#15封装vue3+el-table表格数据请求函数

1、useTableData

2、util

3、使用

开箱即用，理解容易。

1、useTableData

import { reactive } from 'vue'
import { getType } from '@/utils/utils'

export const useTableData = (api) => {
  if (typeof api !== 'function' && getType(api) !== 'Promise') {
    throw new Error('请传入Promise类型的api请求')
  }

  // 分页器每页个数配置组
  const PAGE_SIZES = reactive([10, 20, 50])

  // 初始化数据
  const DEFAULT_TABLE_DATA = reactive({
    list: [],
    totalCount: 0,
    isLoading: false,
    currentPage: 1,
    pageSize: PAGE_SIZES[0]
  })

  // 数据表格
  const tableData = reactive({
    list: DEFAULT_TABLE_DATA.list,
    totalCount: DEFAULT_TABLE_DATA.totalCount,
    isLoading: DEFAULT_TABLE_DATA.isLoading
  })

  // 数据表格基本请求参数
  let tableParams = reactive({
    currentPage: DEFAULT_TABLE_DATA.currentPage,
    pageSize: DEFAULT_TABLE_DATA.pageSize
  })

  // 获取数据
  const fetchData = async () => {
    tableData.isLoading = true
    const res = await api(tableParams).catch(() => {
      tableData.isLoading = false
    })
    if (res) {
      console.log(api.toString() + '请求成功\n', res)
      tableData.isLoading = false
      tableData.list = res.list
      tableData.totalCount = res.totalCount
    } else {
      ElMessage.error('数据获取失败！')
    }
  }

  // 重置请求
  const reset = () => {
    tableData.list = DEFAULT_TABLE_DATA.list
    tableData.totalCount = DEFAULT_TABLE_DATA.totalCount
    tableData.isLoading = DEFAULT_TABLE_DATA.isLoading
    tableParams = {
      currentPage: DEFAULT_TABLE_DATA.currentPage,
      pageSize: DEFAULT_TABLE_DATA.pageSize
    }
    fetchData()
  }

  // 刷新
  const refresh = () => {
    fetchData()
  }

  // 设置查询参数
  const setParams = (params = {}) => {
    tableParams = { ...tableParams, ...params }
    fetchData()
  }

  return {
    PAGE_SIZES,
    tableData,
    tableParams,
    setParams,
    reset,
    refresh
  }
}

2、util

export const getType = (value) => {
let type = Object.prototype.toString.call(value)
  type = type.replace(/^\[object\s/, '')
  type = type.replace(/$/, '')
  return type
}

3、使用

const roleManagementTable =
useTableData(http.roleManagement.list)
<el-table
  :data="roleManagementTable.tableData.list"
  tooltip-effect="dark"
  :height="windowRect.clientHeight - 250"
  :row-style="{ height: '65px' }"
  @selection-change="onTableSelectionChange"
>

list即为一个axios请求；

然后将分页工具和分页参数进行绑定即可。

<el-pagination
@size-change="onSizeChange"
  @current-change="onCurrentChange"
  v-model:page-size="roleManagementTable.tableParams.pageSize"
  v-model:current-page="roleManagementTable.tableParams.currentPage"
  :page-sizes="roleManagementTable.PAGE_SIZES"
  :layout="`total,prev,pager,next,${device === 'mobile' ? '' : 'sizes'}`"
  :total="roleManagementTable.tableData.totalCount"
  :small="device === 'mobile'"
>
</el-pagination>

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