div>
</template>
 
<script>
import { on, off } from '@/directive/module/tools'
 
export default {
  name: 'orgview',
  props: {
    zoomhandled: {
      type: number,
      default: 1
    },
    data: object,
    menulist: {
      type: array,
      default: function () {
        return [
          {
            key: 'edit',
            label: '编辑公司'
          },
          {
            key: 'detail',
            label: '查看公司'
          },
          {
            key: 'add',
            label: '新增子公司'
          },
          {
            key: 'delete',
            label: '删除公司'
          }
        ]
      }
    }
  },
  data () {
    return {
      currentcontextmenuid: '',
      orgtreeoffsetleft: 0,
      orgtreeoffsettop: 0,
      initpagex: 0,
      initpagey: 0,
      oldmarginleft: 0,
      oldmargintop: 0,
      canmove: false
    }
  },
  computed: {
    orgtreestyle () {
      return {
        transform: `translate(-50%, -50%) scale(${this.zoomhandled}, ${
          this.zoomhandled
        })`,
        marginleft: `${this.orgtreeoffsetleft}px`,
        margintop: `${this.orgtreeoffsettop}px`
      }
    }
  },
  methods: {
    handlenodeclick (e, data, expand) {
      expand()
    },
    closemenu () {
      this.currentcontextmenuid = ''
    },
    getbgcolor (data) {
      return this.currentcontextmenuid === data.id
        ? data.isroot
          ? '#0d7fe8'
          : '#5d6c7b'
        : ''
    },
    noderender (h, data) {
      return (
        <div
          class={[
            'custom-org-node',
            data.children && data.children.length ? 'has-children-label' : ''
          ]}
          on-mousedown={event => event.stoppropagation()}
          on-contextmenu={this.contextmenu.bind(this, data)}
        >
          {data.label}
          <dropdown
            trigger="custom"
            class="context-menu"
            visible={this.currentcontextmenuid === data.id}
            nativeon-click={this.handledropdownclick}
            on-on-click={this.handlecontextmenuclick.bind(this, data)}
            style={{
              transform: `scale(${1 / this.zoomhandled}, ${1 /
                this.zoomhandled})`
            }}
            v-click-outside={this.closemenu}
          >
            <dropdown-menu slot="list">
              {this.menulist.map(item => {
                return (
                  <dropdown-item name={item.key}>{item.label}</dropdown-item>
                )
              })}
            </dropdown-menu>
          </dropdown>
        </div>
      )
    },
    contextmenu (data, $event) {
      const event = $event || window.event
      event.preventdefault
        ? event.preventdefault()
        : (event.returnvalue = false)
      this.currentcontextmenuid = data.id
    },
    setdepartmentdata (data) {
      data.isroot = true
      this.departmentdata = data
    },
    mousedownview (event) {
      this.canmove = true
      this.initpagex = event.pagex
      this.initpagey = event.pagey
      this.oldmarginleft = this.orgtreeoffsetleft
      this.oldmargintop = this.orgtreeoffsettop
      on(document, 'mousemove', this.mousemoveview)
      on(document, 'mouseup', this.mouseupview)
    },
    mousemoveview (event) {
      if (!this.canmove) return
      const { pagex, pagey } = event
      this.orgtreeoffsetleft = this.oldmarginleft + pagex - this.initpagex
      this.orgtreeoffsettop = this.oldmargintop + pagey - this.initpagey
    },
    mouseupview () {
      this.canmove = false
      off(document, 'mousemove', this.mousemoveview)
      off(document, 'mouseup', this.mouseupview)
    },
    handledropdownclick (event) {
      event.stoppropagation()
    },
    handledocumentcontextmenu () {
      this.canmove = false
    },
    handlecontextmenuclick (data, key) {
      this.$emit('on-menu-click', { data, key })
    }
  },
  mounted () {
    on(document, 'contextmenu', this.handledocumentcontextmenu)
  },
  beforedestroy () {
    off(document, 'contextmenu', this.handledocumentcontextmenu)
  }
}
</script>
 
<style>
</style>

项目\src\components\zoom-controller下面建立二个文件:

index.js

import zoomcontroller from './zoom-controller'
export default zoomcontroller

zoom-controller.vue

<template>
  <div class="zoom-wrapper">
    <button class="zoom-button" @click="scale('down')">
      <icon type="md-remove" :size="14" color="#fff"/>
    </button>
    <span class="zoom-number">{{ value }}%</span>
    <button class="zoom-button" @click="scale('up')">
      <icon type="md-add" :size="14" color="#fff"/>
    </button>
  </div>
</template>
 
<script>
export default {
  name: 'zoomcontroller',
  props: {
    value: {
      type: number,
      default: 100
    },
    step: {
      type: number,
      default: 20
    },
    min: {
      type: number,
      default: 10
    },
    max: {
      type: number,
      default: 200
    }
  },
  methods: {
    scale (type) {
      const zoom = this.value + (type === 'down' ? -this.step : this.step)
      if (
        (zoom < this.min && type === 'down') ||
        (zoom > this.max && type === 'up')
      ) {
        return
      }
      this.$emit('input', zoom)
    }
  }
}
</script>
 
<style lang="less">
.trans(@duration) {
  transition: ~"all @{duration} ease-in";
}
.zoom-wrapper {
  .zoom-button {
    width: 20px;
    height: 20px;
    line-height: 10px;
    border-radius: 50%;
    background: rgba(157, 162, 172, 1);
    box-shadow: 0px 2px 8px 0px rgba(218, 220, 223, 0.7);
    border: none;
    cursor: pointer;
    outline: none;
    &:active {
      box-shadow: 0px 0px 2px 2px rgba(218, 220, 223, 0.2) inset;
    }
    .trans(0.1s);
    &:hover {
      background: #1890ff;
      .trans(0.1s);
    }
  }
  .zoom-number {
    color: #657180;
    padding: 0 8px;
    display: inline-block;
    width: 46px;
    text-align: center;
  }
}
</style>

 项目\src\view下面建立org.vue文件

<template>
  <card shadow style="height: 100%;width: 100%;overflow:hidden">
    <div class="department-outer">
      <div class="zoom-box">
        <zoom-controller v-model="zoom" :min="20" :max="200"></zoom-controller>
      </div>
      <div class="view-box">
        <org-view
            v-if="data"
            :data="data"
            :zoom-handled="zoomhandled"
            :menulist="menulist"
            @on-menu-click="handlemenuclick"
        ></org-view>
      </div>
    </div>
  </card>
</template>
 
<script>
import { orglist } from '@/api/org'
import { layerdialog } from '@/libs/diaglog'
import './org.less'
 
const orgview = vue.component('orgview', function (resolve) {
  require(['/user/org-view'], resolve)
})
const zoomcontroller = vue.component('zoomcontroller', function (resolve) {
  require(['/user/zoom-controller'], resolve)
})
export default {
  name: 'org_tree_page',
  components: {
    orgview,
    zoomcontroller
  },
  data () {
    return {
      data: null,
      zoom: 100,
      menulist: [
        {
          key: 'add',
          label: '新增子公司'
        },
        {
          key: 'edit',
          label: '编辑公司'
        },
        {
          key: 'delete',
          label: '删除公司'
        }
      ]
    }
  },
  computed: {
    zoomhandled () {
      return this.zoom / 100
    }
  },
  methods: {
    setdepartmentdata (data) {
      data.isroot = true
      return data
    },
    handlemenuclick ({ data, key }) {
      switch (key) {
        case 'add':
        case 'edit':
          console.log(data)
          this.showdialog(data, key)
          break
        case 'delete':
          break
      }
    },
    showdialog (data, key) {
      data.key = key
      const option = {
        id: key + 'savedialog',
        title: this.$i18n.t(key),
        width: '600px',
        height: '550px',
        url: '/api/org/' + qs.stringify(data, { arrayformat: 'brackets' })
      }
      layerdialog(option)
    },
    getdepartmentdata () {
      const entity = {}
      const levels = '0,1,2,3,4,5,6'
      entity.status = 1
      getorglist(entity, 1, 20, levels).then(result => {
        if (result.data.code === 10000) {
          let len = 0
          const list = result.data.data.list
          if (list) {
            len = list.length
          }
          var data = { id: 0, label: '阿里巴巴集团', level: 0 }
          if (len > 0) {
            data.children = this.formatdata(list, 1, 0)
          }
          this.data = data
        }
      })
    },
    formatdata (list, level, pid, pname) {
      const childrendata = []
      for (let i = 0; i < list.length; i++) {
        const data = {}
        const item = list[i]
        if (level === item.level) {
          data.id = item.id
          data.label = item.name
          data.parentname = pname
          data.level = item.level
          data.children = this.formatdata(list, level + 1, item.id, item.name)
          childrendata.push(data)
        }
      }
      return childrendata
    }
  },
  mounted () {
    this.getdepartmentdata()
  }
}
</script>

接口中核心代码：

list<station> stations = stationservice.listbyentity(station,levellist);
        list<stationvo> stationvos = new arraylist();
        for(station s : stations) {
            stationvo vo = new stationvo();
            vo.setid(s.getid());
            vo.setlevel(s.getlevel());
            vo.setname(s.getname());
            stationvos.add(vo);
        }

数据库中四个字段

mybatis  配置：

返回的json如下：

{
  "data" : {
    "page" : 1,
    "pagesize" : 20,
    "total" : 6,
    "pages" : 1,
    "list" : [ {
      "id" : 1,
      "name" : "天猫科技服务有限公司",
      "level" : 1,
      "status" : 1,
    }, {
      "id" : 2,
      "name" : "淘宝技术服务有限公司",
      "level" : 1,
      "status" : 1,
    }, {
      "id" : 3,
      "name" : "聚划算科技服务有限公司",
      "level" : 1,
      "status" : 1,
    }, {
      "id" : 4,
      "name" : "菜鸟金服",
      "level" : 2,
      "status" : 1,
    }, {
      "id" : 5,
      "name" : "黑鸟网络",
      "level" : 3,
      "status" : 1,
    }, {
      "id" : 6,
      "name" : "白鸟 网络",
      "level" : 3,
      "status" : 1,
    } ]
  },
  "message" : "获取成功",
  "code" : 200
}

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