一个可复用的vue分页组件

<template>
 <div class="pages-box" v-if="pageTotal > 0">
  <ul class="pages">
   <li class="pages-prev">
    <a v-if="pageNow != 1" href="javascript：void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" @click="prevClick">上一页</a>
   </li>
   <!--如果只有一页就不显示固定的第一个分页按钮了,避免重复-->
   <template v-if="pageTotal > 1">
    <li v-for="i in pageBegin" class="pages-li" :class="{active:i == pageNow}">
     <span v-if="i == pageNow" v-text="i"></span>
     <a v-else href="javascript：void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" @click="pageClick" v-text="i"></a>
    </li>
   </template>
   <li v-if="ellipsis[0] > slider">
    <span>...</span>
   </li>
   <li v-for="i in pageMiddle" class="pages-li" :class="{active:i == pageNow}">
    <span v-if="i == pageNow" v-text="i"></span>
    <a v-else href="javascript：void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" @click="pageClick" v-text="i"></a>
   </li>
   <li v-if="pageTotal - ellipsis[1] > slider">
    <span>...</span>
   </li>
   <li v-for="i in pageEnd" class="pages-li" :class="{active:i == pageNow}">
    <span v-if="i == pageNow" v-text="i"></span>
    <a v-else href="javascript：void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" @click="pageClick" v-text="i"></a>
   </li>

   <li class="pages-next">
    <a v-if="pageNow != pageTotal" href="javascript：void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" @click="nextClick">下一页</a>
   </li>
  </ul>
 </div>
</template>

<script>
 export default{
  name: 'pages',
  props: {
   //总页数
   total: {
    type: [Number, String],
    required: true
   },
   //当前页
   now: {
    type: [Number, String],
    default: 1
   }
  },
  data() {
   return {
    //当前页
    pageNow: this.now,
    //总页数
    pageTotal: this.total,
    //输入的页码
    pageNum: "",
    //显示分页按钮的个数
    length: 8,
    //前后固定的分页按钮个数
    slider: 1
   }
  },
  watch: {
   total(val){
    let page_total = parseInt(val);
    page_total = (isNaN(page_total) || page_total < 1) ? 1 : page_total;
    this.pageTotal = page_total;
   },
   now(val){
    let page_now = parseInt(val);
    page_now = (isNaN(page_now) || this.pageTotal < 2 || page_now < 1) ? 1 : page_now;
    page_now = page_now > this.pageTotal ? this.pageTotal : page_now;
    this.pageNow = page_now;
   }
  },
  computed: {
   //前边显示固定分页数
   pageBegin(){
    return Math.min(this.slider, this.ellipsis[0]);
   },
   //中间显示分页数
   pageMiddle(){
    let arr = [];
    for (let i = this.ellipsis[0] + 1; i <= this.ellipsis[1]; i++) {
     arr.push(i);
    }
    return arr;
   },
   //后边显示分页数
   pageEnd(){
    let arr = [];
    for (let i = this.ellipsis[2] + 1; i <= this.pageTotal; i++) {
     arr.push(i);
    }
    return arr;
   },
   /**
    * 出现三个点时的分页的范围
    * @returns {*[]}
    * begin: 开始页码
    * end: 结束页码
    * end_max: 结束页码的最大值
    */
   ellipsis() {
    let end_max = this.pageTotal - this.slider;
    let begin = this.pageNow - (this.length / 2) + this.slider;
    begin = begin < 1 ? 1 : begin;
    let end = begin + this.length - 2 * this.slider;
    //当begin达到最小值后需要根据begin重新计算end以保证显示的分页按钮个数不变
    end = begin < this.slider ? (end + this.slider - begin) : end;
    if (end >= end_max) {
     end = end_max;
     //当end达到最大值后需要根据end重新计算begin以保证显示的分页按钮个数不变
     begin = (end - this.length + 2 * this.slider) < 1 ? 1 : (end - this.length + 2 * this.slider);
    }
    return [begin, end, end_max];
   }
  },
  methods: {
   //上一页
   prevClick() {
    this.pageNow--;
    this.pageNow = this.pageNow < 1 ? 1 : this.pageNow;
    this.changePage(this.pageNow);
   },
   //下一页
   nextClick() {
    this.pageNow++;
    this.pageNow = this.pageNow > this.pageTotal ? this.pageTotal : this.pageNow;
    this.changePage(this.pageNow);
   },
   //点击页码
   pageClick(e) {
    this.pageNow = Number(e.target.innerText.trim());
    this.changePage(this.pageNow);
   },
   //输入页码
   pageInput(e){
    let num = parseInt(e.target.innerText);
    if(isNaN(num)){
     this.pageNum = '';
     e.target.innerText = '';
    } else {
     this.pageNum = num;
     //e.target.innerText = num;
    }
   },
   //跳转到输入的页码
   goClick() {
    this.pageNum = this.pageNum < 1 ? 1 : this.pageNum;
    this.pageNum = this.pageNum > this.pageTotal ? this.pageTotal : this.pageNum;
    this.pageNow = this.pageNum;
    this.pageNum = "";
    this.changePage(this.pageNow);
   },
   // 切换分页
   changePage(page){
    let {name, params, query} = this.$route;
    this.$router.push({
     name,
     params: Object.assign(params, {page}),
     query
    });
   }
  }
 }
</script>
<style lang="sass" type="text/scss" rel="stylesheet/scss">
 @import '../scss/base/variables';

 .pages-box{
  position: relative;
  padding: 5px 10px;
  margin: 20px 0;
  text-align: center;
 }

 .pages{
  display: inline-block;
  padding: 10px 0;
  &:after{
   content: "";
   display: table;
   line-height: 0;
   clear: both;
  }
  li{
   float: left;
   height: 20px;
   line-height: 20px;
   text-align: center;
   margin: 0 2px;
   box-sizing: border-box;
   font-size: 13px;
   span, a{
    display: block;
    width: 100%;
    height: 100%;
    padding: 0 2px;
    box-sizing: border-box;
   }
  }
  .pages-li{
   min-width: 30px;
   border: 1px solid $theme;
   color: $theme;
   a{
    color: $theme;
   }
   &.active{
    span{
     background: $theme;
     color: #fff;
    }
   }
  }
  .pages-prev, .pages-next{
   padding: 0 8px;
   font-size: 12px;
   a{
    display: block;
    height: 100%;
    position: relative;
    color: $theme;
    &:before{
     content: '';
     position: absolute;
     top: 50%;
     display: block;
     width: 6px;
     height: 6px;margin-top:-4px;
     border-left: 1px solid $theme;
     border-top: 1px solid $theme;
    }
   }
  }
  .pages-prev a{
   padding-left: 8px;
   &:before{
    transform:rotate(-45deg);
    left: 0;
   }
  }
  .pages-next a{
   padding-right: 8px;
   &:before{
    transform:rotate(135deg);
    right: 0;
   }
  }
  .pages-num{
   .num-input{
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    line-height: 20px;
    border-radius: 2px;
    border: 1px solid $theme;
    color: $theme;
    text-align: center;
    outline: none;
   }
  }
  .pages-go{
   a{
    color: $theme;
   }
   span{
    color: #666;
   }
  }
 }
</style>

<!--分页组件-->
<pages :now="page" :total="totalPage" v-if="totalPage > 0"></pages>

data(){
    return {
      totalPage:1,
      page:1,
        }
    },

this.page = this.$route.params.page;

getorderfromServer({
          currentPage:this.page
        })

methods: {
      // 查询全部订单
      getorderfromServer(){
        this.loading = true;
        this.page = this.$route.params.page;
        getorderfromServer({
          currentPage: this.page,
          orderTimeStart:this.orderTimeStart,
          orderTimeEnd:this.orderTimeEnd,
          serviceName:this.serviceName,
          shopName:this.shopName,
          status: this.status
        }).then(({code, data}) => {
          if (code == 200) {
            this.Orderlist = data.list;
            this.totalPage = data.totalPage;
          }
          this.loading = false;
        }).catch(err => {
          this.tip('服务内部错误', 'error');
          this.Orderlist = {};
          this.loading = false;
        });
      },
    }

watch: {
      $route: 'getorderfromServer'
    }

{
  path: 'order',
  redirect: 'order/page/1',
},
{
  path: 'order/page/:page',
  component(resolve){
    require.ensure([], function (require) {
      resolve(require('../modules/personal/order/myorder.vue'));
    }, 'modules/personal')
  },
  name:'order',
  meta: {
    login: 'none'
  }
},