1. vue2

对自己公司业务代码进行了一些封装，不太能保证其他人能够通用。

<template>
  <div class="base-table">
    <el-table
      ref="tableRef"
      :style="{ width: '100%' }"
      :data="tableData"
      :height="mannualHeight ? mannualHeight : tableHeight"
      :max-height="maxHeight"
      :border="border"
      :header-cell-style="{ 'text-align': align }"
      :cell-style="{ 'text-align': align }"
      @selection-change="changeTableSelection"
      @row-click="clickSingleRow"
    >
      <!-- expand -->
      <el-table-column v-if="isExpanded" type="expand">
        <template slot-scope="scope">
          <slot name="expand" :scope="scope" />
        </template>
      </el-table-column>
      <!-- select box -->
      <el-table-column v-if="selected" type="selection" width="50" :align="align" />
      <!-- index -->
      <el-table-column type="index" label="序号" width="70" :align="align" />
      <template v-for="(column, index) in tableColumns">
        <!-- normal table column -->
        <el-table-column
          v-if="isCommonTableColumn(column) && !column.hidden"
          :key="index + +column.attrs.label"
          v-bind="column.attrs || {}"
        />

        <el-table-column v-else-if="!column.hidden" :key="index + column.attrs.label">
          <template v-slot="scope">
            <span v-if="column.slot">
              <slot :name="column.slot" :scope="scope" />
            </span>
          </template>
        </el-table-column>
      </template>
    </el-table>
    <el-pagination
      v-if="pager"
      :current-page="requestParams.pageNum"
      :page-sizes="customPageSizes"
      :page-size="requestParams.pageSize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
      @size-change="changeTableSize"
      @current-change="changeTablePageNum"
    ></el-pagination>
  </div>
</template>

<script>
export default {
  name: 'BaseTable',
  props: {
    // table
    isExpanded: {
      type: Boolean,
      default: false
    },
    selected: {
      type: Boolean,
      default: false
    },
    disabledSelectionLabels: {
      type: Array,
      default: () => ['操作']
    },
    tableData: {
      type: Array,
      default: () => []
    },
    tableColumns: {
      type: Array,
      default: () => []
    },
    mannualHeight: {
      type: Number,
      default: 0
    },
    updatedHeight: {
      type: Number,
      default: 0
    },
    maxHeight: {
      type: Number,
      default: 0
    },
    border: {
      type: Boolean,
      default: true
    },
    stripe: {
      type: Boolean,
      default: true
    },
    align: {
      type: String,
      default: 'center'
    },

    // pagination
    pager: {
      type: Boolean,
      default: true
    },
    requestParams: {
      type: Object,
      default: () => ({
        pageNum: 1,
        pageSize: 20
      })
    },
    customPageSizes: {
      type: Array,
      default: () => [20, 50, 100]
    },
    total: {
      type: Number,
      default: 0
    },
    background: {
      type: Boolean,
      default: false
    }
  },
  data() {
    return {
      tableRef: null,
      tableHeight: 670
    }
  },
  methods: {
    // if it has one of the following attribute, then it isn't a normal table column.
    isCommonTableColumn(column) {
      const specialColumnList = ['slot']
      return !specialColumnList.some(option => column[option])
    },
    clickSingleRow(row, column) {
      const isFound = this.disabledSelectionLabels.find(item => item.label === column.label)
      if (!isFound) {
        this.$refs.tableRef.toggleRowSelection(row)
      }
    },
    changeTableSelection(val) {
      this.$emits('updateTableSelection', val)
    },
    changeTablePageNum(pageNum) {
      const updatedParams = { ...this.requestParams, pageNum: pageNum }
      this.$emits('updateRequestParams', updatedParams)
    },
    changeTableSize(pageSize) {
      const updatedParams = { ...this.requestParams, pageSize: pageSize }
      this.$emits('updateRequestParams', updatedParams)
    },

    // touch bottom to load
    // Pending
    loadWithScrollingToBottom() {
      const wrapRef = this.$refs.tableRef.scrollBarRef.wrapRef
      if (!wrapRef) return
      const { scrollHeight, scrollTop, clientHeight } = wrapRef
      if (scrollHeight - clientHeight === scrollTop) {
        this.$emits('updateLoadingMore')
      }
    }
  },
  activated() {
    this.$nextTick(function() {
      this.tableHeight = window.innerHeight - this.updatedHeight
      if (this.tableHeight < 100) {
        this.tableHeight = 100
      }

      // 监听窗口大小变化
      let self = this
      window.onresize = function() {
        self.tableHeight = window.innerHeight - this.updatedHeight
        if (self.tableHeight < 100) {
          self.tableHeight = 100
        }
      }
    })
  }
}
</script>

<style lang="less" scoped></style>