关于javascript:使用vue-antd-体系实现一个树和表格的渲染

应用 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="请输出门类名" />
                  </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="请输出惟一编码" />
                  </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="请抉择门类类型">
                      <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="$refs.table.refresh(true)"> 查问 </a-button>
                    <a-button style="margin-left: 8px" @click="() => (queryParam = {})"> 重置 </a-button>
                  </span>
                </a-col>
              </a-row>
            </a-form>
          </div>
        </a-card>
        <a-card :bordered="false">
          <s-table
            ref="table"
            :columns="columns"
            :data="loadData"
            :alert="options.alert"
            :rowKey="record => record.id"
            :rowSelection="options.rowSelection">
            <template class="table-operator" slot="operator" v-if="hasPerm('category:add')">
              <a-button type="primary" v-if="hasPerm('category:add')" icon="plus" @click="$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 {
      // 查问参数
      queryParam: {},
      // 表头
      columns: [
        {
          title: '门类名',
          align: 'center',
          dataIndex: 'categoryName'
        },
        {
          title: '惟一编码',
          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'},
      // 加载数据办法 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}
        // 全副开展，下面 api 办法提供的不失效，先用此办法
        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('删除胜利')
          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
    }
  }
}

应用

tree 组件，应用 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，而后把他绑定到要回填的组件上，在这里应用的是:id=”this.queryParam.pid”
在子组件应用 props，在 data 中定义 props：[绑定的 key]，这样就收到了，而后应用 setFieldsValue 回填到子组件表单中须要的地位。

setFieldsValue

在 ant 中通过 setFieldsValue 存储的相似是一种键值 对的模式，你能够通过对应的 key 值来展现例如：

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

个别这种状况会报错，说这个 this.form.setFieldsValue 不是一个 methods，所以能够应用一个定时器

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

除此之外，还利用了下拉树，在这里能够应用一个树的空间，叫做 <tree-select>
这一简略模块的前端大略就是这个样子。
谢谢