使用vue antd 体系实现一个树和表格的渲染

使用antd体系开发，这里是index.vue

<template>
  <div>
    <a-row :gutter="24">
      <a-col :md="5" :sm="24">
        <a-card :bordered="false" :loading="treeLoading">
          <div v-if="this.categoryTree != ''">
            <a-tree
              style="scroll:true"
              :treeData="categoryTree"
              v-if="categoryTree.length"
              @select="handleClick"
              :defaultExpandAll="true"
              :defaultExpandedKeys="defaultExpandedKeys"
              :replaceFields="replaceFields" />
          </div>
          <div v-else>
            <a-empty :image="simpleImage" />
          </div>
        </a-card>
      </a-col>
      <a-col :md="19" :sm="24">
        <a-card :bordered="false" :bodyStyle="tstyle">
          <div class="table-page-search-wrapper" v-if="hasPerm('category:page')">
            <a-form layout="inline">
              <a-row :gutter="48">
                <a-col :md="6" :sm="24">
                  <a-form-item label="门类名">
                    <a-input v-model="queryParam.categoryName" allow-clear placeholder="请输入门类名" />
                  </a-form-item>
                </a-col>
                <a-col :md="6" :sm="24">
                  <a-form-item label="门类编码">
                    <a-input v-model="queryParam.code" allow-clear placeholder="请输入唯一编码" />
                  </a-form-item>
                </a-col>
                <a-col :md="6" :sm="24">
                  <a-form-item label="门类类型">
                    <a-select style="width: 100%" v-model="queryParam.categoryType" placeholder="请选择门类类型">
                      <a-select-option v-for="(item, index) in categoryTypeData" :key="index" :value="item.code">{{
                        item.name
                      }}</a-select-option>
                    </a-select>
                  </a-form-item>
                </a-col>
                <a-col :md="6" :sm="24">
                  <span class="table-page-search-submitButtons">
                    <a-button type="primary" @click="$refs.table.refresh(true)">查询</a-button>
                    <a-button style="margin-left: 8px" @click="() => (queryParam = {})">重置</a-button>
                  </span>
                </a-col>
              </a-row>
            </a-form>
          </div>
        </a-card>
        <a-card :bordered="false">
          <s-table
            ref="table"
            :columns="columns"
            :data="loadData"
            :alert="options.alert"
            :rowKey="record => record.id"
            :rowSelection="options.rowSelection">
            <template class="table-operator" slot="operator" v-if="hasPerm('category:add')">
              <a-button type="primary" v-if="hasPerm('category:add')" icon="plus" @click="$refs.addForm.add()">新增门类
              </a-button>
              <a-button
                type="danger"
                :disabled="selectedRowKeys.length < 1"
                v-if="hasPerm('category:delete')"
                @click="batchDelete">
                <a-icon type="delete" />批量删除
              </a-button>
              <x-down v-if="hasPerm('category:export')" ref="batchExport" @batchExport="batchExport" />
            </template>
            <span slot="categoryTypeScopedSlots" slot-scope="text">
              {{ 'category_type' | dictType(text) }}
            </span>
            <span slot="action" slot-scope="text, record">
              <a v-if="hasPerm('category:edit')" @click="$refs.editForm.edit(record)">编辑</a>
              <a-divider type="vertical" v-if="hasPerm('category:edit') & hasPerm('category:delete')" />
              <a-popconfirm
                v-if="hasPerm('category:delete')"
                placement="topRight"
                title="确认删除？"
                @confirm="() => singleDelete(record)">
                <a>删除</a>
              </a-popconfirm>
            </span>
          </s-table>
          <add-form ref="addForm" :id="this.queryParam.pid" @ok="handleOk" />
          <edit-form ref="editForm" @ok="handleOk" />
        </a-card>
      </a-col>
    </a-row>
  </div>
</template>
<script>
import { STable, XCard, XDown } from '@/components'
import { Empty } from 'ant-design-vue'
import {
  getCategoryTree,
  categoryPage,
  categoryDelete,
  categoryExport
} from '@/api/modular/main/category/categoryManage'
import addForm from './addForm.vue'
import editForm from './editForm.vue'
export default {
  components: {
    STable,
    addForm,
    editForm,
    XDown,
    XCard
  },
  data() {
    return {
      // 查询参数
      queryParam: {},
      // 表头
      columns: [
        {
          title: '门类名',
          align: 'center',
          dataIndex: 'categoryName'
        },
        {
          title: '唯一编码',
          align: 'center',
          dataIndex: 'code'
        },
        {
          title: '门类类型',
          align: 'center',
          dataIndex: 'categoryType',
          scopedSlots: { customRender: 'categoryTypeScopedSlots' }
        },
        {
          title: '排序号',
          align: 'center',
          dataIndex: 'sort'
        },
        {
          title: '备注',
          align: 'center',
          dataIndex: 'remaks'
        }
      ],
      tstyle: { 'padding-bottom': '0px', 'margin-bottom': '10px' },
      // 加载数据方法 必须为 Promise 对象
      loadData: parameter => {
        return categoryPage(Object.assign(parameter, this.queryParam)).then(res => {
          return res.data
        })
      },
      List: [],
      categoryTree: [],
      defaultExpandedKeys: [],
      categoryTypeData: [],
      selectedRowKeys: [],
      selectedRows: [],
      treeLoading: true,
      simpleImage: Empty.PRESENTED_IMAGE_SIMPLE,
      replaceFields: {
        key: 'id'
      },
      options: {
        alert: {
          show: true,
          clear: () => {
            this.selectedRowKeys = []
          }
        },
        rowSelection: {
          selectedRowKeys: this.selectedRowKeys,
          onChange: this.onSelectChange
        }
      }
    }
  },
  created() {
    this.getCategoryTree()
    if (this.hasPerm('category:edit') || this.hasPerm('category:delete')) {
      this.columns.push({
        title: '操作',
        width: '150px',
        dataIndex: 'action',
        scopedSlots: { customRender: 'action' }
      })
    }
      const categoryTypeOption = this.$options
      this.categoryTypeData = categoryTypeOption.filters['dictData']('category_type')
  },
  methods: {
    // 获取树
    getCategoryTree() {
      getCategoryTree(Object.assign(this.queryParam)).then(res => {
        this.treeLoading = false
        if (!res.success) {
          return
        }
        this.categoryTree = res.data
        if (this.categoryTree.length > 0) {
          this.queryParam.parentId = this.categoryTree[0].id
        } else {
          this.queryParam.parentId = 0
        }
        // 全部展开，上面api方法提供的不生效，先用此方法
        for (var item of res.data) {
          // eslint-disable-next-line eqeqeq
          if (item.parentId == 0) {
            this.defaultExpandedKeys.push(item.id)
          }
        }
        this.$refs.table.refresh()
      })
    },
    /**
     * 单个删除
     */
    singleDelete(record) {
      const param = [{ id: record.id }]
      this.categoryDelete(param)
    },
    /**
     * 批量删除
     */
    batchDelete() {
      const paramIds = this.selectedRowKeys.map(d => {
        return { id: d }
      })
      this.categoryDelete(paramIds)
    },
    categoryDelete(record) {
      categoryDelete(record).then(res => {
        if (res.success) {
          this.$message.success('删除成功')
          this.$refs.table.clearRefreshSelected()
          this.getCategoryTree()
        } else {
          this.$message.error('删除失败') // + res.message
        }
      })
    },
    /**
     * 批量导出
     */
    batchExport() {
      const paramIds = this.selectedRowKeys.map(d => {
        return { id: d }
      })
      categoryExport(paramIds).then(res => {
        this.$refs.batchExport.downloadfile(res)
      })
    },
    handleClick(e) {
      this.queryParam = {
        pid: e.toString()
      }
      this.$refs.table.refresh(true)
    },
    handleOk() {
      this.getCategoryTree()
      this.$refs.table.refresh()
    },
    onSelectChange(selectedRowKeys, selectedRows) {
      this.selectedRowKeys = selectedRowKeys
      this.selectedRows = selectedRows
    }
  }
}

使用

tree组件，使用handleclick（）响应树节点点击，传递参数pid（树节点的id）父组件向子组件传值：在父组件定义一个参数，然后把他绑定到要回填的组件上，在这里使用的是:id="this.queryParam.pid"在子组件使用props，在data中定义props：[绑定的key]，这样就收到了，然后使用setFieldsValue回填到子组件表单中需要的位置。

setFieldsValue

在ant 中通过setFieldsValue 存储的类似是一种键值 对的形式，你可以通过对应的key 值来展示例如：

this.form.setFieldsValue(
      {
         pid: this.id
         }
   )

一般这种情况会报错，说这个this.form.setFieldsValue不是一个methods，所以可以使用一个定时器

setTimeout()=>{
this.form.setFieldsValue(
{
pid : this.id
}
),100}

除此之外，还应用了下拉树，在这里可以使用一个树的空间，叫做<tree-select>这一简单模块的前端大概就是这个样子。谢谢