组件基本布局
template>
<div class="xtx-pagination">
<a href="javascript:;" v-if="myCurrentPage==1" class="disabled">上一页</a>
<a href="javascript:;" v-else @click="go(-1)">上一页</a>
<span v-if="pageInfo.start>2">...</span>
<a
href="javascript:;"
:class="{active: myCurrentPage === item}"
v-for="(item,idx) in pageInfo.pager"
:key="idx"
@click="changePage(item)"
>{{item}}</a>
<span v-if="pageInfo.end < pageInfo.pageCount">...</span>
<a href="javascript:;" v-if="myCurrentPage==pageInfo.end" class="disabled">下一页</a>
<a href="javascript:;" v-else @click="go(1)">下一页</a>
</div>
</template>
<script>
export default {
name: 'XtxPagination'
}
</script>
<style scoped lang="less">
.xtx-pagination {
display: flex;
justify-content: center;
padding: 30px;
> a {
display: inline-block;
padding: 5px 10px;
border: 1px solid #e4e4e4;
border-radius: 4px;
margin-right: 10px;
&:hover {
color: @xtxColor;
}
&.active {
background: @xtxColor;
color: #fff;
border-color: @xtxColor;
}
&.disabled {
cursor: not-allowed;
opacity: 0.4;
&:hover {
color: #333
}
}
}
> span {
margin-right: 10px;
}
}
</style>
分页内部逻辑
setup (props, { emit }) {
const myTotal = ref(100) // 总条数
const myPageSize = ref(5) // 每页共几条
const myCurrentPage = ref(2) // 用户实时点击,修改
const myBtnCount = ref(5) // 分页按钮的个数5个
// 根据上边信息,实时计算 pager,起始页码,结束页码
const pageInfo = computed(() => {
// 总页数
const pageCount = Math.ceil(myTotal.value / myPageSize.value) // 一共有几页
// 起点
let start = myCurrentPage.value - Math.floor(myBtnCount.value / 2)
// 终点
let end = start + myBtnCount.value - 1
// 意外1
if (start < 1) {
start = 1
end = myBtnCount.value > pageCount ? pageCount : myBtnCount.value
}
// 意外2
if (end > pageCount) {
end = pageCount // 最大的页码
start = (end - myBtnCount.value + 1) < 1 ? 1 : (end - myBtnCount.value + 1)
}
const pager = []
for (let i = start; i <= end; i++) {
pager.push(i)
}
return { pager, start, end, pageCount }
})
const go = step => {
myCurrentPage.value = myCurrentPage.value + step
}
return { myTotal, myPageSize, myCurrentPage, myBtnCount, pageInfo, changePage, go }
}
接收外部数据,提供分页事件
props: {
total: { type: Number, default: 100 },
pageSize: { type: Number, default: 10 },
currentPage: { type: Number, default: 1 },
btnCount: { type: Number, default: 5 }
},
通过watch实时接收
// 监听传入的值改变
watch(props, () => {
myTotal.value = props.total
myPageSize.value = props.pageSize
myCurrentPage.value = props.currentPage
myBtnCount.value = props.btnCount
}, { immediate: true })
抛出事件
// 改变页码
const changePage = (page) => {
if (page === myCurrentPage.value) {
return
}
myCurrentPage.value = page
emit('current-change', page)
}
使用组件
const list = ref([])
* const total = ref(0)
// 修改条件,查询自动执行
watch(queryParams, () => {
findCommentListByGoods(goodsData.id, queryParams).then(data => {
console.log('findCommentListByGoods', data)
list.value = data.result.items
* total.value = data.result.counts
})
}, { immediate: true })
// 更新页码
const pageChange = page => {
queryParams.page = page
}
return { evaluateInfo, curIdx, list, format, changeSort, queryParams, selectTag, pageChange, total }
视图
<!-- 分页 -->
<XtxPagination :total="total" @current-change="pageChange" />
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