Vue component library ElementUI realizes the paging effect of table list

<!--Table-->
<div class="formTable" id="formTable">
<el-table
  ref="Table"
  :data="apprItemData"
  :header-cell-style="headClass"
         row-key="approveItem"
         :tree-props="{children: 'children'}"
         height="420"
  border>
 <el-table-column
   type="selection"
   width="55">
 </el-table-column>
 <el-table-column
   label="Serial number"
   width="60"
   align="center">
  <template slot-scope="scope">{{scope.$index+1}}</template>
 </el-table-column>
 <el-table-column
   prop="itemCode"
   label="encoding">
 </el-table-column>
 <el-table-column
   prop="approveName"
   label="Item Name">
 </el-table-column>
</el-table>
</div>
<!--Table Pagination-->
<div class="pagination">
 <el-pagination
   background
   @size-change="handleSizeChange"
   @current-change="handleCurrentChange"
   :page-sizes="[5,10, 15, 20, 25]"
   :page-size="pageSize"
   layout="total, sizes, prev, pager, next, jumper"
   :total="totalRow">
 </el-pagination>
</div>

<script type="text/babel">
 var vm = new Vue({
     el: '#app',
     data:{
         apprItemData : [],
         currentPage: 1, //Current page totalRow: 0, //Total number of pages pageSize: 10 //Current number of displayed items},
     computed: {},
     watch: {},
     created() {},
     mounted() {
         this.loadItemData();
},
     methods: {
         // Load information loadItemData () {
             var pageSize = this.pageSize;
             var currentPage = this.currentPage;
             console.log("pageSize:"+pageSize+",currentPage:"+currentPage);
 //debugger;
 var geturl = '${root}/config/loadItemData.do?rows='+pageSize + '&page=' + currentPage;
             $.ajax({
                 type: 'get',
                 url:geturl,
                 contentType: "application/json; charset=utf-8",
                 success: function(data) {
                     //debugger;
                     console.log("totalRow:"+data.total);
                     vm.apprItemData = data.rows;
                     vm.totalRow = Number(data.total);
                 },
                 error: function(e) {
                     console.log("Error in loading data:",e);
                 }
             })
         }
         // Header style settings headClass() {
             return 'text-align: center;background:#F7F7F7;color:#1C1C1D;'
         },
         //Page number change handleSizeChange(val) {
             this.pageSize = val;
             this.loadItemData();
         },
         //Current page change handleCurrentChange(val) {
             this.currentPage = val;
             this.loadItemData();
         }
     }
 });
</script>