一个可复用的vue分页组件

时间:2021-05-25

不废话,先上组件文件pages.vue:

<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>

使用方法:

在需要分页的地方使用分页组件标签,比如这里的order.vue:

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

在data中设置当前页和总页面的默认值

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

考虑一下我们希望我们点击页数按钮后发生什么

首先,点击某页数时路由会改变页数,从路由获取当前页

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

接着,我们希望有一个getorderfromServer方法将当前页数发送给服务器,再将返回的数据更新在页面上

getorderfromServer({ currentPage:this.page })

最后调用的方法:

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; }); }, }

注意通过路由对方法作出响应,每次路由改变都调用此方法以更新页面

watch: { $route: 'getorderfromServer' }

还要对路由信息进行改造,让每一页(尤其是第一页)都有路由页数信息,可以对第一页进行重定向以达到目的:

{ 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' }},

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。

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