Javascriptvue.js表格分页，ajax异步加载数据

Vue.component('pagination',{
 template:'#paginationTpl',
 replace:true,
 props:['cur','all','pageNum'],
 methods:{
 //页码点击事件
 btnClick: function(index){
 if(index != this.cur){
 this.cur = index;
 }
 }
 },
 watch:{
 "cur" : function(val,oldVal) {
 this.$dispatch('page-to', val);
 }
 },
 computed:{
 indexes : function(){
 var list = [];
 //计算左右页码
 var mid = parseInt(this.pageNum / 2);//中间值
 var left = Math.max(this.cur - mid,1);
 var right = Math.max(this.cur + this.pageNum - mid -1,this.pageNum);
 if (right > this.all ) { right = this.all}
 while (left <= right){
 list.push(left);
 left ++;
 }
 return list;
 },
 showLast: function(){
 return this.cur != this.all;
 },
 showFirst: function(){
 return this.cur != 1;
 }
 }
 });

<script type="text/template" id="paginationTpl">
 <nav v-if="all > 1">
 <ul class="pagination">
 <li v-if="showFirst"><a href="javascript:" @click="cur--">?</a></li>
 <li v-for="index in indexes" :class="{ 'active': cur == index}">
 <a @click="btnClick(index)" href="javascript:">{{ index }}</a>
 </li>
 <li v-if="showLast"><a @click="cur++" href="javascript:">?</a></li>
 <li><a>共<i>{{all}}</i>页</a></li>
 </ul>
 </nav>
</script>

<div id='item_list'>
 ...
 <pagination :cur="1" :all="pageAll" :page-num="10" @page-to="loadList"></pagination>
</div>

var vm = new Vue({
 el: "#item_list",
 data: {
 items : [],
 //分页参数
 pageAll:0, //总页数,根据服务端返回total值计算
 perPage:10 //每页数量
 },
 methods: {
 loadList:function(page){
 var that = this;
 $.ajax({
 url : "/getList",
 type:"post",
 data:{"page":page,"perPage":this.perPage},
 dataType:"json",
 error:function(){alert('请求列表失败')},
 success:function(res){
 if (res.status == 1) {
 that.items = res.data.list;
 that.perPage = res.data.perPage;
 that.pageAll = Math.ceil(res.data.total / that.perPage);//计算总页数
 }
 }
 });
 },
 //初始化
 init:function(){
 this.loadList(1);
 }
 }
 });
 vm.init();