基于Vue+element-ui 的Table二次封装的如何实现

本人第一次写这个 写的不好还望指出来

作为一个由于公司产品的升级然促使我从一个后端人员自学变成前端的开发人员 ！

公司做的数据管理系统所以离不开表格了 然后表格样式统一啥的就想到封装一个element-ui 里面的table+Pagination了

效果图

表格组件的引入与使用

<com-table title="监测数据" v-model="tableData4" @selection-change="handleSelectionChange">
    <template>
     <el-table-column type="selection" width="55" align="center">
     </el-table-column>
     <el-table-column prop="name" label="表格名称" align="center">
     </el-table-column>
     <el-table-column label="测点" align="center">
      <template slot-scope="scope" v-if="scope.row.point.visible">
       <el-input v-model="scope.row.point.value" placeholder="请输入内容" @focus="focuspoint(scope.row.point)"></el-input>
      </template>
     </el-table-column>
     <el-table-column label="项目" align="center">
      <template slot-scope="scope" v-if="scope.row.item.visible">
       <el-input v-model="scope.row.item.value" placeholder="请输入内容" @focus="focusitem(scope.row.item)"></el-input>
      </template>
     </el-table-column>
    </template>
   </com-table>

使用插槽slot 使用起来就和原来的table一样了

import comTable from '@/components/common/com-table'
import { GetTempletExportList, GetTempletExportInfo } from '../../../api/transfer/index'
import ApiConfig from '@/api/ApiConfig'
export default {
 name: 'templet',
 components: {
  comTable
 },
 data() {
  return {
   tableData4: [],
   exporttableData: [],
   multipleSelection: [],
   currentpoint: null,
   currentitem: null,
   itemdialogshow: false,
   pointdialogshow: false,
   path: new ApiConfig().GetConfig().SysPath,
   checkeditem: [],//选中数据
  }
 },
 computed: {
  moduletype() {
   return this.$store.state.moduletype;
  },
  userinfo() {
   return this.$store.state.user.userInfo;
  }
 },
 watch: {
  moduletype() {
   this.init();
  }
 },
 created() {
  this.init();
 },
 methods: {
  init() {
   GetTempletExportList(this.userinfo.cityid, this.moduletype).then(re => {
    this.exporttableData = re.data;
    this.tableData4 = [];
    re.data.map(item => {
     this.tableData4.push({
      name: item.fldTableDesc,
      point: {
       visible: false,
       value: ''
      },
      item: {
       visible: true,
       value: item.ItemList
      }
     })
    })
   }, (error) => {
    this.$message({
     customClass: 'el-message_new',
     message: error,
     type: 'error'
    });
   })
  },
  handleSelectionChange(val) {
   console.log(val)
   this.multipleSelection = val;
  },
  focuspoint(val) {
   this.currentpoint = val;
  },
  focusitem(val) {
   this.currentitem = val;
   this.itemdialogshow = true;
  },
  itemconfirm() {
   this.itemdialogshow = !this.itemdialogshow;
  },
  itemhandleClose(done) {
   this.itemdialogshow = false;
  },
  ItemGroupSelectchange(val) {
   this.checkeditem = val;
   console.log(this.checkeditem);
   let groupitemcontent = [];
   val.map(item => {
    groupitemcontent.push(item.fldItemName);
   })
   this.currentitem.value = groupitemcontent.join(',');
  },
  submit() {
   if (this.multipleSelection.length > 0) {
    let message = "";
    let data = [];
    let name = "";
    this.multipleSelection.map((item, index) => {
     name = item.name;
     let str = item.name;
     let info = false;
     if (item.item.visible && item.item.value == "") {
      message += `表[${str}]请选择因子`;
      info = true;
     }
     if (item.point.visible && item.point.value == "") {
      if (info) {
       message += `、请选择测点/断面！`;
      } else {
       message += `表[${str}]请选择测点/断面！`;
      }
      info = true;
     }
     if (info) {
      message += "<br/>"
     }
     data.push({
      "AutoID": "1",
      "STCode": "",
      "PCode": "",
      "RCode": "",
      "RScode": "",
      "GDCODE": "",
      "type": this.moduletype,
      "itemcodeList": item.item.value.split(',').join('^'),
      "path": `${this.path.TempletExportSetting}${this.moduletype}.json`,
      "IsNeedNullData": "Y"
     })

    })
    if (message == "") {
     GetTempletExportInfo(data).then(re => {
      if (re.status == "ok") {
       var exportdata = eval((re.data));
       const { export_json_to_excel } = require("../../../libs/Export2Excel");
       if (exportdata[0].merg.length != 0) {
        var exdata = [];
        var itemlistUnit = [];
        var itemlistfldCharCode = [];
        for (var z = 0; z < exportdata[0].head.length - this.checkeditem.length; z++) {
         itemlistUnit.push(exportdata[0].head[z]);
         itemlistfldCharCode.push(exportdata[0].head[z])
        }
        this.checkeditem.map(item => {
         itemlistUnit.push(item.fldUnit);
         itemlistfldCharCode.push(item.fldCharCode);
        })
        var exdata = this.formatJson(exportdata[0].head, exportdata[0].data);
        exdata.unshift(itemlistUnit);
        exdata.unshift(itemlistfldCharCode);
        exdata.unshift(exportdata[0].head);
        console.log(exdata)
        exportdata[0].merg.push([0, 0, exportdata[0].head.length - 1, 0])
        export_json_to_excel([name], exdata, name, exportdata[0].merg);
       } else {
        var exdata = this.formatJson(exportdata[0].head, exportdata[0].data);
        exdata.unshift(exportdata[0].head);
        exportdata[0].merg.push([0, 0, exportdata[0].head.length - 1, 0])
        export_json_to_excel([name], exdata, name, exportdata[0].merg);
       }

      } else {
       this.$message({
        message: '导出失败！',
        type: 'error'
       });
      }
     })
    } else {
     this.$message({
      dangerouslyUseHTMLString: true,
      customClass: 'el-message_new',
      message: message,
      type: 'warning'
     });
    }
   } else {
    this.$message({
     customClass: 'el-message_new',
     message: '请先选择要导出的列表！',
     type: 'warning'
    });
   }
  },
  formatJson(filterVal, jsonData) {
   return jsonData.map(v =>
    filterVal.map(j => {
     return v[j];
    })
   );
  }
 }
}

comTable组件

<template>
 <div class="com-table">
  <div class="com-table-title" v-if="title">
   {{title}}
  </div>
  <div :class="[title?'com-table-content':'com-table-content-nottitle']">
   <el-table v-loading="loading" ref="multipleTable" stripe :data="tableData" style="width: 100%;" height="100%" border @selection-change="handleSelectionChange" @row-click="rowClick" @row-dblclick='rowDblclick' @cell-dblclick="celldblclick">
    <slot></slot>
   </el-table>
  </div>
  <div class="com-table-page">
   <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="PageIndex" :page-sizes="page_sizes" :page-size="Size" :layout="layout" :total="total">
   </el-pagination>
  </div>
 </div>
</template>
<script>
import commomway from '../../common/commonway.js' //分页
export default {
 name: 'com-table',
 props: {
  value: {//数据
   type: [Array, Object],
   default: () => {
    return [];
   }
  },
  PageSize: {//当前一页显示多少条数据
   type: Number,
   default: 20
  },
  page_sizes: {//分页规则
   type: Array,
   default: () => {
    return [1, 20, 40, 60, 80]
   }
  },
  current_page: {//当前所在页
   type: Number,
   default: () => {
    return 1;
   }
  },
  layout: {
   type: String,
   default: () => {
    return 'total, sizes, prev, pager, next, jumper';
   }
  },
  title: {//表格title
   type: String,
   default: () => {
    return '';
   }
  },
  loading: {
   type: Boolean,
   default: false
  }
 },
 data() {
  return {
   tableData: [],
   //页数索引  
   PageIndex: this.current_page,
   //每页显示的数量
   Size: this.PageSize,
   oldmultipleSelection: [],//旧的选中值
   multipleSelection: []//当前选中数据
  }
 },
 watch: {
  value(val) {
   this.getpagedata();
  },
  tableData(val) {
   // console.log(val);
  },
  multipleSelection(val, old) {
   this.oldmultipleSelection = old;
  }

 },
 mounted() {
  this.getpagedata();
 },
 computed: {
  total() {
   return this.value.length;
  }
 },
 methods: {
  //获得分页后的数据
  getpagedata() {
   var common = new commomway();
   this.tableData = common.pagination(this.PageIndex, this.Size, this.value, false);
   this.$emit("input", this.value);
   setTimeout(() => {//由于表格重新渲染延迟执行勾选
    this.toggleSelection(this.oldmultipleSelection)
   }, 20)

  },
  //点击每页显示数量时触发
  handleSizeChange: function (val) {
   this.Size = val;
   this.getpagedata();
   this.$emit('handleSizeChange', val);
  },
  //翻页的时候触发
  handleCurrentChange: function (val) {
   this.PageIndex = val;
   this.getpagedata();
   this.$emit('handleCurrentChange', val);

  },
  handleSelectionChange(val) {
   this.multipleSelection = val;
   this.$emit('selection-change', val);
  },
  toggleSelection(rows) {//勾选值
   if (rows) {
    rows.forEach(row => {
     this.$refs.multipleTable.toggleRowSelection(row);
    });
   } else {
    this.$refs.multipleTable.clearSelection();
   }
  },
  rowClick(row, event, column){
    this.$emit('row-click', row, event, column);
  },
  celldblclick(row, column, cell, event){
   this.$emit('cell-dblclick', row, column, cell, event);
  },
  rowDblclick(row,enent){
   //console.log(row,enent)
  }
 }
}
</script>
<style lang="sass">
 @import "./com-table.scss";
</style>

commonway.js

class CommonWay {
 /**
  * description：对数组的分页处理
  * author:bilimumu
  * date:2017-10-28 
  * @param {number} [pageNo=1] 页码
  * @param {number} [pageSize=10] 每页显示条数 
  * @param {any} [obj=[]] 待分页的数组
  * @param {Boolean} [iscreateNewdata=true] 是否创建新的数据
  * @returns 返回新的数组
  * @memberof CommonWay
  */
 pagination(pageNo = 1, pageSize = 10, obj = [], iscreateNewdata = true) {
  var array = [];
  if (iscreateNewdata) {
   array = JSON.parse(JSON.stringify(obj));
  } else {
   array = obj;
  }
  var offset = (pageNo - 1) * pageSize;
  return (offset + pageSize >= array.length) ? array.slice(offset, array.length) : array.slice(offset, offset + pageSize);
 }
}

export default CommonWay

com-table.scss

.com-table {
 height: 100%;
 width: 100%;
 &-title {
  color: #FFF;
  background: #42A2F5;
  padding: 0;
  font-size: 15px;
  height: 40px;
  line-height: 40px;
  text-indent: 8px;
 }
 &-content {
  width: 100%;
  height: calc(100% - 40px - 55px);
 }
 &-content-nottitle {
  width: 100%;
  height: calc(100% - 55px);
 }
 &-page {
  height: 55px;
  width: 100%;
  background: #EFF3F8;
  display: flex;
  align-items: center;
  justify-content: center;
 }
}

本文基于Vue+element-ui 的Table二次封装的如何实现到此结束。船的命运在于漂泊;帆的命运在于追风逐浪;人生的命运在于把握，把握信人生，方能青春无愧。小编再次感谢大家支持！