刚开始使用vue3写博客的时候,其相关配套的UI库并没有正式发布,但是我还要用,所以这里我自定义了一个分页组件:最后效果如下图所示:
上代码:
Pagination.vue
<template>
<!-- 自定义分页组件 -->
<div class="page-bar">
<ul>
<li class="first">
<!-- <span>共{{dataNum}}条记录 第 {{cur}} / {{all}} 页</span> -->
<span>共{{ dataNum }}条记录 </span>
</li>
<li v-if="cur > 1" class="prev-next">
<!-- 点击上一页 -->
<a v-on:click="cur--, pageClick()"> prev </a>
</li>
<li v-if="cur == 1" class="prev-next">
<!-- 点击第一页时显示 -->
<a class="banclick"> prev </a>
</li>
<li
class="li_a"
v-for="index in indexs"
v-bind:class="{ active: cur == index }"
>
<!-- 页码 -->
<a v-on:click="btnClick(index)"> {{ index }}</a>
</li>
<li v-if="cur != all" class="prev-next">
<!-- 点击下一页 -->
<a v-on:click="cur++, pageClick()"> next </a>
</li>
<li v-if="cur == all" class="prev-next">
<!-- 点击最后一页时显示 -->
<a class="banclick"> next </a>
</li>
<li class="last_li">
<!-- 共有多少页 -->
跳至<input type="text" class="page-input" @blur.prevent="changePage()" v-model="jumpPage">页
</li>
<li class="last_li">
<!-- 共有多少页 -->
<span
>共<i>{{ all }}</i
>页</span
>
</li>
</ul>
</div>
</template>
<script>
// 引入js文件
import Pagination from "/@/assets/js/components/pc/Pagination";
// 使用js对象
export default {
...Pagination,
};
</script>
<style lang="scss" scoped>
@import "../../assets/css/components/pc/Pagination.scss";
</style>
Pagination.ts
import {
PropType,
ref,
watch,
computed,
reactive,
toRefs,
inject,
provide,
onMounted
} from "vue";
// 引入公共js文件
import utils from "/@/assets/js/public/function";
// 定义返回的类型
interface dataRef {
btnClick: (val:number) => void;
pageClick: () => void;
changePage: () => void;
}
export default {
name: "Pagination",
props: {
// 总页数
'dataAll': {
type: Number,
default: 100,
required: true
},
// 当前页数
'dataCur': {
type: Number,
default: 1,
required: true
},
// 页面条数
'datanum': {
type: Number,
default: 7
},
// 数据总量
'dataDatanum': {
type: Number,
default: 456
},
},
// VUE3语法 setup函数
// setup官方文档:https://www.vue3js.cn/docs/zh/guide/composition-api-setup.html#参数
setup(props: any, content:any): dataRef
{
/**
* @name: 声明data
* @author: camellia
* @email: guanchao_gc@qq.com
* @date: 2021-01-10
*/
const data:any = reactive({
all: props.dataAll, //总页数
cur: Number(props.dataCur),//当前页码
num: props.datanum, //一页显示的数量 奇数
dataNum: props.dataDatanum,//数据的数量
jumpPage:0,// 跳转页码
indexs:computed(()=>{
var left = 1;
var right = data.all;
var ar = [];
if (data.all >= data.num)
{
if (data.cur > 3 && data.cur < data.all - 2)
{
left = data.cur - (data.num - 1) / 2;
right = Number(data.cur) + Number((data.num - 1) / 2);
}
else
{
if (data.cur <= 3)
{
left = 1
right = data.num
}
else
{
right = data.all
left = data.all - (data.num - 1);
}
}
}
while (left <= right)
{
ar.push(left)
left++
}
return ar
})
});
/**
* @name: 页码点击事件
* @author: camellia
* @email: guanchao_gc@qq.com
* @date: 2021-01-11
*/
const btnClick = (val:Number) => {
if (val != data.cur)
{
data.cur = val
content.emit('changePage', data.cur);
}
};
/**
* @name: 点击上一页下一页
* @author: camellia
* @email: guanchao_gc@qq.com
* @date: 2021-01-11
*/
const pageClick = () => {
//父组件通过changePage方法来接受当前的页码
//这里是点击下一页执行函数
content.emit('changePage', data.cur)
}
/**
* @name: 跳至 xxx 页
* @author: camellia
* @email: guanchao_gc@qq.com
* @date: 2021-01-13
*/
const changePage = () => {
if (data.jumpPage > data.all || data.jumpPage < 1 || isNaN(data.jumpPage) )
{
utils.alertMsg(2000,"参数错误!");return;
}
content.emit('changePage', Number(data.jumpPage))
}
/**
* @name: 将data绑定值dataRef
* @author: camellia
* @email: guanchao_gc@qq.com
* @date: 2021-01-10
*/
const dataRef = toRefs(data);
return {
btnClick,
pageClick,
changePage,
...dataRef
}
},
}
Pagination.scss
.page-bar {
text-align: center;
width: 100%;
height: 36px;
margin: 0 auto;
position: relative;
}
.page-bar ul {
min-width: 800px;
display: block;
overflow: hidden;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
}
.page-bar li {
display: block;
border: 1px solid #ddd;
width: 36px;
height: 36px;
border-radius: 4px;
list-style: none;
overflow: hidden;
position: relative;
float: left;
margin-left: 8px;
}
.page-bar .first{
display: block;
// width: 170px;
width: 100px;
height: 36px;
font-size: 14px;
line-height: 36px;
text-align: center;
}
.page-bar .last_li{
width: 100px;
height: 36px;
border: 1px solid #ddd;
line-height: 34px;
}
.page-bar .last_li span{
width: 100%;
height: 100%;
line-height: 36px;
text-align: center;
float: left;
}
.page-bar li:first-child {
margin-left: 0px
}
.page-bar a {
width: 34px;
height: 34px;
text-decoration: none;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
/*margin-left: -1px;*/
line-height: 34px;
color: #333;
cursor: pointer
}
.page-bar .li_a a:hover {
background-color: #eee;
border: 1px solid #40A9FF;
color: #40A9FF;
}
.page-bar a.banclick {
cursor: not-allowed;
}
.page-bar .active a {
color: #fff;
cursor: default;
background-color: #1890FF;
border-color: #1890FF;
}
.page-bar i {
font-style: normal;
color: #d44950;
margin: 0px 4px;
font-size: 14px;
}
.page-bar .prev-next{
width:50px;
}
.page-bar input{
background:none;
outline:none;
border:1px solid #ccc;
}
.page-bar .page-input{
width: 30px;
height: 25px;
padding-left: 6px;
}
父组件调用:
Index.ts
import {
PropType,
ref,
watch,
reactive,
toRefs,
getCurrentInstance,
provide,
inject,
onBeforeMount,// 在组件挂载之前执行的函数
onMounted,
onBeforeUpdate,// 在组件修改之前执行的函数
onUpdated,
onBeforeUnmount,// 在组件卸载之前执行的函数
onUnmounted,
nextTick
} from "vue";
// 引入axios钩子
import axios from "/@/hooks/axios.ts";
// 引入路由
import { useRouter, useRoute } from "vue-router";
// 引入各个自定义组件(懒加载)
// const HelloWorld = () => import("/@/components/HelloWorld.v
import Pagination from "/@/components/pc/Pagination.vue";
export default {
name: "index",
components: {
Pagination,
},
// VUE3 语法 第一个执行的钩子函数
// setup官方文档 :https://www.vue3js.cn/docs/zh/guide/composition-api-setup.html#参数
// setup(props: any, content: any) {
setup(props: any, content: any) {
const router = useRouter();
const route = useRoute()
//获取上下文实例,ctx=vue2的this
// const { ctx,proxy } = getCurrentInstance();
/**
* @name: 声明data
* @author: camellia
* @email: guanchao_gc@qq.com
* @date: 2021-01-10
*/
const data = reactive({
// 文章列表
articleList:[],
// 数据页数
articlePage:0,
// 当前页
currentPage: route.query.page ? route.query.page : 1,
// 分页显示页码数
dataNum:7,
// 查询条件
search:'search',
// 数据总条数
dataDatanum:'',
});
/**
* @name: 分页子组件传递值方法
* @author: camellia
* @email: guanchao_gc@qq.com
* @date: 2021-01-11
* @param: param Number 子组件传递来的页码
*/
const changePage = (param: number) => {
data.currentPage = param;
getData('page');
router.push(
{
path: '/pc/index',
query: {
page: JSON.stringify(data.currentPage)
}
});
}
// 初始调用
getData();
/**
* @name: 将data绑定值dataRef
* @author: camellia
* @email: guanchao_gc@qq.com
* @date: 2021-01-10
*/
const dataRef = toRefs(data);
return {
getData,
changePage,
...dataRef
}
},//*/
};
代码中有注释,我这里就不做赘述了。
当然,你还可以扩展其他功能。
有好的建议,请在下方输入你的评论。
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https://guanchao.site