前端简单实现分页功能，无后端静态官网，请求本地json列表

最近在做公司静态官网，无后端支持，新闻列表使用本地json数据形式获取，以下是简单的分页功能实现，写的比较仓促，后续再优化。

html部分：

       <div class="centerInContainer_page"><div class="centerInContainer_page1">上一页</div><div class="centerInContainer_page2"><!-- <div class="centerInContainer_page2_item centerInContainer_page2_item1">1</div> --></div><div class="centerInContainer_page3">下一页</div><div class="centerInContainer_page4">共<span class="centerInContainer_page_all"></span>页，每页 <spanclass="centerInContainer_page_item"></span>条</div></div>

js部分：

// 每页新闻条数
let newsNumItem = 5;$(function () {$.ajax({//请求方式为gettype: "GET",//json文件位置url: "../../../json/newsInfo.json",//返回数据格式为jsondataType: "json",//请求成功完成后要执行的方法success: function (res) {// 获取新闻条数const pages = Math.ceil(res.data.length / newsNumItem);// 每页条数$(".centerInContainer_page_item").text(newsNumItem);// 共？页$(".centerInContainer_page_all").text(pages);// 页码展示for (let i = 1; i <= pages; i++) {$(".centerInContainer_page2").append(`<div class="centerInContainer_page2_item centerInContainer_page2_item${i}">${i}</div>`);}// 当前页记录let pageIndex = 1;// 鼠标悬浮/离开样式for (let i = 1; i <= pages; i++) {$(`.centerInContainer_page2_item${i}`).mouseenter(function () {if (pageIndex != i) {$(`.centerInContainer_page2_item${i}`).css("backgroundColor","#0269B7");$(`.centerInContainer_page2_item${i}`).css("color", "#fff");}});$(`.centerInContainer_page2_item${i}`).mouseleave(function () {if (pageIndex != i) {$(`.centerInContainer_page2_item${i}`).css("backgroundColor","#fff");$(`.centerInContainer_page2_item${i}`).css("color", "#000");}});}//第一次加载 默认展示第一页$(`.centerInContainer_page2_item1`).css("backgroundColor", "#0269B7");$(`.centerInContainer_page2_item1`).css("color", "#fff");//对应新闻列表页码展示const dataShow = [];const dataAll = JSON.parse(JSON.stringify(res.data));for (let index in dataAll) {if (Number(index) >= 0 && Number(index) < newsNumItem) {dataShow.push(dataAll[index]);}}// 填充domfor (let item of dataShow) {$(".centerInContainer_list").append($(`     <div class="centerInContainer_list_item"><img src="${item.imgurlList}" alt=""class="centerInContainer_list_item_img"><div class="centerInContainer_list_item_info"><div class="centerInContainer_list_item_info1">${item.title}</div><div class="centerInContainer_list_item_info2"></div><div class="centerInContainer_list_item_info3">${item.info}</div><div class="centerInContainer_list_item_info4"><div class="centerInContainer_list_item_info4_left">${item.time}</div><a href="${item.linkDetail}"class="centerInContainer_list_item_info4_right">查看详情>></a></div></div></div>`));}// 页码点击for (let i = 1; i <= pages; i++) {$(`.centerInContainer_page2_item${i}`).click(function () {// 修改当前页记录pageIndex = i;// 页码按钮样式控制$(`.centerInContainer_page2_item${i}`).css("backgroundColor","#0269B7");$(`.centerInContainer_page2_item${i}`).css("color", "#fff");for (let j = 1; j <= pages; j++) {if (j != i) {$(`.centerInContainer_page2_item${j}`).css("backgroundColor","#ffffff");$(`.centerInContainer_page2_item${j}`).css("color", "#000");}}//对应新闻列表页码展示const dataShow = [];const dataAll = JSON.parse(JSON.stringify(res.data));for (let index in dataAll) {if (Number(index) + 1 > newsNumItem * (i - 1) &&Number(index) < newsNumItem * i) {dataShow.push(dataAll[index]);}}// 清空dom$(".centerInContainer_list").empty();// 填充domfor (let item of dataShow) {$(".centerInContainer_list").append($(`     <div class="centerInContainer_list_item"><img src="${item.imgurlList}" alt=""class="centerInContainer_list_item_img"><div class="centerInContainer_list_item_info"><div class="centerInContainer_list_item_info1">${item.title}</div><div class="centerInContainer_list_item_info2"></div><div class="centerInContainer_list_item_info3">${item.info}</div><div class="centerInContainer_list_item_info4"><div class="centerInContainer_list_item_info4_left">${item.time}</div><a href="${item.linkDetail}"class="centerInContainer_list_item_info4_right">查看详情>></a></div></div></div>`));}});}// 点击上一页$(".centerInContainer_page1").click(function () {if (pageIndex == 1) {return;}pageIndex--;// 页码按钮样式控制$(`.centerInContainer_page2_item${pageIndex}`).css("backgroundColor","#0269B7");$(`.centerInContainer_page2_item${pageIndex}`).css("color", "#fff");for (let j = 1; j <= pages; j++) {if (j != pageIndex) {$(`.centerInContainer_page2_item${j}`).css("backgroundColor","#ffffff");$(`.centerInContainer_page2_item${j}`).css("color", "#000");}}//对应新闻列表页码展示const dataShow = [];const dataAll = JSON.parse(JSON.stringify(res.data));for (let index in dataAll) {if (Number(index) + 1 > newsNumItem * (pageIndex - 1) &&Number(index) < newsNumItem * pageIndex) {dataShow.push(dataAll[index]);}}// 清空dom$(".centerInContainer_list").empty();// 填充domfor (let item of dataShow) {$(".centerInContainer_list").append($(`     <div class="centerInContainer_list_item"><img src="${item.imgurlList}" alt=""class="centerInContainer_list_item_img"><div class="centerInContainer_list_item_info"><div class="centerInContainer_list_item_info1">${item.title}</div><div class="centerInContainer_list_item_info2"></div><div class="centerInContainer_list_item_info3">${item.info}</div><div class="centerInContainer_list_item_info4"><div class="centerInContainer_list_item_info4_left">${item.time}</div><a href="${item.linkDetail}"class="centerInContainer_list_item_info4_right">查看详情>></a></div></div></div>`));}});// 点击下一页$(".centerInContainer_page3").click(function () {if (pageIndex == pages) {return;}pageIndex++;// 页码按钮样式控制$(`.centerInContainer_page2_item${pageIndex}`).css("backgroundColor","#0269B7");$(`.centerInContainer_page2_item${pageIndex}`).css("color", "#fff");for (let j = 1; j <= pages; j++) {if (j != pageIndex) {$(`.centerInContainer_page2_item${j}`).css("backgroundColor","#ffffff");$(`.centerInContainer_page2_item${j}`).css("color", "#000");}}//对应新闻列表页码展示const dataShow = [];const dataAll = JSON.parse(JSON.stringify(res.data));for (let index in dataAll) {if (Number(index) + 1 > newsNumItem * (pageIndex - 1) &&Number(index) < newsNumItem * pageIndex) {dataShow.push(dataAll[index]);}}// 清空dom$(".centerInContainer_list").empty();// 填充domfor (let item of dataShow) {$(".centerInContainer_list").append($(`     <div class="centerInContainer_list_item"><img src="${item.imgurlList}" alt=""class="centerInContainer_list_item_img"><div class="centerInContainer_list_item_info"><div class="centerInContainer_list_item_info1">${item.title}</div><div class="centerInContainer_list_item_info2"></div><div class="centerInContainer_list_item_info3">${item.info}</div><div class="centerInContainer_list_item_info4"><div class="centerInContainer_list_item_info4_left">${item.time}</div><a href="${item.linkDetail}"class="centerInContainer_list_item_info4_right">查看详情>></a></div></div></div>`));}});},});
});

css部分：

/* 分页 */
.centerInContainer_page {display: flex;justify-content: center;
}.centerInContainer_page1 {width: 1rem;height: 0.36rem;line-height: 0.36rem;background-color: #ffffff;border-radius: 0.04rem;border: solid 0.01rem #d6d6d6;text-align: center;cursor: pointer;margin-right: 0.24rem;
}.centerInContainer_page1:hover {background-color: #0269B7;color: #FFF;
}.centerInContainer_page2 {height: 0.36rem;margin-right: 0.14rem;display: flex;
}.centerInContainer_page2_item {width: 0.36rem;height: 0.36rem;line-height: 0.36rem;background-color: #ffffff;border-radius: 0.04rem;border: solid 0.01rem #d6d6d6;text-align: center;cursor: pointer;margin-right: 0.1rem;
}.centerInContainer_page3 {width: 1rem;height: 0.36rem;line-height: 0.36rem;background-color: #ffffff;border-radius: 0.04rem;border: solid 0.01rem #d6d6d6;text-align: center;cursor: pointer;margin-right: 0.24rem;
}.centerInContainer_page3:hover {background-color: #0269B7;color: #FFF;
}.centerInContainer_page4 {width: 1.8rem;height: 0.36rem;line-height: 0.36rem;background-color: #ffffff;border-radius: 0.04rem;border: solid 0.01rem #d6d6d6;text-align: center;/* cursor: pointer; */
}.centerInContainer_page4 span {color: #0269B7;font-weight: bolder;
}